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HP 1055CM User's Manual

1. oo Figure 13 Air Tube 7 Remove the ink cartridge tube connector item 1 from the rear of the left hand cover item 2 and store it safely on top of the Printer refer to Figure 14 DB Figure 14 Ink Cartridge Tube Connector pulled out 8 16 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE In the following steps refer to Figure 15 Remove two T 15 screws item 1 from the left hand trim Remove two T 15 screws item 2 from the rear of the left hand cover which are securing the cover to the left hand side chassis NOTE Be careful not to drop the cover once the securing fasteners have been removed 10 Remove the left hand cover item 3 from the printer C607406 Figure 15 Left Hand Cover HP DesignJets 1050C and 1055CM Printers Service Manual 8 17 Removal and Installation Left Hand Trim Assembly Refer to Figure 16 Removal 1 Remove 4 screws Item 1 that attach the Left Hand Trim Item 2 to the Printer 2 Remove the Left Hand Trim Item 2 from the Printer C607406 Figure 16 Left Hand Trim 8 18 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Ink Supply Station Assembly ISS WARNING NOTE NOTE Refer to F
2. Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 J3113 61001 1 EIO Card 2 C6075 60005 1 Hard Disk Drive 3 C6072 60176 1 DIMM Cover 4 0515 2246 4 Screw 5 C6074 60003 1 DRAM DIMM 16MB C6074 60004 1 DRAM DIMM 32MB C6074 60005 1 DRAM DIMM 64MB 6 C6074 60009 1 Firmware DIMM HP DesignJet 1050C C6075 60009 1 Firmware DIMM HP DesignJet 1055CM 7 C6072 60171 1 Left Rear Cover Includes Ferrite and Clip 8 0515 2282 1 Screw 9 C6072 60172 1 Right Rear Cover 10 0515 2282 1 Screw 11 C6072 60146 1 Electronics Module 12 0515 0382 4 Screw for Electronics Module C6072 60177 1 EIO Card Cover 7 6 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 5 Electronics Module HP DesignJets 1050C and 1055CM Printers Service Manual 7 7 Parts and Diagrams Right Hand Cover 1 C6072 60165 1 Right Hand Cover Includes Front Panel Cable 0624 0771 4 Screw 3 C6072 60174 1 Right Hand Trim Includes Window Sensor 0515 2248 1 Screw 5 0624 0771 1 Screw C6072 60175 1 Front Panel Assembly Includes Front Panel Cable C6071 60154 1 Quick Reference Guide Holder 7 8 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 6 Right Hand Cover 7 9 HP D
3. Figure 53 Printhead Tube Connector HP DesignJets 1050C and 1055CM Printers Service Manual 8 53 Removal and Installation 3 Remove the following 1 Window see page 8 30 2 Top Cover see page 8 31 NOTE For the following steps refer to Figure 54 4 Loosen the retaining screw T 9 at the back of the printhead tube connector 5 Remove the printhead tube connector View from the rear aA Push in here b Pull here C Loosen this screw f Printhead tube connector Figure 54 Printhead Tube Connector Removal 6 Remove the tube retaining clip item 1 from the back of the printer refer to Figure 55 Figure 55 Tube Retaining Clip 8 54 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE Working from the rear of the printer 7 Open the door at the back of the left hand cover by removing two T15 screws item 1 refer to Figure 56 N Figure 56 Rear Left Hand Cover 8 Release the tube holder item 1 from the rear of the left hand cover by pushing it up and out refer to Figure 57 er TH XU D ANS gt ane UP p WZ Pp Jy 2082a Figure 57 Rear Tube
4. S21 AP A CZ 4 se o 4 Sl AENA SZ eas al a C WAG f Z A X 2082a Figure 9 Tube Grip 3 Twist the two latches at the rear of the ink cartridge tube connector outwards refer to Figure 10 This will release the complete assembly Figure 10 Latches 8 14 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 4 Slide the ink cartridge tube connector assembly towards you refer to Figure 11 mH L4 S Va A D lt a IK SN SIS SAN ral A ma R T ATE N S 2082c Figure 11 Ink Cartridge Tube Connector pulled back 5 Disconnect the ink cartridge tube connector cable refer to Figure 12 fi Figure 12 Ink Cartridge Tube Connector Cable HP DesignJets 1050C and 1055CM Printers Service Manual 8 15 Removal and Installation 6 Disconnect the air tube refer to Figure 13 2 eee ae 1 Press down here tube here
5. c Ifyou selected to continue the Calibrations Backup will start to update the calibrations and the following message will be displayed on the front panel Updating Backup Please wait d Once the Calibrations Backup has been completed the following message will appear on the front panel EE Ey Back E m Enter If the Tubes System was replaced a Ifthe Tubes System was replaced then select Tubes System and press Enter i Back mt a Ei Enter b The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Calibrations Backup or select Backup completed Press ENTER to continue Press Enter CALIBRATIONS BACKUP What have you replaced Make Selection Press Enter 5 20 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations CANCEL if you want to cancel the Calibrations Backup Press Enter once the selection has been made CALIBRATIONS BACKUP Tubes System has been replaced ACCEPTS Make Selection CANCEL Press Enter c If you selected to continue the Calibrations Backup will start to update the calibrations and the following message will be displayed on the front panel Updating Backup Please wait d Once the Calibrations Backup has been completed the following message will appear on the front panel EE Backup completed az Back
6. Roller Guide Refer to Figure 72 to Figure 75 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following Left Hand Cover see page 8 13 Right Hand Cover see page 8 4 Electronics Module see page 8 25 Ink Supply System Assembly see page 8 19 Service Station Assembly see page 8 8 NM KW N Paper axis Motor Assembly see page 8 12 NOTE Working from the rear of the printer 2 Remove the two T 15 screws item 1 securing the left hand rear platen mount item 2 refer to Figure 72 3 Remove the two T 15 screws item 3 securing the right hand rear platen mount item 4 refer to Figure 72 Figure 72 Platen Mounts 8 66 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 4 Remove the four T 15 screws item 1 securing the left hand electronic module mount item 2 to the left hand side chassis refer to Figure 73 Figure 73 Left Electronic Module Mount 5 Remove the four T 15 screws item 1 securing the right hand electronic module mount item 2 to the right hand side chassis refer to Figure 74 Figure 74 Right Electronic Module Mount HP DesignJets 1050C and 1055CM Printers Service Manual 8 67 Removal and Installation NOTE For the following steps refer to Figure 75 6 Remove the three T 15 screws from the right side of the roller guide assembly item 2 NOTE Be c
7. WARNING Installation of the Electronics Module When reconnecting the Trailing Cable to the Electronics Module make sure you connect it correctly as follows Start reconnecting the Trailing Cable from left to right the longest strip will be connected to the Ist clip from the right Make sure you push the Trailing Cable in straight and not bent Once the Trailing Cable is inserted you should hear an audible click When the Trailing Cable is inserted correctly the shaded part as shown below will not be visible Before powering ON the Printer check the continuity using a tester between the two points as shown below m If there is continuity between the two points then the Trailing Cable is installed incorrectly Do NOT power ON the Printer because you will burn an internal Electronics Module fuse Disconnect the Trailing Cable and reconnect again using the above steps m If there is no continuity between the two points then it is possible to power ON the Printer without burning the internal Electronics Module fuse but there is a possibility that you may still get the System Error Code 0B0006 in which case you have to reconnect the Trailing Cable using the above steps Check Continuity between these 2 points be visible when installed correctly Fi Do Not install a damaged Trailing Cable C607440 HP DesignJets 1050C and 1055CM Printers Service Manual 8 27 Removal and Ins
8. Check all the cables of the APS and make sure they are correctly connected and are NOT damaged Check all the tubes of the APS and make sure they are NOT pinched or damaged Replace ALL the Ink Cartridges Replace the complete APS gt Page 8 20 Replace the Electronics Module Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed 4 16 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING WARNING NOTE NOTE 5 Scan Axis The purpose of this test is to verify the operation of the Scan Axis Motor You must perform the Scan Axis Test after E Scan Axis Assemblies are disassembled or replaced E Carriage is disassembled or replaced m Electronics Module is replaced m Tubes System is disassembled or replaced ALL THE COVER SENSORS ARE DISABLED WHEN IN THE SERVICE TESTS MENU IF THE CARRIAGE IS MOVING IT WILL NOT STOP IF THE WINDOW IS OPENED SO BE VERY CAREFUL NOT TO PUT YOUR HANDS INSIDE IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE SCAN AXIS MOTOR IF THIS TEST PASSES DO NOT REPLACE THE SCAN AXIS MOTOR The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF
9. If all 4 Printheads have the Status Reseat it is possible that the Carriage Assembly is faulty The smartchip on the printhead is not correct or the digital communications between the Carriage and the Printhead is incorrect This situation must be corrected before the printer will operate 1 Reseat the Printhead Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 3 Replace the Printhead 4 Perform the Electronic Systems Test gt Page 4 5 If all 4 Printheads have the Status Faulty it is possible that the Carriage Assembly is faulty The printer does not recognize the printhead or printhead cleaner that you have inserted into the printer You will have to remove it before the printer can continue If the Printing Printheads are installed in the carriage during the priming process they will be rejected and the front panel will show the Wrong Model message The Printhead installed is not approved and must be replaced by a genuine HP No 80 Printhead 3 16 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting NOTE CAUTION Summary of Solving HP No 80 Supplies Problems Most of the problems that you could encounter when working with the HP No 80 supplies are solved with guidance from the front panel A full list of front messages are supplied in the Users Guide Problems reseating the printhead If you have ins
10. If the values obtained in the test are greater than the Maximum values in the previous table then the test has failed To resolve the problem try the following 1 Clean the Slider Rods and Apply Oil along the complete axis of the Slider Rods After applying the Oil perform the test again 2 Check that the Encoder Strip is clean If necessary clean Encoder Strip using a damp cloth 3 Check that the Tubes System is installed correctly 4 Check that the Carriage Belt and pulleys are installed correctly 5 Replace the Scan Axis Motor gt Page 8 33 HP DesignJets 1050C and 1055CM Printers Service Manual 4 19 Service Tests and Utilities WARNING NOTE NOTE 6 Paper Axis The purpose of this test is to verify the operation of the Paper Axis Motor IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE PAPER AXIS MOTOR IF THIS TEST PASSES DO NOT REPLACE THE PAPER AXIS MOTOR The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print Make sure you perform this test with NO media loaded Perform the Paper Axis test as follows In the Service Tests submenu scroll to 6 Paper Axis and press Enter or B Back mt ee BR enter Service Tests 3 Hard Disk Drive L Make Selection Ax k is
11. Print Quality 5 Print Quality Troubleshooting Checklist When faced with an Print Quality problem use the following checklist as a guide in troubleshooting the problem Problem reproduction m Reproduce the problem that the customer is seeing using their original settings Printer configuration m Print Mode Set to Best in the printer and in the drivers m Dry time Set to Automatic E Select the correct media setting when loading the media Hardware check list Firmware Revision m Check if the latest version of the firmware is installed If not Install the latest firmware revision Refer to Chapter 7 for the part number of the Flash SIMM Printheads Printhead Troubleshooting Process m If you don t have any samples yet reproduce the original problem with the correct printer settings m Print the Print Quality Test using the exact settings and Media that the Customer used when faced with the Print Quality problem Printhead Alignment and Check m Perform the Printhead Alignment using HP High Gloss Photo Paper If not available use Coated media if required Media m Make sure that you use HP or HP approved media E Select the correct media type through the front panel when loading it Driver print quality configuration To clarify if the reason of the problem is related with the print mode defined with the Non HP Driver try the following m Print the same sample using the Non HP driver and their nor
12. T Chinese Traditional Korean J Japanese E eer I Make Selection Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 4 33 Service Tests and Utilities 3 The following message will be displayed on the front panel asking you to confirm the selection Select ACCEPT if you want to continue with your selection or select CANCEL if you want to cancel it Press Enter once the selection has been made EE i i I Back Chinese simplified Font selected eed T r Make Selection a fal Enter 4 Once the Font selection has been made the following message will be displayed on the front panel mj Top B Back E a B Enter SET ASIAN PS FONT Press Enter Postscript asian font selection done Press ENTER to continue Press Enter 4 34 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 4 Printer Model Type The purpose of this Service Utility is to set the correct Printer Model NOTE The Printer Model Type only needs to be set when both the Tubes System and the Electronics Module have been replaced at the same time Set the Printer Model Type as follows 1 In the Service Utilities submenu scroll to 4 Printer Model Type and press Enter Service Utilities 1 Tubes Purge L Make Selection 5 Overdrive Cleaning Press Enter 2 When the following message appears on the front pa
13. m Replace the Service Station Page 8 8 m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 17 System Error Codes System Error Problem Description Corrective Action System Error Problem Description Corrective Action System Error Problem Description Corrective Action WARNING System Error Codes During Initialization The following System Error Codes will only appear during the Initialization process when you power ON the Printer 0B0000 Bad Ambient Temperature measured Try the following m Make sure that the Ambient temperature is within the allowed range between 0 and 55 Degrees Centigrade m Replace the Electronics Module gt Page 8 25 0B0001 Bad Humidity read Replace the Electronics Module Page 8 25 0B0002 Bad IDS pressure read Try the following m Check that the cable from the Ink Supply Station ISS PCA to the Ink Supply Station is correctly connected m Check that the Air Pressurization System Sensor Cable is correctly connected and is NOT damaged m Check all the tubes of the APS and make sure they are NOT pinched or damaged m Faulty APS Sensor Replace the comple
14. Thin natural tracing paper greater than 70 g m From time to time new paper types may become available For up to date information please contact your HP dealer or our web site www designjet online hp com Also see the Supplies Source catalog and in Europe and USA HP Paper Guide For alternative names HP commercial names and physical characteristics of these paper types see chapter 3 Print resolution by mode setting Draft 300 x 300 dpi Normal 600 x 600 dpi Best 600 x 600 dpi Color prints Addressable 1200 x 600 dpi Grayscale prints in Best 10 12 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview Functional Specifications Roll normal Sheet normal Roll extended Sheet extended Margins Side Margins 5mm Side Margins 5mm _ Side Margins Side Margins Leading edge Leading edge 15mm 15mm Margin 10mm Margin 10mm Leading edge Leading edge Trailing Edge Trailing Edge Margin 10mm Margin 10mm Margin 5mm Margin 15mm Trailing Edge Trailing Edge Margin 5mm Margin 15mm Programming CALS G4 Type I languages HP GL supported HP GL 2 with Kanji Level 1 and 2 character sets HP RTL with color extensions PJL PML Adobe PostScript 3 supports Asian languages Vare Ware Accuracy 0 2 of the specified vector length at 23 C 73 F 50 60 Relative Humidity on HP special polyester film Physical Specifications Type Weigh
15. these clips 607443 Figure 18 Air Pressurization System Installation of the Air Pressurization System APS When assembling the APS make sure that the air tube is correctly routed and not pinched NOTE Perform the Ink Pressure System Test Page 4 14 after reinstalling the APS to make sure that it functions correctly 8 20 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Clutch Assembly and left hand miscellaneous parts WARNING NOTE NOTE Refer to Figure 19 and Figure 20 Removal Switch off the printer and remove the power cord 1 Remove the following 1 Left Hand Cover see page 8 13 2 Ink Supply System Assembly see page 8 19 From steps 2 to 5 refer to Figure 19 2 Pull apart the two tabs on the Paper Entry gear item 1 and remove the gear 3 Using along screwdriver remove two T 15 screws item 5 securing the clutch bracket item 6 to the side chassis 4 Remove the special T 20 screw item 2 In the next step the assembly is spring loaded and when the retaining screw is removed it may help to hold the assembly with one hand to avoid loosing parts 5 Remove the gears item 3 and the spring item 4 in the clutch assembly Refer to the note above ee C607420a Figure 19 Clutch Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 8 21 Removal and Installation NOTE For the following steps refer t
16. 7 Drop Detector Press Enter 2 The test will start and the following messages will appear on the front panel PAPER AXIS PAPER AXIS Running Paper Running Paper Axis Test Axis Test pressing clutch 4 20 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 3 Once the test is completed the following message will appear on the front panel PAPER AXIS X Avg PWM C XXX If the values of the Max PWM is less than 95 and the Avg PWM is less than 85 then the test has passed If the values of the Max PWM is more than 95 and the Avg PWM is more than 85 then the test has failed To resolve the problem try the following 1 Open the Window and check for any visible obstacles restricting the movement of the Drive Roller or the Overdrive Assembly 2 Replace the Paper Axis Motor Page 8 12 If the values of the Max PWM is less than 95 and the Avg PWM is less than 85 but the values of the Max PWM C is more than 100 and the Avg PWM C is more than 90 then the test has failed To resolve the problem try the following 1 Replace the Overdrive Assembly Page 8 64 HP DesignJets 1050C and 1055CM Printers Service Manual 4 21 Service Tests and Utilities 7 Drop Detector The purpose of this test is to verify the operation of the Drop Detector WARNING IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE DROP DETECTOR IF THIS TEST PASSES D
17. 9 To check if the Calibration was completed correctly print the Service Configuration Print see Page 7 79 and check that the values given for the Accuracy Calibration are NOT ALL zero Check that these value are NOT ALL zero 10 Ifthe calibration fails Perform the Electronic Systems Test gt Page 4 5 5 8 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 2 Line Sensor The purpose of this Service Calibration is to calibrate the intensity of the line sensor in the Carriage PCA An incorrect calibration can result in edge detection failures during media loading and incorrect reading of prints that are used for alignment or calibration Perform the Line Sensor Calibration whenever m Edge detect procedure fails during media loading m Carriage is disassembled or replaced m Banding is detected in prints m Misalignment between colors is detected Perform the Line Sensor Calibration as follows NOTE Make sure you load HP Coated media in to the Printer before performing this calibration 1 Inthe Service Calibrations submenu scroll to 2 Line Sensor cal and press Enter eo B Back 5 Pen to Paper Specing B Enter Service Calibrations L Make Selection Press Enter 2 The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Line Sensor Calibration or select CANCEL if you want to cancel
18. Enter Service Tests L Make Selection 5 Scan Axis Press Enter 2 The test will start and the following message will appear on the front panel EIO CARD Running EIO Card Test 3 If the test passes then the following message will appear on the front panel EIO CARD Tests passed 4 10 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING NOTE WARNING IF THIS TEST PASSES DO NOT REPLACE THE EIO CARD If there is a problem with the EIO Card then the test will fail and the following message will appear on the front panel EIO CARD Possible Failure on 1 EIO CARD 2 Electronics Module Code 0OXXXX 0000XX Check that the EIO Card is actually installed before starting to troubleshoot If the EIO Card is NOT installed the test will of course always fail In this case to resolve the problem try the following Switch the printer OFF Remove the Hard Disk Drive if installed and reinstall the EIO Card making sure it installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened Switch the printer ON again and repeat the EIO Card Test If the EIO Card Test fails again then replace the EIO card If the EIO Card Test passed after removing the Hard Disk Drive then switch the Printer OFF and reinstall the Hard Disk Drive making sure that the two installation screws are complete
19. SA T the trailing cable straight LZ without any bubbles HP DesignJets 1050C and 1055CM Printers Service Manual 8 41 Removal and Installation Cutter Assembly Refer to Figure 38 to Figure 40 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Top Cover see page 8 31 2 Move the carriage to a position where you can access the printhead tube connector refer to Figure 38 Printhead tube connector Figure 38 Cutter Assembly 8 42 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE For steps 3 and 4 refer to Figure 39 3 Loosen the retaining screw T 9 at the back of the printhead tube connector 4 Remove the printhead tube connector refer to Figure 39 View from the rear a Push in here D Pull here C Loosen this screw Printhead tube connector Figure 39 Cutter Assembly 5 Move the Printhead tube connector to a safe position NOTE For the following steps refer to Figure 40 6 Remove one screw item 1 and washer item 2 that attaches the Cutter Assembly item 3 to the Carriage Assembly item 4 7 Slide the Cutter Assembly item 3 towards you and remove from the Printer C607417a Figure 40 Cutter Assembly HP DesignJets 1
20. mode baud sel L B Enter Press Enter When the following message appears on the front panel you must select the Baudrate setting using the Up and Down arrow keys Press ENTER once you have made your selection MON BAUDRATE SEL 19200 Change Baudrate Press Enter to make selection 4 42 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations Service Calibrations 5 2 Entering the Service Calibrations Menu 5 4 1 Accuracy Calibration 5 6 2 Line Sensor 5 9 3 Service Station 5 11 4 Roller Mark Position 5 13 5 6 T 8 Pen to Paper Spacing 5 15 Color to Color calibration 5 16 Calibrations Backup 5 19 Pen Alignment 5 22 Carriage Height Calibration 5 24 HP DesignJets 1050C and 1055CM Printers Service Manual 5 1 Service Calibrations Service Calibrations The Printer has several calibration procedures that must be performed under certain conditions Refer to the table below to determine when calibrations are required WARNING REMEMBER THAT CERTAIN CALIBRATIONS ARE REQUIRED EVEN IF AN ASSEMBLY HAS BEEN DISASSEMBLED TO GAIN ACCESS TO ANOTHER ASSEMBLY OR COMPONENT Which Calibrations Need To Be Done When Required 1 2 3 4 5 6 T 8 Carriage is disassembled or No Yes Yes Yes No Yes No Yes Yes replaced Electronics Module is No No No No No No Yes Yes No replaced Paper Axis is disassembled Yes No No No No Yes No No No or replaced Platen Assembly is No No Yes N
21. ss mt 5 Perto Paper pacing O SS Enter Service Calibrations I Make Selection Press Enter 2 The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Roller Mark Position Calibration or select CANCEL if you want to cancel the it Press Enter once the selection has been made EE Back mt Ea Enter 3 If you selected to continue the calibration will start and the following message will appear on the front panel 4 Roller Mark Position Press Enter Performing roller mark calibration Please wait HP DesignJets 1050C and 1055CM Printers Service Manual 5 13 Service Calibrations 4 Once the roller mark position calibration is completed the following message will be displayed on the front panel E Roller mark position calibrated A Ey Back Enter Press ENTER to continue Press Enter 5 14 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 5 Pen to Paper Spacing WARNING THIS CALIBRATION IS NO LONGER REQUIRED AND SHOULD NEVER BE PERFORMED HP DesignJets 1050C and 1055CM Printers Service Manual 5 15 Service Calibrations 6 Color to Color calibration The purpose of this Service Calibration is to correct the alignment between the Printheads and the rest of the Printer This calibration is necessary in order to prevent color misalignment Perform
22. you will be able to determine exactly which component failed 4 24 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities Service Utilities The following is a list of all internal Service Utilities available in the Printers Instructions for entering the Service Utilities menu are given on Page 4 26 1 Tubes Purge gt Page 4 28 The purpose of this Service Utility is to Prime the Tubes when a new Tubes System has been installed 2 Release Info Page 4 32 This Service Utility provides information on the current Firmware version 3 Set Asian PS Font Page 4 33 The purpose of this Service Utility is to set the Asian Fonts after replacing the Hard Disk Drive 4 Printer Model Type Page 4 35 The purpose of this Service Utility is to set the correct Printer Model 5 Overdrive Cleaning Page 4 37 The purpose of this Service Utility is to rotate the Overdrive in order to clean it 6 EEROM Utilities gt Page 4 38 The purpose of this Service Utility is to either clear the EEROM or to test it 7 Printhead Check gt Page 4 41 This Service Utility allows you to have the Printhead checking facility ON or OFF 8 Mon Mode Baud Sel Page 4 42 This Service Utility allows you to change the Baudrate of the Serial Port HP DesignJets 1050C and 1055CM Printers Service Manual 4 25 Service Tests and Utilities Entering the Service Utilities Menu 1 Once the message Ready is displayed o
23. 44 Power OFF the Printer and connect a new Electronics Module to the Trailing Cable without removing the old Electronics Module from the Printer Perform this test again and if the test FAILS then DO NOT replace the Electronics Module If the test PASSES replace the Electronics Module Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed 4 8 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING Carriage Test Failure If there is a problem with the Carriage and any related parts then the following message will appear on the front panel ELECTRONIC SYSTEMS In this case try one of the following Remove the Printheads and clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 Reinstall the Printheads and try the test again If the test fails again replace the Printheads Make sure that the Trailing Cable is connected correctly to the Carriage Assembly and to the Electronics Module Power OFF the Printer and connect a new Trailing Cable to the Carriage and the Electronics Module without removing the old Trailing Cable from the Printer Perform this test again and if the test FAILS then DO NOT replace the trailing cable If the test PASSES replace the Trailing Cable gt Page 8 39
24. 5 x 20 6 20 6 x 31 5 801 x 524 524 x 801 AO portrait 45 3 x 31 5 31 5 x 45 3 1153 x 801 801 x 1153 For margins see page 5 9 This table is calculated using normal margins 10 16 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview Interface Specifications Below are the parallel interface specifications For specifications of the HP JetDirect Print Server Network Interface see the JetDirect Print Server documentation supplied with the Print Server Interface or consult your dealer Parallel IEEE 1284 compatible Centronics Interface The connector on the printer is 36 pin Pin Wire Signal Name Source female 1 Strobe computer Most existing parallel cables support 29 DO D7 data both IEEE 1284 compatible fies communication but for use with this printer the cable must meet the 10 Ack printer specification in this table 11 Busy printer 12 PError printer 13 Select SelectOut printer 14 AutoFd computer 16 GND 19 30 GND 31 Init computer 32 Fault printer 36 SelectIn computer The following cable is recommended for optimum performance and electromagnetic compatibility Recommended Cable for PCs and Unix Systems Interface type Computer HP part number Cable length Connector type at computer end of cable IEEE compatible Centronics C2951A 3 0m 25 pin male I
25. 6 18 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality d Perform the printhead alignment procedure e Reprint the image you were attempting to print before in the same mode to see if the problem still exists f If there is no improvement in the quality of your image print the Print Quality Test again and continue to the next step 10 Check the bottom section of the Print Quality Test If there is banding in all colors continue with step 10a If there is banding in only a few colors go directly to step 11 w Se PR FE Bas i UTAH C6074281 a Itis possible that the banding was caused because the customer was using non HP media If the customer still wants to use non HP media recalibrate the paper accuracy by performing the accuracy calibration Performing this a will overwrite the default setting for only the paper that you have selected NOTE If the customer wants to use HP certified paper at a later stage they can restore the optimal setting to what it was by going to Utilities Calibration Accuracy Restore Factory HP DesignJets 1050C and 1055CM Printers Service Manual 6 19 Print Quality NOTE 11 When you look at the image you have printed there is banding on the image but only in a few colors similar to the example shown below w C6074280 a The possible combinations with this problem are m Banding in cyan blue and green c
26. 8 20 Carriage Assembly 8 51 Electronics Module 8 27 Platen Assembly 8 63 Right Hand Cover 8 6 Trailing Cable 8 40 Interface Specifications 10 17 ISS Assembly 7 14 L Leak Detect System 10 8 Left Hand Cover 7 10 8 13 Left Hand Trim 8 18 Left Rear Cover 8 24 Level of Printer Usage 9 3 Line Sensor Calibration 5 9 Long term bleed 1 12 Lower image gloss 1 13 M Media 6 24 Media Holder Strip 8 69 Media Jams 1 7 Media Sensor 7 30 8 29 Memory Specifications 10 13 Moisture on the Printer 9 2 N No Printing Defects 6 21 Noisy Carriage Bushing 9 2 Nozzle Defects 6 7 Nozzle Print Test 6 6 O Overdrive Cleaning 4 37 Index 2 HP DesignJets 1050C and 1055CM Printers Service Manual P Paper Axis Service Test 4 20 Paper Entry Assembly 8 64 Paper Path 7 24 Paper axis Motor 8 12 Parts List APS Assembly 7 14 ARSS Miscellaneous Parts 7 22 Carriage Assembly 7 18 Center Guide 7 30 Clutch Assembly 7 16 Drive Roller Assemblies 7 28 Electronics Module 7 6 Ink Supply Station 7 14 Left Hand Cover 7 10 Media Sensor 7 30 Paper Path Assemblies 7 24 Pinch Assembly 7 26 Printer Support 7 2 Rear Covers 7 4 Right Hand Assemblies 7 12 Right Hand Cover 7 8 Scan Axis Assemblies 7 20 Tubes Guide Assemblies 7 32 Window 7 10 Pen Alignment 5 22 Physical Specifications 10 13 Pinch Assembly 7 26 Pinch Wheel Assembly 8 73 Platen Assembly 8 63 Power Supply Unit 10 3 Preventive Maintenance Kit 9 4 Priming the Ink System 3 6 Pr
27. B_ portrait 15 5 x 9 8 9 8 x 15 5 395 x 249 249 x 395 B landscape 15 7 x 9 5 9 5 x 15 7 401 x 243 243 x 401 C portrait 20 5 x 15 7 15 7 x 20 5 522 x 401 401 x 522 C landscape 20 8 x 15 5 15 5 x 20 8 529 x 396 396 x 529 D portrait 32 5 x 20 7 20 7 x 32 5 827 x 528 528 x 827 D landscape 32 8 x 20 5 20 5 x 32 8 834 x 523 523 x 834 E portrait 42 6 x 32 8 32 8 x 42 6 1082 x 834 834 x 1082 Architectural A portrait 10 5 x 7 8 7 8 x 10 5 268 x 119 199 x 268 paper A landscape 10 8 x 7 6 7 6 x 10 8 275 x 193 193 x 275 B_ portrait 16 5 x 10 8 10 8 x 16 5 421 x 275 275 x 421 B landscape 16 8 x 10 5 10 5 x 16 8 427 x 269 269 x 427 C portrait 22 6 x 16 8 16 8 x 22 6 574 x 427 427 x 574 C landscape 22 8 x 16 5 16 5 x 22 8 580 x 421 421 x 580 D portrait 34 5 x 22 8 22 8 x 34 5 878 x 580 580 x 878 D landscape 34 8 x 22 6 22 6 x 34 8 884 x 574 574 x 884 El portrait 40 5 x 28 8 28 8 x 40 5 1031 x 732 732 x 1031 E portrait 46 5 x 34 8 34 8 x 46 5 1183 x 884 884 x 1183 ISO paper A4 portrait 10 2 x 7 0 7 0 x 10 2 261 x 180 180 x 261 A4 landscape 10 1 x 6 8 6 8 x 10 1 257 x 174 174 x 257 A3 portrait 15 1 x 10 5 10 5 x 15 1 384 x 267 267 x 384 A3 landscape 14 9 x 10 2 10 2 x 14 9 380 x 261 261 x 380 A2 portrait 21 9 x 14 9 14 9 x 21 9 558 x 380 580 x 558 A2 landscape 22 2 x 15 1 15 1 x 22 2 564 x 384 384 x 564 Al portrait 31 6 x 21 8 21 8 x 31 6 805 x 554 554 x 805 Al andscape 31
28. Guide Assemblies 1 C6072 60195 1 Tube Guide Assembly 2 C6072 60194 1 Front Guide Assembly 3 C6072 60193 1 Right Arc Assembly 4 0624 0771 8 Screw 5 C6072 60192 1 Left Arc Assembly 7 32 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Left Hand Side Figure 18 SRK Tubes Guide Assemblies HP DesignJets 1050C and 1055CM Printers Service Manual 7 33 Parts and Diagrams Ordering Accessories Item HP Part Number HP DesignJet 1050C and 1055CM English C6071 90241 Quick Reference Guide Korean C6071 90242 Taiwanese C607 1 90243 German C607 1 90244 French C607 1 90245 Spanish C607 1 90246 Italian C6071 90247 Japanese C607 1 90248 Portuguese C607 1 90249 Chinese C607 1 90250 HP DesignJet 1050C and 1055CM User s English C6071 90101 Guide Korean C6071 90102 Taiwanese C607 1 90103 German C607 1 90104 French C6071 90105 Spanish C6071 90106 Italian C6071 90107 Japanese C6071 90108 Portuguese C6071 90109 Chinese C6071 90110 Czech C6071 90111 Greek C6071 90112 Hungarian C6071 90113 Polish C6071 90114 Russian C6071 90115 Thai C6071 90116 Turkish C6071 90117 Software Application Notes English C6074 90021 The HP GL 2 and HP RTL Reference Guide English 5961 3526 The Product Comparison Guide for HP GL 2 English 5959 9734 and HP RTL Peripherals PJL Technical Reference Manual English 5021 0328 PostScript Upgrade Kit C6076A
