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HP Color LaserJet 2820/2830/2840 service manual

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2. eee If characters are incorrectly formed so that they produce a wavy effect the laser scanner assembly might need service The device is not set to print on the type of media on which you want to print Verify that the problem also occurs on the Configuration page If so replace the laser scanner assembly See Removing the laser scanner assembly In the printer driver select the Paper tab and set Type is to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper The paper path is curling the media Open the rear output door to print to the straight through paper path The media might not meet HP specifications Use a different paper such as high quality paper that is intended for color laser printers See Media specifications Both high temperature and humidity can cause paper curl Check the device environment Text or graphics are skewed on the printed page The media might be loaded incorrectly Make sure that the paper or other print media is loaded correctly and that the www partshere com Partshere Troubleshooting Problem AoBbCc Cause Solution media guides are not too tight or too loose against the stack See Loading media If the error occurs using either tray 1 or optional tray 2
3. CAUTION The parts on the internal surface of the fuser are very hot To avoid burning yourself do not touch those parts 4 Using both hands slowly and steadily remove any print media from inside the device Then carefully reinsert the fuser and secure the locks 5 Reconnect the power cable and then turn on the device www partshere com Partshere Troubleshooting Media jams occur in the automatic document feeder ADF Occasionally media becomes jammed during a copy scan or fax job You are notified of a media jam by the Doc feeder jam Clear Reload message that appears on the device control panel display Possible problems include the following The ADF input tray is loaded incorrectly or is too full See Loading documents to scan for more information m The media does not meet HP specifications such as those for size ortype See Media specifications for more information The media is not of good quality If it is not free of cuts nicks tears spots loose particles dust wrinkles voids staples paper clips and curled or bent edges replace it To clear a media jam from the automatic document feeder ADF 1 Open the ADF cover EY NOTE Verify that any shipping tape inside the ADF has been removed 2 Remove the jam cleanout part Using both hands lift up on the two handles until the part unsnaps Rotate and lift out the cleanout part and set it aside www partsher
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5. one page full color normal speed 119 on Sp moqy oof XV gt g g 0 1 W10 A10 Yg 2675 dn yoid hart ZOZd J010u 4esn4 LOZWOd 122W4 iming c 8 1 e g 401 feuBis snouosyouAs 1 LH Joyeoy 1 JOYOLU JOUUEOS spuodes un peeds jewuou 10 09 y Jaded Buyuud 40 yeyo Figure 6 7 General t Partshere Troubleshooting www partshere com Locations of connectors Figure 6 8 Locations of device connectors 1 of 3 www partshere com Partshere Troubleshooting J220 J704 J213 Figure 6 9 Locations of device connectors 2 of 3 www partshere com Partshere Troubleshooting Figure 6 11 Locations of 250 sheet tray connectors www partshere com Partshere Troubleshooting DC controller connections sar E01vaz N N gt 8010 865 7646 1172 01 Figure 6 12 DC controller connections www partshere com Partshere Troubleshooting Printer calibration You can set the device to calibrate the printer manually or a
6. AoaRbcc ACBECC AcBbCc AoBbcc Vertical streaks or bands appear on the page 00 O a000 Cause The paper lot is flawed The manufacturing processes can cause some areas to reject toner Solution Try different paper such as high guality paper that is intended for color laser printers See Media specifications The imaging drum might be defective Replace the imaging drum See Replacing the imaging drum One or more print cartridges might be low or defective If you are using non HP print cartridges no messages appear on the device control panel or in the HP Toolbox Replace any low print cartridges See Replacing the print cartridges If the error occurs during copy jobs only the scanner glass of the ADF window might be dirty Clean the scanner glass and the ADF window See The imaging drum might be low Replace the imaging drum See Replacing the imaging drum The amount of background toner shading becomes unacceptable AQBbCc AQBboCc The media might not meet HP specifications Use a different paper with a lighter basis weight See Media specifications Very dry low humidity conditions can increase the amount of background shading Check the device environment One or more print cartridges might be low If you are using non HP print ca
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8. NOTE Use only isopropyl alcohol to clean the connections Paper path test If media is not being picked up or is not moving through the paper path you might want to observe all of the paper motion activities Override the door interlock SW301 and the laser scanner switch to observe the following actions Motor rotation Solenoid action Pickup roller motion Drive roller transfer roller fuser roller and gear and delivery roller motion 1 To override the door interlock SW301 push a piece of heavy paper into the slot in the top cover callout 1 to override SW301 www partshere com Partshere Troubleshooting 2 To override the laser scanner switch use a small flatblade screwdriver to override the laser scanner switch callout 2 Figure 6 5 Override SW301 and the laser scanner switch 3 Perform an engine test See Engine test A CAUTION Do not look directly at the laser scanner while the engine test is under way www partshere com Partshere Troubleshooting Service mode functions Use the following information to perform system wide reset procedures and to adjust certain global settings such as the country region Users do not have access to this information NVRAM initialization An NVRAM initialization will return the device settings to the factory set defaults including All menu settings including the fax header and company Fax numbers and names that are associated with one t
9. www partshere com Partshere Troubleshooting Problem Cause Solution Unwanted lines Ink glue correction fluid or an Clean the flatbed scanner surface See unwanted substance might be on the To clean the scanner glass glass The ADF glass might be dirty Clean the ADF glass See To clean the scanner glass Black dots or streaks Ink glue correction fluid or an Clean the flatbed scanner surface See unwanted substance might be on the To clean the scanner glass glass Unclear text The resolution and color levels may be Verify that you have the correct set incorrectly resolution and color settings The scanned page has a background The original might be too thin to scan On the flatbed scanner place three but the original document does not cleanly sheets of clean paper on top of the original close the flatbed scanner cover and then re scan the original Scan specific error messages Table 6 4 Message Description Solution BulbWarmupFromCoarse The lamp light level might be too low or the 1 Power cycle the device lamp stability criteria might not be met 2 Replace the scanning assembly See BulbWarmupFromOff The scanner might not be meeting the Removing the scanning assembly threshold light level 3 Replace the formatter See Removing CalLabelFind Find cal label black white transition and the formatter assemblies then find cal label black squares CalLabelFindAfterScan
10. Cause Solution The media might not meet Use media that meets HP specifications HP specifications See Media specifications One or more print cartridges might be Replace any low print cartridges See low Replacing the print cartridges If the error persists determine if a hardware problem exists Lightly press the switch in the upper left corner of the open multipurpose tray toward the rear of the device frame with at least three sheets of paper in the multipurpose tray The device should print a sheet with horizontal lines of all four colors If one or more colors are missing inspect the device imaging system The wrong original was copied The ADF might be loaded Make sure that the ADF is empty Copies are reduced in size The device software settings might be See the HP Toolbox Help for more set to reduce the scanned image information about changing the settings www partshere com Partshere Troubleshooting Fax problems This section helps you identify and resolve fax problems Problems receiving faxes Use the table in this section to solve problems that might occur when receiving faxes NOTE You must use the fax cord that came with the device in order to ensure that the device functions correctly Problem Cause Solution The device cannot receive faxes from an extension telephone The extension telephone setting might be disabled The fax cord might not be securely
11. Troubleshooting process Use the troubleshooting checklist to solve issues with the device Troubleshooting checklist Follow the steps below when trying to solve a problem with the device NOTE The service CD ROM contains sound files of normal device operations Refer to those files if you are in doubt of what a normal device should sound like Table 6 1 Troubleshooting checklist Step Verification step Possible problems Solutions number 1 Is the power on No power due to failed power 1 Verify that the device is When the device is connected to a grounded power source the control panel shows Hewlett Packard with moving cursors indicating that the firmware code is loading and the print engine motor rotates for approximately 45 to 60 seconds When the firmware is done loading Scanner bulb warming up appears in the control panel and the scan head moves back and forth for 10 15 seconds If you lift the scanner lid you will see that the scanner bulb is lit Near the end of this time the automatic document feeder ADF motor turns on for about two seconds source cable switch or fuse plugged in 2 Verify that the power cable is functional and that the power switch is on 3 Check the power source by plugging the device directly into the wall or into a different outlet Print engine motor does not rotate 1 If the device control panel indicates a jam verify that the fuser shipping lock
12. www partshere com Partshere Troubleshooting To test the control panel display To test the control panel display and ensure that all characters are working correctly complete the following steps 1 Make sure that the control panel display reads Ready 2 Press Menu 3 Press 2 on the keypad NOTE You gain access to the secondary service menu any other menu by pressing 2 4 Usethe lt or gt button to select Display test and then press Enter The device cycles through 15 characters at a time until the test is complete To view the firmware version Use the secondary service menu to determine the device firmware version 1 Make sure that the control panel display reads Ready 2 Press Menu 3 Press 2 on the keypad EA NOTE You can gain access to the secondary service menu from any other menu by pressing 2 4 Usethe lt or gt button to select Show FW Version and then press Enter The control panel shows the device firmware version number To enable or disable the memory card slots A NOTE This procedure applies to the HP Color LaserJet 2840 all in one only 1 Make sure that the control panel display reads Ready 2 Press Menu 3 Press 2 on the keypad NOTE You gain access to the secondary service menu other menu by pressing 2 4 Usethe lt or gt button to select Memory Cards and then press Enter 5 Use the lt or gt button to select Ena
