HP No.80 Ink Supplies Troubleshooting
Contents
1. 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 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 they2. 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 the following sequence of messages will appear on the front panel INK PRESSURE SYSTEM INK PRESSURE SYSTEM Running SRK Test Running APS Test
3. 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 performance Replace 0 4 OK OK HP DesignJets 1050C and 1055CM Printers Service Manual 3 13 HP No 80 Ink Supplies Troubleshooting
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 instructions 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
5. 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 completely 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 t
6. 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 Power OFF the Printer and connect a new Carriage Assembly to the Trailing Cable without removing the old Carriage Assembly from the Printer Perform
7. 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 44 Power OFF the Printer and connect a new Electronics Module to the Trailing Cable without removing the old Electronics Module from the Printer
8. 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 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 S
9. 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 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 po
10. 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 TURNED OFF AUTOMATIC PRINTHEAD CLEANING PROCEDURES WILL NOT WORK PROPERLY SHORTENING PRINTHEAD LIFE ALSO BY TURNING OFF PRINTHEAD CHECK PRINT QUAL
11. 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 inserted the printhead into the printhead carriage assembly and the printer does not BEEP try the following steps Check that during the priming pr
12. 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 7 Drop Detector Press Enter 2 The test will start and the following messages will appear on the front panel PAPER AXIS PAPER AXIS Ru
13. 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 Magenta printhead info Yellow printhead info Black printhead info 5 The front panel displays information on the selected printhead C
14. 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 and Printhead flex circuits using the Carriage Interconnect Wiper Page 3 18 If after reseating and cleaning the printhead the failed message disapp
15. 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 Cartridge Ink Cartridges The HP No 80 ink cartridges for the HP DesignJet 1050C and 1055CM printers require no maintenance or cleaning As long as eac
16. ITY 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 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 D
17. 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 on the front panel scroll to the Printer Setup Options icon and press the Enter key Printer Setup Options 2 Once inside the Printer Setup Op
18. ads 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 installed in the Service Station INK STARTUP Open right cover and install printhead cleaners 11 If media is not loaded the following message a
19. al 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 Test again HP DesignJets 1050C and 1055CM Printers Service Manual 4 7 Service Tests and Utilities WARNING WARNING 2 If the Test fails
20. articular 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 will 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 T
21. ay 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 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
22. e 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 from 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 p
23. ears 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 printhead and replacing the old printhead with a new one Printhead Status Messages While Replacing The following are the printhead status messages that m
24. h 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 Supplies Troubleshooting General Information About HP No 80 Supplies For optimum results from the printer and modular ink delivery system always foll
25. he 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 following message will appear on the front panel HARD DISK DRIVE Running Hard Disk Drive Test 3 If the test passes then the following message
26. he 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 status of your HP No 80 supplies There are two different screens m One screen displays information on the ink cartridges Printer Status Ink Ca
27. ic 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 The 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
28. idge 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 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
29. l 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 T Chinese Traditional Korean J Japanese E eer I Make Selection Press Enter HP DesignJets 1050C and 1055CM Prin
30. nning 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 DO NOT REPLACE THE DROP DETECTOR NOTE The Service Tests work in a special Mode which does NOT require the full Initialization of the Printer Therefor
31. ocess 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 cleaner Ensure that the printhead cleaner is the correct color for that slot 3 Ensure that the printhead cleaner is the correct orientation HP De
32. our 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 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
33. ow 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 not touch wipe or attempt to clean the printhead nozzles This can damage the printhead C6074297a Handle the HP No 80 supplies with care In p
34. own 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
35. ppears 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 I Make Selection Press Enter 2 The Printer will display the Firmware information An example is shown below 2 Release Info Re
36. rdrive 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 following 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 y
37. ress 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 you will be able to determine exactly which component failed 4 24 HP DesignJets 1050C and 1055CM Printers Service Manual Service Tests and
38. rtridge 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 the Enter key Ink System options Cyan cart info Magenta cart info Yellow cart info Black cart info 3 8 HP DesignJets
39. signJets 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 Tests and Utilities Introduction 4 2 Diagnostics Self Test 4 2 Service Tests Diagnostics 4 3 Entering the Service Tests Menu 4 4 1 Electron
40. t 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 OPERATION OPEN THE WINDOW OF THE PRINTER AND ACTIVATE THE WINDOW SENSOR USING A PIECE OF PAPER BEFORE PERFORMING THIS SERVICE UTILITY Perform the Ove
41. ters 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 panel 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 m
42. 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 Enter Service Tests L Make Selection 5 Scan Axis Press Enter 2 The test will start and the following message will appear on the
43. tions 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 the 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 b
44. utton 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 and Utilities 4 When the following message is displayed lift the window and remove ALL the Printheads from the carriage Install the Setup Printhe
45. wer 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 XXXXXXXX XXXXXXXX p Trailing Cable Test Yuyu R W Carriage ADC Pen Continuity Digital Cyan Magenta Yellow Black PEN ACUMEN Pen Digit
46. 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 Switch 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
47. yan 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 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 Cartr
48. ystem 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 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
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