29. HP DesignJets 1050C and 1055CM Printers Service Manual 8 57 Removal and Installation 13 Remove the ink cartridge tube connector item 1 from the rear of the left hand cover item 2 rest the assembly on the left hand cover refer to Figure 62 C607431 Figure 62 Ink Cartridge Tube Connector pulled out 14 Push the tab item 1 towards you and then push the complete tube retaining clip item 2 to the right and then pull towards you refer to Figure 63 Figure 63 Tube Retaining Clip 8 58 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation The complete ink tube system is full of ink Now you can remove the complete Tubes System from the printer by sliding the tubes from between the tube guides Restarting the printer Turn the printer ON from the main power switch at the rear of the printer and from the power switch on the front panel The front panel displays System Startup Press Enter to Continue C4704034 3 Press the Enter button 4 Lift up the window and install four setup printheads into the Printhead carriage Refer to the User s Guide for details 5 Install the Ink Cartridges Refer to the User s Guide for details The front panel displays Initializing printer Wait C4704034 7 Wait for about 30 seconds 8 Remove the setup printheads from the printer carriage 9 Install the Printheads and the Printhe
30. How to fix the Nozzle Defects 6 7 Color Alignment Print Test 6 7 Solving the Color Alignment Problem 6 8 Overall Print Quality Test in BEST mode 6 9 What is Banding 6 9 Solving the Banding Problem 6 10 Aligning the Printheads 6 12 Service Accuracy Calibration 6 12 Troubleshooting Print Quality Problems 6 13 Problems with Stepped Lines 6 13 Problems with printing lines 6 14 Problems with Color to Color Alignment 6 15 Problems with Horizontal Lines Banding 6 17 No Printing Defects Found in the Print Quality Test 6 21 Solving Color Accuracy problems 6 22 Color Consistency problems 6 22 Long Term Color Bleeding Glossy Papers 6 22 Color Accuracy Configuration 6 23 Media 6 24 There are Smears or Scratching on the Printed Media 6 24 HP DesignJets 1050C and 1055CM Printers Service Manual Table of Contents Parts and Diagrams 7 1 Printer Support 7 2 Rear Covers 7 4 Electronics Module 7 6 Right Hand Cover 7 8 Left Hand Cover and Window 7 10 Right Hand Assemblies 7 12 ISS and APS Assembly 7 14 Clutch Assembly 7 16 Carriage Assembly 7 18 Scan Axis Assemblies 7 20 Drive Roller and ARSS Miscellaneous Parts 7 22 Paper Path Assemblies 7 24 Pinch Assembly 7 26 Drive Roller Assemblies 7 28 Center Guide and Media Sensor 7 30 Tubes Guide Assemblies 7 32 Ordering Accessories 7 34 Removal and Installation 8 1 Introduction 8 2 Safety Precautions 8 2 Electrostatic Discharge ESD Precautions 8 3 Required Tools 8 3 Right
31. I Make Selection Press Enter 2 The Printer will display the Firmware information An example is shown below 2 Release Info Rel A 01 02 Date Oct 27 1998 Time 12 20 02 BChann No 4 32 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING NOTE 3 Set Asian PS Fonts The purpose of this Service Utility is to select the Asian Fonts after replacing the Electronics Module ALWAYS SET THE ASIAN FONTS AFTER REPLACING THE ELECTRONICS MODULE If the customer is not using any internal Asian PS Fonts then this Service Utility is not necessary WARNING Set the Asian PS Font as follows In the Service Utilities submenu scroll to 3 Set Asian PS Font and press Enter EE Service Utilities BE Back 1 Tubes Purge 2 Release Info T 3 Set Asian PS Font 4 Printer Model Type Paj 5 Overdrive Cleaning i Enter L Make Selection Press Enter Make sure you select the correct Asian PS font Once the first PostScript file has been received by the Printer the rest of the Asian PS fonts will be deleted from the Electronics Module and there will be no way to recover them 3 Set Asian PS font A list of ALL the Asian PS Fonts will be displayed and you must select the font that you require Use the Up and Down arrow keys and press Enter once the selection has been made Et EE Back Chinese Simplified
32. Power OFF the Printer and connect a new Carriage Assembly to the Trailing Cable without removing the old Carriage Assembly from the Printer Perform this test again and if the test FAILS then DO NOT replace the Carriage Assembly If the test PASSES replace the Carriage Assembly Page 8 44 Power OFF the Printer and connect a new Electronics Module to the Trailing Cable without removing the old Electronics Module from the Printer Perform this test again and if the test FAILS then DO NOT replace the Electronics Module If the test PASSES replace the Electronics Module Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 4 9 Service Tests and Utilities WARNING NOTE 2 EIO Card The purpose of this test is to verify the operation of the EIO Card IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE EIO CARD IF THIS TEST PASSES DO NOT REPLACE THE EIO CARD The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print Perform the EIO Card test as follows In the Service Tests submenu scroll to 2 EIO Card and press
33. Problems Problems with Stepped Lines Description of problem When you look at the image you have printed there are stepped lines in the borders of arrows and diagonal lines The lines should be straight with no stepping Shown below is an example of what you might see if you have problems with Stepped Lines C6074283 How to solve the problem 1 Increase the dpi setting by changing the print quality to best in the front panel and driver software 2 The problems may be inherent in the image you are trying to print Try to improve the image with the application that generated the file HP DesignJets 1050C and 1055CM Printers Service Manual 6 13 Print Quality Recover Printheads cyan magent yellow black Problems with printing lines Description of problem When you look at the image you have printed there are m Missing or faint lines m Printed text having missing parts to them Shown below are examples of what you might see if you have problems with printing lines IES Missing parts of text this should Straight lines have missing sections say TEST C6074284 C6074285 How to solve the problem Go to the printer submenu and press Enter Printer submenu Go to Utilities Recover Printheads Select the printhead color which has the problem The printer will try to Recover the defective printhead If you are not sure which printhead color is giving you the problem sele
34. Service Manual Removal and Installation Trailing Cable Refer to Figure 36 and Figure 37 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Right Hand Cover see page 8 4 2 Left Hand Cover see page 8 13 3 Left Rear Cover see page 8 24 NOTE For steps 2 to 5 refer to Figure 36 2 Manually slide the carriage item 1 to the left side of the printer 3 Unclip and remove the trailing cable restraining clip item 2 4 Carefully disconnect the trailing cable item 3 from connectors in the Carriage PCA item 4 5 Remove the trailing cable from the trailing cable holder item 5 C607412 Figure 36 Trailing Cable HP DesignJets 1050C and 1055CM Printers Service Manual 8 39 Removal and Installation NOTE WARNING WARNING For the following steps refer to Figure 37 6 Remove the T 15 screw item 1 from the trailing cable holder item 2 and remove 7 Remove two T 10 screws item 3 from the trailing cable clamp item 4 Remove the trailing cable clamp item 4 Be very careful when disconnecting the Trailing Cable from the Electronics Module Incorrect handling will damage the Trailing Cable and then it will need replacing 8 Carefully disconnect the trailing cable from the electronics module and pull the trailing cable away from the printer A l DAX itz Si XG A NS N SAK Installation of the
35. TURNED OFF AUTOMATIC PRINTHEAD CLEANING PROCEDURES WILL NOT WORK PROPERLY SHORTENING PRINTHEAD LIFE ALSO BY TURNING OFF PRINTHEAD CHECK PRINT QUALITY MAY BE LOWER BECAUSE THE PRINTER WILL NOT USE THE ERROR HIDING CAPABILITIES Turn the Printhead Check ON or OFF as follows In the Service Utilities submenu scroll to 7 Printhead Check and press Enter E Service Utilities 4 j Back 4 Printer Model Type 5 Overdrive cleaning oo T 6 EEROM utilities Make Selection 7 Printhead check On a L 8 Mon mode baud sel B Enter Press Enter 2 When the following message appears on the front panel you must select whether you would like to turn the Printhead Check ON or OFF Press ENTER once you have made your selection and a little symbol will be displayed next to your selection Printhead check Press Back to Exit L Make Selection Press Enter to make selection HP DesignJets 1050C and 1055CM Printers Service Manual 4 41 Service Tests and Utilities 8 Mon Mode Baud Sel This Service Utility allows you to change the Baudrate of the Serial Port NOTE The default Baudrate for serial communication is 14200 Change the Baudrate as follows In the Service Utilities submenu scroll to 8 Mon Mode Baud Sel and press Enter E Service Utilities Back 4 Printer Model Type 5 Overdrive cleaning T a Make Selection Printhead check On 8 Mon
36. Trailing Cable When reconnecting the Trailing Cable to the Electronics Module make sure you connect it correctly as follows Start reconnecting the Trailing Cable from left to right the longest strip will be connected to the Ist clip from the right Make sure you push the Trailing Cable in straight and not bent Once the Trailing Cable is inserted you should hear an audible click 8 40 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 3 When the Trailing Cable is inserted correctly the shaded part as shown below will not be visible 4 Before powering ON the Printer check the continuity using a tester between the two points as shown below m If there is continuity between the two points then the Trailing Cable is installed incorrectly Do NOT power ON the Printer because you will burn an internal Electronics Module fuse Disconnect the Trailing Cable and reconnect again using the above steps m If there is no continuity between the two points then it is possible to power ON the Printer without burning the internal Electronics Module fuse but there is a possibility that you may still get the System Error Code 0B0006 in which case you have to reconnect the Trailing Cable using the above steps Check Continuity between these 2 points be visible when installed correctly fi Do Not install a damaged Trailing Cable C607440 g Make sure you install
37. avoid spreading this ink over the interconnect when replacing the pen and generating ink shorts between interconnect pads Handle and Printable Label The handle is used to remove and install the PHC Also the printer uses the handle top surface to print and scan some patterns in order to recognize if m PHC is present or not m PHC is new or has been used previously In addition there is a built in mark on the handle a vertical hole to calibrate the service station Scan axis if there is a problem and the EEROM is erased HP DesignJets 1050C and 1055CM Printers Service Manual 10 11 Functional Overview Printer Specifications Functional Specifications HP No 80 Supplies Four colors cyan magenta yellow and black Printheads 600 dpi 12 0 kHz Cyan Magenta Yellow 12 0 kHz Black Printhead Cleaners Cyan magenta yellow and black Ink Cartridges Cyan magenta yellow each containing 175cc or 350cc of ink Black contains 350cc of ink Paper sizes Width carriage axis Length paper axis Minimum Maximum Minimum Maximum Roll 610mm 917 mm 600 mm The maximum length depends on the amount of memory the printer has Sheet 210 mm E AO 210 mm 1 6m A A4 A A4 Paper types Plain Paper HP Translucent bond HP Bright White Inkjet paper HP Vellum HP Coated paper HP Heavy coated paper HP High gloss photo paper HP Matte film HP Clear film HP Natural tracing paper
38. carriage motion at 0 2 to 6 0 ips programmable speed The maximum wiping force is 2N Spittoon Spitting is the act of firing all the print head nozzles into a container spittoon Spitting into the spittoon is done routinely to clear the nozzles of viscous plugs and to clear any loose debris from the nozzles PHC Spittoon is designed to hold 50 cc of spat ink which has almost no water content due to evaporation In order to avoid ink spills when replacing PHC color spittoons have foam that will keep the ink escaping due to capillary effect Black ink does not have foam The Black ink is pigmented and it has been proven that pigmented inks build up over any surface when spat including foams creating stalagmites that may hit the Printhead and cause some nozzles out Fortunately black ink dries very fast creating a solid block of ink that will not fall out off the spittoon when tilted For most users the probability of seeing enough liquid ink in the spittoon to create a spills problem is very low To prevent the growth of tall and narrow stalagmites that may reduce spittoon life the Printhead spits in four different locations Scan axis randomly 10 10 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview Snout Wiper Snout wiper is used to clean the ink accumulation that happens on the snout of the pen vertical corner on the interconnect side because of wiping operation This is done to
39. file is received m The model of printer used m The type of driver HP or Non HP HP DesignJets 1050C and 1055CM Printers Service Manual 6 3 Print Quality How to Use the Print Quality Test What is the Print Quality Test The Printer contains an internal Print Quality Test which helps you to diagnose the possible source of any print quality defects The Print Quality Test is divided into three parts a Nozzle print test designed to check if the printhead nozzles print correctly b Color alignment test designed to check any color to color misalignment the printer may have c Overall print quality in BEST mode specifically designed to diagnose banding problems in high density areas Considerations for Printing the Print Quality Test 1 The Print Quality Test prints in A3 and B sizes so you must have media loaded roll or sheet that is this size or larger 2 Use the same type of media that the customer was using when they found the print quality problem 3 Ifthe customer is using non HP media and after the Print Quality Test you still have the same print quality problems change to genuine HP media and repeat the Print Quality Test 4 If you do not see any problems with the Print Quality Test then the problem may not be with the printer itself The problem may be with the RIP or the driver for example However if you do see problems with the Print Quality Test then continue with the following procedures whi
40. formed by mixing the primary colors as shown in the table below Secondary Color Primary Color Components Red R Magenta M and Yellow Y Blue B Magenta M and Cyan C Green G Cyan C and Yellow Y HP DesignJets 1050C and 1055CM Printers Service Manual 6 9 Print Quality Solving the Banding Problem There main causes of banding m Printhead problems see below m Use of Non HP media m Incorrect media type selected in the front panel m Media advance problems Banding Caused by Printhead Problems In this case you will see banding in only a few colors If the test pattern has clear or dark horizontal bands in one or more of the primary color columns then several of the secondary color columns will also have the same type of bands in the same position but perhaps with less intensity In the following example several nozzles in the magenta printhead are not printing There will be clear repetitive bands perhaps white in the magenta column Consequently you will see lower intensity bands in the same print position in the red which is Magenta Yellow and blue which is Magenta Cyan of the secondary color columns w C60742 1 The bands could be caused by the nozzles not printing correctly You can check the health of the nozzles by performing the Nozzle Print Test 6 10 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality NOTE 2 The light or dark
41. left hand edge of the paper is positioned when printing move the Carriage Assembly back and forth along the length of the printer you are listening for a scraping sound if you hear a sound already you may proceed directly with step 9 if not you must lower the Carriage Assembly step 8 and try again until a scraping sound is heard 5 28 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 8 Lower the Carriage Assembly slightly by turning the T9 screw shown below anti clockwise and then check for a scraping sound again as shown previously in step 7 9 On moving the Carriage Assembly along the length of the printer you should now hear a scraping sound this sound indicates that you need to raise the Carriage Assembly if there is no sound repeat step 8 HP DesignJets 1050C and 1055CM Printers Service Manual 5 29 Service Calibrations 10 Raise the Carriage Assembly slightly by turning the T9 screw shown below clockwise gt Paty eS OS NI 11 Check that there is no longer a scraping sound HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 12 When the scraping has been eliminated it is important to leave the Carriage Assembly as close as possible to the Center Platen move the Carriage Assembly back and for
42. ma a Press ENTER to continue B Enter Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 5 21 Service Calibrations NOTE WARNING 2 8 Pen Alignment The purpose of this Service Calibration is to correct the alignment between the Printheads This calibration is necessary in order to prevent color misalignment and print quality defects like banding Perform the Printhead Alignment Calibration whenever m Carriage is disassembled or replaced m Tubes System is disassembled or replaced m Banding is detected in prints Misalignment between colors is detected m Electronics Module is replaced Perform the Pen Alignment Calibration as follows Make sure you load media before performing this calibration Do NOT use Clear Film Vellum or Natural Tracing Paper In the Service Calibrations submenu scroll to 8 Pen Alignment and press Enter Top B Back mt B Enter Service Calibrations 4 Roller mark position 5 Pen to Paper Sp 6 Color to Color cal I Make Selection 7 Calibrations backup 8 Pen Alignment Press Enter The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Calibration or select CANCEL if you want to cancel the it Press Enter once the selection has been made 8 Pen Alignment Accept Make Selection Press Enter 5 22 HP DesignJets 1050C a
43. main actions for all 4 status messages is as follows 1 Reseat the Ink Cartridge If reseating does not resolve the status message replace the Ink Cartridge If the Status messages continue to appear even after replacing the Ink Cartridge replace the complete Tubes System Page 8 53 3 12 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting OK Ready Replace Printhead Status Messages While Printing Detailed below are the printhead status messages that may be displayed while printing The printhead is operating correctly and will provide an acceptable level of print quality To find more information on the printheads refer to page 3 9 Obtaining Printhead Information The front panel displays Ready and the printhead status is REPLACE The printer is giving an early warning that there may be a degradation of print quality The Printer has detected more than 4 black nozzles or 7 color nozzles out in 5 out of every 8 servicing procedures A new printhead should be bought Depending on the print mode you are using best normal or draft you may still be able to print with an acceptable print quality there may be however a slight loss in speed Refer to the table below for more details Ready Replace Replace OK OK 0 The printer can still operate with a printhead that needs replacing The front panel will display Printing Printheads Limiting perform
44. media m The use of non HP media can easily be the cause of media jams and head crashes especially head crashes because HP media is specially formulated to avoid cockle one of the primary causes of head crashes If the media is not HP approved advise the customer to use HP media and check to see if the problem is now solved The Carriage is at the incorrect height in relation to the Center Platen Adjust the carriage to the correct height Page 5 24 and try to load the media again Check that the Vacuum Fan works correctly Refer to Page 1 9 Problems with the Vacuum Fan Troubleshooting Shutdowns If a shutdown occurs you will get the message Switch Power Off followed by m Check Printhead Cleaner Path m Check Paper Path m Check Printhead Path followed by 1 2 or 3 A shutdown in each path will require different steps to resolve the HP DesignJets 1050C and 1055CM Printers Service Manual 1 7 Troubleshooting WARNING problem as explained as follows In each case make sure that you power OFF the printer before attempting any procedures to resolve the problem Printhead Cleaner Path Open the right door of the printer and check for any visible obstacles restricting the movement of the Service Station Manually move the Service Station checking for smooth and free movement Paper Path Open the Window and check for any visible obstacles restricting the movement of the Drive Roller If there is
45. ml Ink Cartridge m Approx 63 8 ml remaining in a 350 ml Ink Cartridge To check how much ink is remaining refer to page 3 8 Obtaining Ink Cartridge Information When the Very Low message is displayed overnight printing should not be attempted Changing the Ink Cartridge is strongly recommended to prevent the printer from stopping halfway through a print The amount of ink remaining in the Ink Cartridge will be approx 25 ml To check how much ink is remaining refer to page 3 8 Obtaining Ink Cartridge Information The printer will stop and will not be able to continue printing until a new ink cartridge has been installed If this occurs halfway through printing an image you should check the quality of this image as stopping mid plot can affect the print HP DesignJets 1050C and 1055CM Printers Service Manual 3 11 HP No 80 Ink Supplies Troubleshooting Faulty Reseat Wrong Model Unknown NOTE Ink Cartridge Status While Replacing The printer can report the following status messages while the Ink Cartridge is being replaced The ink cartridge is faulty and must be replaced before you can continue printing The ink cartridge is having continuity problems Try reseating the Ink Cartridge The ink cartridge is not recognized by the printer and needs to be replaced before the printer can continue The ink cartridge installed is not approved and must be replaced by a genuine HP No 80 Ink Cartridge The
46. performance during all the product life Level of Printer Usage Normal printer use means 7 000 000 Carriage Cycles Under normal usage conditions it will be approximately 5 years before the printer needs maintenance If the printer is used more than the normal usage conditions then it will need maintenance service much more frequently One of the EEROM counters is assigned to counting the number of carriage cycles When the printer exceeds this amount the front HP DesignJets 1050C and 1055CM Printers Service Manual 9 3 Preventive Maintenance NOTE panel displays the following message Maintenance Advised The Service Configuration Print also conveys the usage information and it is accessible by the user Once the maintenance advised message is displayed the preventive maintenance kit must be used to replace the most worn parts of the printer Use the Removal and Installation Chapter of this Service Manual as a guide to replace the necessary parts Preventive Maintenance Kit Part Number C6072 60143 Scan axis Maintenance In addition to the wearing of the Scan axis motor the friction in this area can increase due to the accumulation of ink particles and dust from the media or the atmosphere in the vicinity of the slider rods Scan axis maintenance requires the cleaning of the slider rods properly and a lubricant to apply onto the rods The most important parts to keep clean are the upper and internal sides o
47. prints done on HP High Gloss Media Color differences can be seen between the covered and uncovered part of a print done on HP High Gloss Media This is because the part of the print exposed to the air is always lighter than the covered one The ink on the covered part of the print cannot evaporate therefore the ink continues to diffuse creating larger ink dots To solve the problem try the following m Allow the print to absolute drying completion before stacking Depending on the ink percentage this can take from 10 minutes up to 3 hours E Creating dryer environmental conditions helps reduce the problem To find the environmental conditions print the Service Configuration Print Printer Setup Menu Utilities Test prints Service config HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting HP GL 2 color differences in different HP DesignJet Printers Color differences between one image printed on the HP DesignJet 1000 Series and the rest of the DesignJet platforms are due to the different chemistry of the 1000 series inks compared with the rest of the inks for other printers This color variability among different HP DesignJet Series Printers has been always present To solve the problem try the following m Perform the color calibration from the driver at the time of printing However that calibration is not very accurate but it may help in the most severe cases m Some applications have color
48. the Color to Color Calibration whenever m Carriage is disassembled or replaced m Drive Roller is disassembled or replaced Em Problems with color misalignment m Paper Axis is disassembled or replaced m Platen Assembly is disassembled or replaced m Service Station is disassembled or replaced Perform the Color to Color Calibration as follows NOTE Make sure that you load E A0 size HP High Gloss Photo Paper or HP Coated media before performing this calibration Do NOT use any other type of media apart from HP Coated or HP High Gloss Photo Paper 1 In the Service Calibrations submenu scroll to 6 Color to Color cal and press Enter EE Service Calibrations Back 4 Roller mark pos mt Make Selection B Enter Press Enter 2 The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Calibration or select CANCEL if you want to cancel the it Press Enter once the selection has been made i 6 Color to Color cal Back Make Selecti ce Make Selection m B Enter Press Enter 5 16 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations NOTE NOTE If you selected to continue then the following message appears on the front panel if media is not loaded Make sure that you load E A0 size HP High Gloss Photo Paper or HP Coated media Do NOT use any other type of media apart from HP Coated or HP High Gloss Pho
49. the FCC Rules 10 18 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview CAUTION Pursuant to Part 15 21 of the FCC Rules any changes or modifications to this equipment not expressly approved by the Hewlett Packard Company may cause harmful interference and void the FCC authorization to operate this equipment NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interferences by one or more of the following measures a Reorient the receiving antenna b Increase the separation between the equipment and the receiver c Connect the equipment into an outlet on a circuit different from that to which the receiver is connected d Consult the dealer or an experienced radio TV technician for help The user may find useful the following bo
50. the part number the manufacturing date or the number of times a certain Printhead has been inserted in the carriage This information is useful for troubleshooting Printhead problems and even knowing if the Printheads have been used with Non HP Cartridges Cartridge Info In this area you can find all the information regarding the Cartridges for example the part number the manufacturing date or the ink level This area also shows you if the customer is using Non HP Cartridges m Operating Conditions In this area you can find the level of humidity and the temperature that the Printer is working in Calibrations In this area you can find information on certain calibrations that have been performed on the Printer It will also tell you if a required calibration was performed or not m Maintenance In this area you can find information relating to maintenance for example the number times the Printer has been powered ON the number of Carriage cycles or the last System Error Code that was triggered ILO Configuration In this area you can find information on the configuration of the JetDirect Card 1 20 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting Sample of the Service Configuration Print Service print HP DesignJet 1065CM ARTER oe figuration Same ppi i h Pei ve hraa amai EET Patali ii iaae Y w Wiary iD mi Ti Hb imame reima PETATA 10 oemi HET bE H ie EP amphi Printhead into C
51. the tube carrier This joint prevents the ink from going to the carriage As one end of the tube carriage is plugged the ink is forced to go to the other end which is fixed to the Printer At that point below the end of the tube carrier there is an ink collector that retains the ink that drops from the tube carrier by gravity 10 8 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview At the ink collector there are two metallic pins between which the resistance is checked When there is no leakage there will be air present and the resistance measured will be high In case of leakage the collector will contain ink and there will be a potential short circuit between both electrodes through the ink and the ink leak will detected The LDS measures the resistance in the collector if this resistance is below the threshold value then the system will assume there is ink in the collector and the Printer will be stopped Service Station The Service Station consists of a linear motion mechanism with a chassis containing one PrintHead Cleaner PHC for each printhead Each PHC consists of one spittoon and reservoir sled type cap nozzle wiper and pen snout wiper Attached to the Service Station chassis one optical drop detector provides nozzle check functionality Wipers are located symmetrically on the PHC This together with the Scan axis Printhead to Printhead distance 32 mm enables separate color black
52. wipe A positive pressure priming system is implemented that injects air into the printhead regulator bagafram to induce a controlled drooling Airflow channels are integrated into the latching system springbeam which deliver air to the bagafram ports The priming pump is integrated into an articulating lever mounted on the right side of the service station The priming process occurs with each printhead over its respective spittoon to handle waste ink and facilitate post priming servicing routines Print Head Cleaner PHC The PHC case is the main structural part of the replacement module It is the part that the customer handles and contains the other sub components m Wiper E Spittoon m Cleaning fluid m Cap sled assembly HP DesignJets 1050C and 1055CM Printers Service Manual 10 9 Functional Overview Cap The purpose of the caps is to prevent the nozzles from drying out while the printer is idle The caps seal off the printhead forming a closed high humidity chamber with small volume that is vented to ambient through a long and narrow passage The caps self align to the printheads by referencing features on each printhead Wiper The function of wiping is to remove ink residue and external debris from the printhead so that good drop ejection and nozzle performance is maintained throughout the life of the printhead Linear wiper motion will occur in the direction of the nozzle rows orthogonal to direction of
53. 050C and 1055CM Printers Service Manual 8 43 Removal and Installation Carriage Assembly and Belt Refer to Figure 41 to Figure 51 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Top Cover see page 8 31 2 Right Hand Cover see page 8 4 3 Left Hand Cover see page 8 13 2 Move the carriage to a position where you can access the printhead tube connector refer to Figure 41 Printhead tube connector Figure 41 Carriage Assembly and Belt 8 44 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE For steps 3 and 4 refer to Figure 42 3 Loosen the retaining screw T 9 at the back of the printhead tube connector 4 Remove the printhead tube connector refer to Figure 42 View from the rear a Push in here D Pull here C Loosen this screw Printhead tube connector Figure 42 Carriage Assembly and Belt 5 Move the Printhead tube connector to a safe position HP DesignJets 1050C and 1055CM Printers Service Manual 8 45 Removal and Installation NOTE For steps 6 to 8 refer to Figure 43 6 Unclip and remove the trailing cable restraining clip item 2 from the Carriage Assembly item 1 7 Carefully disconnect the trailing cable item 3 from connector
54. 0C and 1055CM Printers Service Manual 6 17 Print Quality 5 Go to the printer submenu and press Enter 6 7 Print Quality Full menu mode only 8 ea Re ft EHEHE UTILITIES Recover Printheads Full menu only Printer subment Go to Utilities Test Prints Print Quality and press Enter The printer will print a diagnostic test print This will help you find the source of the banding problem Please wait as the process of printing the Print Quality Test print takes a few minutes Look in the top section of your Print Quality Test Check to see if there are any of the following examples of defects in the print Ae lines Misdirected lines A 2 Fe Very obvious unequal spacing C607482 Missing lines If there are any of the above defects visible in the test print continue with step 9a If there are no defects in the top part of the print test go to directly to step 10 a Goto the printer submenu and press Enter Printer submenu b Go to the Utilities Recover Printheads and press Enter c Select the printhead color that displayed the defects in the Print Quality Test If you are not sure which printhead color is giving you the problem select all of the printheads
55. 94 EN 61000 3 3 1995 FCC Part 15 Class B DOC B VCCI B RRL A BCIQ A AS NZS 3548 GB9254 1988 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carries the CE marking accordingly 1 Product exhibits class A operation when connected to LAN cables using print server accessories 2 The product was tested in a typical system with a Hewlett Packard Personal Computer and second peripheral An Apple Macintosh was used for Local Talk Sant Cugat del Valles Barcelona Singapore September 30th 1998 September 30th 1998 Jordi Balderas i alli 5 Kum Yew Chan i Quality Engineering Manager Quality Manager European Contact Your local Hewlett Packard Sales and Service Office or Hewlett Packard GmbH Department Hy inc Herrenberger Strasse 130 D 71034 Boeblingen Germany FAX 49 7031 143143 10 22 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview www designjet online hp com Direct access to HP and the information you want when you need it Register now HP DesignJet Online is a free web based user club exclusive to HP DesignJet users Having registered the user has unrestricted access to a range of useful services the emphasis being on useful as this is definitely not a sales oriented site Communication from HP to users includes E a quarterly newsletter focussing on
56. 9Cxxx appears after initialization then replace the Electronics Module gt Page 8 25 Once the Error Code has been solved print an Internal Demo Print to make sure that the Hard Disk Drive is functioning correctly If the Error Code reappears then use the above information to troubleshoot the problem 2 12 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action WARNING System Error Codes 0A0000 The Air Pressure is below the minimum requirement Try the following m Check all the cables of the APS and make sure they are correctly connected and are NOT damaged m Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged m Check that the Air Tube from the APS is correctly connected to the Tubes System m Faulty APS Sensor APS Valve or APS Pump Replace the complete APS gt Page 8 20 E Replace ONE Ink Cartridge at a time checking if the error code disappears Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 0A0010 Problem in Pressurizing the Air System Try the following E Replace ONE Ink Cartridge at a time checking if the error code disappears m Check all th