13. Partshere TroOubleshooting To better help our customers this HP Laserjet 2820 series troubleshooting page is simply a guide additional information for your convenience as you search for assistance in repairing your machine Although this information is provided for your convenience it is recommended for the most part that a technician inspects your office eguipment It is recommended to consult with a professional when ordering your printer part s Chapter contents Shop with us while you troubleshoot HP oem parts HP LaserJet maintenance kits Support strategy Troubleshooting process Toners for your printer Control panel messages Clearing jams Print problems HP fuser assembly units HP fuser kit 110v amp 220v Scan problems Parts assemblies for printers Copy problems Service maintenance parts Fax problems X Memory card problems Color laserJet printers Functional tests LaserJet printers and parts Service mode functions Hard to find officejet parts Troubleshooting tools Updating or recovering the firmware code Hard to find deskjet parts User friendly www partshere com Partshere Troubleshooting Support strategy This device has a one year limited warranty Warranty service and support options might vary depending on your country region Refer to the support flyer that came in your box for contact information or visit http www hp com www partshere com Partshere Troubleshooting
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15. connected Change the setting to allow faxes from an extension telephone Verify that the fax cord is securely connected between the telephone jack and the device or another device that is connected to the device Press 1 2 3 in sequence tone dial mode only wait for three seconds and then hang up The device dialing mode might be incorrectly set or the extension phone might be incorrectly set Verify that the device dialing mode is set to Tone Verify that the extension phone is set up for tone dialing as well Incoming fax calls are not being answered by the device The answer mode might be set to Manual If the answer mode is set to Manual the device does not answer calls You have to start the fax receiving process manually The rings to answer setting might not be set correctly The answer ring pattern feature might be turned on but you do not have the service or you do have the service and the feature is not set correctly Check the rings to answer setting for your configuration Check the answer ring pattern feature to verify that it is set properly The fax cord might not be correctly connected or the fax cord is not working See the device getting started guide to check the installation Verify that you are using the fax cord that came with the device The device might not be able to detect incoming fax tones because the answering machine is playing a voice message
16. 3 Open the memory cover on the right side of the device and then open the formatter cage memory door www partshere com Partshere Troubleshooting 4 Install the firmware recovery DIMM into the DIMM slot callout 1 Ma 2 4 E 3 e ay X S4 ea Figure 6 16 Install the firmware recovery DIMM 5 Turn on the device The firmware recovery DIMM takes a few minutes to automatically restore both blocks of firmware code Wait until the message Complete appears on the control panel display 6 Turn off the device and remove the recovery DIMM Turn on the device It should start up normally If the device does not start up normally repeat the recovery process www partshere com Partshere Troubleshooting
17. accommodate the types of jobs that you are printing To temporarily change print guality settings To change the print guality settings only for the current software program open the properties through the Print Setup menu in the program that you are using to print To change print guality settings for all future jobs NOTE For Macintosh instructions see the device user guide for more information For Windows 98 Windows 2000 and Windows Me 1 Inthe Windows system tray click Start select Settings and then click Printers 2 Right click the device icon 3 Click Properties in Windows 2000 you can also click Printing Preferences 4 Change the settings and click OK For Windows XP corporate version 1 Inthe Windows system tray click Start and then click Printers and Faxes 2 Right click the device icon 3 Click Properties or click Printing Preferences 4 Change the settings and click OK Identifying and correcting print defects Use the checklist and print guality issues charts in this section to solve print guality problems www partshere com Partshere Troubleshooting Print guality checklist General print guality problems can be solved by using the following checklist 1 Make sure that the paper or print media that you are using meets specifications See Media specifications Generally smoother paper provides better results Some paper reams are marked with an arrow on the label that indicates the smooth
18. adjusted Remove all media from the input tray straighten the stack and then load the media in the input tray again Adjust the media guides to the width and length of the media that you are using and try printing again More than one sheet feeds at one time The media tray might be overloaded Remove some of the media from the tray See Loading media The media might be wrinkled folded or damaged Verify that the media is not wrinkled folded or damaged Try printing on media from a new or different package www partshere com Partshere Troubleshooting Problem Cause Solution Device does not pull media from the The device might be in manual feed If Manual feed appears on the media input tray mode device control panel display press Enter to print the job m Verify that the device is not in manual feed mode and print your job again The device does not detect media in Verify that there is media in the tray If the tray the error persists inspect the sensor See Removing the density sensor and top of page sensor The pickup roller might be dirty or Clean or replace the pickup roller See damaged Replacing the tray 1 pickup roller and separation pad The paper length adjustment control in Adjust the paper length adjustment tray 2 HP Color LaserJet 2840 all in control to the correct length one only is set at a length that is greater than the media size Performa
19. call report is a brief report that indicates the status of the last fax that was sent or received 1 On the device control panel press Menu 2 Use the lt or the gt button to select Reports and then press Enter 3 Use the lt or the gt button to select Fax Call report and then press Enter 4 Press Enter to select Print report now The device exits the menu settings and prints the report www partshere com Partshere Troubleshooting T 30 protocol trace Use 30 protocol trace report to troubleshoot fax transmission issues Send fax from the device or receive a fax to the device from another fax machine and then print a T 30 trace report after the fax prints The device exits the menu settings and prints the reports On the device control panel press Menu Use the lt or the gt button to select Service and then press Enter Use the lt or the gt button to select Print T 30 and then press ENTER Explanations of some of the report s column headings follow Date and Time identify when the fax begins Type is the type of fax activity send or receive Identification is the phone number to which a fax is sent Result explains the status of the fax means that the fax was successful m Pending faxes are in memory or are printing An error code means that your device might need service The following tables Table 6 6 Fax receive error codes and Table 6 7 Fax send
20. checklist continued Step number Verification step Does the device send afax HP Color LaserJet 2830 2840 all in one models only Connect the telephone line and press START Fax to verify that a dial tone exists using a hand set if necessary Attempt to send a fax Possible problems Poor copy guality from the flatbed The telephone line is not operational or the device is not plugged into the telephone line Solutions 1 If the print quality from the internal tests and the copy from the ADF were acceptable clean the flatbed glass See To clean the scanner glass 2 If after performing the maintenance the problem persists see Copy problems If the problem persists replace the scanning assembly See Removing the scanning assembly Verify that the device is plugged into a telephone line that you know works The telephone cord is faulty or is plugged into the wrong connector 1 Try plugging the telephone cord into the other connector 2 Try anew telephone cord The device fax settings are set incorrectly Review and reset the device fax settings Sent fax is incomplete or of poor quality See Fax problems Does the device receive a fax HP Color LaserJet 2830 2840 all in one models only Use another fax machine to send a fax to the device Too many telephone devices are plugged in or telephone devices are not connected in the correct order
21. error codes define the error codes A NOTE These codes also appear in the fax call report and the fax activity log Table 6 6 Fax receive error codes Error code Description Solution 200 The fax session has completed without errors N A 221 User has pressed Cance button causing the fax Have sender resend the fax session to be prematurely halted 222 The receiving device has answered a call buthas 1 Confirm that the sender is a fax device and been unable to detect the presence of a calling fax device for one of the following reasons Typically this will be due to the receiving fax device answering a voice call The sender canceled the fax transmission by pressing the Cancer button immediately prior to or just as the receiving device answered the call The sending device automatically ended the call immediately prior to or just as the receiving device answered the call not a voice caller typically you must rely on the sender informing the caller that the fax session is failing If the sending device ends the call just as the receiving device starts reception reduce the ring count after which the receiving device answers Alternatively suggest that the sender manually dials to the receiving device and then manually starts the fax session by pressing theStart Fax button once fax tones have been heard from the receiving device Confirm that the sender is not inadvertently attempting to poll transmit