57. A YELLOW fm BLACK 3 Once inside the Printer Setup Options menu use the Arrow keys to scroll to the Utilities menu display and press the Enter key EE Ea Back Printer setup options Pen settings Device setup Utilities m Demos Image quality Enter 4 Once inside the Utilities menu use the Arrow keys to scroll to the Test Prints menu display and press the Enter key Top B Back it a B Enter Press Enter Utilities Display Contrast Contrast Recover Printheads Calibrations Test Prints Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 1 19 Troubleshooting 5 Use the Arrow keys to scroll to Service Config and press the Enter key to print the Service Configuration Print B Back mt a BR enter Test Prints HP GL 2 config Service config Usage report Print Quality Press Enter How to Use the Service Configuration Print The Service Configuration Print is divided into 7 different areas where you can find information to troubleshoot the Printer General Configuration In this area you can find information regarding the general configuration of the Printer for example the firmware version amount of memory installed or the capacity of the Hard Disk Drive m Printhead Info In this area you can find all the information regarding the Printheads for example
58. B000D 24 V source test failure Replace the Electronics Module Page 8 25 2 22 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting What are HP No 80 Supplies 3 2 Ink Cartridges 3 2 Printheads and Printhead Cleaners 3 2 Identifying the Components 3 3 General Information About HP No 80 Supplies 3 4 Some General Precautions When Handling HP No 80 Supplies 3 5 Priming the Ink System 3 6 When Should You Replace the HP No 80 Supplies 3 6 The Front Panel Display 3 7 Obtaining Ink Cartridge Information 3 8 Obtaining Printhead Information 3 9 Ink Cartridge Status Messages 3 11 Ink Cartridge Status While Printing 3 11 Ink Cartridge Status While Replacing 3 12 Printhead Status Messages While Printing 3 13 Printhead Status Messages While Replacing 3 15 Summary of Solving HP No 80 Supplies Problems 3 17 Carriage Interconnect Wiper 3 18 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting What are HP No 80 Supplies For each of the four ink colors used in the printer there are three separate components The printhead and the printhead cleaner are supplied together and the ink cartridge is supplied separately All of these components are called the HP No 80 Supplies They are coded with an HP No 80 selection number to identify the correct replacement supplies mo imom ee a Unen Printhead and Printhead Cleaner Ink Cart
59. DesignJet Printers 1 11 Scratches on prints done on NTP Vellum and HP High Gloss media 1 11 Banding at variable extreme environmental conditions 1 12 Banding due to Ink Cartridge replacement while printing 1 12 Long term bleed and hue shift on HP High Gloss media 1 12 Lower image gloss directly after printing on HP High Gloss Photo Paper 1 13 34 Rice Paper not supported 1 13 Cut Sheet rice paper loading failure 1 13 Worm marks on HP Coated media with light area fills 1 13 Solving Media Handling Problems 1 14 How to Navigate through the Front Panel Menu 1 15 Service Configuration Print 1 19 HP DesignJets 1050C and 1055CM Printers Service Manual 3 Table of Contents System Error Codes 2 1 Introduction 2 2 Continuable and Non Continuable Error Codes 2 2 System Error Codes During Initialization 2 18 HP No 80 Ink Supplies Troubleshooting 3 1 What are HP No 80 Supplies 3 2 Ink Cartridges 3 2 Printheads and Printhead Cleaners 3 2 Identifying the Components 3 3 General Information About HP No 80 Supplies 3 4 Some General Precautions When Handling HP No 80 Supplies 3 5 Priming the Ink System 3 6 When Should You Replace the HP No 80 Supplies 3 6 The Front Panel Display 3 7 Obtaining Ink Cartridge Information 3 8 Obtaining Printhead Information 3 9 Ink Cartridge Status Messages 3 11 Ink Cartridge Status While Printing 3 11 Ink Cartridge Status While Replacing 3 12 Printhead Status Messages While Printing 3 13 Printhead S
60. EORHET Def a lea SPELETILe ETATE fee Braet Diksi pi SUGALLE ata tie ec ERe Erato Ob ae ah Taer i RENEE Pleat haj misin i ior o foie T hapa Fenari mi marw Cea Cep w Heii miij pray cw ag f mig lamkaratara iig Ti A m amima nosso mman En laa ro TAi mi HP DesignJets 1050C and 1055CM Printers Service Manual 1 21 Troubleshooting 1 22 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Codes System Error Codes 2 2 0000D8 XXXXXXXX Non Continuable 2 3 01002D Non Continuable 2 3 010020 Non Continuable 2 3 010021 Non Continuable 2 4 010023 Non Continuable 2 4 010040 2 5 010041 2 5 010042 2 6 010050 XXXXXXXX Non Continuable 2 6 01009X Continuable 2 7 02xxxx Non Continuable 2 7 04Cxxx 2 8 048xxx 2 8 060301 2 9 060305 O0000000X 2 9 060309 2 10 06030A Continuable 2 10 06030B 2 11 070100 XXXXXXXX Non Continuable 2 11 080001 Non Continuable 2 12 09xxxx Non Continuable 2 12 0A0000 2 13 0A0010 2 13 0A0020 2 14 0A0030 2 14 0A0040 2 14 0A0050 Non Continuable 2 15 0A0060 Non Continuable 2 15 0A0070 Continuable 2 16 0C0030 2 16 0C0032 Continuable 2 17 OC1000 2 17 0C1001 2 17 System Error Codes During Initialization 2 18 HP DesignJets 1050C and 1055CM Printers Service Manual 2 1 System Error Codes System Error Codes NOTE NOTE Introduction System error codes are hexa decimal based numbers generally caused by internal system
61. Grip HP DesignJets 1050C and 1055CM Printers Service Manual 8 55 Removal and Installation 9 Twist the two latches item 1 at the rear of the ink cartridge tube connector item 2 to the outwards This will release the complete assembly refer to Figure 58 m Figure 58 Latches 10 Slide the ink cartridge tube connector assembly item 1 towards you refer to Figure 59 A XE A TAN X PNAN ATZ M4 NJ AV N 2082c Figure 59 Ink Cartridge Tube Connector pulled back HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 11 Disconnect the ink cartridge tube connector cable item 1 refer to Figure 60 l Figure 60 Ink Cartridge Tube Connector Cable are 12 Disconnect the air tube refer to Figure 61 2 Release the 1 Press down here tube here 7 T Gua Gua Perr a Figure 61 Air Tube
62. Hand Cover 8 4 Front Panel Assembly 8 6 Right Hand Trim and Window Switch 8 7 Service Station Assembly 8 8 Drop Detector Assembly 8 10 Vacuum Fan 8 11 Paper axis Motor Assembly 8 12 Left Hand Cover 8 13 Left Hand Trim Assembly 8 18 Ink Supply Station Assembly ISS 8 19 Air Pressurization System APS 8 20 Clutch Assembly and left hand miscellaneous parts 8 21 Tail Deflectors and Rear Platen 8 23 Left and Right Rear Covers 8 24 HP DesignJets 1050C and 1055CM Printers Service Manual Table of Contents Electronics Module 8 25 Media Sensor 8 29 Window 8 30 Top Cover 8 31 Back Cover 8 32 Scan axis Motor Assembly 8 33 Encoder Strip 8 34 Tensioner 8 37 Trailing Cable 8 39 Cutter Assembly 8 42 Carriage Assembly and Belt 8 44 Tubes System Assembly 8 53 Ink Leak Detector Assembly 8 60 Front Platen Assembly 8 62 Platen Assembly 8 63 Paper Entry Assembly 8 64 Roller Guide 8 66 Media Holder Strip 8 69 Drive Roller 8 70 Center Guide 8 71 Pinch Wheel Assembly and Cam 8 73 Preventive Maintenance 9 1 Moisture on the Printer 9 2 Noisy Carriage Bushing 9 2 Belt Swelling 9 2 Cleaning the Printer 9 2 General Cleaning 9 2 Cleaning the Overdrive 9 3 Scheduled Maintenance 9 3 Level of Printer Usage 9 3 Scan axis Maintenance 9 4 HP DesignJets 1050C and 1055CM Printers Service Manual Table of Contents Functional Overview 10 1 Introduction 10 2 HP DesignJet 1050C Printer 10 2 HP DesignJet 1055CM prin
63. Hard Disk C2985B Memory All memory expansion modules 16 MB C6251A Modules are 32 MB C6252A 16 32 or 64 MB DIMM 168pinx 64 MB C6258A 64 EDO 50 nanoseconds 3 3V JetDirect EIO Network Cards 10Base T J3110A 10 Base2 10 T LocalTalk J3111A Token Ring J3112A 10 100Base TX J3113A 7 34 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Item HP Part Number Drivers Latest versions of the following were shipped with the 1055CM HP DesignJet PostScript Driver for Power Macintosh and Macintosh HP DesignJet PostScript Driver for Microsoft Windows HP GL 2 Windows Driver HP DesignJet HP GL 2 and HP RTL AutoCAD driver NOTE For details of the latest version available please visit the Hewlett Packard web site at http www hp com go designjet or consult your HP dealer or sales representative Paper Supplies This item is updated regularly Please visit the Hewlett Packard web site at http www hp com go designjet or consult your HP dealer or sales representative Color 175ml 350ml Ink Cartridges Black N A C4871A Cyan C4872A C4846A Yellow C4873A C4848A Magenta C4874A C4847A Value Pack Printhead Black N A C4890A Printhead Cleaner 350ml Ink Cyan N A C4891A Cartridge Yellow N A C4893A Magenta N A C4892A Item Color Printheads and Printhead Cleaners Black C4820A Cyan C4821A Yellow C4822A Magenta C4823A Spindle E Assembly C6078A HP De
64. LA eackara HP DesignJet 1050C 1055CM lt AN y I A A Service Manual For HP Internal Use Only Copyright Hewlett Packard Company 1999 This document contains proprietary information that is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company First Edition March 1999 Technical Marketing Barcelona Division Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Hewlett Packard Espanola S A Avda Graells 501 08190 Sant Cugat del Valles Spain WARNING The procedures described in this manual are to be performed by HP qualified service personnel only Electrical Shock Hazard Serious shock hazard leading to death or injury may result if you do not take the following precautions Ensure that the ac power outlet mains has a protective earth ground terminal Disconnect the Printer from the power source prior to perform
65. M printers models C6074 and C6075 are approved under Approval Number NS G 1234 5 100003 for indirect connection to public telecommunication systems within the United Kingdom Hewlett Packard Company Manager of Corporate Product regulations 3000 Hanover Street Palo Alto CA 94304 415 857 1501 HP DesignJets 1050C and 1055CM Printers Service Manual 10 21 Functional Overview Declaration of Conformity DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Hewlett Packard EspafiolaS A Hewlett Packard Singapore PTE Ltd Manufacturer s Address Barcelona Division Asia Hardcopy Manufacturing Operation Avenida Graells 501 20 Gul Way 08190 Sant Cugat del Valles Singapore 629196 Barcelona Spain Declares that the product Product Name HP DesignJet 1050C and 1055CM Inkjet Printers Model Number s HP C6074X HP C6075X Product Accessory All Conforms to the following Product Specification Safety TEC 950 1991 A1 A2 A3 A4 EN 60950 1992 A1 A2 A3 A4 CSA C22 2 No 950 1995 UL 1950 1995 NOM 019 SCFI 1994 EMKO TSE 74 DK 207 94 GB 4943 1995 TEC 825 1 1993 EN 60825 1 1994 Class 1 for LED CISPR 22 1993 EN 55022 1994 Class B EN 50082 1 1992 IEC 801 2 199 1 prEN 55024 2 1992 4KV CD 8KV AD IEC 801 3 1984 prEN 55024 3 1991 3V m TEC 801 4 1988 prEN 55024 4 1993 IKV Power Lines 0 5KV Signal Lines IEC 1000 3 2 1995 EN 61000 3 2 1995 IEC 1000 3 3 19
66. Maintenance Moisture on the Printer 9 2 Noisy Carriage Bushing 9 2 Belt Swelling 9 2 Cleaning the Printer 9 2 General Cleaning 9 2 Cleaning the Overdrive 9 3 Scheduled Maintenance 9 3 Level of Printer Usage 9 3 Scan axis Maintenance 9 4 HP DesignJets 1050C and 1055CM Printers Service Manual 9 1 Preventive Maintenance Preventive Maintenance Moisture on the Printer Users should use the Printer in an environment between 20 and 80 relative humidity To recover from moisture condensation turn the Printer Off and using the main roller as a reference wait until the Printer is completely dry before using it again Noisy Carriage Bushing To prevent noisy movement of the carriage remove aluminum or dust particles from the bushing at the back of the carriage and from the slider path along which the bushing moves Belt Swelling To prevent new belts from swelling incorrectly keep them in their bags with dissicant until you need to install them Cleaning the Printer To maintain the Printer in good operating condition keep it free of dust accumulation ink and other contamination Cleaning intervals are determined by the Printer environment and by the types of Printer supplies used General Cleaning Proper general cleaning should include the following 1 Blow away dust accumulation with compressed air if available 2 Clean the outer surface of the Printer with a damp sponge or cloth Use a mild soap and water
67. O NOT REPLACE THE DROP DETECTOR NOTE The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print Perform the Drop Detector test as follows 1 Inthe Service Tests submenu scroll to 7 Drop Detector and press Enter B r B Back mt ee BR enter Service Tests 3 Hard Disk Drive 4 stem L Make Selection Press Enter 2 The test will start to initialize and the following message will appear on the front panel DROP DETECTOR TEST Initializing in Tclware 90s Close any open door 4 22 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 3 After initialization the test will start and the following message will appear on the front panel DROP DETECTOR TEST Running Drop Detector Test WARNING In the following step make sure you do not drop the piece of paper inside the Drop Detector 4 When the following message appears open the Window and insert a thin piece of paper inside the Drop Detector in order to block it Press any Front Panel key once the Drop Detector is blocked Sensor Paper Block the Drop Detector and press a FP key when it is blocked Drop Detector 5 When the following message appears remove the piece of paper fro
68. ON OPEN THE WINDOW OF THE PRINTER AND ACTIVATE THE WINDOW SENSOR USING A PIECE OF PAPER BEFORE PERFORMING THIS SERVICE UTILITY Perform the Overdrive Cleaning utility as follows In the Service Utilities submenu scroll to 5 Overdrive Cleaning and press Enter EE Service Utilities E P 1 Tubes Purge 7 bi Make Selection 5 Overdrive Cleaning L B Enter Press Enter 2 When the following message appears on the front panel use the Up and Down arrow keys to select either to increase or decrease the speed Press ENTER when the selection has been made and the speed will either increase or decrease depending on your selection EE 5 Overdrive Cleaning Es Back mt Make Selection ee B Enter Press Enter 3 Refer to the Cleaning Instructions on Page 9 3 4 To stop the Overdrive select STOP and press ENTER HP DesignJets 1050C and 1055CM Printers Service Manual 4 37 Service Tests and Utilities 6 EEROM Utilities The purpose of this Service Utility is to either clear the EEROM in the Electronics Module or to test it Perform the Clear Test EEROM utility as follows 1 In the Service Utilities submenu scroll to 6 EEROM Utilities and press Enter Sy Top B Back mt ee B Enter Service Utilities 4 Printer Model Type 5 Overdrive cleaning 6 EEROM utilities 7 Printhead check On 8 Mon mode baud sel I Make Selection Press Enter 2 When the fol
69. OTE Lower image gloss directly after printing on HP High Gloss Photo Paper Lower gloss appearance of the print when the media is drying which gradually disappears to get the final gloss level between 10 and 60 minutes depending on the ink density Try the following m Wait at least 60 minutes to achieve the high gloss appearance 34 Rice Paper not supported Roll length is 34 Non standard and the pinch wheels can t control edge of media causing ink smears and Printhead crashes in middle of prints with or without area fills PRINTER LIMITATION NO SOLUTION AVAILABLE Cut Sheet rice paper loading failure Thin rice paper is sucked into the Center Platen grooves and Linear Blade Ridge This implies that the friction between the Center Platen and the rice paper becomes higher than between the Overdrive wheels and the paper This effect make it almost impossible to load the rice paper correctly because the Vacuum is too high PRINTER LIMITATION NO SOLUTION AVAILABLE Worm marks on HP Coated media with light area fills Light bands S shaped in Paper axis direction where light area fills are printed causing unacceptable Image Quality defect m Print the Service Configuration Print Page 7 19 and check if the level of Humidity is very low below 30 Increasing humidity may help in reducing the severity of the problem The media is causing the problem and NOT the Printer Do not attempt to try and replace Pr
70. Panel cable is not damaged ALL the Front Panel LEDs are Lit but Nothing Else Happens The Firmware DIMM is NOT correctly installed 1 Power OFF the Printer from the back and disconnect the power cord Reseat the Firmware DIMM the first slot from the right making sure that it is installed correctly One of the Print Quality LEDs on the Front Panel is Lit and nothing else and the SELF TEST Message Remains on the Front Panel One of the DRAM DIMMs is NOT correctly installed or Faulty 1 Power OFF the Printer from the back and disconnect the power cord Reseat both Firmware DIMMs the first two slots from the left making sure that they are installed correctly If reseating the DRAM DIMMs does not solve the problem replace them instead HP DesignJets 1050C and 1055CM Printers Service Manual 1 5 Troubleshooting The Printer Continuously Rejects Printheads Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper Refer to Chapter 3 and try again If ALL the Printheads are rejected the status message on the Front Panel does NOT show OK for all the Printheads then perform the Electronic Systems Test Page 4 5 Cover Sensors are not Working 1 Check if the faulty sensor is installed correctly 2 Check if the cable for the faulty sensor is connected correctly 3 Replace the faulty Sensor The Line Sensor has Problems Detecting Media Check the t
71. Try the following m The leak detector could have been triggered due to condensation in the Printer Power OFF the Printer and allow the Printer to dry for 15 minutes Power ON the Printer and check if the error code has disappeared m If the error code reappears replace the complete Tubes System SRK gt Page 8 53 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 15 System Error Codes System Error Problem Description Corrective Action NOTE System Error Problem Description Corrective Action WARNING 0A0070 Continuable The Backup EEROM contents stored in the Tubes System are not consistent with the ones required by the firmware Try the following m Perform the Calibrations Backup gt Page 5 19 Make sure that you select Tubes Replaced when performing the Calibrations Backup 0C0030 Bad Drop Detector Try the following m Check that the Drop Detector Cable is NOT broken or damaged m Check that the Drop Detector cable is correctly connected to the Service Station Cable m Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor m Replace the Drop Detector Assembly gt Page 8 10 m If the Error Code continues replace the Electron
72. XXXXX XXXXXXXX p Trailing Cable Test Yuyu R W Carriage ADC Pen Continuity Digital Cyan Magenta Yellow Black PEN ACUMEN Pen Digital functionality Pen Analog Continuity VPP regulation Cyan Magenta Yellow Black Line Sensor zero test 4 6 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING 3 If the test passes then the following message will appear on the front panel ELECTRONIC SYSTEMS Tests passed PS 6 0A77R DIMM1 EDO 32MB 60ns DIMM2 EDO 16 MB 60ns IF THIS TEST PASSES DO NOT REPLACE THE ELECTRONICS MODULE TRAILING CABLE OR THE CARRIAGE ASSEMBLY If the test fails Electronics Failure If there is a problem with the components within the Electronics module then the following message will appear on the front panel ELECTRONIC SYSTEMS Possible Failure on 1 Electronics Module Code 0OXXXX 0000XX In this case Replace the Electronics Module gt Page 8 25 DRAM Test Failure If there is a problem with the DRAM then the following message will appear on the front panel ELECTRONIC SYSTEMS Possible Failure on 1 DRAM DIMMs 2 Electronics Module Code 0OXXXX 0000XX In this case try one of the following Switch the Power OFF from the back of the Printer and disconnect the Power cord Reseat the DRAM DIMMs Memory Modules reconnect the power cord and power On the Printer Perform the Electronic Systems T
73. a cable tie Disconnect the front panel cable from position P16 FRONT PANEL on the electronics module Disconnect the aerosol fan cable from position P7 AEROSOL FAN on the electronics module Remove two T 15 screws item 1 from the right hand trim item 2 Be careful not to drop the cover item 3 once the securing fasteners have been removed Support the cover throughout the next step Remove two T 15 screws item 4 from the rear of the right hand cover which are securing the cover to the right hand side chassis Remove the right hand cover item 3 by making sure you a carefully pull the front panel cable and the aerosol fan cable from a hole in the right hand side chassis b disconnect the service station door sensor cable which hangs down from the service station cable 8 4 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation C607407 Figure 1 Right Cover HP DesignJets 1050C and 1055CM Printers Service Manual 8 5 Removal and Installation NOTE NOTE Installation of the Right Hand Cover Ensure the front panel cable and the aerosol fan cables are secured inside the right hand cover with cable clamps and retaining clips At the rear of the right hand side chassis is a hole for the cables to go through If the cables are not through this hole when the cover is in place on the printer the cover cannot be properly ins
74. a wrinkled mass of media inside the paper path lift the Pinch wheels using the Media Load Handles and clear the obstruction If you cannot reach the media remove the Electronics Module Page 8 25 and the Roller Guide Page 8 66 from the Rear of the Printer to gain better access If this shutdown happens at the end of a Roll of Media it could be because the media is stuck firmly to the Roll Lift the Pinch wheels using the Media Load Handles and pull the media clear 3 Replace media spindle if broken Replace the Paper Axis Motor Page 8 2 Printhead Path When a shutdown occurs in the Printhead path you will get the message Switch Power Off Check Printhead Path The will be a number which will give an indication on where the failure occurred PWM Shutdown 1 and Energy Shutdown 3 Clean Slider Rods and Apply Oil along the complete axis of the Slider Rods After applying the Oil perform the Scan Axis Test gt Page 4 17 and check that the values are within the given limits Replace the Scan Axis Motor Page 8 33 Velocity Shutdown 2 Open the Window and check for any visible obstacles restricting the movement of the Carriage Assembly Try and move the Carriage Assembly manually checking for smooth and free movement Check that the Encoder Strip is clean If necessary clean Encoder Strip using a damp cloth 1 8 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting P
75. ad Cleaners Refer to the CAUTION 15 1 2 6 NOTE User s Guide for details You must perform the following Service Calibrations after the installation of the Tubes System m Calibrations Backup Page 5 19 m Pen Alignment gt Page 5 22 HP DesignJets 1050C and 1055CM Printers Service Manual 8 59 Removal and Installation Ink Leak Detector Assembly Refer to Figure 64 to Figure 66 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Window see page 8 30 2 Top Cover see page 8 31 3 Back Cover See Page 8 32 4 Right Rear Cover See Page 8 24 NOTE Working from the rear of the printer 2 Open the door at the back of the left hand cover by removing two T15 screws item 1 refer to Figure 64 Figure 64 Rear Left Hand Cover 3 Disconnect the Leak Detector Cable from position P4 INK LEAK DETECTOR on the Electronics Module 4 Locate the clip that attaches the Leak Detector Cable to the side plate Remove the screw that attaches the clip to the side plate 8 60 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 5 Remove the screw and clip item 2 from the back of the Printer and disconnect the Ink Leak Detector Cable Connector item 1 as shown in Figure 65 The Ink Leak Detector Cable can now be removed completely Figure 65 Leak Detector Cable 6 Unclip the Leak Detector from th
76. ad and replacing the old printhead with a new one Printhead Status Messages While Replacing The following are the printhead status messages that may be displayed while replacing the Printheads The Printer has detected that a Setup Printhead is installed The Printer has detected that a USED Setup Printhead is installed No Printhead has been detected in that Carriage stall If a Printhead is installed in the Carriage stall when this status message is shown 1 Reseat the Printhead making sure it is installed correctly Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 3 Replace the Printhead 4 Perform the Electronic Systems Test gt Page 4 5 If all 4 Printheads are installed but have the Status message Insert it is possible that the Carriage Assembly is faulty HP DesignJets 1050C and 1055CM Printers Service Manual 3 15 HP No 80 Ink Supplies Troubleshooting Reseat NOTE Faulty NOTE Wrong Model CAUTION Unknown The printhead has moved slightly and is not making good electrical contact with the carriage assembly Reseat the printhead into the correct position This situation must be corrected before the printer will operate 1 Reseat the Printhead in the correct position Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 3 Replace the Printhead 4 Perform the Electronic Systems Test Page 4 5
77. agenta printhead info Yellow printhead info Black printhead info 5 The front panel displays information on the selected printhead Cyan printhead info HP No 80 printhead Status OK Part Number C4821 AW Usage time 50h Ink consumed 3ml Mfg month 5 1998 The information supplied is m The make of the printheads HP No 80 are recommended m The current status of the printhead m Re order part number of the printhead m The time that the printhead has been operating in the printer How much ink has been consumed by the printhead Note It is possible for a printhead to consume more than one ink cartridge m The year and the month that the printhead was manufactured 3 10 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting Status Bars Low Very Low Empty Ink Cartridge Status Messages The front panel displays four horizontal bars These bars represent how much ink is remaining in the ink cartridges as ink is used up the bars get shorter in length To see how much ink you have remaining go to the Ink Cartridge Info menu See page 3 8 Obtaining Ink Cartridge Information Ink Cartridge Status While Printing The Low message is an early warning sign and it is advisable that new supplies should be obtained of that particular color The amount of ink remaining in the Ink Cartridge depends on it s capacity E Approx 43 8 ml remaining in a 175
78. aight lines If one or more nozzles are misdirected there will be unequal spaces between the corresponding lines 6 6 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality NOTE Recover Printheads cyan magent yellow black How to fix the Nozzle Defects If your printer has nozzle defects it does not mean that you will not get perfect print quality results The printer has automatic procedures to hide many nozzle defects This type of problem affects mostly Normal and Draft modes Go to the Printer submenu and press Enter Printer submenu Go to the Utilities Recover Printheads 3 Select the printhead color that is responsible for the problem The printer will try to Recover the defective printhead If you are not sure which printhead color is giving you the problem select all of the printheads Please wait as the process of recovery takes a few minutes Reprint the Print Quality Test to check that the defective nozzles have been corrected If the error is still present replace the worst printheads Color Alignment Print Test This part of the Print Quality Test is designed to check the color alignment It produces twelve patterns each with two different primary colors In each pattern you will see a cross surrounded by another color If there is misalignment between the colors there will be inconsistent spacing between the cross and the other color There are two types of m
79. ake sure that the media selection made in the front panel is the same as the media that you have loaded It is possible that the banding was caused because the customer was using non HP media If the customer still wants to use non HP media recalibrate the paper accuracy by performing the accuracy calibration Performing this will overwrite the default setting for only the paper that you have selected NOTE If the customer wants to use HP certified paper at a later stage they can restore the optimal setting to what it was by going to Utilities Calibration Accuracy Restore Factory Perform the printheads alignment procedure Aligning the Printheads The printhead alignment selection causes the printer to align the printheads immediately or if an image is being printed as soon as the current print job is finished The alignment procedure requires a minimum paper size of A2 or C size The printer will automatically perform an alignment when printheads are replaced You can use this feature if the Print Quality Print indicates an alignment error You should not attempt to align the printheads with tracing paper vellum or clear film Service Accuracy Calibration If the banding problem remains after using HP Media and trying the above steps to resolve the problem perform the Service Accuracy Calibration Page 5 6 6 12 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality Troubleshooting Print Quality
80. alled in the Service Station INK STARTUP Open right cover and install printhead cleaners 11 If media is not loaded the following message appears on the front panel and you must load media into the Printer INK STARTUP Load paper for calibration 4 30 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 12 13 WARNING The Printer will start to print the Printhead Alignment Pattern and the following message will be displayed on the front panel INK STARTUP Aligning printheads Approximate time remaining X min xx sec Once the Printhead Alignment is completed the following message will be displayed on the front panel Top B Back it a BR Enter Since you have replaced the Tubes System make sure that you perform the Calibrations Backup Page 5 19 in order to backup the EEROM Data from the Electronics Module Make sure you select Tubes Replaced when performing the Calibrations Backup INK STARTUP Printer startup has finished Press Enter to Continue Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 4 31 Service Tests and Utilities 2 Release Info This Service Utility provides information on the current Firmware version Check the Release Info as follows 1 Inthe Service Utilities submenu scroll to 2 Release Info and press Enter E Service Utilities 1 Tubes Purge fo 2 Rel
81. ance Replace 0 4 OK OK HP DesignJets 1050C and 1055CM Printers Service Manual 3 13 HP No 80 Ink Supplies Troubleshooting Front panel displays Ready Replace Draft Normal Best Print Quality is Affected Print Quality is maintained but the printer changes the Printer will try to printing process to compensate for an ageing compensate for an printhead Subsequently the printer will print slower ageing printhead Speed not affected Speed is affected Speed not affected Replace Printhead Failed NOTE The front panel displays a warning meaning that the printhead has quite a few nozzles operating incorrectly There is a risk that media could be wasted The printer will stop at the beginning of every print job and the front panel will display Warning Printhead quality degrading select YES to replace failing printheads ee YES Replace NO Continue Press the J or T down key to select YES or NO Press the Enter key If you select YES the print job will be cancelled and a replacement will be started If you say NO the printer will continue printing Next time you print the same message will appear until you select YES Replace This message generally indicates that the printhead must be replaced This situation must be corrected before the printer will operate However this problem may be corrected as follows Reseat the printhead Clean the Carriage an
82. anding due to Ink Cartridge replacement while printing A user has removed the Ink Cartridge while the printer was printing which has caused the printer to stop If the user does not replace the Ink Cartridge immediately when the printer starts to print again a band will appear in the position where the printing restarted This is because the wet ink interacts with the dried ink on the media causing the band to appear To solve the problem try the following m Do NOT remove the Ink Cartridge while the Printer is Printing Only replace remove Ink Cartridges in between Prints m If the Ink Cartridge was replaced due to the Empty status on the Front Panel then advise the customer to replace the Ink Cartridge when the Very Low status is showing on the Front Panel Long term bleed and hue shift on HP High Gloss media Under high humidity conditions approx gt 65 the water trapped in the air can easily be absorbed by the highly hydrophilic media coating polymers That allows the dye to migrate through the coating and causes bleeding This problem is especially noticeable with the colors that require Magenta To solve the problem try the following m Reduce the level of humidity lt 65 that the Printer is working in To find the humidity level print the Service Configuration Print Printer Setup Menu Utilities Test prints Service config HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting N
83. areful not to drop the roller guide once the securing fasteners have been removed 7 Remove the three T 15 screws item 1 from the left side of the roller guide assembly and remove C607431 Figure 75 Roller Guide 8 68 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Media Holder Strip Refer to Figure 76 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Electronics Module see page 8 25 NOTE Working from the rear of the printer 2 Remove the three T 15 screws item 1 securing the Media Holder Strip item 2 to the Roller Guide refer to Figure 76 C607445 Figure 76 Media Holder Strip HP DesignJets 1050C and 1055CM Printers Service Manual 8 69 Removal and Installation Drive Roller WARNING NOTE NOTE Refer to the Figure 77 Removal Switch off the printer and remove the power cord Remove the following 1 Clutch Assembly see page 8 21 2 Roller Guide see page 8 66 Working from the rear of the printer Remove the roller item 1 as follows a Pull the left side of the roller towards you and then pull the right side of the roller towards you b Move the complete roller to the left c Remove the right side of the roller first and then the left side C607431la Figure 77 Drive Roller You must perform the following Service Calibrations after the ins
84. arried out using the Carriage Height Tool See Figure 1 below that came with the new Carriage Assembly or Center Platen Assembly Carriage Height Tool Figure 1 5 24 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations NOTE During the Carriage Height Calibration procedure the Carriage Assembly has to be moved along the length of the printer for correct calibration Make sure that the Carriage Assembly is only ever moved by pulling the belt and never by direct contact with the carriage itself See Figure 2 below S a gt gt Za Correct move using the belt Incorrect never move using Carriage Assembly Figure 2 1 Disconnect the Ink Leak Detector Cable Connector from the back of the printer HP DesignJets 1050C and 1055CM Printers Service Manual 5 25 Service Calibrations 2 Remove the EMC Cover on the left hand side of the printing area 5 26 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 4 Insert the Carriage Height Tool into the black cartridge slot Un pA an oe a Ss HP DesignJets 1050C and 1055CM Printers Service Manual 5 27 Service Calibrations 6 Loosen the two T10 screws at the back of the Carriage Assembly NOTE NOTE The screws should not be removed 7 Using the belt and beginning to the left hand side of the starting position where the
85. ase 8 0515 2248 4 Screw 9 C6072 60179 1 Drop Detector Assembly Includes Spittoon Foam 7 12 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams HG AA A SS PNG _ My i Ky YY E G S S ESA AN x NW oe I Hire 3 ane x fl S Doo DENE A Es Figure 8 Right Hand Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 7 13 Parts and Diagrams ISS and APS Assembly C6072 60015 1 Ink Supply Station ISS 2 C6072 60016 1 Air Pressurization System APS C607 1 60168 1 Ink Leak Detector Includes Ink Collector Leak Sense Cable and Leak Sense Cable Cip 7 14 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 9 Ink Supply Station 7 15 HP DesignJets 1050C and 1055CM Printers Parts and Diagrams Clutch Assembly C6072 60151 1 Clutch Assembly 2 0515 2278 2 Screw 7 16 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams N Figure 10 Clutch Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 7 17 Parts and Diagrams Carriage Assembly Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6072 60147 1 Carriage Assembly Inclu
86. can Axis 4 17 Service Utilities EEROM Utilities 4 38 Entering 4 26 Mon Mode Baud Sel 4 42 Overdrive Cleaning 4 37 Printer Model Type 4 35 Printhead Check 4 41 Release Info 4 32 Index 4 HP DesignJets 1050C and 1055CM Printers Service Manual Set Asian PS Fonts 4 33 Tubes Purge 4 28 Set Asian PS Fonts 4 33 Shielded cables 10 18 Smears 6 24 Snout Wiper 10 11 Soft Power Off Switch 10 4 Solving Image Quality Problems 1 3 Sound 10 18 Spittoon 10 10 System Error Codes 2 2 0000D8 2 3 010020 2 3 010021 2 4 010023 2 4 01002D 2 3 010040 2 5 010041 2 5 010042 2 6 010050 2 6 01009X 2 7 02xxxx 2 7 048xxx 2 8 04Cxxx 2 8 060301 2 9 060305 2 9 060309 2 10 06030A 2 10 06030B 2 11 070100 2 11 080001 2 12 O9xxxx 2 12 0A0000 2 13 0A0010 2 13 0A0020 2 14 0A0030 2 14 0A0040 2 14 0A0050 2 15 0A0060 2 15 0A0070 2 16 0B0000 2 18 0B0001 2 18 0B0002 2 18 0B0003 2 19 Index 0B0004 2 19 0B0005 2 19 0B0006 2 20 0B0007 2 20 0B0008 2 20 0B0009 2 21 OBOOOA 2 21 OBOOOB 2 22 OBOOOC 2 22 OBOOOD 2 22 0C0030 2 16 0C0032 2 17 0C1000 2 17 0C1001 2 17 Continuable 2 2 Non Continuable 2 2 T Tail Deflectors 8 23 Tensioner 8 37 Top Cover 8 31 Trailing Cable 8 39 Troubleshooting Shutdowns 1 7 System Error Codes 1 2 Tubes Guide Assemblies 7 32 Tubes Purge 4 28 Tubes System 8 53 10 6 Vv Vacuum Fan 8 11 W Window 7 10 8 30 Window Switch 8 7 Wiper 10 10 Worm marks 1 13 HP DesignJets 1050C and 1055CM Pri
87. ch will help you to diagnose the problem Printing the Print Quality Test 1 Go to the printer submenu and press Enter Printer submenu 6 4 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality a 2 Select Print Quality from the Utilities Test Prints menu then press Enter 11101es r ri to print the test The printer will print out a series of patterns shown below Print Quality FEEFEE FNZ EPE ae HP DesignJets 1050C and 1055CM Printers Service Manual 6 5 Print Quality Nozzle Print Test The nozzle print test is located on the Print Quality Test in the top ial section In this test the 512 nozzles that each printhead uses to print em o with are tested BER is This is what you would see if there are nozzles not printing correctly Missing Lines Misdirected Lines Ah NK Partial Printing Unequal Spacing Missing Lines C6074282 1 Inthe top pattern of the Print Quality Test there is a series of stepped diagonal lines If one or more of the nozzles are malfunctioning or mis positioned you will see that the stepped lines are broken or misdirected in one or more places 2 Below the top pattern on the Print Quality Test there is a series of horizontal str
88. coder strip spacer item 4 9 Release the encoder strip from the carriage assembly 10 Release the encoder strip from all the retaining pins item 5 along the back of the printer 11 The encoder strip can now be removed from the printer C607411 Figure 32 Encoder Strip 8 36 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Tensioner Refer to Figure 33 to Figure 35 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Left Hand Cover see page 8 13 2 To release the tension on the belt item 1 from the left hand side of the Printer squeeze the spring item 2 using the tensioner wedge clip item 3 until you hear it click into place refer to Figure 33 C6074 15 Figure 33 Tensioner Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 8 37 Removal and Installation 3 Remove the belt item 1 from the belt motor pulley item 2 on the right hand side of the Printer refer to Figure 34 Figure 34 Tensioner Assembly NOTE For steps 4 to 6 refer to Figure 35 4 Remove the tensioner pulley item 1 from the belt item 2 which is located in the tensioner assembly item 3 5 Remove the two T 15 screws item 4 securing the tensioner assembly to the slider rods item 5 6 Remove the tensioner assembly item 3 Figure 35 Tensioner Assembly 8 38 HP DesignJets 1050C and 1055CM Printers
89. coefficient Avoid push pull forces being transmitted to the tubes 10 6 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview Air Pressurization System APS The APS is the system that provides and controls the pressurization of the ink in the Ink Cartridges The key mission of this system is to ensure the minimum required ink pressure at the inlet to each Printhead respectively at the required print rates Note that only a minimum pressure needs to be controlled since the purpose of this pressure is simply to refill the Printhead fast enough to maintain the Printhead s internal pressure within its limits needed for drop weight control The APS is also used to provide pressure for tube purge and as part of the blow prime system operation The mechanism used is a low pressure pneumatic system with feedback control of the air pressure The air circuit includes the Ink Cartridges flexible air tubing manifold connectors for the tubing a DC motor driven air pump a 2 way solenoid valve and an analogue pressure sensor Connection is made to each Ink Cartridge respectively by the same needle septum system used for the ink there is also a quick connect between the tubing and manifold that remains attached to the Tubes System and the APS Module The APS module is a service replaceable module that houses the pump valve and sensor in one chassis which also doubles as an ink catcher this ass
90. controls for the user to modify the image in order to obtain the desired colors m Printing with PostScript reduces the problem significantly m Avoid very long exposures to extreme environmental conditions after printing with glossy media more than 12 hours at 80 humidity may result in severe changes in color Scratches on prints done on NTP Vellum and HP High Gloss media Normally at the end of a roll the curl on the media is high and the printed area can touch the media load handles or the media roll transferring ink to the still not printed media or damaging the actual print This problem mainly affects Natural Tracing Paper NTP Vellum and HP High Gloss Media To solve the problem try the following m Increase the Dry Time using the Front Panel Refer to the User s Guide Chapter 3 Working with Paper E Install a new roll of media HP DesignJets 1050C and 1055CM Printers Service Manual 1 11 Troubleshooting Banding at variable extreme environmental conditions Since the Accuracy Calibration has been done at normal environmental conditions printing in extreme environmental conditions will cause banding because the advance of the Drive Roller does not correspond to the same conditions that the calibration was done in To solve the problem try the following m Perform the Accuracy Calibration in the new environmental conditions Refer to the User s Guide Chapter 8 Reconfiguring your Printer B
91. ct all of the printheads Please wait while printer tries to recover the printheads Reprint the image you were attempting to print before in the same mode to see if the problem still exists If the problem continue reprint the image using Best mode 6 If printing in Best mode is not acceptable replace the offending printheads If you re not sure which printhead is giving you the problem print out the Print Quality Test This will help you find the faulty printhead 6 14 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality Problems with Color to Color Alignment Description of problem When you look at the image you have printed m The colored lines are printing double and they are the wrong colors S QQ KL car m The borders of colored blocks are overlapped and the overlapping areas have different colors in them C6074287 m Vertical lines are mis aligned or fuzzy not smooth C6074304 How to solve the problem 1 Make sure you have paper loaded not clear film tracing paper or vellum HP DesignJets 1050C and 1055CM Printers Service Manual 6 15 Print Quality 2 Go to the Printer submenu and press Enter Printer submenu 3 Perform the Printhead Alignment Calibration by going to Utilities Calibration Printhead Alignme
92. d Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 If after reseating and cleaning the printhead the failed message disappears but then reappears later replace the printhead If all 4 Printheads have the Status Failed it is possible that the Carriage Assembly is faulty 3 14 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting Monitor Setup Used Insert NOTE When this message is displayed it means that the printhead has reached its life expectancy To find out how to see the amount of ink consumed by the printhead and the usage time go to page 3 9 Obtaining Printhead Information Printhead life is anticipated to be 700ml or twelve months 9 000 hours in the printer whichever occurs first provided that the printhead is used under normal operating conditions using HP ink cartridges only and its install before date has not lapsed However results vary depending on the print quality setting used The printer will attempt to warn the user when this stage is reached with the monitor message Even with the monitor message being displayed good image quality can still be obtained but it could start degrading The customer will have to check the images being printed and decide if they are of an acceptable print quality If the customer wants to ensure optimum print quality with maximum unattendedness they should consider buying a new printhe
93. d at the secondary coil The secondary voltage vs primary current ratio gives a measure of the coupling coefficient The measured ratio increases with decrease in ink remaining but the relationship is not linear Due to the complexity of the bag collapse process an empirical relationship has been developed using characterization data obtained in an experimental way The ratio vs remaining ink curves are different for each one of the available supply sizes 175 cc and 350 cc The ISS board also includes the circuitry needed to monitor the status of the reservoirs It is possible to check the electrical continuity of both the primary and the secondary coils and also to detect if the bag has an ink leak This last function is performed by measuring the current flow between the two ink leak detection pads located in the flex PCB Leak Detect System LDS The purpose of the Leak Detect System LDS is to detect the breakage of any of the tubes that deliver ink from the Ink Cartridges to the Printheads With the tube routing the tubes are continuously stressed in flexture When the Carriage moves back and forth the section of the tube that is stressed also moves causing fatigue cycling When a tube breaks a small crack appears As the system is pressurized the ink flows through the crack and gets between the tube and the tube carrier filling it The Carriage end of the tube carrier is sealed with an O ring that has been overmolded to
94. d the controller present on the front panel board allows us to have both text and graphics at the same time on the display The display has an LED backlight to improve its viewing characteristics The backlight can be turned ON and OFF by the software The contrast of the LCD can also be adjusted The keys are distributed in four groups m 2 keys at the bottom left corner are used to select the Print Quality Best Normal or Fast and Color Grayscale printing The LEDs on top of the keys show the selected option E 2 keys at the top left part are used to send commands directly to the printer Cancel and Form Feed and Cut m 5 keys to the right of the display are used to navigate through the 10 4 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview menus Back Enter Up Down and Menu You can print a demo plot called Menu to get the complete menu tree m key on the upper right corner is used to switch the power ON and OFF This key is called soft power ON OFF in contrast to the hard power ON OFF switch located at the back of the printer The beeper is used to provide audible feedback to the user Ink Delivery System IDS The Ink Delivery System IDS delivers ink under pressure from the large capacity off axis ink cartridges via permanently connected tubes to the high throughput printheads for the HP DesignJet 1050C and 1055CM Printers The IDS consists of five major subsystems m The Ink Supp
95. des Carriage Height Tool Cutter Assembly and Line Sensor 2 C6072 60200 1 Cutter Assembly Includes Screw and Washer 3 0624 0737 1 Screw 4 3050 1982 1 Washer 5 C6072 60196 1 Trailing Cable Includes Nye Oil Trailing Cable Clip Cover Cap Trailing Ferrite and Ferrite Pincer C6071 60166 1 Carriage Height Tool Also Included with the Carriage Assembly 7 18 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams o F S Figure 11 Carriage Assembly 7 19 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Scan Axis Assemblies Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6072 60148 1 Scan Axis Motor 2 0515 0382 2 Screw 3 C6072 60149 1 Tensioner Assembly Includes Pulley Assembly Pulley Spring Wedge and Actuator Arm 4 0515 0382 2 Screw 5 C6072 60199 1 Cutter Actuator Arm also included with item 3 6 C6072 60198 1 Belt Includes Oil 7 C6072 60197 1 Encoder Strip 8 0535 0031 2 Nut 9 3050 0026 2 Washer 10 C6072 60158 1 Left Rollfeed Module 11 C6072 60155 1 Right Rollfeed Module 12 C6072 60156 1 Right Rollfeed Brake 13 0624 0704 1 Screw for item 12 14 1 Washer for item 12 15 C6072 60157 1 Left Rollfeed Brake 16 0624 0704 1 Screw for item 15 17 1 Washer for item 15 18 2 Screw for it
96. dges CMYK Cyan magenta yellow and black The colors of the printer s four inks and also a standard color model coated paper Paper coated on one side for inkjet printing default A value or condition that is assumed if no other value or condition is specified Glossary device An external item connected to the computer printer plotter tape drive etc Your HP DesignJet is a device dpi Dots per inch a measure of print resolution driver The software that controls the communication between a computer and a device front panel The control panel on the right of the printer front panel menus The structure of options in the front panel display graphics language A programming language telling a print device how to output graphic data grayscale Shades of gray to represent colors high gloss film A glossy opaque polyester media type high gloss photo A glossy opaque photographic paper Glossary HP GL 2 One of Hewlett Packard s standard graphics languages for plotters and printers Produces vector data Newer than HP GL IDS Ink Delivery System T O Input output The transmission of data between a computer and a device inked area The smallest rectangle that contains all the content of the drawing while maintaining its relative dimensions ISO size An international standard media size e g Al A2 etc ISS Ink Supply Station JIS size A Japanese standard med
97. ditions after being printed especially very high humidity you can reduce the color consistency problems m If you notice that there are color changes between different printers i e between the 750C and this printer It is normal There will be color differences between HP DesignJet printers because the other printers use a different type of ink Long Term Color Bleeding Glossy Papers If you see the colors are bleeding into the paper 1 e the color is soaking into the paper making the lines fuzzy and bleary This will be because of the humidity conditions that the printer is working under Ask the customer to change the paper that they are printing with or m Remove the printer from the high humidity conditions 6 22 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality Color Accuracy Configuration The configurations of the printer the driver and the software RIPs define how ink is applied to each type of media Use the information in the following table to configure the printer and software for best color accuracy Location of Setting Setting Description Selection edia E Set to match the media type loaded in the printer Ink Emulation PS only E Set the type of CMYK inks that your software generates If you use HP drivers use Native Ink Limiting PS only E Set to ON Color Calibration PS only Set to ON HP Drivers Media E Set to match the media type loaded in the p
98. dule gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 19 System Error Codes System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action System Error Problem Description Corrective Action 0B0006 The Trailing Cable has been incorrectly connected OR the fuse in the Electronics Module has been burned Turn the Printer OFF and disconnect the trailing cable Check that the ends of the Trailing Cable are flat and are not damaged or bent Reconnect the Trailing Cable correctly making sure it is pushed in firmly Refer to the instructions on Page 8 39 Power ON the Printer and check if the Error Code disappears If the Error Code continues replace the Electronics Module Refer to the instructions on Page 8 25 making sure you take care when you reconnect the Trailing Cable PLEASE TAKE CARE WHEN CONNECTING THE TRAILING CABLE TO THE ELECTRONICS MODULE INCORRECT INSTALLATION WILL BURN THE FUSE IN THE ELECTRONICS MODULE CAUSING THE COMPLETE REPLACEMENT OF THE ELECTRONICS MODULE 0B0007 Unable to detect Vacuum Fan Try the following m Make sure that the Vacuum Fan is connected correctly to the Electronics Module m Turn
99. e 8 53 0A0040 Ink Tubes Initialization Failure Due to Low Air Pressure Try the following m Check all the cables of the APS and make sure they are correctly connected and are NOT damaged m Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged E Replace ONE Ink Cartridge at a time checking if the error code disappears m Faulty APS Sensor or APS Pump Replace the complete APS gt Page 8 20 2 14 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action WARNING System Error Codes 0A0050 Non Continuable The Printer has detected a leak in the Tubes System before the life of the System Try the following m The leak detector could have been triggered due to condensation in the Printer Power OFF the Printer and allow the Printer to dry for 15 minutes Power ON the Printer and check if the error code has disappeared m If the Error Code reappears replace the complete Tubes System SRK gt Page 8 53 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 0A0060 Non Continuable The Printer has detected a leak in the Tubes System after the life of the System
100. e Action NOTE 010042 Error in Service Station axis Encoder quadrature Try the following Check that the Service Station Encoder Cable is NOT broken or damaged m Check that the Service Station Encoder Cable is correctly connected m Replace the Service Station Page 8 8 m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 010050 XXXXXXXX Non Continuable PostScript Processing Error Power the Printer OFF and ON again to see if the System Error disappears Try sending the print again If the Error Code reappears after sending the print again then report the error to the HP response Center or the nearest HP Support Office stating the following information m Model and Serial Number of the printer m Which firmware revision the printer is using See Note below Check firmware in Utilities Statistics Code rev m The complete error number See Note below m The Service Configuration Print Page 1 19 m The Current configuration sheet m Which software application the customer is using name version etc When reporting the System Error Code make sure that you supply the full Error Code including the last 8 numbers where applicable and the firmware version Without this informatio
101. e Enter key Ink System options Cyan cart info Magenta cart info Yellow cart info Black cart info 3 8 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting 5 The front panel displays information on the selected ink cartridge Cyan cart info HP No 80 ink cartridge Ink level 87 Capacity 350ml Part number C4871A Mfg month 5 1998 The information supplied is m The make of the ink cartridge HP No 80 are recommended m The percentage of how much ink is remaining m Original capacity of the ink cartridge in milliliters m Re order part number of the ink cartridge m The month and year that the ink cartridge was manufactured Obtaining Printhead Information 1 To get information on your printheads press the Top key on the front panel to go to the main menu 2 Press the or J key until the front panel displays the ink system menu Press Enter Ink System Menu HP DesignJets 1050C and 1055CM Printers Service Manual 3 9 HP No 80 Ink Supplies Troubleshooting 3 Press the T or J key until the front panel highlights Printhead info Press the Enter key Ink System options Replace printhead Replace Ink cartridge Ink cartridge info Printhead info 4 Press the T or J key until the front panel highlights the color that you want to see information on Press the Enter key Printhead info printhead info M
102. e Printer and remove as shown in Figure 66 Figure 66 Leak Detector HP DesignJets 1050C and 1055CM Printers Service Manual 8 61 Removal and Installation Front Platen Assembly Refer to Figure 67 Removal WARNING Switch off the printer and remove the power cord 1 Open the window NOTE In the following steps please treat the screws with great care as they can easily be damaged 2 Remove the nine T 10 screws item 1 from the front platen assembly item 2 and remove the front platen C607421 Figure 67 Front Platen Assembly 8 62 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Platen Assembly Removal WARNING Switch off the printer and remove the power cord NOTE CAUTION NOTE Open the window In the following steps please treat the screws with great care as they can easily be damaged Remove twenty nine screws T 10 screws item 1 from the platen assembly item 2 and remove the platen assembly see Figure 68 C607421 Figure 68 Platen Assembly Installation of the Platen Assembly When installing the Platen Assembly make sure the screws are installed properly so that the heads of the screws do not interfere with the media path when the printer is in use Do not exceed a torque of 10 psi on the screws You must perform the following Service Calibrations after the installation of the Platen Assembly m Carriage Height Calibratio
103. e System Error Code make sure that you supply the full Error Code including the last 8 numbers where applicable and the firmware version Without this information HP Support Personnel cannot help you HP DesignJets 1050C and 1055CM Printers Service Manual 2 7 System Error Codes System Error Problem Description Corrective Action System Error Problem Description Corrective Action 04Cxxx EIO Accessories EIO Card Hard Disk Drive Error Try the following m Press ENTER and switch the printer OFF Remove the Hard Disk Drive if installed and make sure that the EIO card is installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened Switch the printer ON again If this error code continues to appear then replace the EIO card m If this Error Code disappeared after removing the Hard Disk Drive then switch the Printer OFF and reinstall the Hard Disk Drive making sure that the two installation screws are completely tightened Switch the Printer ON again If this Error Code reappears then the Hard Disk Drive could be faulty Replace the Hard Disk Drive m If this system error continues to appear after replacing the EIO card or the Hard Disk Drive then replace the Electronics Module Page 8 25 048xxx The EIO card is from a third party vendor and may not be fully compliant with the IIO Protocol specification 2 0 OR the EIO Card firmware
104. e cables of the APS and make sure they are correctly connected and are NOT damaged m Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged m Faulty APS Sensor APS Valve or APS Pump Replace the complete APS Page 8 20 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 13 System Error Codes System Error Problem Description Corrective Action System Error Problem Description Corrective Action System Error Problem Description Corrective Action 0A0020 Error in Calibrating the APS Sensor Try the following m Check all the cables of the APS and make sure they are correctly connected and are NOT damaged m Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged m Faulty APS Sensor or APS Valve Replace the complete APS Page 8 20 0A0030 Problem in Depressurizing Air System Try the following m Check the APS for any signs of Ink Also inspect ALL Ink Cartridges for any signs of leaking the bottom valve of the Ink Cartridge will contain ink m If there is Ink Leakage replace ALL Ink Cartridges the APS gt Page 8 20 and the Tubes System Pag
105. ed and that the Primer arm moves freely from side to side m Replace the Service Station Page 8 8 m If the Error Code continues replace the Electronics Module Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 21 System Error Codes System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action System Error Problem Description Corrective Action 0B000B Pump or Pressure Sensor not working Try the following m Check that the cable from the Ink Supply Station ISS PCA to the Ink Supply Station is correctly connected m Check that the Air Pressurization System Sensor Cable is correctly connected and is NOT damaged m Check all the tubes of the APS and make sure they are NOT pinched or damaged m Faulty APS Sensor APS Valve or APS Motor Replace the complete APS Page 8 20 m If the error code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed OBOOOC Serial Device ADC test failure Replace the Electronics Module Page 8 25 0
106. elt item 2 which is located in the tensioner assembly item 3 14 Remove the two T 15 screws item 4 securing the tensioner assembly to the slider rods item 5 15 Remove the tensioner assembly item 3 BRE Carriage Assembly and Belt Figure 47 8 49 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE For the following steps refer to Figure 48 CAUTION The rear bushing item 1 on the carriage assembly is tensioned with a spring item 2 When removing the carriage assembly item 3 hold the rear bushing on the carriage assembly 16 Remove the carriage assembly item 3 by sliding it off the slider rods 17 Remove the belt item 4 from the carriage assembly by releasing it from retaining clips item 5 underneath the carriage assembly Figure 48 Carriage Assembly and Belt 8 50 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Installation of the Carriage Assembly NOTE Please take note of the following steps when installing the Carriage Assembly 1 Make sure that the trailing cable is seated correctly and that the trailing cable support is straight and has NO bubbles as shown in Figure 49 C607441 Figure 49 Trailing Cable Installation 2 When installing the Carriage engage the Clutch Arm as shown in Figure 50 C607420d Figure 50 Clutch Assembly HP DesignJets 1050C and 1055CM Printers S
107. em 15 7 20 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams 12 13 and 14 15 16 17 and 18 Figure 12 Scan Axis Assemblies HP DesignJets 1050C and 1055CM Printers Service Manual 7 21 Parts and Diagrams Drive Roller and ARSS Miscellaneous Parts Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6071 40017 1 Drive Roller Gear See Note Below 2 0515 2200 2 Screw 3 C6071 40016 1 Drive Roller Bracket See Note Below 4 0515 2282 2 Screw 5 C6071 60155 1 ARSS Miscellaneous Parts 6 0515 1743 1 Screw 7 C2847 20018 1 Screw NOTE Items 1 and 3 are not orderable separately These parts are included when you order the Drive Roller Assembly on Page 7 28 7 22 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 13 Drive Roller and ARSS Miscellaneous Parts HP DesignJets 1050C and 1055CM Printers Service Manual 7 23 Parts and Diagrams Paper Path Assemblies 1 C6072 60153 1 Spindle 2 C6072 60154 1 Entry Roller 3 0515 2986 2 Screw 4 C6072 60150 1 ARSS Assembly 5 C6072 60152 1 ARSS Assembly Handles 6 0515 2250 8 Screw 7 C6072 60162 1 Front Platen Assembly including screws 8 C6072 60161 1 Centre Platen Assembly including screws 7 24 HP DesignJets 1050C and 1055CM Printers Service Manual Part
108. embly clips under the ISS Housing The APS pressurizes the ink in the cartridge bags by pressurizing the air around them The printer controls the pressure of this air using the pump with feedback from the sensor when required the valve is opened to de pressurize the air circuit This air pressure thereby controls the ink pressure at the inlet to the printheads The system pressure for printing is set to ensure the defined Printhead inlet pressure for the highest possible flow rate Ink Level Sense ILS The Printer includes a subsystem to monitor the amount of ink left in an off axis ink supply called Ink Level Sensing ILS The ink supplies used in the Printer consist of a collapsible ink bag inside a pressure shell Two coils are attached to the external side of the bag and aligned with each other so that they form a variable transformer The coupling coefficient of the transformer is a function of the distance between both coils that is it depends on the amount of HP DesignJets 1050C and 1055CM Printers Service Manual 10 7 Functional Overview remaining ink These two coils are part of a flex PCB that also includes the connection pads and the ink leak detection pads The ISS board includes the electronics required to measure the level of ink using this variable transformer The circuit generates the excitation signal applied to the primary coil and reads both the current flowing through the primary coil and the voltage induce
109. er 5 6 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 3 If media is not loaded the following message appears on the front panel and you must load media into the Printer NOTE Do NOT use any other type of media apart from HP High Gloss Photo Paper ACCURACY Load paper for calibration 4 The Printer will start to print the Accuracy Calibration Pattern and the following message will be displayed on the front panel ACCURACY Calibrating 5 Once the Accuracy Calibration Pattern is completed the following message will be displayed Remove the pattern from the media and select Measure Pattern and press Enter E Top B Back C PO B er 6 Rotate the pattern so that the edge with the arrows points to the leading edge and then reload the pattern with the arrow edge print facing down Recalibrate L Make Selection Create Pattern Measure Pattern Press Enter 7 The Printer will load the pattern and then measure the alignment marks using the line sensor on the Carriage Assembly The HP DesignJets 1050C and 1055CM Printers Service Manual 5 7 Service Calibrations following message will be displayed while the Printer measures the pattern ACCURACY Measuring 8 Once the calibration is completed the following message will be displayed Top B Back EE E B Enter Calibration done Press ENTER to continue Press Enter
110. er axis Motor cable from position P3 PAPER MOTOR on the electronics module Disconnect the Paper axis encoder cable from position P1 PAPER ENCODER on the electronics module Remove the two T 10 screws item 1 securing the gear item 2 to the right side of the roller and remove the gear Remove the four T 20 screws item 3 securing the Paper axis Motor Assembly item 4 to the right hand chassis Remove the Paper axis Motor Assembly C607421 Figure 7 Paper axis Motor Assembly You must perform the Accuracy Calibration Page 5 6 after the installation of the Paper Axis Motor Assembly HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Left Hand Cover Refer to Figure 8 to Figure 15 Removal 1 Remove the Ink Cartridges Refer to the User Guide WARNING Switch off the printer and remove the power cord NOTE Working from the rear of the printer 1 Open the door at the back of the left hand cover by removing the two T 15 screws item 1 refer to Figure 8 Til Figure 8 Left Hand Cover HP DesignJets 1050C and 1055CM Printers Service Manual 8 13 Removal and Installation 2 Release the tube holder item 1 from the rear of the left hand cover by pushing it up and out refer to Figure 9 a Se A aS os Ys a 1 o
111. er to Figure 5 Removal WARNING Switch off the printer and remove the power cord 1 Remove the Printhead Cleaners Refer to the User Guide 2 Remove the following 1 Right Hand Cover see page 8 4 2 Service Station Assembly see page 8 8 3 Disconnect the Drop Detector cable from the Service Station Cable 4 Remove the screw item 1 that attaches the Drop Detector Assembly item 2 to the Service Station item 3 5 Remove the Drop Detector from the Service Station C607436 Figure 5 Drop Detector Assembly 8 10 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Vacuum Fan WARNING Refer to Figure 6 Removal Switch off the printer and remove the power cord Remove the following 1 Right Hand Cover see page 8 4 2 Service Station Assembly see page 8 8 Disconnect the vacuum fan cable from position P7 VACUUM FAN on the electronics module Remove the four T 15 screws item 1 securing the vacuum fan assembly item 2 to the right hand side chassis and remove the assembly C607421 Figure 6 Vacuum Fan HP DesignJets 1050C and 1055CM Printers Service Manual 8 11 Removal and Installation Paper axis Motor Assembly WARNING NOTE Refer to Figure 7 Removal Switch off the printer and remove the power cord Remove the following 1 Right Hand Cover see page 8 4 2 Service Station Assembly see page 8 8 Disconnect the Pap