22. gt 41 24VGND 3 19 J201D J201L TH2 4 9 7 3 3V 1 7 7 7 J220D 92136 42185 5 6 FSRTH2 2 Pin Pin 5 5 GND 3 5 210005 Engaging motor 7 4 FSRTHT 4 4 J704 3 FSROUTS 5 3 PM704 474 DEVMOUTA 2 GND 6 2 J203 DEVMOUTA 1 P3 3V 7 1 1 Developing rotary 2932 DEVMOUTB 5 toner level 1 541 DEVMOUTB 3 PS1 detection PCB LAN Fixing delivery Developing rotary Toner cartridge paper sensor home position sensor motor 51 J705 J106 PM705 4734 SLVMOUTA 1 Registration 343 SLVMOUTA 2 S M 2 gt 42 SLVMOUTB 3 J107 Sensor 141 ISIVMOUTB 4 detection unit J127 PS711 Toner cartridge TAGCRGA 1 t tact TAGCRGB 2 memory tag contac GND 3 er J501 15 TR2DCD J128 414 TR2PWM Image cartridge TAGIOA 1 13 TRIS B TAGIOB 2 12 RVTR1DCD memory tag contact GND 3 er TR DCD 10 TR1PWM Multi purpose tra CHGCLK ray 8 CHGDCD pick up solenoid 7 CHGSFT High voltage 6192 6 CHGACPWM 5 CHGDCPWM power supply PCB 4 24VB 3 24VB Al To IOT From PC 2 FSRPWM Multi 11503 11502 1 ICLACPWM u uzpurpose tray CALLIN AIG J135 J502 OTN DONON paper 14 RSVDCD1 1 13 ICLDCPWM 43 503 J504 2 Flash relay SANGND 4 J718 1 GND 5M cu ju J1501 9 ICLCLK 6 4 8 RVICLDCD 7 2 Als 7 ICLDCD 8 43 o Ii it RE 6 RSVDCD2 of 5 DEVDCD To p lt e A 4 DEVPWM 11 SA 3 Sn x 3 RVTR2DCD 12 sera 5 ale fale l gt ESE 3 2 3 3V 13 olelolal RI
23. in the Color Calibration section change the settings and click Apply www partshere com Partshere Troubleshooting Repetitive image defect ruler Use a ruler to measure occurrences of repetitive image defects to help solve image guality problems Place the ruler next to the first occurrence of the defect on the page Find the distance between identical defects and use Figure 6 13 Repetitive image defect ruler to identify the component that is causing the defect Pre ICL roller 22 1 mm 87 inches Developer sleeve 33 9 mm 1 33 inches ICL roller 37 9 mm 1 49 inches Charge roller 38 1 mm 1 50 inches RS roller 41 9 mm 1 65 inches T1 transfer 44 3 mm 1 74 inches T2 transfer 56 9 mm 2 24 inches Pressure roller 66 6 mm 2 62 inches Fuser film 75 6 mm 2 98 inches Transfer belt drive roller 89 0 mm 3 5 inches Transfer belt tension roller 90 0 mm 3 54 inches Cartridge drum 148 3 mm 5 84 inches Figure 6 13 Repetitive image defect ruler NOTE Dueto differences in printing mechanisms and letter A4 media size issues HP recommends that you use only the measurements and not a printed sheet to judge banding issues www partshere com Partshere Troubleshooting Main wiring diagram
24. m Smart Media Memory Stick Secure Digital Multi Media Card XD Card Critical error messages Critical error messages can indicate some kind of failure Cycling the power might fix the problem If a critical error persists the device might require service Table 6 3 Critical error messages Control panel message Description Recommended action 50 x Fuser Error The device has experienced an internal Turn off the device and then disconnect hardware error the power cord Remove the fuser see To clear output area jams and then wait at least 20 minutes Reinstall the fuser turn on the device and then wait for the device to initialize CAUTION The parts on the internal surface of the fuser are very hot To avoid burning yourself do not touch those parts Perform the heating element check See Heating element test If the error persists replace the fuser assembly See Replacing the fuser assembly If after replacing the fuser assembly the error persists replace the power supply See Removing the power supply cover plate www partshere com Partshere Troubleshooting Table 6 3 Critical error messages continued Control panel message Description Recommended action 51 Laser Error The device has experienced an internal hardware error 52 Scanner Error The device has experienced an internal hardware error Turn off the power by using the power switch wait at least 30 s
25. not detect a dial tone Check for a dial tone on the phone line by pressing START Fax Unplug the telephone cord from both the device and the wall and replug the cord Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Recommended action Make sure that you are using the telephone cord that came with the device Unplug the device telephone cord from the wall plug in a telephone and try making a voice call Plug the device telephone cord into ajack for another phone line Make sure that the telephone cord connects the device directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack Update the firmware See Updating or recovering the firmware code If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU No document sent No fax answer Canceled send The device did not scan any pages or it did not receive any pages from the computer to transmit a fax Attempts to redial a fax number failed or the Redial no answer option was turned off Try sending the fax again Call the recipient to ensure that the fax machine is on and ready Check that you are dialing the correct fax num
26. sending device is not fax capable or has disabled reception It may also be a compatibility issue with certain devices and or line conditions 388 The receiving device has originated a fax session and detected a sending fax device but has been unable to detect any T30 frames If the device is in V 17 mode it is likely that the connection has been interrupted In V 34 mode is also possible for this error to occur due to compatibility problems with certain devices and or line conditions 389 The receiving device has originated a fax session and has reattempted V 8 negotiations multiple times without success 390 The receiving device has originated a fax session Reattempt the transmission after making sure using error correction either V 34 or V 17 documents stored in memory are printed and the Transmission of an image has been abandoned device has paper ready for printing If the after a timeout when no data has become ready problem persists reinitialize permanent storage for transmission This is most likely due to a low memory condition although it could be due to other internal problems that cause generation of data for transmission to stall 391 The receiving device has originated a fax session without error correction not V 34 Transmission of an image has been abandoned after a timeout when no data has become ready for transmission This is most likely due to a low memory condition although it could be due to other
27. settings and properties of the device You can print a Configuration page from the device or HP Toolbox To print the Configuration page from the device complete the following steps 1 On the device control panel press Menu 2 Usethe lt or the gt button to select Reports and then press Enter 3 Use the lt or the gt button to select Config report and then press ENTER Supplies Status page The Supplies Status page lists the remaining life of the HP print cartridges and the HP imaging drums It also lists the estimated pages remaining number of pages printed and other supplies information You can print a Supplies Status page from the device or HP Toolbox To print from the device complete the following steps 1 On the control panel menu press Menu 2 Usethe lt or the gt button to select Reports and then press Enter 3 Use the lt or the gt button to select Supplies Status and then press ENTER Usage page The Usage page displays usage statistics such as the number of copies made from the flatbed scanner or the automatic document feeder the number of faxes sent or received HP Color LaserJet 2830 2840 all in one models only the number of pages printed or the number of pages jammed in the scanner engine You can print a Usage page from the device or HP Toolbox To print a Usage page from the device complete the following steps 1 On the device control panel press Menu 2 Usethe lt or the gt button to se
28. side of the paper Make sure that you are printing on the side indicated 2 If you are using a special print media such as labels transparencies glossy or letterhead ensure that you have printed by type 3 Print a Configuration page and Supplies Status page at the device e Check the Supplies Status page to see if any supplies are low or empty No information is provided for non HP print cartridges e lf the pages do not print correctly the problem is with the hardware To determine the hardware problem lightly press the switch in the upper left corner of the open multipurpose tray toward the rear of the device frame with at least three sheets of paper in the multipurpose tray The device should print a sheet with horizontal lines of all four colors If one or more colors are missing inspect the device imaging system If all colors are printed troubleshoot for a formatter issue 4 Print a Demo page from HP Toolbox If the page prints the problem is with the printer driver Try printing from the other printer driver For example if you are using the PCL 6 printer driver print from the PS printer driver e Use the Add Printer Wizard in the Printers or Printers and Faxes in Windows XP dialog box to install the PS driver 5 Try printing from a different program If the page prints correctly the problem is with the program from which you were printing 6 Restart the computer and the device and try printing again If the proble
29. stored for reprinting As soon as possible replace the print cartridge and then reprint the fax The fax that was sent was too light Contact the sender and have the sender resend the fax after altering the settings Problems sending faxes Use the information in this table to solve problems that might occur when sending faxes Problem Cause Solution The document stops feeding in the middle of faxing The maximum length of a page that you can load is 381 mm 15 inches Faxing of a longer page stops at 381 mm 15 inches If the item is too small it can jam inside the automatic document feeder ADF Print the document on shorter media If nojam exists and less than one minute has elapsed wait a moment before pressing CanceL If a jam exists see Clearing jams Then resend the job Use the flatbed scanner The minimum page size for the ADF is 127 by 127 mm 5 by 5 inches If a jam exists see Clearing jams Then resend the job Faxes stop during sending The fax machine to which you are sending might be malfunctioning Try sending to another fax machine Your telephone line might not be working Do one of the following m Turn up the volume on the device and then press Start Fax on the control panel If you hear a dial tone the telephone line is working m Disconnect the device from the jack in the wall and then connect a telephone to the jack Try to make a tele
30. telephone cord from the wall plug in a telephone and try making a call Plug the device phone cord into a jack for another phone line Try a different phone cord If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable See Removing the formatter and line interface unit LIU Update the firmware See Updating or recovering the firmware code If the error persists replace the LIU See Removing the formatter and line interface unit LIU Device error Enter to cont An internal error occurred in the device Press Enter to resume the job If the error persists 1 Turn off the device and then turn on the device 2 If possible print the error log from the Secondary service menu and then troubleshoot the last error on the list 3 If the error still persists and you cannot print an error log replace the components in the following order the formatter and then the DC controller Device is busy The device is currently in use Try again later Wait for the device to finish the current job If the error persists turn off the device and then turn on the device Doc feeder jam Clear Reload www partshere com A piece of media is jammed in the ADF tray Open the ADF cover clear the jam close the ADF cover and reload the paper into Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control p
31. the error occurs only on copy jobs clean the ADF scanning window see a clean the scanner glass If the error still persists replace the scanning assembly See Removing the scanning assembly Aa z Aa Unwanted lines appear on the copy Tray 1 might not be placed correctly Verify that tray 1 is in place The flatbed scanner or the ADF Clean the flatbed scanner or the ADF scanning window might be dirty scanning window See To clean the Bb scanner glass Bb The imaging drum might have been Replace the imaging drum See Bb scratched Replacing the imaging drum An image exists on the back of the On the flatbed scanner place three Bb original or defects exist the scanner sheets of clean paper on top of the Bb cover original close the flatbed scanner cover and then re scan the original If the error persists a print a document from the computer If the printed page is free of the unwanted lines and if the flatbed glass and ADF scanning window are clean replace the scanning assembly See Removing the scanning assembly Black dots or streaks appear on the Ink glue correction fluid or an Clean the device See Cleaning the copy unwanted substance might be on the device automatic document feeder ADF or flatbed scanner The imaging drum might be damaged Inspect the imaging drum and replace or contaminated it if necessary See Replacing the imaging dr
32. to create a scan Wait until the computer scan has finished or cancel the scan from the computer software or press CANCEL Scanning error Cannot connect Settings cleared The device cannot transmit scan information to a computer The device has cleared job settings Verify that the connection cable is not loose or damaged Replace the cable if necessary and try the scan again Re enter any appropriate job settings Unauthorized lt color gt www partshere com A new supply has been installed that is not made by HP This message is displayed If you believe you purchased an HP supply please call the HP fraud hotline at 1 877 219 3183 Service or repairs Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Recommended action until an HP supply is installed or ENTER is reguired as a result of using non pressed HP supplies is not covered under HP warranty To continue printing press Enter The first pending job will be cancelled Unknown Memory Card Error There is an issue with either the memory Reinsert the card If the error persists card or the device memory card reader insert a different card Unsupported Memory Card The memory card that you have inserted is Insert a card that is supported The not a type that is supported HP Color LaserJet 2840 all in one supports the following cards CompactFlash m Ultra CompactFlash
33. to support photo mode Table 6 7 Fax send error codes Error code Description Solution 300 Fax session has completed without errors N A 311 The user of the receiving device has pressed the Resend the fax Cancer button causing the session to be prematurely halted before all pages have been transmitted 312 A sending fax device has failed to answer the Confirm the sending fax device is ready to call Specifically fax tones or the fax handshake receive a document and reattempt the from a sending device has not been detected transmission Typically this is due to the user calling the wrong number the correct number has been called but the device has been configured not to answer or the sending device has temporarily disabled answering due to a condition such as lack of paper or a paper jam 313 A busy signal has been detected each time the Reattempt the fax transmission at a later time receiving device has attempted to call the when the line is no longer busy sending device 314 The receiving device has attempted to initiate a Enable sending diagnostics on the sending device sending diagnostic session but has detected that sending diagnostics are disabled at the sending device 315 The receiving device has attempted to initiate a No solution Sending diagnostics cannot occur sending diagnostic session but has detected that between devices with incompatible sending the sending diagnostic version supported by the versio
34. 168 hours www partshere com Partshere Troubleshooting To print secondary service reports 1 2 3 Make sure that the control panel display reads Ready Press Menu Press 2 on the keypad NOTE You gain access to the secondary service menu from any other menu by pressing 2 Use the lt or gt button to select Service Reports and then press Enter Use the lt or gt button to select one of the following reports e Cont Self Test e Extended Keymap e Error Report see Error log Press Enter to print the report To exit the secondary service menu and remove it from the menu tree press CanceL to return to the Ready display and then press Cancer again To reset the device location The device location setting affects telecom fax and other settings depending on the country region in which the device is used To change the device location setting complete the following steps 1 2 Make sure that the control panel display reads Ready Press Menu Press 2 on the keypad NOTE You gain access to the secondary service menu from any other menu by pressing 2 Use the lt or gt button to select Location and then press Enter Use the gt button to select the country region in which the device is operating and then press Enter Press 1 to select Yes The device turns off and then turns on When the device returns to the Ready state it reflects the new location setting
35. 180 in the paper tray Performance problems Problem Cause Solution Faxes are transmitting or being received very slowly The fax might be very complex such as one with many graphics Complex faxes take longer to be sent or received Breaking longer faxes into multiple jobs and decreasing the resolution can increase the transmission speed The receiving fax machine might have a slow modem speed The resolution at which the fax was sent or is being received might be very high The device only sends the fax at the fastest modem speed that the receiving fax machine can accept If you are receiving the fax call and ask the sender to lower the resolution and resend the fax If you are sending the fax lower the resolution and resend the fax Your telephone line might not be working Hang up and resend the fax Have the telephone company check the telephone line You are sending a fax via an international call You must allow more time to transmit fax jobs internationally www partshere com Partshere Troubleshooting Problem Cause Solution The fax activity logs or fax call reports The fax activity log or fax call reports Print a Configuration page and check are printing at inappropriate times settings are not correct when the reports print The device sounds are too loud or too The volume setting might not be Adjust the volume setting to the correct soft adjusted correct
36. AaBbCc_ AaBbc Cause Internal parts might have toner on them Solution The problem typically corrects itself after few more pages Run cleaning page through the device See Cleaning the device The paper path might need cleaning Run a cleaning page through the device See Cleaning the device The imaging drum might be low Replace the imaging drum See Replacing the imaging drum The fuser might be damaged Replace the fuser See Replacing the fuser assembly Marks repeatedly appear at even intervals on the unprinted side of the page Internal parts might have toner on them The problem typically corrects itself after a few more pages Run a cleaning page through the device See Cleaning the device The paper path might need cleaning Run a cleaning page through the device See Cleaning the device The imaging drum might be low The fuser might be damaged Replace the imaging drum See Replacing the imaging drum Replace the fuser See Replacing the fuser assembly The printed page contains misformed characters AGaBbcc AaBbcc AGBP AGBbCc AaBbcc AaBbcc The media might not meet HP specifications Use a different paper such as high guality paper that is intended for color laser printers See Media specifications The printed page is curled or wavy nn YF
37. Find cal label after a scan or copy return to home DarkFind The bulb will not light and the scanner moves to the right The CCD might not be able to find a suitable dark spot in the scanning assembly to warm up DocOriginFind Find bezel notch LMWFinalFind Scanner sets final LMW window LMWTempFind Scanner sets temporary LMW window www partshere com Partshere Troubleshooting Copy problems This section helps you identify and resolve copying problems Preventing problems The following are a few simple steps you can take to improve copy guality Copy from the flatbed scanner This will produce a higher quality copy than copying from the automatic document feeder ADF m Use quality originals m Load the media correctly If the media is loaded incorrectly it might skew causing unclear images and problems with the OCR application See Loading documents to scan for instructions Use make a carrier sheet to protect your originals Verify that the media meets HP specifications If the media meets HP specifications recurring feed problems indicate the separation pad is worn and needs to be replaced See Replacing the tray 1 pickup roller and separation pad Image problems Problem Images are missing or faded Cause One or more print cartridges might be low Solution Replace any low print cartridges See Replacing the print cartridges The device
38. If you do not need color for your print job set the driver to print in grayscale Print on a different type of media Pages did not print The device might not be pulling media correctly The media is jamming in the device The USB cable might be defective or incorrectly connected Other devices are running on your computer See Media handling problems Clear the jam See Clearing jams Disconnect the USB cable at both ends and reconnect it Try printing a job that has printed in the past m Try using a different USB cable The device might not share a USB port If you have an external hard drive or network switchbox that is connected www partshere com Partshere Troubleshooting Problem Cause Solution to the same port as the device the other device might be interfering To connect and use the device you must disconnect the other device or you must use two USB ports on the computer www partshere com Partshere Troubleshooting Scan problems This section helps you identify and resolve scanning problems Solving scanned image problems Use the table below to solve image scan issues Problem The scanned image is of poor guality Cause The original might be a second generation photo or picture If the scanned page has a background but the original document does not the original might be too thin to scan or copy cleanly The image that appears on the screen might