112. errors The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions Only try one recommended action at a time and check if the error code has disappeared If you have an error code which is not documented in this Service Manual or you have an error which you cannot resolve then report the error to the HP Response Center or the nearest HP Support Office When reporting the error have the following information ready Model and Serial Number of the printer Which firmware revision the printer is using See Note below Check firmware in Utilities Statistics Code rev m The complete error number See Note below m The Service Configuration Print Page 1 19 m The Current configuration sheet m Which software application the customer is using name version etc When reporting the System Error Code make sure that you supply the full Error Code including the last 8 numbers where applicable and the firmware version Without this information HP Support Personnel cannot help you Continuable and Non Continuable Error Codes Some of the Error Codes are continuable which means you can press Enter on the front panel and continue working with the Printer Non Continuable Error Codes do not allow you to continue working with the Printer in this case power the Printer OFF and ON again and see if the System Error disappears If the Error Code reappears then the Pr
113. erted the printhead into the printhead carriage assembly and the printer does not BEEP try the following steps Check that during the priming process the Setup Printheads are installed in the Carriage If the printing Printheads are installed in the carriage during the priming process they will be rejected and the front panel will show the Wrong Model message m Check that you have removed the protective tape from the printhead Insert the printhead into the carriage assembly but this time close the cover using the latch m Clean the electrical contacts on both the printheads and the printhead carriage assembly using the carriage interconnect wiper Page 3 18 m Replace the printhead with a new one You Cannot Insert the Ink Cartridge Into the Printer Ensure that you have the correct HP No 80 ink cartridge Ensure that the Ink Cartridge is the correct color for that slot 3 Ensure that the Ink Cartridge is the correct orientation with the A U N m p color coded label at the top Never clean inside the ink cartridge slots You Cannot Insert the Printhead Into the Printer Ensure that you have the correct HP No 80 printhead Ensure that the printhead is the correct color for that slot Ensure that the printhead is the correct orientation Ensure that the protective cap is removed from the Printhead You Cannot Insert the Printhead Cleaner Into the Printer Ensure that you have the correct HP No 80 printhead cleane
114. ervice Calibrations Is the printer calibrated correctly after replacing a component Refer to the table on Page 5 2 to determine when a calibration is required Remember that certain Calibrations are required even if an Assembly has been disassembled to gain access to another Assembly or Component For information on the Service Calibrations and how to use them see Chapter 5 Service Calibrations Solving Image Quality Problems Whenever an Image Quality problem appears it is advisable to print the Image Quality Print to help diagnose the problem The Image Quality Print will help you differentiate between possible printhead errors and other problems such as incorrect front panel selection driver or RIP configuration or mechanical problems For information on solving Image Quality problems see Chapter 6 Print Quality HP DesignJets 1050C and 1055CM Printers Service Manual 1 3 Troubleshooting NOTE NOTE NOTE Front Panel LEDs Flash Briefly at Power ON amp Nothing Else Happens The Power Supply detects a Short and shuts down the Power The Hard Disk Drive or the Network Card could be faulty Troubleshoot the problem as follows a Ifthe Printer has a Hard Disk Drive and or a Network card installed switch the Printer OFF from the back of the Printer and remove them both b Switch the Printer ON again c Ifthe Printer functions correctly now switch the Printer OFF again and reinstall the Network Card co
115. ervice Manual 8 51 Removal and Installation 3 When installing the belt make sure it is not twisted and is installed in the correct orientation as shown in Figure 51 Installed in the direction of the Scan Axis Motor Installed in the direction of the Tensioner Assembly C607442 Figure 51 Belt Installation NOTE You must perform the following Service Calibrations after the installation of the Carriage Assembly Carriage Height Calibration Page 5 24 Line Sensor Page 5 9 Service Station Page 5 1 1 Roller Mark Position gt Page 5 3 Color to Color Calibration Page 5 16 Pen Alignment gt Page 5 22 8 52 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Tubes System Assembly Refer to Figure 52 to Figure 63 Removal 1 Remove the Printheads Ink Cartridges and the Printhead cleaners Refer to the User s Guide for details Cleaners inside cover i Printhead Printer carriage Figure 52 Printer Carriage Location WARNING Now turn off the printer with the main power switch at the rear of the printer 2 Move the carriage to a position where you can access the printhead tube connector Refer to Figure 53
116. es Troubleshooting General Information About HP No 80 Supplies For optimum results from the printer and modular ink delivery system always follow these guidelines when handling the HP No 80 supplies m Always install the ink cartridges printheads and printhead cleaners before the expire date which is on the packaging Install a new printhead cleaner every time you change a printhead Allow the printer and printhead cleaners to automatically clean the printheads E Install ink cartridges printheads and printhead cleaners in their color coded slots m Follow the instructions on the front panel of the printer during installation mE Avoid unnecessary removal of the ink cartridges and printheads m When turning off the printer always use the power Off button on the front panel The printheads are then stored correctly which prevents them from drying out m The ink cartridges should never be removed while the printer is printing They should only be removed when the printer is ready for you to replace them The front panel will guide you through the removal and installation procedure See page 3 6 When Should You Replace the HP No 80 Supplies 3 4 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting Some General Precautions When Handling HP No 80 Supplies CAUTION Do not touch wipe or attempt to clean the printhead nozzles This can damage the printhead Do n
117. esignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Left Hand Cover and Window Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6072 60167 1 Left Hand Cover 2 0624 0771 4 Screw 3 C6072 60173 1 Left Hand Trim 4 0515 2248 1 Screw 5 0624 0771 1 Screw 6 C6072 60164 1 Window 0624 0704 2 Screw for rear door to access the Ink Tubes System 7 C6072 60145 1 Ink Tubes System Includes Setup Printheads Ink Collector Carrier Clip Nye Oil and ISS Housing Foam 8 C6072 00002 1 Nameplate HP DesignJet 1050C C6075 00001 1 Nameplate HP DesignJet 1055CM 9 C4704 00119 1 Adobe Logo Label Only for HP DesignJet 1055CM C607 1 60167 1 Setup Printheads 7 10 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 7 Left Hand Cover and Window HP DesignJets 1050C and 1055CM Printers Service Manual 7 11 Parts and Diagrams Right Hand Assemblies Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6072 60178 1 Service Station Assembly Includes Drop Detector and Primer Assembly 2 0624 0771 2 Screw 3 0515 2248 1 Screw for Service Station 4 C6072 60159 1 Vacuum Fan 5 0515 2248 4 Screw 6 0515 1349 2 Screw 7 C6072 60160 1 Paper Axis Motor Assembly includes Helical Gear and Gre
118. est again HP DesignJets 1050C and 1055CM Printers Service Manual 4 7 Service Tests and Utilities WARNING WARNING 2 If the Test fails again switch the Power OFF disconnect the power cord and Replace the DRAM DIMMs Memory Modules Reconnect the power cord and power On the Printer and perform the test again Replace the Electronics Module Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed Trailing Cable Failure If there is a problem with the Trailing Cable then the following message will appear on the front panel ELECTRONIC SYSTEMS Possible Failure on Code 0OXXXX 0000XX In this case try one of the following Make sure that the Trailing Cable is connected correctly Power OFF the Printer and connect a new Trailing Cable to the Carriage and the Electronics Module without removing the old Trailing Cable from the Printer Perform this test again and if the test FAILS then DO NOT replace the trailing cable If the test PASSES replace the Trailing Cable gt Page 8 39 Power OFF the Printer and connect a new Carriage Assembly to the Trailing Cable without removing the old Carriage Assembly from the Printer Perform this test again and if the test FAILS then DO NOT replace the Carriage Assembly If the test PASSES replace the Carriage Assembly Page 8
119. ests and Utilities Introduction 4 2 Diagnostics Self Test 4 2 Service Tests Diagnostics 4 3 Entering the Service Tests Menu 4 4 1 Electronic Systems 4 5 2 EIO Card 4 10 3 Hard Disk Drive 4 12 4 Ink Pressure System 4 14 5 Scan Axis 4 17 6 Paper Axis 4 20 7 Drop Detector 4 22 Service Utilities 4 25 Entering the Service Utilities Menu 4 26 1 Tubes Purge 4 28 2 Release Info 4 32 3 Set Asian PS Fonts 4 33 4 Printer Model Type 4 35 5 Overdrive Cleaning 4 37 6 EEROM Utilities 4 38 7 Printhead Check 4 41 8 Mon Mode Baud Sel 4 42 HP DesignJets 1050C and 1055CM Printers Service Manual 4 1 Service Tests and Utilities Introduction This chapter explains how to use the built in Service Tests and Service Utilities and what to do if any of the Service Tests fail If possible always perform a Service Test on the component that you are about to replace just to make sure that is the component that has failed If the test on that component passes there is no need to replace it Diagnostics Self Test Initialization Sequences Whenever the Printer is switched ON it automatically performs a series of internal self tests and mechanical initialization sequences If any of the parts fail a system error will appear and you should consult Chapter 2 System Error Codes 4 2 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities Service Tests Diagnostics WARNING T
120. f the printer and remove the power cord NOTE Working from the rear of the Printer 1 Remove the T 10 Screw Item 1 that attaches the left hand rear cover Item 2 to the Printer 2 Release the left hand rear cover Item 2 from the retaining clip item 3 that attaches the ferrite item 4 to the rear cover 3 Remove the T 10 Screw Item 5 that attaches the right hand rear cover Item 6 to the Printer 4 Release the right hand rear cover Item 6 from the retaining clip Figure 22 Left and Right Rear Covers 8 24 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Electronics Module WARNING NOTE NOTE WARNING Refer to Figure 23 and Figure 24 Removal Switch off the printer and remove the power cord Working from the rear of the Printer Remove the following 1 Left and Right Hand Rear Covers see page 8 24 2 Tail Deflectors and Rear Platen see page 8 23 For steps 2 to 7 refer to Figure 23 Locate the four T 10 screws item 1 that secure the DIMM cover item 2 to the Electronics Module Remove the four screws and the DIMM cover Note the position of the DIMMs From left to right m The DRAM DIMM s are held in the Ist and 2nd slot item 3 m The Firmware Postscript Code DIMM Flash DIMM are held in the 3rd slot Item 4 Remove the DIMMs by releasing the retaining clips at the top and bottom of each one holdi
121. f the rods 9 4 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview Introduction 10 2 HP DesignJet 1050C Printer 10 2 HP DesignJet 1055CM printer 10 2 Electrical System 10 2 Power Supply Unit PSU 10 3 Soft Power Off Switch 10 4 Front Panel 10 4 Ink Delivery System IDS 10 5 Ink Supply Station ISS 10 5 Tubes System 10 6 Air Pressurization System APS 10 7 Ink Level Sense ILS 10 7 Leak Detect System LDS 10 8 Service Station 10 9 Print Head Cleaner PHC 10 9 Cap 10 10 Wiper 10 10 Spittoon 10 10 Snout Wiper 10 11 Handle and Printable Label 10 11 Printer Specifications 10 12 Printable Area 10 16 Interface Specifications 10 17 Regulatory Notices 10 18 Declaration of Conformity 10 22 HP DesignJets 1050C and 1055CM Printers Service Manual 10 1 Functional Overview Introduction This Chapter contains a simplified description of the HP DesignJet 1050C 1055CM Printer circuits and mechanical functions Mechanical and printed Circuit Assembly PCA overviews present a functional description of how the Printer operates HP DesignJet 1050C Printer The HP DesignJet 1050C will have a network interface 16 MB of memory but will NOT include the Hard Disk Drive HP DesignJet 1055CM printer The HP DesignJet 1055CM will have a network interface 32 MB of memory and a 2 1 Gbytes Hard Disk Drive It will also be Postscript ready Electrical System The electrical system of the Printer cons
122. ge 8 25 2 4 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action WARNING System Error Codes 010040 Error in Paper axis Encoder quadrature Try the following m Check that the Paper Axis Motor cable is NOT broken or damaged m Check that the Paper Axis Motor cable is correctly connected m Replace the Paper Axis Motor Page 8 12 m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 010041 Error in Scan axis Encoder quadrature Try the following m Check that the Encoder Strip is NOT broken or damaged m Replace the Encoder Strip gt Page 8 34 m Replace the Carriage Assembly gt Page 8 44 m If the Error Code continues replace the Electronics Module Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 5 System Error Codes System Error Problem Description Corrective Action WARNING System Error Problem Description Correctiv
123. h Africa SABS licensed USA Federal Communications Commission Class B computing device CFR 47 Part 15 Australia Meets AS NZS 3548 New Zealand Taiwan BCIQ certified Product exhibits Class A operation when connected to LAN cables using Print Server accessories Printer Safety Specifications Information Technology Equipment ITE Movable Class I Plugable Type A Installation Category II Pollution Degree 2 For indoor controlled office environments use Canada Canadian Standards Association Certified ITE CSA C22 2 No 950 European Union 73 23 EEC Low Voltage Directive compliant Meets EN 60950 Mexico DGN NOMO019 SCFI 1994 certified Norway NEMKO approved EN 60950 EMKO TSE 74 DK207 94 USA Underwriters Laboratories Listed ITE UL 1950 China CCIB certified GB 4943 90 Ist Ed Czech Republic EZU IEC950 certified Singapore PSB SS337 certified Poland PCBC certified Russia GOST certified HP DesignJets 1050C and 1055CM Printers Service Manual 10 15 Functional Overview Printable Area Printing Area Paper Size Minus Margins Paper Size and Printing Area Width x Height by Orientation of Orientation of Image Pia inches millimeters landscape portrait landscape portrait ANSI paper A portrait 9 5 x 7 2 7 2x9 5 243 x 185 185 x 243 A landscape 9 8 x 7 0 7 0 x 9 8 249 x 180 180 x 249
124. he above steps to enter Service Utilities again NOTE In some cases a quick press of a button may not be recognized by the Printer When pressing a button be sure to press it deliberately and all the way to the bottom of its travel NOTE If the Printer hangs up during an operation switch the Printer OFF and restart from step 1 HP DesignJets 1050C and 1055CM Printers Service Manual 4 27 Service Tests and Utilities 1 Tubes Purge The purpose of this Service Utility is to Prime the Tubes when a new Tubes System has been installed WARNING ALWAYS PERFORM THE TUBES PURGE AFTER REPLACING THE TUBES SYSTEM NOTE Make sure that there is enough ink remaining in the Ink Cartridges before starting to prime the tubes If there is not enough ink remaining you will get a warning message Perform the Tubes Purge as follows In the Service Utilities submenu scroll to 1 Tubes Purge and press Enter EE Service Utilities Back 1 Tubes Purge Co a 2 Release Infi F e Make Selection 4 ype 5 Overdrive aus 4 B ter Press Enter The Printer will begin to startup and in order to continue press Enter EE INK STARTUP E Back Printer startup E Press Enter to L o B er Press Enter The following message will be displayed on the front panel while the printer accesses the printheads INK STARTUP Accessing Printheads 4 28 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests a
125. he following is a list of all internal Service Tests available in the Printer Instructions for entering the Service Tests menu are given on Page 4 4 The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Tests you MUST power OFF the Printer and Power ON again before trying to print Electronics System gt Page 4 5 The purpose of this test is to verify the operation of the m Electronics Module m DRAM m Trailing Cable m Carriage Assembly EIO Card Page 4 10 The purpose of this test is to verify the operation of the EIO Card Hard Disk Drive Page 4 12 The purpose of this test is to verify the operation of the Hard Disk Drive Ink Pressure System Page 4 14 The purpose of this test is to verify the operation of the m Service Replaceable Kit SRK m Air Pressurization System APS Scan Axis Page 4 17 The purpose of this test is to verify the operation of the Scan Axis Paper Axis gt Page 4 20 The purpose of this test is to verify the operation of the Paper Axis Drop Detector Page 4 22 The purpose of this test is to verify the operation of the Drop Detector HP DesignJets 1050C and 1055CM Printers Service Manual 4 3 Service Tests and Utilities NOTE NOTE NOTE NOTE Entering the Service Tests Menu In order to enter the Service Utility Menu please refer to the i
126. he following message will appear asking you to confirm the selection Select ACCEPT if you want to continue or select CANCEL if you want to cancel the operation Press Enter once the selection has been made iE Z You will lose all printer settings Ooo a E ee Enter EEROM Utilities L Make Selection Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 4 39 Service Tests and Utilities b If you decided to continue with clearing the EEROM then the following message will appear on the front panel and you should wait until the EEROM has been cleared Clearing EEROM Please wait WARNING DO NOT POWER OFF THE PRINTER WHILE THE EEROM IS BEING CLEARED BECAUSE THIS COULD DAMAGE THE ELECTRONICS MODULE c Once the EEROM has been cleared the following message will be displayed on the front panel fe Top B Back mt a BR Enter d In order to recover the calibrations information perform the Calibrations Backup Page 5 19 EEROM cleared Press ENTER to continue Press Enter e Also if necessary set the Asian PS Fonts Page 4 33 selecting the Asian PS font that was set before clearing the EEROM 4 40 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING 7 Printhead Check This Service Utility allows you to have the Printhead checking facility ON or OFF ALWAYS HAVE PRINTHEAD CHECK ON IF PRINTHEAD CHECK IS
127. he following sequence of messages will appear on the front panel INK PRESSURE SYSTEM INK PRESSURE SYSTEM Running SRK Test Running APS Test 4 14 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 3 If the test passes then the following message will appear on the front panel INK PRESSURE SYSTEM Tests passed WARNING IF THIS TEST PASSES DO NOT REPLACE THE TUBES SYSTEM OR THE APS 4 If the test fails Tubes System Failure If there is a problem with the Tubes System then the following message will appear on the front panel INK PRESSURE SYSTEM Possible Failure on 1 Ink Cartridge CMYK 2 Tubes 3 Electronics Module Code 0OXXXX 0000XX In this case try one of the following 1 Replace ALL the Ink Cartridges 2 Replace the complete Tubes System Page 8 53 3 Replace the Electronics Module Page 8 25 WARNING Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed APS Test Failure If there is a problem with the APS then the following message will HP DesignJets 1050C and 1055CM Printers Service Manual 4 15 Service Tests and Utilities WARNING appear on the front panel INK PRESSURE SYSTEM Possible Failure on 1 APS 2 Electronics Module Code 0OXXXX 0000XX In this case try one of the following
128. horizontal lines could also be caused by permanently damaged printheads The possible combinations with this problem are m Banding in cyan blue and green columns only but more evident in cyan This means that the cyan printhead could be permanently damaged Banding in magenta red and blue columns only but more evident in magenta This means that the magenta printhead could be permanently damaged m Banding in yellow red and green columns only but more evident in yellow This means that the yellow printhead could be permanently damaged m Banding in black column only This means that the black printhead could be permanently damaged If you want the best high quality image from your printer replace the damaged printhead with a new one However your printer can still produce good quality line prints Banding Caused by Media Advance Problems Another type of banding is caused by an inaccurate media advance in this case there will be banding horizontal repetitive bands along the test pattern in all the primary and secondary color columns The bands can appear as dark bands due to a shorter advance of the roller which causes an overlap or lighter bands due to a longer advance causing spaces o C6074281 HP DesignJets 1050C and 1055CM Printers Service Manual 6 11 Print Quality 2 Accuracy Recalibrate Printhea Alignment Full menu mode only NOTE Banding in all of the colors M
129. ia size LAN Local area network LDS Leak Detect System long axis printing margin The space around the page added by the printer to separate one page from another and to avoid printing right to the edge of the media matte Not glossy media The material usually paper onto which the printer prints nesting Placing two or more pages side by side on roll media to avoid waste palette A set of logical pens defined by color and width Paper axis The vertical axis as you look at the printer from the front PJL Printer Job Language A programming language that controls jobs going to a printer PML Printer Management Language parallel interface A type of interface between computer and Printing a page whose X axis the axis vertical device Generally faster than a serial interface to the printer as you look at it from the front is longer than a standard page size G 2 PANTONE The PANTONE MATCHING SYSTEM is an international standard for color communication in the graphics art industry pen Even though the plotter has no physical pens the lines it draws match the attributes of a pen platen The exterior part of the printer on which the media rests before going into the media entry slot printing area Page size minus margins PostScript A standard page markup language commonly used by graphics and desktop publishing software applications PSU Power Supply Unit queuei
130. ics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 2 16 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action System Error Problem Description Corrective Action WARNING System Error Codes 0C0032 Continuable Drop Detector not Calibrated for all Printheads Try the following m Perform the Service Station Calibration gt Page 5 m Replace the Drop Detector Assembly gt Page 8 10 m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 0C 1000 Primer not Calibrated Try the following m Perform the Service Station Calibration Page 5 m Make sure that the Primer Arm is not damaged If the Primer Arm is damaged replace the Service Station Page 8 8 m Replace the Electronics Module gt Page 8 25 0C1001 Primer Shutdown Error Try the following m Check that the Primer Stepper Motor Cable is NOT broken or damaged and that the Primer arm moves freely from side to side
131. ide 8 72 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Pinch Wheel Assembly and Cam Refer to Figure 81 and Figure 82 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following Left Hand Cover see page 8 13 Right Hand Cover see page 8 4 Electronics Module see page 8 25 1 2 3 4 Ink Supply System Assembly see page 8 19 5 Clutch assembly see page 8 21 6 Roller Guide see page 8 66 2 Remove the T 10 screw item 1 which secures the linkage rod item 2 to the pinch wheel cam item 3 refer to Figure 81 QO C607420c Figure 81 Pinch Wheel Cam HP DesignJets 1050C and 1055CM Printers Service Manual 8 73 Removal and Installation NOTE Working from the rear of the printer NOTE For steps 3 and 4 refer to Figure 82 3 Remove the twelve T 15 screws item 1 securing the pinch arm assemblies item 2 to the underneath of the scan axis NOTE The screws also secure the pinch wheel cam to the printer Support the cam as the last of these screws are removed 4 Remove the cam item 3 from underneath the scan axis White Pinch Roller White Pinch Roller Figure 82 Pinch arm Assemblies and Cam NOTE During installation make sure you install the Pinch Assembly with the White Pinch Rollers at each end 8 74 HP DesignJets 1050C and 1055CM Printers Service Manual Preventive
132. igure 17 Removal Switch off the printer and remove the power cord Remove the Ink Cartridges Refer to the User Guide Remove the following 1 Left Hand Cover see page 8 13 2 Left Rear Cover see page 8 24 Working from the rear of the printer Disconnect all the cables from the right hand side of the electronics module Working from the front of the printer Unclip the latch and lift up the front of the assembly to release the front support of the ISS from a hole in the side chassis Push the ISS away from you to release the back support of the ISS from a second hole in the side chassis Move the ISS to the left to remove completely Figure 17 Ink Supply System HP DesignJets 1050C and 1055CM Printers Service Manual 8 19 Removal and Installation Air Pressurization System APS Removal WARNING Switch off the printer and remove the power cord 1 Remove the Ink Cartridges Refer to the User Guide 2 Remove the following 1 Left Hand Cover see page 8 13 2 Ink Supply System see page 8 19 NOTE When removing the APS from the ISS take care with the tube and cables attached to the ISS 3 Release the APS from the retaining clips underneath the ISS as shown in Figure 18 NOTE If ink in the air system is suspected Ink Cartridge leakage or depressurization System Error be very careful when removing the APS because there could be ink in the APS Release from
133. iling Printhead m If the problem remains after replacing the failing Printhead then check if the customer is using a 3rd Party RIP If a 3rd Party RIP is being used check the Print Settings in the RIP or try printing one of the Internal Demo Prints to see if the problem is solved without the RIP HP DesignJets 1050C and 1055CM Printers Service Manual 2 9 System Error Codes System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action WARNING 060309 Problem with setting the Voltage of the Printheads Try the following m Remove ALL the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly Refer to Chapter 2 Perform the Electronic Systems Test gt Page 4 5 Replace ALL the Printheads Replace the Trailing Cable Page 8 39 Replace the Carriage Assembly Page 8 44 If the Error Code continues replace the Electronics Module Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 06030A Continuable Error in finding the Mark Encoder Try the following m Clean the Mark Encoder if necessary use the Overdrive Cleaning Utility to position the Mark Encoder Page 4 37 Clean the Line Sensor located on the Carriage Assembly Perform the Line Sensor Calibra
134. ing any maintenance Prevent water or any other liquids from running onto electrical components or circuits or through openings in the enclosure Electrostatic Discharge Refer to the beginning of Chapter 8 of this manual for precautions you should take to prevent damage to the Printer circuits from electrostatic discharge Safety Symbols General definitions of safety symbols are given immediately after the table of contents WARNING The Warning symbol calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in personal injury Do not proceed beyond a Warning symbol until the indicated conditions are fully understood and met CAUTION The Caution symbol calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a Caution symbol until the indicated conditions are fully understood and met Service Manual Using this Manual Purpose This Service Manual contains information necessary to test calibrate and service m HP DesignJet 1050C Printer Model C6074A m HP DesignJet 1055CM Printer Model C6075A For information about using these printers refer to the corresponding User and Quick Reference Guides Readership The procedures described in this Service Manual are to be performed b
135. inside the volume defined by the tube guides The Tube guides are a pair of sheet metal parts with opposing U shaped profiles The tubes are constrained inside them which helps avoid kinks The main functions of the tube guides are m Support the tubes in both directions horizontal and vertical m Provide an adequate sliding surface for the tube carrier m Allow easy access to the tubes in the event of replacement Due to fatigue stress limitations the space between the tubes and the guides is a compromise between stress on the tubes and space available The tubes are routed in a horizontal loop and go over the carriage The tubes are threaded inside a protective extrusion called the Tube Carrier The tube carrier is a co extruded part with two different materials that have two different functions m Base material This material provides the structure of the part It is rubber like to avoid contributing too much in forces over the carriage The material is cheap and fatigue resistant but its high coefficient of friction and low wear resistance makes it inappropriate for use in the Tube Guides m Protection ribs The Tube carrier profile outer parts that are susceptible to rubbing need to be protected These ribs are made from a hard plastic with exceptional wear properties and a very low coefficient of friction The main functions of the tube carrier is to m Protect the tubes from wear and to keep them in order E Keep a low friction
136. int Head Cleaner 10 9 Print Modes 6 3 Print Quality Troubleshooting 6 13 Troubleshooting Checklist 6 2 Print Quality Test 6 4 Printable Area 10 16 Printer doesn t power ON 1 5 Printer Model Type 4 35 Printer Power Specifications 10 13 Printer Safety Specifications 10 15 Index Printer Specifications 10 12 Printer Support 7 2 Printhead Check 4 41 Printhead Cleaners 3 2 Printhead Crashes 1 7 1 10 Printhead rejection 1 6 Printhead Smears 1 10 Printhead Status Messages Failed 3 14 Faulty 3 16 Insert 3 15 Monitor 3 15 OK 3 13 Replace 3 13 Reseat 3 16 Setup 3 15 Unknown 3 16 Used 3 15 Wrong Model 3 16 Printheads 3 2 obtaining information 3 9 Problems Color Accuracy 6 22 Color Alignment 6 8 Color Consistency 6 22 Color to Color Alignment 6 15 Cover Sensors 1 6 Horizontal Lines 6 17 Line Sensor 1 6 Long Term Color Bleeding 6 22 Media handling 1 14 Printing lines 6 14 Stepped lines 6 13 Vacuum Fan 1 9 Vacuum suction 1 9 R Rear Covers 7 4 Rear Platen 8 23 Regulatory Notices 10 18 Release Info 4 32 HP DesignJets 1050C and 1055CM Printers Service Manual Index 3 Index Removing Air Pressurization System 8 20 Back Cover 8 32 Belt 8 44 Carriage Assembly 8 44 Center Guide 8 71 Clutch Assembly 8 21 Cutter Assembly 8 42 Drive Roller 8 70 Drop Detector Assembly 8 10 Electronics Module 8 25 Encoder Strip 8 34 Front Panel Assembly 8 6 Front Platen Assembly 8 62 Ink Leak Detector Assembl
137. inter parts to solve this problem HP DesignJets 1050C and 1055CM Printers Service Manual 1 13 Troubleshooting Roll media WARNING Sheet media Solving Media Handling Problems The Front Panel Keeps Indicating that Media Is Misaligned or Incorrectly Positioned m The roll may be loaded the wrong way The paper should load over the roll toward you m The paper may be loaded at an angle The right hand edge must be parallel to the white line on the paper entry roller Ensure that the paper is wrapped tightly on the roll This is a very important step to remember because if this is not done the media may be loaded at an angle causing the media to be rejected m Perform the manual alignment procedure Refer to the User s Guide m Check that the paper is correctly loaded onto the spindle m It must be loaded with the right hand edge against the blue perforated line on the printer m The media may be crumpled or warped or may have irregular edges m If you are using hand cut media the edges may not form a right angle or they may be rough Do not use hand cut media Use only purchased sheet media m If the media you are trying to load is very slippery hold the media with both hands and gently push the media into the printer until it buckles upwards in the middle this will help the printer to load it m If the overdrive is covered in dust it will have problems picking up the sheet media during the load proces
138. inter requires an on site visit in order to resolve the problem Even though the customer can continue working with a Continuable Error Code an on site visit should still be planned to troubleshoot the problem 2 2 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action System Error Problem Description Corrective Action System Error Problem Description Corrective Action WARNING System Error Codes 0000D8 XXXXXXXX Non Continuable External Library Error Refer to System Error Code 070100 01002D Non Continuable The Main PCA cannot communicate with the Carriage Perform the Electronic Systems Test gt Page 4 5 010020 Non Continuable Firmware DIMM Test failure Try the following m Switch the Power OFF from the back of the Printer and disconnect the Power cord Reseat the Firmware DIMM reconnect the power cord and power On the Printer m If the Error Code appears again switch the Power OFF from the back of the Printer disconnect the power cord and Replace the Firmware DIMM Reconnect the power cord and power On the Printer and check if the Error Code has been resolved m If the System Error continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactl
139. iogisog pO STVD C 19 dH JO UIU C 19 dH 98SL suey HO UO IMO dny s uq 1 17 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting usoned oimseayy uroned ILAJ IPIQLIA Anrend wd ssoday Fesq BIJUOD IMAG BIJUOD 7 19 dH suud soy I0V J 9IOISIY e moy yuowuSie peoypund uoneaqep AdY U04 IduogIsod Ady Bpo d IdLIag sog 2 gwp Avjdsiq nuou ye pqa speapuud 194090 AdY IPOD ASIP PRH uosoid WVU sonsieig HP DesignJets 1050C and 1055CM Printers Service Manual 1 18 Troubleshooting Service Configuration Print The Service Configuration Print is a useful tool for troubleshooting the Printer The Service Configuration Print contains the following information about the Printer m General Configuration Printhead Info Cartridge Info Operating Conditions Calibrations Maintenance ILO Configuration How to Print the Service Configuration Print Load media Roll media or at least an A4 Sheet into the Printer 2 Once the message Ready is displayed on the front panel scroll to the Printer Setup Options icon and press the Enter key Printer Setup Options CYAN MAGENT