39. LED does not light verify that the flat cable from the formatter is connected correctly to the memory card assembly If the error persists replace the memory card assembly See Replacing the memory card assembly HP Color LaserJet 2840 all in one only The photo quality is unacceptable The original photo quality might be poor Use a software program to enhance photo quality and then print the photo from your computer The default settings on the device Use a software program to print the might not produce the desired quality photo at the desired settings The photo is the wrong size The appropriate job size might not be Use a software program to resize the available from the device control panel photo at the desired settings and then print the photo from your computer You might have selected an incorrect Verify that the correct setting is job size selected at the device control panel www partshere com Partshere Troubleshooting Problem Cause Solution Cannot edit save or delete images on The device cannot read the memory Verify that the memory card is properly the memory card card inserted and that the card is one that is supported A NOTE You cannot edit memory card files from the device control panel Use a software program to edit delete or save images Scanner did not read proof sheet The device is using non HP supplies Use a software program to print the This fea
40. Make sure that the HP Color LaserJet 2830 all in one or HP Color LaserJet 2840 all in one is the only device on the telephone line and try again to receive the fax The device fax settings are set incorrectly Review and reset the device fax settings www partshere com Does the device print from the computer Connect the network cable or USB cable to the device and the computer Use a word processing application to send a print job to the device Software is not installed correctly or an error occurred during software installation If the computer is connected to the device by a USB cable disconnect the USB cable and then uninstall and reinstall the system software using the device installation CD ROM Reconnect the USB cable when prompted to do so by the installation procedure The cable is not connected correctly Reconnect the cable An incorrect driver is selected Select the proper driver Other devices are connected to the USB port Disconnect the other devices and try again to print There might be a problem with the network connection If printing through the network verify that the device has a valid Partshere Troubleshooting Table 6 1 Troubleshooting checklist continued Step number Verification step Possible problems Solutions TCP IP address by checking the network configuration If the issue persists verify that the green LED on the networ
41. Re record your answering machine message leaving at least two seconds of silence at the beginning of the message Too many devices might be connected to the telephone line You should not have more than three devices attached to the line Try removing the last device that was connected and determine whether the device works If not continue removing devices one at a time and retry after removing each one www partshere com Partshere Troubleshooting Problem Cause Solution The telephone line might not be working Do one of the following Increase the volume on the device and then press Start Fax on the control panel If you hear a dial tone the telephone line is working Disconnect the device from the telephone jack and then connect a telephone Try to make a telephone call to verify that the telephone line is working Incoming fax calls are not being answered by the device A voice messaging service might be interfering with the device as it attempts to answer calls Do one of the following m Disable the messaging service Geta telephone line that is dedicated to fax calls Set the device answer mode to Manual In manual mode you must start the fax receive process yourself m Leave the device set to automatic mode and lower the rings to answer setting for the device to a number less than the rings to answer setting for the voice mail The device will answer all incomin
42. S 2 2192 56 9 1 IR2S 14 00000 Ne 1993 Hse 3 Sub high voltage J112 J130 power supply PCB Figure 6 15 Main wiring 2 of 2 www partshere com Partshere Troubleshooting Updating or recovering the firmware code The device has aflash memory based formatter that enables the firmware code to be updated in the event that new firmware is released for the device Using flash memory also provides a way to recover the firmware in the event of code corruption or failure Firmware update by using flash executable The Configuration page lists the firmware version of the device On flash memory based devices you can update the firmware code by downloading the latest flash executable for the device and running the program according to the readme instructions that come with it Turn the device off and then on before running the executable file If the firmware becomes corrupted or fails usually because of an interruption when attempting to update the firmware the device no longer functions In this case a firmware recovery DIMM is available from HP Firmware recovery DIMM A firmware recovery DIMM can be obtained from HP in the rare event that the firmware in flash memory becomes corrupted When the DIMM is installed in the DIMM slot on the formatter and the device is turned on the DIMM loads the latest firmware code into the device 1 Order a firmware recovery DIMM RDIMM from HP 2 Turn off the device
43. Set the fax resolution to Standard instead of the default of Fine If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU Fit to Page on The copy reduce enlarge feature called Use the flatbed or select another reduction Fit to Page applies only to copies made enlargement setting flatbed only from the flatbed scanner www partshere com Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Group dial not allowed in group Description The speed dial code that you typed is programmed for a group Adding a group dial to another group dial is not allowed Recommended action Add one touch buttons programmed as an individual speed dial or speed dial codes to a group dial Insert Memory Card Card is not in memory slot or is not inserted completely Insert card or verify that card is inserted completely Invalid date Invalid driver An invalid date was entered such as June 35 You are using the incorrect printer driver Re enter the date Reselect the printer driver appropriate for your device Invalid entry Invalid data or response Correct the entry Invalid Memory Card The proof sheet does not match the files on the memory card Remove the memory card and insert th
44. The sending device has attempted to initiate an Enable ECM on both the receiving device and the operation that requires error correction but has sending device not selected error correction for the session 231 The sending device has attempted to initiate a Ensure that the receiving device is capable of www partshere com transmission to the receiving device even though receiving a document Check that paper is correctly loaded paper is not jammed within the Partshere Troubleshooting Table 6 6 Fax receive error codes continued Error code Description Solution the capability to receive is disabled at the device and any other system abnormalities have receiving device been cleared 232 One of the following has occurred 1 Re attempt the fax reception at a different time when telephone line conditions have 233 and 234 e communication failure has occurred 235 and 236 ECM error 237 between the two devices e The user at the remote device may have pressed the Cancet button e The power at the remote device has been interrupted or deliberately turned off causing the fax session to be interrupted improved 2 If the error persists and error correction is in use for the fax session disable ECM 238 239 241 The sending fax device sent an unexpected communication This is a defect in the sending device N A 242 The sending fax device is attempting to receive instead of send Bo
45. anel message Description Recommended action the ADF tray See To clear a media jam from the automatic document feeder ADF If the error persists replace the ADF separation pad see Removing the ADF separation pad and ADF pickup roller see Replacing the ADF pickup roller assembly Document feeder mispick Reload Engine comm error Media in the ADF tray was not picked up The device experienced an internal communication error Remove the media from the ADF tray and then reload it If the error persists replace the ADF separation pad see Removing the ADF separation pad and ADF pickup roller see Replacing the ADF pickup roller assembly This is a warning message only Job output might be affected If the error persists turn off the device and then turn on the device Fax delayed send storage full Fax memory is full Cancel the fax by pressing Enter or CanceL Resend the fax You might need to send the fax in multiple sections if the error occurs again If the error persists clear the fax memory 1 Press Menu use the lt gt button to select Fax functions and then press ENTER 2 Use the lt or gt button to select Clear saved and then press ENTER Fax is busy Canceled send www partshere com The fax line to which you were sending a fax was busy The device has canceled sending the fax Call the recipient to ensure that the fax machi
46. anner assembly 6 Close the rear output door to return the fuser levers to their original upward position After clearing the media jam you might need to turn the device off and then turn it on again NOTE When you add new media remove all of the media from the input tray straighten the stack after adding the new media place the stack in the tray and then adjust the media guides To clear output area jams If the media has jammed where it exits the device complete the following steps A CAUTION Do not use a sharp object such as a pencil or scissors to remove jammed media 1 On the back of the device open the rear output door and then push down the fuser levers Releasing the fuser levers relieves tension on the device rollers which allows you to remove the jammed pages www partshere com Partshere Troubleshooting 2 Grasp the leading edge of the media and pull the media out through the output bin 3 Return the fuser levers to their original upward position and then close the rear output door NOTE If you turned the device off before clearing the media jam turn it on again then restart your printing or copying job If the jam is too far into the device to remove you might have to remove the fuser To so complete the following steps 1 Turn off the device and then disconnect the power cable 2 Rotate the locks on the fuser to the unlocked position