140. is Service Calibration is to calibrate the Service Station in relation to the Carriage Assembly 4 Roller Mark Position Page 5 13 The purpose of this Service Calibration is to calibrate the Mark Encoder which is located on the Drive Roller 5 Pen to Paper Spacing gt Page 5 15 THIS CALIBRATION IS NO LONGER REQUIRED 6 Color to Color Calibration Page 5 16 The purpose of this Service Calibration is to correct the alignment between the Printheads and the rest of the Printer This calibration is necessary in order to prevent color misalignment 7 Calibrations Backup Page 5 19 The purpose of this Service Calibration is to allow the EEROM contents to be saved when the Electronics Module or the Tubes System is replaced 8 Pen Alignment gt Page 5 22 The purpose of this Service Calibration is to correct the alignment between the Printheads This calibration is necessary in order to prevent color misalignment and print quality defects like banding Carriage Height Calibration Page 5 24 The purpose of this Service Calibration is to adjust the distance between the Carriage and the Center Platen This calibration is necessary in order to prevent problems like Printhead crashes HP DesignJets 1050C and 1055CM Printers Service Manual 5 3 Service Calibrations Entering the Service Calibrations Menu 1 Once the message Ready is displayed on the front panel scroll to the Printer Setup Options icon and press the Enter
141. is not updated Try the following m Check with the third party vendor If the EIO card is not compliant with the IO Protocol specification 2 0 then you must install a new EIO card which is compliant m Update the EIO Card firmware 2 8 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action System Error Codes 060301 One of the Printheads has an Internal Electrical Problem Try the following E Remove all the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly Refer to Chapter 2 m Perform the Electronic Systems Test Page 4 5 m Make sure that the Trailing Cable is connected correctly m Replace the Trailing Cable Page 8 39 m Replace the Carriage Assembly gt Page 8 44 m If the error code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 060305 0000000X Thermal Shutdown error one of the Printheads has gone above the maximum Temperature Error Data 00000000 Cyan Printhead Failed 00000001 Magenta Printhead Failed 00000002 Yellow Printhead Failed 00000003 Black Printhead Failed Try the following m Replace the fa
142. isalignment m Horizontal when the misalignment is in the horizontal axis Em Vertical when the misalignment is in the vertical axis HP DesignJets 1050C and 1055CM Printers Service Manual 6 7 Print Quality Below are shown two examples of alignment and misalignment correct Incorrect C6074276 Solving the Color Alignment Problem 1 Make sure you have media loaded not clear film vellum or tracing paper 2 Go to the printer submenu and press Enter Printer submenu 3 Perform the Printhead Alignment Calibration by going to Utilities a Calibration Printhead Alignment Please wait as the process of aligning the printheads takes a few minutes 4 Reprint the image you were attempting to print before in the same mode to see if the problem still exists 5 Perform the Color to Color Calibration Page 5 16 6 8 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality Overall Print Quality Test in BEST mode Blue Green Red Black Yellow Magenta Cyan Test This test pattern checks performance for banding in Best mode only for the media you are using 3 What is Banding C6074279 Banding is when you see repetitive horizontal bands within your printed image these may appear as light or dark bands The test pattern is printed with four primary colors black cyan magenta and yellow The three secondary colors printed are red blue and green and they are
143. isplay a key panel and six LEDs Power Supply Unit PSU The PSU is used to supply the power required by the product in any condition The PSU provides 5 V 3 3 V 15 V and 24 V to the main board with the following maximum output currents Voltage Maximum Output Systems Current A 433 12 0 Microprocessor Memory and digital Logic 5 0 3 0 Digital and Analog Logic 424 0 13 5 Analog power systems and Carriage Voltage Supply 15 0 0 1 Front Panel Auxiliary Voltage The PSU is housed in the electronics enclosure and there are two connections with the main board voltage supply connection and auxiliary output connection The voltage supply connection is implemented via a 15 pin connector with 14 wires this connector supply the 3 3V 5 V and 24 V voltages and the ground lines to the electronics The auxiliary output connector provides the 15V voltage the PSU preset signal and the soft power off signal PSU preset signal is a logic signal generated by the PSU when the PSU is in on state this line is in open condition when the unit is to switch off the signal is grounded at least 3 ms before the 3 3V and 5V outputs are out of regulation The power off signal is a signal generated by the main electronics and is used to turn off the power supply When the signal is not actuated the PSU is in on state when it is grounded by the main electronics then the PSU is switched off There is an input connector
144. ists of six major blocks and their associated cabling m Power Supply Unit Connected to the mains supply of whichever country this block provides 24V 5V 3 3V and 15V to the rest of the electrical system It has a soft power switching feature allowing the firmware to control when power is removed from the system and eliminates the need for high tension cables to the front panel m Main Electronics This block contains the I O central processing units and controls most of the motors and sensors in the printer The motors and sensors themselves are located throughout the printer and are connected to the main electronics via cables m Carriage Connected to the printheads this block supplies power to them as well as monitoring and protecting them from damage It also has the ability to control warming and to perform continuity checking as well as controlling the line sensor The carriage encoder is also located in this block m Ink supply station The Ink Supply Station is connected to the Ink Cartridge supplies and controls air pressure pump sensor and valve as well as monitoring ink levels and the supply latch 10 2 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview sensor m Service station Contains the electronics needed to perform drop detection a DC motor encoder for capping wiping and spitting and a stepper motor for priming Front Panel is the user interface It consists of an LCD d
145. key Printer Setup Options 2 Once inside the Printer Setup Options menu use the Arrow keys to scroll to the Utilities menu display and press the Enter key i Printer setup options Pen settings Back Device setup Utilities ea I Demos Image quality J 4 Ooo Enter Press Enter NOTE Make sure that you are in the Full menu mode because otherwise you will not be able to access the Service Tools submenu 3 Once inside the Utilities menu press the UP and Enter keys together You are now in the Service Tools Menu E Utilities Display Contrast Pack Contrast n Recover Printheads T Press Calibrations T her Test Prints od oget e ea Enter 4 Use the Arrow keys to scroll to the Service Calibrations menu and press the Enter key Ea Top B Back EE a B Enter Service Tools Service Calibrations Service Utilities Service Tests Press Enter 5 4 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 5 Use the Arrow keys to scroll through the Service Calibrations selections Service Calibrations 1 Accuracy cal 5 Pen to Paper Spacing 6 Press the Enter key to begin a specific calibration when the required Service Calibration is highlighted NOTE If the printer is not used for 3 minutes the printer exits out of the Service Calibrations Menu and you must repea
146. ll NOT be able to use the printer Why does the Printer require priming m The Tubes System is empty when the customer receives the Printer m The Tubes System has to be pressurized and filled with ink ejecting any air bubbles If the Printing Printheads are installed in the carriage during the priming process they will be rejected and the front panel will show the Wrong Model message When Should You Replace the HP No 80 Supplies When to change the HP No 80 supplies is mostly determined by you with guidance from the front panel In conjunction with the messages displayed in the front panel and the message explanations in this chapter you will be able to choose for yourself when is the right time to change the HP No 80 supplies The printer will also display the ink level and will tell you when the ink supply is low very low or empty This means you have constantly updated information about the HP No 80 supplies Printhead life is anticipated to be 700ml or twelve months in the printer whichever occurs first provided that the printhead is used under normal operating conditions using HP Ink Cartridges only and its install before date has not lapsed However results vary depending on the print quality setting being used 3 6 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting The Front Panel Display The front panel display has a dedicated area to report the statu
147. lowing message appears on the front panel you must select whether you would like to either test the EEROM or clear it Press ENTER once you have made your selection Penge Top B Back mt ee aa Make Selection Enter Press Enter 6 EEROM utilities If you want to Test the EEROM a If you want to test the EEROM then you should select Test EEROM and press ENTER The following message will appear asking you to confirm the selection Select ACCEPT if you want to continue or select CANCEL if you want to cancel the test Press Enter once the selection has been made EE Ooo Back aa L Make Selection ACC B CANCEL l ma Enter EEROM Utilities EEROM will be tested Press Enter 4 38 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities b If you decided to continue with the test then the following message will appear on the front panel and you should wait until the test has been performed Testing EEROM Please wait WARNING DO NOT POWER OFF THE PRINTER WHILE THE TEST IS BEING PERFOMRED BECAUSE THIS COULD DAMAGE THE ELECTRONICS MODULE c Once the test has been completed the following message will be displayed on the front panel E EEROM tested Ea Back EE Press ENTER to continue C J Press Enter ae Enter If you want to Clear the EEROM a If you want to clear the EEROM then you should select Clear EEROM and press ENTER T
148. ly tightened Switch the Printer ON again and repeat the EIO Card Test If the EIO Card Test fails then the Hard Disk Drive could be faulty Replace the Hard Disk Drive If the EIO Card Test continues to fail after replacing the EIO card or the Hard Disk Drive then replace the Electronics Module Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 4 11 Service Tests and Utilities 3 Hard Disk Drive The purpose of this test is to verify the operation of the Hard Disk Drive WARNING IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE HARD DISK DRIVE IF THIS TEST PASSES DO NOT REPLACE THE HARD DISK DRIVE NOTE The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print Perform the Hard Disk Drive test as follows 1 Inthe Service Tests submenu scroll to 3 Hard Disk Drive and press Enter B r B Back mt ee BR Enter Service Tests 1 Electronic Systems 2 EIO Card 3 Hard Disk Drive 4 Ink Pressure System 5 Scan Axis L Make Selection Press Enter 2 The test will start and the followi
149. ly Station ISS m The Tubes System m The Air Pressurization System APS m The Ink Level Sensing ILS m The Leak Detect System LDS Ink Supply Station ISS In the Printer the ink cartridges reside inside the ink supply station ISS This module is situated on the left side of the machine The ISS includes the plastic housing that surrounds the supplies the latch mechanism and the fluid and electrical connections to the Ink Cartridges It also supports the Air Pressure System APS with an air pump and associated tubing an air relief valve and a pressure sensor The APS forms a replaceable module clipped under the ISS These are the key functions of the ISS m Ink Cartridges support and location m Limit creep of cartridge side walls m Avoid incorrect insertion of colors and inks m Contain ink from leaks m Support the Air Pressurization System APS HP DesignJets 1050C and 1055CM Printers Service Manual 10 5 Functional Overview Tubes System The Tubes System is the assembly that performs these functions m Conduct the ink pumped from the Ink Cartridge to the Printhead Conduct the air from the pump into the Ink Cartridge E Keep the ink in good condition until it is delivered to the printhead E Avoid leaks and minimize ink on customer The main functional groups of the Tubes System assembly are the tube routing the tubes and the printhead fluid interconnect The tubes move back and forth
150. m inside the Drop Detector and close the Window Press any Front Panel key once the Window is closed Unblock Drop Detector close the window and press a FP key to continue 6 The Printer will test the Drop Detector and the following message will appear on the front panel DROP DETECTOR TEST Running Drop Detector Test ghost d HP DesignJets 1050C and 1055CM Printers Service Manual 4 23 Service Tests and Utilities WARNING WARNING 7 If the test passes then the following message will appear on the front panel DROP DETECTOR BLOCKED DD PASS GHOST DROPS PASS IF THIS TEST PASSES DO NOT REPLACE THE DROP DETECTOR If there is a problem with the Drop Detector then the following message will appear on the front panel DROP DETECTOR Blocked DD Fail Code 0OXXXX 0000XX In this case to resolve the problem try the following Check that the Drop Detector Cable is NOT broken or damaged Check that the Drop Detector cable is correctly connected to the Service Station Cable Check that the Service Station Cable is NOT broken or damaged Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor Replace the Drop Detector Assembly Page 8 10 If the test continues to fail replace the Electronics Module gt Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure
151. mal media 6 2 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality WARNING m Print one of the internal demos or print the Print Quality Test using HP Media and configuring the printer as indicated previously m If the output obtained using the HP Solution is good and the one obtained through the 3rd party solution is bad HP support organization should Communicate to the customer that the problem is not in the printer and that he should address it through the 3rd party vendor support structure Service Accuracy Calibration E Perform Service Accuracy calibration using HP High Gloss Photo Paper Do NOT use any other type of media apart from HP High Gloss Photo Paper when performing the Accuracy Calibration Print Modes The Printers have a large number of print modes A print mode specifies how to interpret and put on media a set of bitmap planes each of which consists of a sequence of rows Each mode corresponds to a unique combination of the following parameters m Print resolution 300 dpi 600 dpi 1200 x 600 addressable Number of passes per advance Number of advances per swath Print direction bidirectional Carriage speed Smart Area Fill SAF Print masks Servicing states Multiple dotting K User input to print mode selection consists of the following Choice of media type m Choice of print quality setting fast normal best m The language in which the
152. mmended action at a time and check if the error code has disappeared If you have an error code which is not documented in this Service Manual or you have an error which you cannot resolve then report the error to the HP Response Center or the nearest HP Support Office When reporting the error have the following information ready m Model and Serial Number of the printer m Which firmware revision the printer is using See Note below Check firmware in Utilities Statistics Code rev m The complete error number See Note below m The Service Configuration Print gt Page 1 19 m The Current configuration sheet m Which software application the customer is using name version etc NOTE When reporting the System Error Code make sure that you supply the full Error Code including the last 8 numbers where applicable and the firmware version Without this information HP Support Personnel cannot help you 1 2 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting NOTE NOTE Performing a Service Test on a Failed Assembly If possible always perform a Service Test on the component assembly that you are about to replace just to make sure that is the component assembly that has failed If the test on that component assembly passes you should NOT replace it For information on the Service Tests and how to use them see Chapter 4 Service Tests and Utilities Performing the Necessary S
153. n HP Support Personnel cannot help you 2 6 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action NOTE System Error Codes 01009X Continuable Error in Paper axis Motor Encoder Try the following m Check that the Paper Axis Motor cable is NOT broken or damaged m Check that the Paper Axis Motor cable is correctly connected m Replace the Paper Axis Motor Page 8 12 m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 02xxxx Non Continuable PostScript Firmware Error Power the Printer OFF and ON again to see if the System Error disappears If the Error Code reappears then report the error to the HP response Center or the nearest HP Support Office stating the following information Model and Serial Number of the printer Which firmware revision the printer is using See Note below Check firmware in Utilities Statistics Code rev The complete error number See Note below The Service Configuration Print Page 1 19 The Current configuration sheet Which software application the customer is using name version etc When reporting th
154. n gt Page 5 24 E Service Station Page 5 1 1 m Color to Color Calibration Page 5 16 HP DesignJets 1050C and 1055CM Printers Service Manual 8 63 Removal and Installation Paper Entry Assembly Refer to Figure 69 to Figure 71 Removal WARNING Switch off the printer and remove the power cord 1 1 Remove the following 1 Left Hand Cover see page 8 13 2 Left Hand Trim see page 8 18 3 Ink Supply System Assembly see page 8 19 4 Clutch Assembly and Miscellaneous Parts see page 8 21 2 Remove the T 15 screws item 2 securing the entry roller item 1 to the left hand chassis refer to Figure 69 Pull out the left side of the entry roller first and then remove completely C607423 Figure 69 Entry Roller 8 64 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 3 Remove the T 10 screw item 1 from the linkage rod item 2 and the pinch wheel cam item 3 refer to Figure 70 SJ A S A C607420c Kegoo oooh i Figure 70 Linkage Rod NOTE For steps 4 and 5 refer to Figure 71 4 Release the right side of the paper entry assembly item 1 from a retaining hole in the right hand side chassis 5 Remove the right side of the paper entry assembly item 1 first and then the left side C607424 Figure 71 Paper Entry Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 8 65 Removal and Installation
155. n the front panel scroll to the Printer Setup Options icon and press the Enter key Printer Setup Options 2 Once inside the Printer Setup Options menu use the Arrow keys to scroll to the Utilities menu display and press the Enter key EE Printer setup options Pen settings Back Device setup Utilities a ih Demos Image quality 4 ie Enter NOTE Make sure that you are in the Full menu mode Utilities Menu Full because otherwise you will not be able to access the Service Tools submenu Press Enter 3 Once inside the Utilities menu press the UP and Enter keys together You are now in the Service Tools Menu EE Utilities Display Contrast Back Contrast eee Recover Printheads T Press Calibrations T her Test Prints are oget Enter 4 Use the Arrow keys to scroll to the Service Utilities menu and press the Enter key Ee Top B Back EE m B t Service Tools Press Enter 4 26 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 5 Use the Arrow keys to scroll through the Service Utilities selections Service Utilities 1 Tubes Purge 6 Press the Enter key to begin a specific operation when the required Service Utility is highlighted NOTE If the printer is not used for 3 minutes the printer exits out of the Service Utilities Menu and you must repeat t
156. nd 1055CM Printers Service Manual Service Calibrations 3 If you selected to continue then the following message appears on the front panel if media is not loaded You must load Media in to the Printer to continue WARNING Do NOT use Clear Film Vellum or Natural Tracing Paper Please load paper to perform this operation and try again Press ENTER to continue Press Enter 4 The Printer will start to print the Alignment Pattern and the following message will be displayed on the front panel PRINTHEAD ACCESS Aligning printheads Approximate time remaining 6 min 30 sec 5 Once the Pen Alignment calibration is completed the following message will be displayed on the front panel EE caval E Bact Enter 6 If the calibration fails Perform the Electronic Systems Test gt Page 4 5 Press ENTER to continue Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 5 23 Service Calibrations NOTE Carriage Height Calibration The purpose of this Service Calibration is to adjust the distance between the Carriage Assembly and the Center Platen This calibration is necessary in order to prevent problems like Printhead crashes Perform the Carriage Height Calibration whenever m Carriage is disassembled or replaced m Center Platen is disassembled or replaced Continuous Printhead Crashes Perform the Carriage Height Calibration as follows The procedure should be c
157. nd Utilities 4 When the following message is displayed lift the window and remove ALL the Printheads from the carriage Install the Setup Printheads into the carriage INK STARTUP Lift window to install SETUP printheads 5 Once all the Setup Printheads are installed the following message will appear on the front panel Close the carriage cover and close the window INK STARTUP All SETUP printheads are OK Close cover and window to continue 6 The following messages will be displayed on the front panel while the printer accesses and then stores the printheads INK STARTUP INK STARTUP Accessing Printheads Storing Printheads 7 The printer will then begin to purge the tubes system INK STARTUP Initializing printer Please wait xx sec HP DesignJets 1050C and 1055CM Printers Service Manual 4 29 Service Tests and Utilities 8 Once the tubes system is purged the following message will be displayed Lift the window and remove ALL the Setup Printheads from the carriage and install the previously removed printing Printheads into the carriage INK STARTUP Lift window to replace SETUP printheads 9 Once all the Printheads are installed the following message will appear on the front panel Close the carriage cover and close the window INK STARTUP All printheads are OK Close cover and window to continue 10 Open the right cover and make sure the Printhead Cleaners are inst
158. nel you must select which Printer Model you would like to set Select either the HP DJ 1050C or the HP DJ 1055CM and press Enter Top B Back mt B Enter 3 The following message will appear asking you to confirm the selection Select ACCEPT if you want to set the Printer Model selected in the previous step or select CANCEL if you want to cancel the selection Press Enter once the selection has been made i Back mt i Enter PRINTER MODEL TYPE Select the Printer s Model HP DJ 1050C HP DJ 1055CM L Make Selection Press Enter PRINTER MODEL TYPE HP DJ 1050C Model Selected Make Selection ACCEPT Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 4 35 Service Tests and Utilities 4 Once the Model Type selection has been made the following message will be displayed on the front panel i Top B Back E a B Enter 5 Print the Service Configuration Print Page 7 19 and check if the Printer Model Type has been set correctly Printer model type selection done Press ENTER to continue Press Enter 4 36 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities NOTE WARNING 5 Overdrive Cleaning The purpose of this Service Utility is to rotate the Overdrive Drive Roller and Roller Mark in order to clean them REMOVE THE MEDIA BEFORE PERFORMING THIS OPERATI
159. ng Placing each print received by the device into memory for processing with other prints Glossary raster A method for defining an image in terms of dots rather than lines Raster data typically needs more memory than vector data RGB Red green and blue A standard color model RIP Raster Image Processor RTL Raster Transfer Language One of Hewlett Packard s standard graphics languages for plotters and printers Produces raster data ROM DIMM A physical module containing read only data that can be installed in the back of the printer to provide upgrades Scan axis The horizontal axis as you look at the printer from the front semi gloss photo A semi glossy opaque photographic paper spindle The rod which holds the roll of media G 3 Glossary G 4 Index A Accessories 7 34 Accuracy Calibration 5 6 Acoustic Specifications 10 14 Air Pressurization System 8 20 10 7 APS Assembly 7 14 B Back Cover 8 32 Banding 1 12 6 9 Baudrate Selection 4 42 Belt 8 44 Belt Swelling 9 2 C Calibrations Backup 5 19 Cam 8 73 Cap 10 10 Carriage Assembly 7 18 8 44 Carriage Height Calibration 5 24 Carriage Interconnect Wiper 3 18 Center Guide 7 30 8 71 Cleaning General 9 2 Overdrive 9 3 Printer 9 2 Clutch Assembly 7 16 8 21 Color Accuracy Configuration 6 23 Color changes when stacking 1 10 Index Color differences 1 11 Color to Color calibration 5 16 Cut Sheet 1 13 Cutter A
160. ng message will appear on the front panel HARD DISK DRIVE Running Hard Disk Drive Test 3 If the test passes then the following message will appear on the front panel HARD DISK DRIVE Tests passed Capacity 2067 KB PS font rev V_6 0A75 4 12 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities WARNING NOTE WARNING IF THIS TEST PASSES DO NOT REPLACE THE HARD DISK DRIVE If there is a problem with the Hard Disk Drive then the test will fail and the following message will appear on the front panel HARD DISK DRIVE Possible Failure on 1 HDD 2 Electronics Module Code 0OXXXX 0000XX Check that the Hard Disk Drive is actually installed before starting to troubleshoot If the Hard Disk Drive is NOT installed the test will of course always fail In this case to resolve the problem try the following Switch the printer OFF Remove the EIO Card if installed and reinstall the Hard Disk Drive making sure it installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened Switch the printer ON again and repeat the Hard Disk Drive Test If the Hard Disk Drive Test fails again then replace the Hard Disk Drive If the Hard Disk Drive Test passed after removing the EIO Card then switch the Printer OFF and reinstall the EIO Card making sure that the two installation screws are completely tightened Swi
161. ng the outer non metallic edge and gently pulling towards you Store these parts in a safe place With a flat end screwdriver unscrew the two screws that attach the EIO card item 5 to the Electronics Module Remove the EIO card and store in a safe place With a flat end screwdriver unscrew the two screws that attach the Hard Disk Drive item 6 to the Electronics Module Remove the Hard Disk Drive and store in a safe place Be very careful when disconnecting the Trailing Cable from the Electronics Module Incorrect handling will damage the Trailing Cable and then it will need replacing Disconnect the Trailing Cable by releasing it from retaining clips in the socket and carefully pulling it towards you Carefully disconnect all the cables from the left and right side of the electronics module HP DesignJets 1050C and 1055CM Printers Service Manual 8 25 Removal and Installation C607402 Figure 23 Electronics Module NOTE For the following steps refer to Figure 24 8 Remove two T 20 screws item 1 which can be found at both ends of the electronics module at the bottom 9 Loosen do not remove the two remaining T 20 screws item 2 and carefully remove the whole electronics module item 3 by sliding it up and pulling towards you C607403 Figure 24 Electronics Module 8 26 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation
162. not remove an IC or a printed circuit assembly PCA from its conductive foam pad or conductive packaging until you are ready to install it 4 Ground earth your body while disassembling and working on the Printer 5 After removing a cover from the Printer attach an earthing ground lead between the PCA common and earth ground Touch all tools to earth ground to remove static charges before using them on the Printer 6 After removing any PCA from the Printer place it on a conductive foam pad or into its conductive packaging to prevent ESD damage to any ICs on the PCA Required Tools The following tools are required to disassemble and repair the Printer EE Long Torx Screwdriver with the indicated attachments T8 T9 T10 T15 T20 TISL OO O O i Nut driver with the indicated attachments mg ad Loe 3 16 55 inch mm a Small flat blade screwdriver HP DesignJets 1050C and 1055CM Printers Service Manual 8 3 Removal and Installation Right Hand Cover NOTE WARNING NOTE NOTE Refer to Figure 1 Removal 1 Remove the Printhead Cleaners Refer to the User Guide Make sure that the Service Station Carriage is pushed to the back before trying to remove the Right Cover Switch off the printer and remove the power cable Remove the following 1 Electronics Module Left Rear Cover see page 8 24 Make sure you take care when removing the ferrite which is attached to the sideplate with
163. nstructions on Page 4 26 Make sure the printer is switched OFF from the power switch on the front of the printer and NOT from the power switch on the back of the printer Hold the COLOR key down and switch the printer ON using the front power switch Wait until the message Initializing is displayed on the front panel before releasing the COLOR key Once inside the Service Tests Menu use the Arrow keys to scroll through the Service Tests selections Service Tests 1 Electronic Systems 2 EIO Card 3 Hard Disk Drive 4 Ink Pressure System Press the Enter key to begin a specific test when the required Service Test is highlighted If the printer is not used for 3 minutes the printer hangs and you must repeat the above steps to enter the Service Mode again In some cases a quick press of a button may not be recognized by the Printer When pressing a button be sure to press it deliberately and all the way to the bottom of its travel If the Printer hangs up during a test switch the Printer OFF and restart from step 1 4 4 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities NOTE NOTE WARNING Tip for Repair 1 Electronic Systems The purpose of this test is to verify the operation of the m Electronics Module m DRAM m Trailing Cable m Carriage Assembly This test does not test the EIO Card or the Hard Disk Drive The Service Tests work in a special Mode
164. nt Please wait as the process of aligning the printheads takes a few minutes 4 Reprint the image you were attempting to print before in the same rinthead Alignment A N mode to see if the problem still exists 6 16 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality IMPORTANT NOTE Problems with Horizontal Lines Banding Description of problem When you look at the image you have printed there are light or dark lines on the image these are particularly highlighted in high density ink areas This problem is known as banding Banding can occur to a certain degree in draft and normal mode when printing high density prints To obtain the best image always print in Best Mode Shown below is an example of what you might see if you have problems with banding ie T Wl Wittens i 80 D _ Tr C6074306 How to solve the problem While performing the next procedure duplicate the condition the printer was in when you discovered the problem use the same media and the same print mode Ensure that the paper you have selected in the front panel is the same paper that you have loaded 2 Perform the Printhead Alignment Calibration Reprint your image 4 Ifyou have printed your image in Normal or Draft mode and it is not acceptable to you re print it in Best mode Check the front panel and driver selection to make sure that Best mode is selected HP DesignJets 105
165. nterface All NOTE There is a small serial port at the rear of the printer this is there for manufacturing purposes only and cannot be used to print HP DesignJets 1050C and 1055CM Printers Service Manual 10 17 Functional Overview Regulatory Notices Gerduschemission Germany FCC Statements U S A To Obtain a Material Safety Data Sheet MSDS You can obtain current Material Safety Data Sheets for the ink systems used in the printer by mailing a request to this address Hewlett Packard Customer Information Center 19310 Pruneridge Avenue Dept MSDS Cupertino CA 95014 U S A There is also a web page http www hp com abouthp envrnmnt contents envfacts hpmsds htm Sound LpA lt 70 dB am Arbeitsplatz im Normalbetrieb nach DIN 45635 T 19 Electro Magnetic Compatibility EMC The U S Federal Communications Commission in 47 cfr 15 105 has specified that the following notices be brought to the attention of users of this product Product Identification Numbers Printer DesignJet 1050C DesignJet 1055CM Model C6074A C6075A This device complies with part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Shielded cables Use of a shielded data cables is required to comply with the Class B limits of Part 15 of
166. nters Service Manual Index 5 Index Index 6 HP DesignJets 1050C and 1055CM Printers Service Manual About this Edition This is the 1st edition of this Service Manual 1st edition titled HP C6074A C6075A DesignJet 1050C and 1055CM Service Manual O HEWLETT PACKARD What s in this Service Manual This manual contains information necessary to test calibrate and service HP DesignJet 1050C model C6074A HP DesignJet 1055CM model C6075A For information about using these printers refer to the corresponding User and Quick Reference Guides The procedures described in this manual are to be performed by HP qualified Service Personnel only HP DesignJet 1050C 1055CM Large Format Printers
167. ntify the parts referred to in the text The procedures appear in order of removal So the whole machine can be stripped down by starting at the beginning of this chapter and working through the subsequent procedures Before using this chapter to remove and install a new component always make sure that you have performed the relevant service test from Chapter 4 If the test passes you will not need to replace the component Safety Precautions Safety symbols Immediately after the table of contents Review WARNING and CAUTION symbols and instructions before you service the printer Follow these warnings and cautions for your protection and to avoid damaging the printer Serious shock hazard leading to death or injury may result if you do not take the following precautions Ensure that the ac power outlet mains has a protective earth ground terminal Switch the plotter off and disconnect it from the power source prior to performing any maintenance Prevent water or other liquids from running onto electrical components or circuits or through openings in the module 8 2 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Electrostatic Discharge ESD Precautions To prevent damage to the Printer circuits from high voltage electrostatic discharge ESD 1 Do not wear clothing that is subject to static build up 2 Do not handle integrated circuits ICs in carpeted areas 3 Do
168. o Figure 20 Remove the two T 10 screws item 1 from the left roller gear item 2 attached to the left side of the roller Remove the two T 20 screws item 3 from the roller support item 4 and remove the support Release the tension from the torsion spring item 5 by removing the arm of the spring off the spring hook item 6 Remove the two T 15 screws item 7 from the pinch sensor bracket item 8 and remove the bracket with the sensor attached Release the sensor cable from retaining clips to remove completely Remove the spring hook T 15 item 6 These items do not need to be removed when removing the Paper Entry Assembly or the Center Guide C607420b Figure 20 Miscellaneous Parts 8 22 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Tail Deflectors and Rear Platen Refer to Figure 21 Removal WARNING Switch off the printer and remove the power cord 1 Remove the three Deflectors item 1 by unclipping them from the Rear Platen Item 3 2 Remove two T 10 screws item 2 on the left and right of the Rear Platen item 3 and remove the platen TT Re SSS Fo oN 2 ss 7 C607401 Figure 21 Tail Deflectors and Rear Platen HP DesignJets 1050C and 1055CM Printers Service Manual 8 23 Removal and Installation Left and Right Rear Covers Refer to Figure 22 Removal WARNING Switch of
169. o Figure 32 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Left Hand Cover see page 8 13 2 Right Hand Cover see page 8 4 3 Back Cover see page 8 32 CAUTION To prevent damage to the encoder strip hold it at the ends only NOTE Working from the rear of the printer NOTE For steps 2 and 3 refer to Figure 30 2 Remove five 7mm nuts item 1 from the EMC Cover item 2 3 Remove two T 15 screws item 3 from the EMC Cover and remove the plate C607409 Figure 30 Encoder Strip 8 34 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation NOTE For steps 4 and 5 refer to Figure 31 4 Remove the 5 5mm nut item 1 from the left side of the Printer that attaches the Encoder Strip item 3 to Spring Clip item 2 NOTE To perform the next step use a screw driver to press the spring clip item 2 in towards the middle of the printer 5 Release the Encoder Strip item 3 from the retaining pin item 4 on the Spring Clip item 2 Figure 31 Encoder Strip HP DesignJets 1050C and 1055CM Printers Service Manual 8 35 Removal and Installation NOTE For the following steps refer to Figure 32 6 Remove the 5 5mm nut item 1 from the right side of the printer securing the encoder strip item 2 7 Remove the encoder strip from retaining pins item 3 on the right side of the Printer Chassis 8 Remove the en
170. o No Yes No No Yes disassembled or replaced Service Station is No No Yes No No Yes No No No disassembled or replaced Drive Roller is Yes No No No No Yes No No No disassembled or replaced Tubes System SRK is No No No No No No Yes Yes No disassembled or replaced Banding Problem Yes Yes No No No No No Yes No Misalignment between No Yes No No No Yes No Yes No Colors Color Accuracy Problem No No No No No No No No No Edge Detect Problems No Yes No No No No No No No NOTE Refer to the following page for the relevant Calibration 5 2 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations Service Calibrations The following is a list of all internal service calibrations available in the Printers Instructions for entering the service calibrations menu are given on Page 5 4 1 Accuracy Calibration Page 5 6 The purpose of this Service Calibration is to calibrate the nominal advance of the media This calibration is necessary to control the exact movement of the media in order to avoid print quality problems like banding 2 Line Sensor Page 5 9 The purpose of this Service Calibration is to calibrate the intensity of the line sensor in the Carriage PCA An incorrect calibration can result in edge detection failures during media loading and incorrect reading of prints that are used for alignment or calibration 3 Service Station Page 5 11 The purpose of th
171. oblems Detecting Media 1 6 Troubleshooting Media Jams Printhead Crashes 1 7 Troubleshooting Shutdowns_ 1 7 Problems with the Vacuum Fan 1 9 Vacuum suction much lower at high altitudes 1 9 Bin marks on prints done on HP High Gloss media 1 9 Printhead Crashes Smears on High Density Prints Using Coated Media 1 10 Color changes when stacking prints done on HP High Gloss Media 1 10 HP GL 2 color differences in different HP DesignJet Printers 1 11 Scratches on prints done on NTP Vellum and HP High Gloss media 1 11 Banding at variable extreme environmental conditions 1 12 Banding due to Ink Cartridge replacement while printing 1 12 Long term bleed and hue shift on HP High Gloss media 1 12 Lower image gloss directly after printing on HP High Gloss Photo Paper 1 13 Cut Sheet rice paper loading failure 1 13 34 Rice Paper not supported 1 13 Worm marks on HP Coated media with light area fills 1 13 Solving Media Handling Problems 1 14 How to Navigate through the Front Panel Menu 1 15 Service Configuration Print 1 19 HP DesignJets 1050C and 1055CM Printers Service Manual 1 1 Troubleshooting Guide to Troubleshooting the Printer Introduction This chapter will guide you through the relevant steps to take when troubleshooting the printer Troubleshooting System Error Codes Chapter 2 System Error Codes contains a list of system error codes and their respective descriptions and recommended corrective actions Only try one reco
172. oklet prepared by the FCC How to Identify and Resolve Radio TV Interference Problems This booklet is available from the US Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 HP DesignJets 1050C and 1055CM Printers Service Manual 10 19 Functional Overview When connected to LAN cables using print server accessories Normes de s curit Canada DOC statement Canada This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de Classe B prescrites dans le r glement sur le brouillage radio lectrique dict par le Minist re des Communications du Canada Connect un r seau par des accessoires de serveur l appareil n met pas de bruits radio lectriques d passant les limites applicables au
173. olumns only but more evident in cyan This means that the cyan printhead could be permanently damaged m Banding in magenta red and blue columns only but more evident in magenta This means that the magenta printhead could be permanently damaged m Banding in yellow red and green columns only but more m Banding in black column only This means that the black printhead could be permanently damaged b Ifyou want optimal print quality from your printer replace the damaged printhead with a new one However the printer can still produce good quality line prints 6 20 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality No Printing Defects Found in the Print Quality Test If all the test patterns from the Print Quality Test are correct and you still experience print quality problems here are some of the more likely causes to check m The print mode used in your printer is not right for the image you are printing this is defined by the printer s front panel menu selections Non HP driver m The RIP If you are using one m The software applications you are using Use the following table to configure your system correctly What to Configure Configuration Setting Optimal Setting Printer Front Panel Menu Media Unload the current media and load it again after changing the media type in the front panel Dry time Set to Automatic driver Windows set to Best AutoCAD or Mac HP DesignJe
174. on in relation to the Carriage Assembly Perform the Service Station Calibration whenever m Carriage Assembly is disassembled or replaced m Platen Assembly is disassembled or replaced m Service Station is disassembled or replaced Perform the Service Station Calibration as follows NOTE Make sure you load media bigger than A4 in to the Printer before performing this calibration Do NOT use any other type of media apart from HP Coated or HP High Gloss Photo Paper 1 In the Service Calibrations submenu scroll to 3 Service Station and press Enter EE E 3 Service LJ T 4 Roller mark pos C L 5 Pen to Pape r EE e Service Calibrations I Make Selection Press Enter 2 The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Service Station Calibration or select CANCEL if you want to cancel the it Press Enter once the selection has been made Top B Back mt B Enter 3 Service Station Make Selection Accept Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 5 11 Service Calibrations 3 If you selected to continue then the following message appears on the front panel if media is not loaded You must load Media in to the Printer to continue B wp B Back at B enter 4 The Printer will start to print the calibration pattern and the following messages will be displayed on the fr
175. ont panel Please load paper to perform this operation and try again Press ENTER to continue Press Enter Performing service position calibration Please wait Performing primer calibration Please wait Performing drop detector calibration Please wait Performing platen distance calibration Please wait 5 Once the service station calibration is completed the following message will be displayed on the front panel B wm B Back m B enter 6 To check if the Calibration was completed correctly print the Service Configuration Print see Page 7 79 and check that the calibrations are done and are within the stated limits Service station calibration finished Press ENTER to continue Press Enter Check that the Calibrations are done and within the limits EF EE 5 12 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 4 Roller Mark Position The purpose of this Service Calibration is to calibrate the Mark Encoder which is located on the Drive Roller Perform the Roller Mark Position Calibration whenever m Carriage is disassembled or replaced Perform the Roller Mark Position Calibration as follows NOTE Make sure that you unload the media from the Printer before performing this calibration 1 In the Service Calibrations submenu scroll to 4 Roller mark position and press Enter a Top Ee Back
176. or the Tubes System has been replaced WARNING ALWAYS PERFORM THE CALIBRATIONS BACKUP AFTER REPLACING THE ELECTRONICS MODULE OR THE TUBES SYSTEM Perform the Calibrations Backup as follows 1 In the Service Utilities submenu scroll to 7 Calibrations Backup and press Enter Service Calibrations L Make Selection Press Enter Enter 2 When the following message appears on the front panel you must select which component you have replaced Select either the Electronics Module or Tubes System and press Enter Top B Back mt B Enter If the Electronics Module was replaced CALIBRATIONS BACKUP What have you replaced L Make Selection Electronics Module rep Tubes replaced Press Enter a Ifthe Electronics Module was replaced then select Electronics Module and press Enter CALIBRATIONS BACKUP What have you replaced Electronics Module rep P il Make Selection Tubes replaced gt Enter b The following message will appear asking you to confirm the operation Select ACCEPT if you want to continue the Calibrations Backup or select Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 5 19 Service Calibrations CANCEL if you want to cancel the Calibrations Backup Press Enter once the selection has been made CALIBRATIONS BACKUP Electronics Module has been replaced ACCEPT CANCEL L Make Selection Press Enter
177. ot touch wipe or attempt to clean the printhead nozzles This can damage the printhead C6074297a Handle the HP No 80 supplies with care In particular the printhead which is a high precision device and must be handled carefully Do not touch the printhead nozzles Do not put the printhead down on the nozzles Do not be rough when handling the printheads Always set them down gently Do not drop the printheads Proper handling will assure optimum performance throughout the printhead life The printhead cleaner should always be handled and stored upright to avoid a potential spillage of ink Do not touch the end of the ink cartridge which is inserted into the printer as there may be a small amount of ink on the connection Avoid storing partially used ink cartridges on their ends HP DesignJets 1050C and 1055CM Printers Service Manual 3 5 HP No 80 Ink Supplies Troubleshooting CAUTION Priming the Ink System When the customer first receives the printer it is supplied with a set of four setup printheads pre installed in the printhead carriage These setup printheads are used for the priming of the tubes in the modular ink delivery system The customer must not remove the setup printheads from the carriage without following the procedures in the Setup Guide When the Printer is powered ON for the first time the printer will automatically perform the priming process Without the priming process the customer wi
178. ove over the media the printheads and the media come into contact with each other and the printed image is smeared Press the Cancel key on the front panel if you continue to print the paper may damage the printheads Cancel the print job from your computer application In order to obtain better results perform the following m Use HP recommended media If the image you are printing has intense color use HP Heavy Coated Paper m Use extended margins or try to increase the print margins by relocating the image on the page from the software application m If the customer is using Media Saving Options from the advanced section of the HP GL 2 Driver try disabling one or both of the options auto rotate and inked area If the above fails to solve the problem of smears and scratching change the media that the customer is using to a non paper based media such as HP High Gloss Photo Paper 6 24 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Printer Support 7 2 Rear Covers 7 4 Electronics Module 7 6 Right Hand Cover 7 8 Left Hand Cover and Window 7 10 Right Hand Assemblies 7 12 ISS and APS Assembly 7 14 Clutch Assembly 7 16 Carriage Assembly 7 18 Scan Axis Assemblies 7 20 Drive Roller and ARSS Miscellaneous Parts 7 22 Paper Path Assemblies 7 24 Pinch Assembly 7 26 Drive Roller Assemblies 7 28 Center Guide and Media Sensor 7 30 Tubes Guide Assemblies 7 32 Ordering Acce
179. position SERVICE STATION Disconnect the window switch and right door switch cables from the service station cable 5 Unclip the Scan Axis Motor cable from the Service Station 6 Manually slide the carriage assembly to the middle of the printer Be careful not to drop the service station item 2 once the securing fasteners have been removed Support the service station throughout the following steps Between the carriage assembly slider rods there are two holes These holes give you access to two T 15 screws item 3 Remove the two T 15 screws Loosen the T 15 screw item 1 securing the service station to the side of the printer This screw is long and does NOT need to be fully loosened When removing the Service Station make sure that you release the Paper axis Motor cable from the clip that is located on the Service Station Lift the service station item 2 off the loosened screw item 1 and standing in front of the printer slide the assembly towards you 8 8 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 2 Figure 4 Service Station Assembly NOTE You must perform the following Service Calibrations after the installation of the Service Station Assembly Em Service Station Page 5 m Color to Color Calibration Page 5 16 HP DesignJets 1050C and 1055CM Printers Service Manual 8 9 Removal and Installation Drop Detector Assembly Ref
180. r Ensure that the printhead cleaner is the correct color for that slot 3 Ensure that the printhead cleaner is the correct orientation HP DesignJets 1050C and 1055CM Printers Service Manual 3 17 HP No 80 Ink Supplies Troubleshooting NOTE NOTE Carriage Interconnect Wiper When you order the Carriage Assembly the Carriage Interconnect Wiper will come with it All the instructions needed to use the Carriage Interconnect Wiper will be packaged with the part Whenever you replace the printhead check the empty slots to see if they need cleaning In extreme circumstances when a printhead is inserted it is possible that the printer will not recognize it due to the build up of ink on the electrical connection between the printhead and the printhead carriage Included with the HP DesignJet Printer is a Carriage Interconnect Wiper This tool is provided in a separate package It also contains replacement sponges and an instruction sheet This tool should be used for cleaning the electrical interconnects of both the printhead carriage and the printhead If the front panel displays the message Reseat or possibly Failed next to the offending printhead try cleaning the flex circuits of the carriage and the Printheads Do not touch wipe or attempt to clean the printhead nozzles This can damage the printhead and reduce print quality 3 18 HP DesignJets 1050C and 1055CM Printers Service Manual Service T
181. re hagni Takes Wan Pie Fi k ia ob ra Biasa qiatas SN tel Ba on Pea i faie Sar Eoin Ea giia pie aren a Hak Line wit na Ve pihan D B Tah in erre a per BELTI Teles iyu RFE H ribara k F a fake of iba Ear diarra dite Bo pnineinas pana gt ed ie ay 4 H Er pasi C riridgs mig cpa Leela Sabon inar i da oe m Part maam piap CHETA gie ps ie ai e oe te a a Prd Game n Darsa F Gemas ie Dera iF a E i Bai im E i Es PE F ma g Fi ii Ea EEEE i Gpersiing cancitians t ite i pate Cr Miraa Aem pe i mshi Be ea pimi Maran mera mi pja mia Calibrators SCOR Hee Ts wim dee IF Asim eet hidl oe ita Ba a Warm oars LHS Mae phase UHI Achr mae E hag PLATTEN Ge Lrj Whe LEHO wettest opters ie Ro al H az fe aia eee tage Fave LE J e FCA fem cee GAF STESI h kaarai E mmh a a Cyan 1 iugesta SAn S20 EEI la a im PANER Bed papkani p Pipa LA 70 8 eis ikma lei FF Maintangtice bn yi ist trier af Gamp n Fetal spear Ln cpl Eg ETTEM tbe ria Mogae 2a Drea n aes ea On frie marth x pateret Simios fiim rbs nop m0201 Ha foo 1 7 Gece er a Fibp tslttint siss CH Cem barda TaT Dear sin an F ire o ais 7 Ruste arta L Cee ma TAI m Er Her mi otliguratieanr AIAT ae Pieper Sa Re Pejt rei iS icia ETATINTICA FERMA H Priis ites i crf maT anepo Reni iy F ate Eran rea a DIS DO4MECT T a te a Trait Te TE miMa ac TAE Omi Ca Lince a a ar l gel ie Te a CAAIBA ce LATE QOLL 18104 PPE TH
182. ridge Ink Cartridges The HP No 80 ink cartridges for the HP DesignJet 1050C and 1055CM printers require no maintenance or cleaning As long as each ink cartridge is inserted correctly into its slot the ink will flow to the printheads The front panel displays the status of the Ink Cartridge With the front panel detailed information can be checked on the Ink Cartridges Printheads and Printhead Cleaners The HP No 80 printheads are extremely durable and do not need to be replaced every time an ink cartridge is replaced They are independent of the ink cartridges and will continue giving excellent image quality results even if the ink cartridges are low on ink See page 3 6 When Should You Replace the HP No 80 Supplies If you notice a decline in print quality such as lines or dots missing from text graphics go to page 6 13 Troubleshooting Print Quality Problems 3 2 HP DesignJets 1050C and 1055CM Printers Service Manual HP No 80 Ink Supplies Troubleshooting The HP No 80 printhead cleaners keep the printheads in good condition and they prevent them from being damaged when the printer is not active They service the printhead making sure it s always ready to be used Identifying the Components The following illustration will help you identify the components of the HP No 80 supplies Printhead Ink Cartridge C6074074 HP DesignJets 1050C and 1055CM Printers Service Manual 3 3 HP No 80 Ink Suppli
183. rinter Non HP drivers Media or equivalent setting W Set to match the media Software RIPS type loaded in the printer See the documentation that came with your software for information Color correction option or amp Do the color correction equivalent calibration if one is available HP DesignJets 1050C and 1055CM Printers Service Manual 6 23 Print Quality NOTE Media Always make sure that the customer is using the appropriate media for the required image and that it is consistent with the software application being used To ensure color accuracy and print quality performance of the printer only media types that have been certified for the printer should be used Use of non HP media or HP media not certified for the printer may significantly reduce the color and print quality of the required images For details of HP media refer to the User s Guide or the Media Guide for the HP Designjet Printers To have accurate colors the media settings must match the type of media loaded in the printer If the customer is using non HP media with HP drivers the colors in the required print may not be accurate Advise the customer to use HP media if they want to improve the accuracy of the colors There are Smears or Scratching on the Printed Media This problem can appear on paper based coated media if a lot of ink printed quickly The media cannot absorb the ink quickly enough and becomes distorted As the printheads m
184. roblems with the Vacuum Fan If you have problems loading either Roll or Sheet Media then there could be a problem with the Vacuum Fan To verify if there really is a problem with the Vacuum Fan try the following 1 With the Printer ON open the Window of the Printer and place a sheet of HP High Gloss Photo Paper must be D Size aligned with the blue lines on the Center Platen If the Vacuum Fan holds the sheet in place and then loads it correctly then the Vacuum Fan functions correctly If the Vacuum Fan does not hold the sheet in place no suction then try the following m Check that the holes in the Center Platen are NOT blocked m Check that the Vacuum Fan is installed correctly m Replace the Vacuum Fan Page 8 11 2 Ifthe Vacuum Fan held the sheet in place but couldn t correctly load it then there could be a problem with the Overdrive In this case replace the Platen Assembly Page 8 63 Vacuum suction much lower at high altitudes At altitudes above 3 000 meters the vacuum force holding down the media will be lower therefore the media will not be held in place properly causing m Ink Smearing on the Media m Printhead crashes against the Media Cut Sheet loading problems high probability m Roll Media loading problems low probability PRINTER LIMITATION NO SOLUTION AVAILABLE Bin marks on prints done on HP High Gloss media Prints done on HP High Gloss media are sensitive to scratches when the
185. rrectly making sure that the two installation screws are completely tightened If the Printer DOES NOT function correctly with the Hard Disk Drive and the Network Card removed then you must replace the Electronics Module d Switch the Printer ON again e Ifthe Printer functions correctly with the Network Card installed switch the Printer OFF again If the Printer DOES NOT function correctly with the Network Card installed then you must replace it f Reinstall the Hard Disk Drive correctly making sure that the two installation screws are completely tightened g Switch the Printer ON again h Check if the Printer functions correctly with the Hard Disk Drive installed If the Printer DOES NOT function correctly with the Hard Disk Drive installed then you must replace it Make sure that none of the cables connected to the Electronics Module have been pinched between the cover and the sideplate 1 4 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting The Printer does not Power ON 1 Check that the power cord is connected correctly to the Printer and to the Power Socket 2 Check that the Firmware DIMM is installed correctly in the correct slot the first slot from the right at the back of the Printer 3 Check that the Power Switch on the BACK of the Printer is in the ON position 4 Check that the Front Panel Cable is correctly connected to the Electronics Module Also make sure that the Front
186. s Clean the Overdrive using the Overdrive Cleaning Service Utility Page 4 37 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting How to Navigate through the Front Panel Menu 30 2 z 2 E T 3 5 5 amp 5 i a g o E 2 ie Zz z 2 2 3 op S bh amp a a z 2 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting 1 0 255 2s 0 13 mm 12 0 mm Width Color 1 1 Pen Number 0 Pen Number 0 15 Palette A Palette B Factory Off On Define palette Merging 1 16 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting ww og ww o mosun O I peo PS apiny dnjag I 99S nus panqof A poourapy uoneIngiyuop peg WONN ssappy MH ss aIppy dI yle1elddy oweN SNA I WONN dnjag O I unuwrxew pozrwydo Aoeinsoy ed eloadg eunoN yenueyy OUON onewomy own Surkiq onewoiny 4di
187. s and Diagrams Figure 14 Paper Path Assemblies HP DesignJets 1050C and 1055CM Printers Service Manual 7 25 Parts and Diagrams Pinch Assembly C6072 60009 1 Pinch Assembly 2 0515 2981 1 Cam Lever Screw 7 26 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 15 Pinch Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 7 27 Parts and Diagrams Drive Roller Assemblies C6072 60191 1 Drive Roller Assembly C6072 60163 1 Drive Roller Guide Includes Item 4 3 0515 2982 3 Screw for Right Hand attachment of Drive Roller Guide 0515 2986 3 Screw for Left Hand Attachment of Drive Roller Guide C6072 60011 1 Media Guide Strip 5 0624 0704 3 Screw 7 28 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 16 Drive Roller Assemblies 7 29 HP DesignJets 1050C and 1055CM Printers Parts and Diagrams Center Guide and Media Sensor C6072 60189 1 Center Guide Includes Item 3 0515 2986 4 Screw 3 C6072 60190 1 Media Sensor 7 30 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Ee fe BEKO JY As Figure 17 Center Guide and Media Sensor HP DesignJets 1050C and 1055CM Printers Service Manual 7 31 Parts and Diagrams Tubes
188. s in the Carriage PCA item 4 8 Remove the trailing cable item 3 from the trailing cable holder item 5 Figure 43 Carriage Assembly and Belt 8 46 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation 9 To release the tension on the belt item 1 from the left hand side of the Printer squeeze the spring item 2 using the tensioner wedge clip item 3 until you hear it click into place refer to Figure 44 NA BO C607415 Figure 44 Carriage Assembly and Belt 10 Remove the belt item 1 from the belt motor pulley item 2 on the right hand side of the Printer refer to Figure 45 N Figure 45 Carriage Assembly and Belt HP DesignJets 1050C and 1055CM Printers Service Manual 8 47 Removal and Installation NOTE For steps 11 and 12 refer to Figure 46 11 Remove the 5 5mm nut item 1 from the left side of the Printer that attaches the Encoder Strip item 3 to Spring Clip item 2 NOTE To perform the next step use a screw driver to press the spring clip item 2 in towards the middle of the printer 12 Release the Encoder Strip item 3 from the retaining pin item 4 on the Spring Clip item 2 gt BASAS a K io a go gt T PAA Figure 46 Encoder Strip 8 48 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation For steps 13 to 15 refer to Figure 47 NOTE 13 Remove the tensioner pulley item 1 from the b
189. s of your HP No 80 supplies There are two different screens m One screen displays information on the ink cartridges Printer Status Ink Cartridge Status m The other screen displays information on the printheads and the printhead cleaners Printer Status ue i Monitor Quality CYAN Monitor o MAGENTA OK Printhead Status YELLOW O BLACK 0 E During normal operation the front panel displays the ink levels however if there is a printhead status message such as monitor for example see page 3 13 Printhead Status Messages While Printing the printhead message will take precedence This is the case until you replace the printhead If you need to see the ink levels when they are not being displayed you can use the ink systems menu to check them HP DesignJets 1050C and 1055CM Printers Service Manual 3 7 HP No 80 Ink Supplies Troubleshooting Obtaining Ink Cartridge Information 1 To get information on the ink cartridges press the Top key on the front panel to go to the main menu 2 Press the T or J key until the front panel displays the ink system menu Press Enter 3 Press the T or J key until the front panel highlights Ink Cartridge info Press the Enter key Ink System options Replace printhead Replace Ink cartridge Ink cartridge info Printhead info 4 Press the T or J key until the front panel highlights the color that you want to see information on Press th
190. sed screws easy to find and disassembly done using universal tools Environmental Specifications Operating Range Printing 15 C to 35 C 59 F to 95 F RH 20 to 80 Optimal print quality 22 C to 26 C 72 F to 79 F RH 30 to 60 Acceptable print quality 15 C to 30 C 59 F to 86 F RH 20 to 80 Non Operating Printer 40 C to 70 C 40 F to 158 F Ranges Packed consumables and 40 C to 60 C 40 F to 140 F system NOTE If the printer temperature falls below its minimum operating temperature it may stop to protect its ink systems NOTE At 3000m altitude the printer may have operational problems Acoustic Specifications Operating sound pressure 54 dB From a one meter bystander position Idle sound pressure lt 30dB A From a one meter bystander position Operating sound power 6 5 Bels A Idle sound power lt 4 3 Bels A 10 14 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview EMC ElectroMagnetic Compatibility Specifications Canada Canadian Department of Communications Radio Interference Regulations Class B compliant European Union 89 336 EEC EMC Directive compliant Meets EN 55022 Class B emission limits prEN 55024 2 ESD prEN55024 3 Radiated Immunity prEN 55024 4 Fast Transients Japan Registered VCCI Class B Korea RRL certified Sout
191. signJets 1050C and 1055CM Printers Service Manual 7 35 Parts and Diagrams 7 36 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Right Hand Cover 8 4 Front Panel Assembly 8 6 Right Hand Trim and Window Switch 8 7 Service Station Assembly 8 8 Drop Detector Assembly 8 10 Vacuum Fan 8 11 Paper axis Motor Assembly 8 12 Left Hand Cover 8 13 Left Hand Trim Assembly 8 18 Ink Supply Station Assembly ISS 8 19 Air Pressurization System APS 8 20 Clutch Assembly and left hand miscellaneous parts 8 21 Tail Deflectors and Rear Platen 8 23 Left and Right Rear Covers 8 24 Electronics Module 8 25 Media Sensor 8 29 Window 8 30 Top Cover 8 31 Back Cover 8 32 Scan axis Motor Assembly 8 33 Encoder Strip 8 34 Tensioner 8 37 Trailing Cable 8 39 Cutter Assembly 8 42 Carriage Assembly and Belt 8 44 Tubes System Assembly 8 53 Ink Leak Detector Assembly 8 60 Front Platen Assembly 8 62 Platen Assembly 8 63 Paper Entry Assembly 8 64 Roller Guide 8 66 Media Holder Strip 8 69 Drive Roller 8 70 Center Guide 8 71 Pinch Wheel Assembly and Cam 8 73 HP DesignJets 1050C and 1055CM Printers Service Manual 8 1 Removal and Installation NOTE WARNING Introduction This chapter is a step by step guide to the removal and installation of the key components in the printer You may find it useful to tick off the steps as they are performed Use the illustration at each procedure to ide
192. solution if necessary Do not use abrasive cleaners 3 Wipe the Printer dry with a soft lint free cloth 9 2 HP DesignJets 1050C and 1055CM Printers Service Manual Preventive Maintenance NOTE WARNING Cleaning the Overdrive If ink is spilled on the Overdrive remove the ink Due to the ink s reflectance ink on the Overdrive can disrupt the Printer s edge sensing function To remove any ink from the Overdrive perform the following procedure Prevent water or other liquids from running onto electrical components or circuits or through openings in the module 1 Perform the Overdrive Cleaning Utility Page 4 37 Open the window and apply any common household cleaning solution water based only to a soft lint free rag and apply it to the Overdrive surface while it is rotating Thoroughly clean the Overdrive surface Also make sure that you clean the mark encoder on the left side of the driver roller 3 Press Enter when you have completed the cleaning procedure 4 Allow the Overdrive to dry before loading media in the Printer Scheduled Maintenance In some segments of the printer market the customer tends to print more than the maximum number of prints that the throughput allows exceeding by far the limit of the design When this happens the customer runs into print quality problems and continuous Printer failures The purpose of scheduled preventive maintenance is to avoid these failures ensuring a good
193. ssembly 8 42 D Declaration of Conformity 10 22 Drive Roller 7 28 8 70 Drop Detector 8 10 Drop Detector Service Test 4 22 E Ecological Specifications 10 14 EEROM Utilities 4 38 EIO Card Service Test 4 10 Electrical System 10 2 Electro Magnetic Compatibility 10 18 Electronic Systems Service Test 4 5 Electronics Module 7 6 8 25 EMC Specifications 10 15 Encoder Strip 8 34 Environmental Specifications 10 14 F Front Panel 8 6 10 4 Front Panel Display 3 7 Front Platen Assembly 8 62 Front Panel Menu 1 15 HP DesignJets 1050C and 1055CM Printers Service Manual Index 1 Index Functional Overview Air Pressurization System 10 7 Electrical System 10 2 Ink Level Sense 10 7 Ink Supply Station 10 5 Leak Detect System 10 8 Power Supply Unit 10 3 Print Head Cleaner 10 9 Service Station 10 9 Soft Power Off Switch 10 4 Tubes System 10 6 Functional Specifications 10 12 H Hard Disk Drive Service Test 4 12 HP DesignJet Online 10 23 HP No 80 Supplies 3 2 General Information 3 4 HP No 80 Supplies 3 5 replacing 3 6 solving problems 3 17 Hue shift 1 12 I Ink Cartridge Status Messages Empty 3 11 Faulty 3 12 Low 3 11 Reseat 3 12 Status bars 3 11 Unknown 3 12 Very Low 3 11 Wrong Model 3 12 Ink Cartridges 3 2 obtaining information 3 8 Ink Delivery System 10 5 Ink Leak Detector 8 60 Ink Level Sense 10 7 Ink Pressure System Service Test 4 14 Ink Supply Station 8 19 10 5 Installing Air Pressurization System
194. ssories 7 34 HP DesignJets 1050C and 1055CM Printers Service Manual 7 1 Parts and Diagrams Printer Support C6072 60185 1 Tray Assembly 2 C6071 60182 Foot Assembly 3 C6072 60184 Legs Assembly 4 C6071 60181 Bin Assembly 5 X Brace Assembly C6071 60180 Hardware Kit Includes Screw Drivers C6072 60017 N N Bin Cover Assembly 7 2 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 3 Printer Support HP DesignJets 1050C and 1055CM Printers Service Manual 7 3 Parts and Diagrams Rear Covers Printer Support Reference HP Part Number Quantity Description Comments on Drawing 1 C6072 60168 1 Top Cover 2 0515 0382 5 Screw 3 0515 4228 1 Screw 4 C6072 60169 1 Back Cover Includes Blank Serial Number Label 5 C2847 20017 3 Screw 6 2190 0760 3 Washer 7 C6072 60186 1 Rear Platen 8 0624 0771 2 Screw 9 C6071 60148 3 Tail Deflectors 10 C6072 60170 1 Back EMC Cover 11 0535 0043 5 Nut 12 0515 2278 2 Screw 13 C6072 60188 1 Mount Bracket Includes Left and Right Mount Bracket 14 0624 0771 4 Screw 7 4 HP DesignJets 1050C and 1055CM Printers Service Manual Parts and Diagrams Figure 4 Rear Covers HP DesignJets 1050C and 1055CM Printers Service Manual 7 5 Parts and Diagrams Electronics Module