47. as detected that the sending device is not e Confirm that the receiver really wants to configured to do this Poll transmission from a attempt a poll reception If not reconfigure sending device is typically configured on a the receiving device for a normal fax session by session basis transmission e Configure the sending device for poll transmission The sender must load a document to transmit and then configure the device for polling 321 There was a communication error with the Reattempt the fax transmission at a different time receiving fax device due to poor telephone line when telephone line conditions have improved conditions 322 324 Telephone line conditions were too poor to send 1 Reattempt the fax transmission at a different a fax time when telephone line conditions have improved 2 If the session fails after transmitting several pages of a large document retransmit the document as several smaller documents 325 328 ECM Telephone line conditions were very poor 1 Reattempt the fax transmission at a different error time when telephone line conditions have improved 2 If the error persists disable ECM Errors may still occur and may result in a degraded image quality on the received page However the ability to transmit the entire document will be improved 329 331 The sending device has reported that one or 1 Reattempt the fax transmission at a different more pages have been received non ECM time when tele
48. atter must be connected to the power supply cover plate to perform engine test Otherwise the device does not print the engine test Figure 6 1 Location of the engine test switch The device prints an engine test page that contains four columns of horizontal lines with each column corresponding to one of the print cartridge colors www partshere com Partshere Troubleshooting Half self test check If an engine test reveals a problem with the image formation process the half self test check allows you to narrow down the area in which the problem exists To perform a half self test check complete the following steps 1 Perform an engine test See Engine test 2 During the engine test open the cartridge door after the paper advances halfway through the device about five seconds after the motor begins rotation The leading edge of the paper should have advanced past the imaging drum 3 Remove the imaging drum 4 Open the imaging drum shield to view the drum surface If a dark and distinct toner image is present on the drum surface assume that the first three functions of the image formation process see the list at the beginning of Engine test are functioning through the development stage Troubleshoot the failure as a transfer or fusing problem If during the half self test check no image is present on the imaging drum perform these checks 1 Make sure that you removed the entire length of the sealing tape from the
49. ber Check that the redial option is enabled Unplug the telephone cord from both the device and the wall and replug the cord Unplug the device telephone cord from the wall plug in a telephone and try making a voice call Plug the device phone cord into ajack for another phone line Make sure that the telephone cord connects the device directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU No fax answer Redial pending www partshere com The receiving fax line did not answer The device attempts to redial after a few minutes Allow the device to retry sending the fax Call the recipient to ensure that the fax machine is on and ready Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Recommended action Check that you are dialing the correct fax number If the device continues to redial unplug the device telephone cord from the wall plug in a telephone and try making a voice call Plug the device phone cord into a jack for another phone line Try a different phone cord Make sure that the telephone cord connects the dev
50. bled or Disabled and then press Enter To calibrate the color 1 Make sure that the control panel display reads Ready 2 Press Menu www partshere com Partshere Troubleshooting 3 Press 2 on the keypad NOTE You gain access to the secondary service menu from any other menu by pressing 2 4 Usethe lt or gt button to select Color Cal and then press Enter 5 Use the lt or gt button to select one of the following settings e Contrasts e Highlights e Midtones e Shadows Press Enter 6 Use the lt or gt button to select one of the following color settings e Cyan density e Magenta density e Yellow density e Black density Press Enter 7 Use the lt or gt button to adjust the density setting Increasing the setting darkens the density while decreasing the setting lightens the density 8 Press Enter to save the setting www partshere com Partshere Troubleshooting Troubleshooting tools The section describes the tools that can help you solve problems with your device Device pages and reports This section describes the pages and reports that help you diagnose and solve problems with the device Demo page To print the Demo page complete the following steps 1 On the device control panel press Menu until the Reports menu appears and then press ENTER 2 Use the lt or the gt button until Demo Page appears and then press ENTER Configuration page The Configuration page lists the current
51. box Open HP Toolbox click Device Settings on the System Settings tab click the Save Restore page and then click Save After resetting the settings you can restore the previous settings by using the same page in HP Toolbox Cleaning the paper path The device features a special cleaning mode to clean the paper path www partshere com Partshere Troubleshooting NOTE If you have access to Toolbox HP recommends cleaning the paper path by using HP Toolbox See To clean the paper path from HP Toolbox On the device control panel press Menu Use the lt or the gt button to select Service and then press ENTER Use the lt or the gt button to select Cleaning Mode and then press Enter A page feeds through the device slowly Discard the page when the process is completed Load plain letter or A4 paper when you are prompted Press Enter again to confirm and begin the cleaning process A page feeds through the device slowly Discard the page when the process is completed Setting the scanner bulb power save time The PowerSave time setting allows you to set the amount of time that the scanner bulb is on before entering the power save mode The bulb is automatically turned on when the device is turned on or when a scanner feature is started 1 2 3 4 On the device control panel press Menu Use the lt or the gt button to select Service and then press Enter Use the lt or the gt button to sele
52. ced See Replacing the tray 1 pickup roller and separation pad Use or make a carrier sheet to protect your originals Solving scan quality problems Problem Blank pages Cause The original might have been loaded upside down Solution In the automatic document feeder ADF put the top end of the stack of originals into the ADF input tray with the media stack face up and the first page to be scanned on top of the stack On the flatbed scanner place the original document face down with the upper left corner of the document at the lower right corner of the glass The scanner bulb might not be working If the scanner bulb does not light verify that the cables from the scanner to the formatter are connected correctly See Removing the scanning assembly If the error persists replace parts one at a time in the following order until the problem is resolved scanner assembly and finally the formatter see Removing the formatter assemblies Too light or dark The resolution and color levels may be set incorrectly Verify that you have the correct resolution and color settings m Use the Text setting for items that contain mostly text Use the Photo setting when you are making a copy of a photo or graphic Use the Mixed setting for documents that include both text and graphics m Use the Draft setting if you want to conserve toner or if the copy quality is not as important
53. ch as being out of paper Call the recipient to verify that the fax machine is on and ready to receive faxes The originals might be incorrectly loaded Verify that the original documents are correctly loaded into the ADF input tray or flatbed scanner See Loading media A fax might be in memory because it is waiting to redial a busy number other jobs that are ahead of it are waiting to be sent or the fax is set up fora delayed send You might be sending a fax from the flatbed scanner with the glass fax size set incorrectly If a fax job is in memory for any of these reasons an entry for the job appears in the fax log Print the fax activity log and check the Status column for jobs that show a Pending designation Verify that the setting is correct Faxes you send have data missing from the end of each page You might be sending a fax from the flatbed scanner with the glass fax size set incorrectly Verify that the setting is correct Voice call problems Problem Voice calls are not being received by the telephone or answering machine that is connected to the line Cause The fax cord might not be correctly connected Solution See the device getting started guide to check the installation The device must be the first device connected to the telephone line The answer mode or rings to answer settings might not be correctly set Verify that the rings to answer setting i
54. cing the memory card assembly HP Color LaserJet 2840 all in one only If the problem persists with multiple types of memory cards replace the following parts one at a time in the following order memory card assembly ribbon cable and then formatter The device does not print certain images Verify that the files on the memory card are in the correct format The device recognizes only SRGB format JPEG files Partshere Troubleshooting Control panel messages The majority of the control panel messages are intended to guide the user through typical operation The control panel messages indicate the status of the current operation and include a page count on the second line of the display if appropriate When the device is receiving fax data print data or scanning commands control panel messages indicate this status In addition alert messages warning messages and critical error messages indicate situations that might require some action Alert and warning messages Alert and warning messages appear temporarily and might require the user to acknowledge the message by pressing Enter to resume or by pressing to cancel the job With certain warnings the job might not complete or the print quality might be affected If the alert or warning message is related to printing and the auto continue feature is on the device will attempt to resume the printing job after the warning has appeared for 10 seconds witho
55. ct PowerSave time and then press ENTER Use the lt or the gt button to select one of the following menu items e 8 hours e 12 hours e 2 hours e 4 hours Press Enter to save the setting NOTE You also can change this setting from HP Toolbox Open HP Toolbox click Device Settings on the System Settings tab click the Service page and then in the Power save time section use the drop down box to set the power save time and click Apply Reducing paper The Less paper curi setting reduces paper curl by reducing the fuser temperature 1 2 3 4 On the device control panel press Menu Use the lt or the gt button to select Service and then press Enter Use the lt or the gt button to select Less paper curl and then press Enter Use the lt or the gt button to select Off or On and then press ENTER www partshere com Partshere Troubleshooting Service only tools iming charts T serq 1asnj serq op Bulueajo onmisod seiq op seq oe seq op g 1 0 noqy seig op Keypeny 210 yano mogy serq op Arepuodas seiq
56. d for Inkjet printers only Use media that is designed for color LaserJet printers Do not use letterhead paper that is printed with low temperature inks such as those used in some types of thermography Do not use raised or embossed letterhead www partshere com Partshere Troubleshooting m The device uses heat and pressure to fuse toner to the paper Make sure that any colored paper or preprinted forms use inks that are compatible with this fusing temperature 210 C or 410 F for 0 2 second CAUTION Failure to follow these guidelines could cause jams damage to the device Solving print media problems The following problems with paper cause print guality deviations jamming or even damage to the device Problem Cause Solution Poor print guality or toner adhesion Dropouts jamming or curl The paper is too moist too rough too heavy too smooth or it is embossed or from a faulty paper lot The paper has been stored incorrectly Try another kind of paper between 100 and 250 Sheffield 4 to 6 moisture content Store paper flat in its moisture proof wrapping The paper has variability from one side to the other Turn the paper over Excessive curl The paper is too moist has the wrong grain direction or is of short grain construction Open the rear output bin or use long grain paper The paper varies from side to side Turn the paper over Jam
57. e correct memory card Memory Card is in backwards The memory card was inserted backwards into the card slot Remove turn and reinsert the card Memory is low Press Enter The device memory has been almost completely filled Allow the device to finish the job or press Enter to cancel the job If the error persists turn off the device and then turn on the device If the error persists add memory to the device Mem low 1 copy Press cancel Memory low Only 1 copy made The device completed making one copy The remaining copies have been canceled because of low device memory The device does not have enough memory to complete the collated copy job Press Cancet to clear the error Break the job into smaller jobs that contain fewer pages If the error persists turn off the device and then turn on the device If the error persists add memory to the device Break the job into smaller jobs that contain fewer pages If the error persists turn off the device and then turn on the device If the error persists add memory to the device Memory is low Try again later The device does not have enough memory to start a new job Wait until the current job is finished before starting a new job If the error persists turn off the device and then turn on the device If the error persists add memory to the device No Dial Tone www partshere com The device could
58. e com Partshere Troubleshooting 4 Gently try to remove the page without tearing it If you feel resistance go to the next step 5 Open the ADF lid and gently loosen the media by using both hands Be careful that the ADF input tray does not fall off while the ADF lid is open 6 When the media is free gently pull it out in the direction shown 7 Close the lid to the flatbed scanner www partshere com Partshere Troubleshooting 9 Reinstall the cleanout part by inserting it as shown Push down on the two tabs until the part snaps into place Install the cleanout part correctly because future jamming might occur if the cleanout part is not replaced correctly F099 29 10 Close the ADF lid www partshere com Partshere Troubleshooting Print problems Print guality problems Occasionally you might encounter problems with print guality The information in the following sections helps you identify and resolve these issues NOTE If you are having copy problems see Copy problems Improving print guality Use the print guality settings to prevent print guality problems Understanding print guality settings Print guality settings affect how light or dark the print is on the page and the style in which the graphics are printed You can also use the print guality settings to optimize the print guality for a specific media type You can change the settings in the device properties to
59. e line conditions have improved then this error will probably be avoided 2 Disable V 34 on the receiving device and attempt the transmission using the V 17 mode Reattempt the fax transmission at a different time when telephone line conditions have improved Partshere Troubleshooting Table 6 7 Fax send error codes continued Error code Description Solution V 8 before phase4 and before the first T 30 frames are exchanged 430 The transmitting device is unable to send continuous ones at the end of the control channel prior to starting the primary channel This is V 34 error This error may be associated with line conditions although it is more likely to be due to internal problems with the modem 431 The transmitting device has not received a N A response after aborting a transmission Depending upon when the session is aborted some sending devices may not respond It should be noted that the receiving unit always attempts to abort the session in a way that allows the sending device to respond to the final PPS_EOP 440 444 An error occurred during a V 34 transmission Reattempt the fax reception at a different time after one or more partial pages image data when telephone line conditions have improved were transmitted using the primary channel The transmitting device was unable to restart the control channel in order to resume the T30 handshake This typically occurs when the receiving device prematurel
60. e print quality issues If necessary use a lint free cloth to gently wipe any fingerprints off the white sleeve 5 Close the jam clearance door and then rotate the locking mechanism clockwise 6 Reinstall the imaging drum in the device The toner smears easily when touched The device is not set to print on the type of media on which you want to print The media might not meet HP specifications In the printer driver select the Paper tab and set Type is to match the type of media on which you are printing Print speed might be slower if you are using heavy paper Use media that meets HP specifications See Media specifications The paper path might need cleaning Clean the device See Cleaning the device If the error persists verify that the fuser is working correctly If it is not working correctly replace the fuser See Removing the formatter assemblies If the error still persists replace the DC controller See Removing the DC controller Marks repeatedly appear at even intervals on the printed side of the page www partshere com The device is not set to print on the type of media on which you want to print In the printer driver select the Paper tab and set Type is to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper Partshere Troubleshooting Problem _ AaBbc
61. ecifications The device might not be calibrated correctly Calibrate the device See Printer calibration An image that appears at the top of the page in solid black repeats farther down the page in a gray field AaBbCc www partshere com Software settings might affect image printing In your software program change the tone darkness of the field in which the repeated image appears In your software program rotate the whole page 180 to print the lighter image first The device is not set to print on the type of media on which you want to print In the printer driver select the Paper tab and set Type is to match the type of paper on which you are printing Print speed might be slower if you are using heavy paper The order of images printed might affect printing Change the order in which the images are printed For example have the Partshere Troubleshooting Problem Cause Solution lighter image at the top of the page and the darker image farther down the page A power surge might have affected the If the defect occurs later in a print job device turn the device off for 10 minutes and then turn on the device to restart the print job www partshere com Partshere Troubleshooting Solving issues with color documents This section describes issues that can occur when you print in color Problem Cause Solution Only black is printing wh
62. econds and then turn on the power and wait for the device to initialize If the error persists replace the laser scanner assembly See Removing the laser scanner assembly Turn off the power by using the power switch wait at least 30 seconds and then turn on the power and wait for the device to initialize If the error persists replace the scanning assembly See Removing the scanning assembly 54 2 55 1 59 16 59 192 59 4 59 99 Errors The device has experienced an internal hardware error Turn off the power by using the power switch wait at least 30 seconds and then turn on the power and wait for the device to initialize 54 2 Carousel rotation error Replace the carousel drive motor see Removing the carousel engagement motor If the error persists replace the DC controller see Removing the DC controller If the error still persists inspect or replace the engaging detection flag 55 1 DC controller Memory Error Replace the DC controller See Removing the DC controller 59 16 Main Motor rotation error Check the cable connections to the DC controller If the error persists replace the DC controller seeRemoving the DC controller If the error still persists replace the main motor 59 192 Developer Motor rotation error Check the cable connections to the DC controller If the error persists replace the DC controller seeRemoving the DC controller If the error still persis
63. en the document should be printing in color AQBoCc AQBoCc AaBbCc Color mode is not selected in your program or printer driver Select color mode instead of grayscale mode The correct printer driver might not be selected in the program Select the correct printer driver The device might not be correctly configured 1 To determine if a hardware problem exists lightly press the switch in the upper left corner of the open multipurpose tray toward the rear of the device frame with at least three sheets of paper in the multipurpose tray The device should print a sheet with horizontal lines of all four colors If one or more colors are missing inspect the device imaging system If all colors are printed inspect the formatter 2 Print a Configuration page If no color appears on the Configuration page replace the imaging drum See Replacing the imaging drum One or more colors are not printing or are inaccurate AaBbCc AeBbCc AoBbCc A color is printing inconsistently after you load a new print cartridge Sealing tape might on the print cartridges Verify that the sealing tape has been completely removed from the print cartridges The media might not meet HP specifications Use a different paper such as high guality paper that is intended for c