195. t Length Depth Height E size printer 81 kg with stand 59 kg without stand 1566mm 675mm 1290mm Memory Specifications Memory Up to 128 Mbyte DRAM 2 x 64 Mb DIMMs 2 0 Gb Hard Disk As standard in the 1055CM Printer Power Specifications Source 100 240 V ac 10 autoranging Frequency 50 60 Hz Current 3 amp maximum Consumption 200 watts maximum Energy Star Maximum power in idle state 45 watts rating USA HP DesignJets 1050C and 1055CM Printers Service Manual 10 13 Functional Overview Ecological Specifications Energy efficiency Compliant with Energy Star Program EPA US Manufacturing Free of ozone depleting chemicals Montreal Protocol process Plastics Free of brominated flame retardants PBB and PBDE All housing parts made of the same material ABS Parts marked according to ISO 11469 standard Metals Enclosures made of electro galvanized steel sheet Packaging Cardboard non chlorine bleached and foam are 100 recyclable Inks used for printing do not contain heavy metals User Documentation Majority can be recycled not bleached with chlorine and printed with inks that do not contain heavy metals For specification of this User s Guide see the back cover Batteries Not used Recyclablility Modular construction connecting elements snap type can be re u
196. t 2500CP Non HP drivers The settings available In the software application Software RIPs depend on the driver The gy set Print Quality to Best most typical settings are E Use no Half Tone or E Print Quality Settings printer default E Half Tone E Make sure that the E Media selection media setting matches See the user s guide for the media loaded in the your application for more printer information about its print quality settings HP DesignJets 1050C and 1055CM Printers Service Manual 6 21 Print Quality Solving Color Accuracy problems These are two areas you should review when troubleshooting a color accuracy problem Configuration PostScript option only Check that you are using the correct driver setting and CRD information for the software Check which ink emulation mode has been selected in the front panel Media Make sure that the media loaded is genuine HP media and that the correct media type has been selected on the front panel and in the driver Color Consistency problems m If color consistency is important for the customer it is recommended that they do not use HP GL 2 to print with m Some media may discolor or change with age Check that the media is fresh and has been stored correctly m If the environmental conditions that the customer is printing in change rapidly you may see changes in the color consistency By reducing the time the print stays in extreme environmental con
197. t the above steps to enter Service Calibrations again NOTE In some cases a quick press of a button may not be recognized by the Printer When pressing a button be sure to press it deliberately and all the way to the bottom of its travel NOTE If the Printer hangs up during an operation switch the Printer OFF and restart from step 1 HP DesignJets 1050C and 1055CM Printers Service Manual 5 5 Service Calibrations 1 Accuracy Calibration The purpose of this Service Calibration is to calibrate the nominal advance of the media This calibration is necessary to control the exact movement of the media in order to avoid print quality problems like banding Perform the Service Accuracy Calibration whenever m Banding is detected in prints m Drive Roller is disassembled or replaced m Paper axis Assembly is disassembled or replaced Perform the Accuracy Calibration as follows NOTE Make sure you load HP High Gloss Photo Paper in to the Printer before performing this calibration Do NOT use any other type of media apart from HP High Gloss Photo Paper 1 In the Service Calibrations submenu scroll to 1 Accuracy cal and press Enter i Service Calibrations Back Fa BE Make Selection B Enter Press Enter 2 When the following message appears on the front panel select Create Pattern and press Enter EE Recalibrate L Back mt Make Selection Create Pattern B Enter Press Ent
198. tallation NOTE You must perform the following Service Calibration and Utility after the installation of the Electronics Module m Set Asian PS Fonts only in Asia gt Page 4 33 m Calibrations Backup Page 5 9 amp Pen Alignment Page 5 22 8 28 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Media Sensor Removal WARNING Switch off the printer and remove the power cord 1 Remove the following I Center Guide see page 8 71 2 Carefully remove the media sensor item 2 from underneath the center guide item 1 refer to Figure 25 Figure 25 Media Sensor NOTE You may also be able to remove the Media Sensor as follows 1 Remove the following 1 Electronics Module see page 8 25 2 Reach underneath the Center Guide and carefully remove the media sensor by pulling it gently down HP DesignJets 1050C and 1055CM Printers Service Manual 8 29 Removal and Installation Window Refer to Figure 26 Removal WARNING Switch off the printer and remove the power cord 1 Open the window and holding both sides pull up to remove NOTE The Window hinges must be vertical when pulling up C607404 8 30 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Top Cover Refer to Figure 27 Removal WARNING Switch off the printer and remove the power cord 1 Remove one T 15 screw Item 1 from the front of the top cover i
199. tallation of the Drive Roller m Accuracy Calibration Page 5 6 m Color to Color Calibration Page 5 16 8 70 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Center Guide Refer to Figure 78 to Figure 80 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following Left Hand Cover see page 8 13 Right Hand Cover see page 8 4 Electronics module see page 8 25 Ink Supply System Assembly see page 8 19 Clutch assembly see page 8 21 Service Station see page 8 8 NAW KR WN Vacuum Fan see page 8 11 2 Lift up the paper entry assembly 3 Remove the two T 15 screws from the left hand side plate securing the left side of the center guide refer to Figure 78 1607433 Figure 78 Left Hand Center Guide Screws HP DesignJets 1050C and 1055CM Printers Service Manual 8 71 Removal and Installation 4 Remove the two T 15 screws from the right hand side plate securing the right side of the center guide refer to Figure 79 C607432 Figure 79 Right Hand Center Guide Screws NOTE For re installation purposes note the position of the pins supporting the center guide in place NOTE Working from the front of the printer 5 Remove the center guide item 1 refer to Figure 80 a Lift up the front of the center guide b Pull the complete assembly towards you and remove Figure 80 Center Gu
200. talled Front Panel Assembly WARNING Removal 1 Remove the Printhead Cleaners Refer to the User Guide Switch off the printer and remove the power cable Remove the following 1 Right Hand Cover see page 8 4 The Front Panel Assembly and the Front Panel Assembly Cable can be removed by releasing them from the retaining clips item 1 and cable clamps item 2 inside the Right Hand Cover item 3 Refer to Figure 2 Figure 2 Front Panel 8 6 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Right Hand Trim and Window Switch WARNING Refer to Figure 3 Removal Switch off the printer and remove the power cable Remove the following 1 Right Hand Cover see page 8 4 Disconnect the Window Switch cable from the Service Station cable Remove 2 screws Item 1 that attach the Right Hand Trim Item 2 to the Printer Remove the Right Hand Trim Item 2 from the Printer Figure 3 Right Hand Trim HP DesignJets 1050C and 1055CM Printers Service Manual 8 7 Removal and Installation Service Station Assembly WARNING NOTE NOTE Refer to Figure 4 Removal Switch off the printer and remove the power cord 1 Remove the Printhead Cleaners Refer to the User Guide Remove the following 1 Right Hand Cover see page 8 4 Disconnect the service station cable from the electronics module out of
201. tatus Messages While Replacing 3 15 Summary of Solving HP No 80 Supplies Problems 3 17 Carriage Interconnect Wiper 3 18 4 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities 4 1 Service Tests Diagnostics 4 3 Entering the Service Tests Menu 4 4 1 Electronic Systems 4 5 2 EIO Card 4 10 3 Hard Disk Drive 4 12 4 Ink Pressure System 4 14 5 Scan Axis 4 17 6 Paper Axis 4 20 7 Drop Detector 4 22 Service Utilities 4 25 Entering the Service Utilities Menu 4 26 Tubes Purge 4 28 Release Info 4 32 Set Asian PS Fonts 4 33 Printer Model Type 4 35 Overdrive Cleaning 4 37 EEROM Utilities 4 38 Printhead Check 4 41 Mon Mode Baud Sel 4 42 CANIN MN BP WN Service Calibrations 5 1 Service Calibrations 5 2 Entering the Service Calibrations Menu 5 4 Accuracy Calibration 5 6 Line Sensor 5 9 Service Station 5 11 Roller Mark Position 5 13 Pen to Paper Spacing 5 15 Color to Color calibration 5 16 Calibrations Backup 5 19 Pen Alignment 5 22 Carriage Height Calibration 5 24 o aN Dua FWY Table of Contents HP DesignJets 1050C and 1055CM Printers Service Manual Table of Contents Print Quality 6 1 Print Quality Troubleshooting Checklist 6 2 Print Modes 6 3 How to Use the Print Quality Test 6 4 What is the Print Quality Test 6 4 Considerations for Printing the Print Quality Test 6 4 Printing the Print Quality Test 6 4 Nozzle Print Test 6 6
202. tch the Printer ON again and repeat the Hard Disk Drive Test If the Hard Disk Drive Test fails then the EIO Card could be faulty Replace the EIO Card If the Hard Disk Drive Test continues to fail after replacing the EIO card or the Hard Disk Drive then replace the Electronics Module gt Page 8 25 Only replace one component at a time and try the Service Test again before replacing another component Using this procedure you will be able to determine exactly which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 4 13 Service Tests and Utilities 4 Ink Pressure System The purpose of this test is to verify the operation of the m Tubes System m Air Pressurization System APS WARNING IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE TUBES SYSTEM OR THE APS IF THIS TEST PASSES DO NOT REPLACE THE TUBES SYSTEM OR THE APS NOTE The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print Perform the Ink Pressure System test as follows 1 Inthe Service Tests submenu scroll to 4 Ink Pressure System and press Enter Top B Back mt mz B Enter Service Tests 1 Electronic Systems L Make Selection 4 Ink Pressure System Press Enter 2 The test will start and t
203. te APS Page 8 20 m If the error code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 2 18 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action WARNING System Error Codes 0B0003 ADCO Internal channels check Failure Replace the Electronics Module Page 8 25 0B0004 Unable to detect Pump Try the following m Check that the cable from the Ink Supply Station ISS PCA to the Ink Supply Station is correctly connected m Faulty APS Pump Replace the complete APS Page 8 20 m If the error code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 0B0005 Unable to detect Valve Try the following m Check that the cable from the Ink Supply Station ISS PCA to the Ink Supply Station is correctly connected m Faulty APS Valve Replace the complete APS Page 8 20 m If the error code continues replace the Electronics Mo
204. tem 2 2 Remove five T 15 screws item 3 from the rear of the top cover 3 The top cover Item 2 can now be released from retaining clips and then removed i P IHS Figure 27 Top Cover HP DesignJets 1050C and 1055CM Printers Service Manual 8 31 Removal and Installation Back Cover Refer to Figure 28 Removal WARNING Switch off the printer and remove the power cord 1 Remove the following 1 Top Cover see page 8 31 2 Remove three T 15 screws item 1 from the bottom of the back cover item 2 Lift the back cover up and remove C607405 8 32 HP DesignJets 1050C and 1055CM Printers Service Manual Removal and Installation Scan axis Motor Assembly WARNING Refer to Figure 29 Removal Switch off the printer and remove the power cord Remove the following 1 Right Hand Cover see page 8 4 2 Left Rear Cover see page 8 24 Disconnect the scan motor cable from position P3 SCAN MOTOR in the electronics module Remove the two T 15 screws item 1 that attach the Scan axis motor item 2 to the Chassis Hold the Scan axis motor at an angle just enough so that the belt item 3 can be taken off Remove the Scan axis Motor from the printer C60718 Figure 29 Scan axis Motor Assembly HP DesignJets 1050C and 1055CM Printers Service Manual 8 33 Removal and Installation Encoder Strip Refer to Figure 30 t
205. ter 10 2 Electrical System 10 2 Power Supply Unit PSU 10 3 Soft Power Off Switch 10 4 Front Panel 10 4 Ink Delivery System IDS 10 5 Ink Supply Station ISS 10 5 Tubes System 10 6 Air Pressurization System APS 10 7 Ink Level Sense ILS 10 7 Leak Detect System LDS 10 8 Service Station 10 9 Print Head Cleaner PHC 10 9 Printer Specifications 10 12 Printable Area 10 16 Interface Specifications 10 17 Regulatory Notices 10 18 To Obtain a Material Safety Data Sheet MSDS 10 18 Sound 10 18 Electro Magnetic Compatibility EMC 10 18 VCCI Class A and Class B Japan 10 21 Declaration of Conformity 10 22 www designjet online hp com 10 23 Glossary Index HP DesignJets 1050C and 1055CM Printers Service Manual 9 Table of Contents 10 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting Introduction 1 2 Troubleshooting System Error Codes 1 2 Performing a Service Test on a Failed Assembly 1 3 Performing the Necessary Service Calibrations 1 3 Solving Image Quality Problems 1 3 Front Panel LEDs Flash Briefly at Power ON amp Nothing Else Happens 1 4 The Printer does not Power ON 1 5 ALL the Front Panel LEDs are Lit but Nothing Else Happens 1 5 One of the Print Quality LEDs on the Front Panel is Lit and nothing else and the SELF TEST Message Remains on the Front Panel 1 5 The Printer Continuously Rejects Printheads 1 6 Cover Sensors are not Working 1 6 The Line Sensor has Pr
206. th across the area where the scraping sound was gently lowering and raising the Carriage Assembly until you are sure that it is as close as it possibly can be to the Center Platen without touching 13 Continue checking the full length of the printer until you arrive at the blue line used to load the cut sheet paper repeating steps 10 11 and 12 whenever a scraping sound is heard HP DesignJets 1050C and 1055CM Printers Service Manual 5 31 Service Calibrations 14 When the complete length of the printer is calibrated clear of any scraping sound tighten the two T10 screws at the back of the Carriage Assembly to secure the current position 5 32 HP DesignJets 1050C and 1055CM Printers Service Manual Print Quality Print Quality 6 2 Print Quality Troubleshooting Checklist 6 2 Print Modes 6 3 How to Use the Print Quality Test 6 4 What is the Print Quality Test 6 4 Printing the Print Quality Test 6 4 Nozzle Print Test 6 6 Color Alignment Print Test 6 7 What is Banding 6 9 Aligning the Printheads 6 12 Troubleshooting Print Quality Problems 6 13 Problems with Stepped Lines 6 13 Long Term Color Bleeding Glossy Papers 6 22 Color Consistency problems 6 22 Color Accuracy Configuration 6 23 There are Smears or Scratching on the Printed Media 6 24 HP DesignJets 1050C and 1055CM Printers Service Manual 6 1 Print Quality
207. the Printer OFF and disconnect the Vacuum Fan from the Electronics Module Connect a New Vacuum Fan to the Electronics Module and power ON the Printer If the New Vacuum Fan functions correctly without any Error Codes then remove the Old Vacuum Fan from the Printer and install the New one m If the New Vacuum Fan does not function correctly either then replace the Electronics Module Page 8 25 0B0008 Unable to detect Cooling Fan Replace the Electronics Module Page 8 25 2 20 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action System Error Problem Description Corrective Action WARNING System Error Codes 0B0009 Unable to detect Aerosol Fan Included on the Right Cover Try the following m Make sure that the Aerosol Fan is connected correctly to the Electronics Module m Turn the Printer OFF and disconnect the Aerosol Fan from the Electronics Module Connect a New Aerosol Fan comes with the new Right Cover to the Electronics Module and power ON the Printer If the New Aerosol Fan functions correctly without any Error Codes then remove the Old Aerosol Fan from the Printer and install the New one m If the New Aerosol Fan does not function correctly either then replace the Electronics Module Page 8 25 OBOO0A Primer Shutdown Error Try the following m Check that the Primer Stepper Motor Cable is NOT broken or damag
208. the Printer and Power ON again before trying to print Perform the Scan Axis test as follows Perform this test with the Printheads and the Tubes System installed in order to get values that can be compared correctly In the Service Tests submenu scroll to 5 Scan Axis and press Enter EE o Service Tests E 1 Electronic Systems 3 i Make Selection 4 Ink Pressure System 5 Scan Axis m 4 B Enter Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 4 17 Service Tests and Utilities 2 The test will start and the following message will appear on the front panel SCAN AXIS Running Scan Axis Test takes 2mn 3 Once the test is completed the following message will appear on the front panel SCAN AXIS FORWARD 4 Press Enter and the following message will appear on the front panel SCAN AXIS BACKWARDS To check if the values displayed after the test are within the limits refer to the following table Scan Axis Forward Scan Axis Backwards Normal Maximum Normal Maximum Avg PWM 165 185 165 185 Max PWM 220 240 220 240 Stabilize Dist 1800 2400 1800 2400 Avg Speed offset 2 4 10 24 10 STD Speed offset 4 4 10 44 10 4 18 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and Utilities If the values obtained in the test are less than the Maximum values in the previous table then the test has passed
209. the it Press Enter once the selection has been made Es Top B Back mt BR Enter Line Sensor Calibration L Make Selection Accept Press Enter HP DesignJets 1050C and 1055CM Printers Service Manual 5 9 Service Calibrations 3 Ifyou selected to continue then the following message appears on the front panel if media is not loaded You must load Media in to the Printer to continue ial Top B Back it BR Enter 4 The Printer will start to print the Line Sensor Pattern and the following message will be displayed on the front panel Please load paper to perform this operation and try again Press ENTER to continue Press Enter Calibrating line sensor Please wait 5 Once the line sensor calibration is completed the following message will be displayed on the front panel EE Line sensor calibrated Back i Enter 6 To check if the Calibration was completed correctly print the Service Configuration Print see Page 9 and check that the values given for the LED Green Blue are NOT zero Press ENTER to continue Press Enter Check that these value are NOT zero 7 If the calibration fails Perform the Electronic Systems Test gt Page 4 5 5 10 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 3 Service Station The purpose of this Service Calibration is to calibrate the Service Stati
210. tion gt Page 5 9 Perform the Mark Encoder Calibration gt Page 5 3 Replace the Trailing Cable gt Page 8 39 Replace the Carriage Assembly Page 8 44 If the Error Code continues replace the Electronics Module Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 2 10 HP DesignJets 1050C and 1055CM Printers Service Manual System Error Problem Description Corrective Action System Error Problem Description Corrective Action NOTE System Error Codes 06030B The Ambient Temperature measured is out of the normal range Try the following m Make sure that the Ambient temperature is within the allowed range between 0 and 55 Degrees Centigrade m Replace the Electronics Module gt Page 8 25 070100 XXXXXXXX Non Continuable Firmware Error Power the Printer OFF and ON again to see if the System Error disappears If the Error Code reappears then report the error to the HP response Center or the nearest HP Support Office stating the following information m Model and Serial Number of the printer Which firmware revision the printer is using See Note below Check firmware in Utilities Statistics Code rev m The complete error number See Note below m The Service Configuration Print Page 1 19 m The Current config
211. to Paper ED Please load paper to Lo Back perform this operation and try again mE T Press ENTER to continue 4 Bg Enter Press Enter The Printer will start to print the calibration pattern and the following message will be displayed on the front panel Calibrating pen to pen through scan axis Please wait Once the pen to paper spacing calibration is completed the following message will be displayed on the front panel Color to Color calibrated Press ENTER to continue Press Enter Make sure that you press Form Feed and Cut when you have finished the calibration to trim the calibration pattern from the media roll If the calibration fails then the following message will appear on HP DesignJets 1050C and 1055CM Printers Service Manual 5 17 Service Calibrations the front panel Calibration error Press ENTER to continue In this case to resolve the problem try the following 1 Ifthe calibration pattern is bad m Try recovering the Printheads using the front panel menu and try the calibration again m If the calibration pattern is bad again then replace the Printhead of the color that is bad 2 Perform the Electronics System test gt Page 4 5 5 18 HP DesignJets 1050C and 1055CM Printers Service Manual Service Calibrations 7 Calibrations Backup The purpose of this Service Calibration is to allow the EEROM contents to be saved when the Electronics Module
212. to the supply implemented with a hard switch to provide the input voltage which is in the range 80 264 V HP DesignJets 1050C and 1055CM Printers Service Manual 10 3 Functional Overview Soft Power Off Switch Front Panel There is a power off switch on the front panel to switch OFF the product in a controlled way When the switch is actuated the firmware turns off several subsystems and stores information about the product in the EEROM then it grounds the soft power off signal to the PSU to switch off the product The main goal of the soft power off switch is to improve the reliability of the product powering off the systems and putting the product in a known state before the power off condition The user can interact with the printer in two ways from the host via the I O channels or directly via the front panel The front panel is used to display messages like the status of the machine or warnings to configure the printer like setting the print quality or defining the palette and to send commands to it cancel the job or print a demo for example It is important to recognize that the configuration settings that can be sent with the header of one plot will apply just to that plot and won t override the front panel settings for subsequent plots The front panel module has an LCD display 10 keys 6 leds and one beeper The front panel display is a 128 x 64 pixel graphic LCD Every pixel can be activated individually an
213. uration sheet m Which software application the customer is using name version etc When reporting the System Error Code make sure that you supply the full Error Code including the last 8 numbers where applicable and the firmware version Without this information HP Support Personnel cannot help you HP DesignJets 1050C and 1055CM Printers Service Manual 2 11 System Error Codes System Error Problem Description Corrective Action System Error Problem Description Corrective Action 080001 Non Continuable PostScript Error Refer to System Error Code 070100 09xxxx Non Continuable EIO Accessories EIO Card Hard Disk Drive Error Try the following Switch the Printer OFF and ON again and wait for the initialization If the Error code continues to appear switch the Printer OFF Remove the EIO Card if installed and make sure that the Hard Disk Drive is installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened Switch the Printer ON again If the error codes 09Axxx or 09Bxxx appear then replace the Hard Disk Drive If the Error Code disappeared after removing the EIO Card then switch the Printer OFF and reinstall the EIO Card making sure that the two installation screws are completely tightened Switch the Printer ON again If the Error Code reappears then the EIO Card could be faulty Replace the EIO Card If Error Code 0
214. usage tips technical briefings and examples of HP DesignJet applications around the world full information on worldwide HP Customer Care contacts an on line HP DesignJet Diagnosis troubleshooting tool a calendar of HP DesignJet related events and programs on line access to training videos and selected user documents and immediate information on new products Communication from the users to HP includes E feedback on HP DesignJet features E automatic contact with HP Customer Care from the troubleshooting tool for HP to follow up E and the chance to ask technical questions on large format printing to industry experts And finally communication from user to user includes the chance to win prizes by submitting HP DesignJet success stories as well as a user to user discussion forum where users can share best practices and ask for advice from their fellow professionals HP DesignJet Online is available in English German French Italian Spanish and Portuguese HP DesignJets 1050C and 1055CM Printers Service Manual 10 23 Functional Overview 10 24 HP DesignJets 1050C and 1055CM Printers Service Manual Glossary ac Alternating current ANSI size An American standard media size e g D E application The software you use to create your drawings APS Air Pressurization System Centronics A standard for the parallel interface between computer and device clipping Losing part of a drawing at the e
215. which does NOT require the full Initialization of the Printer Therefore it is important that once you have finished with the Service Test you MUST power OFF the Printer and Power ON again before trying to print IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE ELECTRONICS MODULE TRAILING CABLE OR THE CARRIAGE ASSEMBLY IF THIS TEST PASSES DO NOT REPLACE THE ELECTRONICS MODULE TRAILING CABLE OR THE CARRIAGE ASSEMBLY This test can be performed with just the Front Panel Trailing Cable Carriage Electronics Module and the Power Cord connected together to isolate problems HP DesignJets 1050C and 1055CM Printers Service Manual 4 5 Service Tests and Utilities Perform the Electronic Systems test as follows 1 In the Service Tests submenu scroll to 1 Electronic Systems and press Enter EE Back Service Tests 1 Electronic Systems 2 EIO Card _ 3 Hard Disk Drive C4 i L Make Selection 4 Ink Pressure S af 5 Scan Axis B Enter __ Press Enter 2 The test will start and the following sequence of messages will appear on the front panel ELECTRONIC SYSTEMS ELECTRONIC SYSTEMS Running Electronics Module Test XXXXXXXX Running DRAM Test XXXXXXXX XXXXXXXX XXXXXXXX L EEROM functionality L DRAM access functionality ACMEEP DMA functionality Fans test Main PCA to ISS Communication ISS shift register ELECTRONIC SYSTEMS Running Carriage Test XXX
216. x appareils num riques de Classe A prescrites dans le r glement sur le brouillage radio lectrique dict par le Minist re des Communications du Canada This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications When connected to LAN cables using print server accessories this digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications 10 20 HP DesignJets 1050C and 1055CM Printers Service Manual Functional Overview VCCI Class A and Class B Japan Korean EMI statement Taiwanese EMI statement Tele communications General Approval UK Address COREIA HAWES Ie BEB aS CV CC 1 oR EO 6 POT E CT CORBIS KERTET A LA ANE UTHER TOREN STOFFE a VREER L TIE MSNDE VMTN SECTOEMSVET WY TRU AICHE gt TELOR RUA LTFAU IEEE802 3 b L lt id Ethernet CRAM TUSHAR COMBI HR MERE SERRE BERS VCCI ORME ICO XK HR RNR CT OREAK ERE CHATS ERR SEITI MRHAVET COBRA ERAT Sk Eknat ANE SIE GE o AANE YFBLS BabA ABS We 7 7 0 LY waa EE ALBA AS 2 SpA 7 e Bek AR TLAS doe a et FAA y 9 PRO m Ag Se A BRP MA AMA D gt ADEA PEAT gt VRS MARR ABEL gt RASS RERE LEBER Telecommunications Statement The HP DesignJet 1050C and 1055C
217. y 8 60 Ink Supply Station Assembly 8 19 Left Hand Cover 8 13 Left Hand Trim Assembly 8 18 Left Rear Cover 8 24 Media Holder Strip 8 69 Media Sensor 8 29 Paper Entry Assembly 8 64 Paper axis Motor Assembly 8 12 Pinch Wheel Assembly and Cam 8 73 Platen Assembly 8 63 Rear Platen 8 23 Right Hand Cover 8 4 Right Hand Trim 8 7 Right Rear Cover 8 24 Roller Guide 8 66 Scan axis Motor Assembly 8 33 Service Station Assembly 8 8 Tail Deflectors 8 23 Tensioner 8 37 Top Cover 8 31 Trailing Cable 8 39 Tubes System Assembly 8 53 Vacuum Fan 8 11 Window 8 30 Window Switch 8 7 Required Tools 8 3 Rice Paper 1 13 Right Hand Assemblies 7 12 Right Hand Cover 7 8 8 4 Right Hand Trim 8 7 Right Rear Cover 8 24 Roller Guide 8 66 Roller Mark Position Calibration 5 13 S Scan Axis Service Test 4 17 Scan Axis Assemblies 7 20 Scan axis Maintenance 9 4 Scan axis Motor 8 33 Scheduled Maintenance 9 3 Scratches on prints 1 11 Scratching 6 24 Service Calibrations 1 3 Accuracy Calibration 5 6 Calibrations Backup 5 19 Carriage Height Calibration 5 24 Color to Color calibration 5 16 Entering 5 4 Line Sensor 5 9 Pen Alignment 5 22 Pen to Paper Spacing 5 15 Roller Mark Position 5 13 Service Station 5 11 Service Configuration Print 1 19 Service Station 8 8 10 9 Service Station Calibration 5 11 Service Tests 1 3 Drop Detector 4 22 EIO Card 4 10 Electronic Systems 4 5 Entering 4 4 Hard Disk Drive 4 12 Ink Pressure System 4 14 Paper Axis 4 20 S
218. y HP Certified service personnel only Part Numbers Part Numbers for Printer options accessories and service parts are located in Chapter 7 Conventions A small arrow is used to indicate other parts of the Service Manual where you can find information related to the topic you are consulting HP DesignJets 1050C and 1055CM Printers Service Manual Table of Contents Table of Contents Troubleshooting 1 1 Introduction 1 2 Troubleshooting System Error Codes 1 2 Performing a Service Test on a Failed Assembly 1 3 Performing the Necessary Service Calibrations 1 3 Solving Image Quality Problems 1 3 Front Panel LEDs Flash Briefly at Power ON amp Nothing Else Happens 1 4 The Printer does not Power ON 1 5 ALL the Front Panel LEDs are Lit but Nothing Else Happens 1 5 One of the Print Quality LEDs on the Front Panel is Lit and nothing else and the SELF TEST Message Remains on the Front Panel 1 5 The Printer Continuously Rejects Printheads 1 6 Cover Sensors are not Working 1 6 The Line Sensor has Problems Detecting Media 1 6 Troubleshooting Media Jams Printhead Crashes 1 7 Troubleshooting Shutdowns 1 7 Problems with the Vacuum Fan 1 9 Vacuum suction much lower at high altitudes 1 9 Bin marks on prints done on HP High Gloss media 1 9 Printhead Crashes Smears on High Density Prints Using Coated Media 1 10 Color changes when stacking prints done on HP High Gloss Media 1 10 HP GL 2 color differences in different HP
219. y fall into the media bin To solve the problem try the following m Advise the customer to install the Media Bin cover that was included with the Printer to avoid this problem If possible advise the customer to hold the prints and prevent them from falling in to the bin HP DesignJets 1050C and 1055CM Printers Service Manual 1 9 Troubleshooting Printhead Crashes Smears on High Density Prints Using Coated Media High density prints can cause cockle mainly on HP Coated Media This causes two main problems Cockling in the borders Because the printer places too much ink on the Coated Media the borders of the print become raised causing the Printhead to crash against the media To solve the problem try the following m Check in the Front Panel if Ink Limiting is ON or OFF If Ink Limiting is OFF turn it ON m Change the paper margins to 15mm either in the Front Panel or in the Driver If the customer is printing PostScript images send them a PPD file containing the extended margins of 15mm Cockling within the print If the Printer places too much ink within the print the media starts to ripple causing the Printhead to smear against the media To solve the problem try the following m Check in the Front Panel if Ink Limiting is ON or OFF If Ink Limiting is OFF turn it ON m Never use HP Coated Media for High Density prints As a substitute use HP Heavy Coated Media Color changes when stacking
220. y which component failed HP DesignJets 1050C and 1055CM Printers Service Manual 2 3 System Error Codes System Error Problem Description Corrective Action WARNING System Error Problem Description Corrective Action 010021 Non Continuable Memory DRAM DIMM Test failure Try the following m Switch the Power OFF from the back of the Printer and disconnect the Power cord Reseat the DRAM DIMMs Memory Modules reconnect the power cord and power On the Printer m If the Error Code appears again switch the Power OFF disconnect the power cord and Replace the Flash DIMMs Memory Modules Reconnect the power cord and power On the Printer and check if the Error Code has been resolved m If the Error Code continues replace the Electronics Module gt Page 8 25 Only replace one component at a time and check if the error has gone before replacing another component Using this procedure you will be able to determine exactly which component failed 010023 Non Continuable EEROM Test failure Try the following m Clear the EEROM Page 4 38 and turn the Printer OFF and ON again from the back of the Printer If after clearing the EEROM the Error Code disappears make sure you perform the Calibrations Backup Page 5 19 NOTE Make sure that you select Electronics Module Replaced when performing the Calibrations Backup m If the Error Code continues replace the Electronics Module gt Pa
221. ype of media that is being used since the Line sensor may have problems detecting transparent media or some types of Non HP media Try loading white HP media in to the Printer and check if the Line sensor detects it Excessive ink deposits on the Platen surface can fool the sensor by reflecting the light Clean the Platen The Line Sensor is not calibrated correctly Perform the Line Sensor calibration Page 5 9 The Line Sensor is damaged or faulty Replace the Carriage Assembly Page 8 44 1 6 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting NOTE NOTE Troubleshooting Media Jams Printhead Crashes If using HP Coated Media when problem occurred please also refer to Page 1 10 Printhead Crashes Smears on High Density Prints Using Coated Media The failure modes media jam and head crash are grouped together because in many cases a media jam causes the media to lift up into the carriage path and cause a head crash thus causing many media jam failures to be reported as head crashes Did the media jam occur when loading media m If the client has had media jams itis common for pieces of media to get stuck in the media path Clear the media path When clearing a media jam sometimes media is stuck in the paper path To clear this you must lift the media load handles and insert thicker media into the paper path to push out the media that is still stuck there Is the customer using non HP

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