64. error persists turn off the device and then turn on the device Canceled send Clear document www partshere com The Cancer button was pressed to cancel the current job while pages were feeding from the ADF tray The cancel process does not automatically clear the ADF If the error persists turn off the device and then turn on the device Remove the jammed item See Media jams occur in the automatic document feeder ADF Then clear the items in the ADF tray and start over If the error persists turn off the device and then turn on the device Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Card is not fully inserted The memory card has not been fully inserted Recommended action Verify that the memory card is inserted completely If the card is fully inserted try inserting another memory card If more than one memory card type has the same issue verify that the LED glows when the card inserted If the LED does not glow verify that the flat cable that connects the memory card assembly to the formatter is connected correctly See Replacing the memory card assembly HP Color LaserJet 2840 all in one only If the issue persists replace the memory card assembly A fax communication error occurred between the device and the sender or receiver Comm error Allow the device to retry sending the fax Unplug the device
65. f the card is correctly inserted use another memory card If more than one memory type card has the same issue verify that the LED lights when a card inserted If the LED does not light verify that the flat cable from the formatter is connected correctly to the memory card assembly If the error persists replace the memory card assembly See Replacing the memory card assembly HP Color LaserJet 2840 all in one only You might have inserted more than one memory card Only one card slot can be occupied for the device to detect JPEG files Verify that only one card is inserted One or more print cartridges might be low Replace any low print cartridges See Replacing the print cartridges Proof sheet not scanning Use the table in this section to solve problems with proof sheet scanning Problem The proof sheet will not scan correctly Cause Solution The flatbed scanner glass might be dirty Clean the flatbed scanner glass See The automatic document feeder ADF might be loaded To clean the scanner glass Remove any media from the ADF The scanner might not be able to read the photo selections This feature has been optimized and tested for use with Genuine HP Toner Supplies variations in color shading can impact the performance of this feature Verify that you have colored the bubbles darkly enough for the scanner to read www partshere com Partshere Trouble
66. from the receiving www partshere com Partshere Troubleshooting Table 6 6 Fax receive error codes continued Error code Description e The sending sending fax device determined there was a feature incompatibility between the two and disconnected immediately before transmitting any further fax tones or T 30 frames This is very rare Solution device instead of transmitting to the receiving device 4 Reconfigure the receiving fax device to use different configuration settings toggle the ECM state and or select a slower reception speed 223 ECM error The receiving device has been unable to receive an entire page even after multiple attempts to re receive the parts of the page that contain errors This is usually due to extremely poor line conditions 1 Reattempt the fax reception at a different time when telephone line conditions have improved 2 If the error persists disable ECM Errors may still occur and may result in degraded image quality on the received page However the ability to receive the entire document will be improved 224 The receiving device has received one or more Reattempt the fax reception at a different time pages with excessive errors This is usually due when telephone line conditions have improved to extremely poor line conditions Error correction is not used during this session so errors are not corrected 225 The sending device has attempted to
67. g calls The device might be out of paper and the memory is full Refill the media input tray Press Enter The device prints all of the faxes it has saved in memory and then resumes answering fax calls If the error persists verify that the flat cable that connects the formatter to the line interface unit LIU is connected correctly If the error still persists replace the LIU See Removing the formatter and line interface unit LIU Faxes are not printing The media input tray is empty Load media Any faxes that are received while the input tray is empty are stored in memory and will print after the tray has been refilled The receive to PC option might be selected and faxes are being received by the computer Check to determine whether the computer is receiving faxes Faxes are printing on two pages instead of one Received faxes are too light or are printing only on half of the page The autoreduction setting might not be set correctly Turn on the autoreduction setting The incoming faxes might have been sent on larger media Turn on the autoreduction setting to allow larger pages to be printed on one page The device ran out of toner while printing a fax The device stores the most recently printed faxes The amount of memory that is available determines the actual www partshere com Partshere Troubleshooting Problem Cause Solution number of faxes
68. ice directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU No fax detected The device answered the incoming call but did not detect that a fax machine was calling Allow the device to retry receiving the fax Try a different phone cord Plug the device phone cord into a jack for another phone line Make sure that the telephone cord connects the device directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU No image layout selected An image layout might not be selected on the proof sheet Verify that you have marked one of the bubbles corresponding to an image layout No images selected You might not have selected any images on the proof sheet Verify that you have marked the bubbles underneath the images you want to print No paper pickup Enter to cont The print engine has failed to
69. ing images in the foreground to blend into the background Try adjusting the settings before you scan the original or enhancing the image after you scan the original www partshere com Partshere Troubleshooting Problem Cause Solution The original is longer than 381 mm 15 inches The maximum scannable length is 381 mm 15 in when you use the automatic document feeder ADF input tray If the page exceeds the maximum length the scanner stops Copies can be longer A CAUTION Do not try to pull the original from the ADF you might damage the scanner or your original See Media jams occur in the automatic document feeder ADF The original is too small The minimum size that the flatbed scanner supports is 25 by 25 mm 1 by 1 inches The minimum size that the ADF supports is 127 by 127 mm 5 by 5 inches The original might be jammed See Media jams occur in the automatic document feeder ADF The media size is incorrect In Scan settings make sure that the input media size is large enough for the document that you are scanning The scan takes too long The resolution or color level is set too high Change the resolution and color level settings to the correct settings for your job The software is set to scan in color The system default is color which takes longer to scan even when scanning a monochrome original If you acguire an image through TWAIN
70. initiate a Enable the sending diagnostics capability on the sending diagnostic session with this device even receiving device though sending diagnostic access is receivingly disabled 226 The sending device has attempted to initiate a None sending diagnostics cannot occur between sending diagnostic session with this device but devices with incompatible sending versions the sending diagnostic versions supported by the two devices are incompatible 227 The sending device has attempted to initiate a Reconfigure the receiving device to receive ata fax session at a speed and modulation that is not slower speed supported by the receiving device 228 The sending device has attempted to initiate a 1 Confirm that polling by the sender is desired poll transmission from the receiving device even It is possible that the sender has though the receiving device is not configured for inadvertently attempted to poll If this is the poll transmission case reattempt a normal transmission from the sending device 2 If polling by the remote user was desired confirm that the receiving device was correctly configured for poll transmission 229 The sending device has attempted to initiate a If the sender is the desired recipient for the polled secure poll transmission from the receiving document confirm that the sender has the device but has not provided a valid password correct password and that the receiving device is configured with the same password 230
71. internal problems that cause generation of data for transmission to stall www partshere com Partshere Troubleshooting Table 6 7 Fax send error codes continued Error code 392 Description The receiving device has answered a fax session and completed the initial V 34 handshake but has been to detect any T30 frames This failure is either a compatibility problems with certain devices or is due to line conditions 393 The receiving device has failed to complete the third phase of the initial V 34 handshake after answering a fax session This is usually due to poor line conditions although it may be a compatibility issue with certain devices and or line conditions 394 The receiving device has failed to successfully negotiate the initial V 8 handshake with the sending device after answering a fax session Typically this will occur when the calling device is not fax capable It may also be a compatibility issue with certain devices and or line conditions Solution 1 Reattempt the fax reception at a different time when telephone line conditions have improved 2 Disable V 34 on the receiving device and attempt the transmission using the V 17 mode 395 396 409 An unexpected 30 frame has been received between pages during a multipage V 34 reception This is almost certainly a compatibility problem with the sending device and may be due to an error with the implementatio
72. ith index page printing Problem Cause Solution The index page will not print The memory card might have been Reinsert the card and reprint the index removed before the device could print page the page or the memory card might have been inserted incorrectly If the card is correctly inserted use another memory card If more than one memory type card has the same issue verify that the LED lights when a card inserted If the LED does not light verify that the flat cable from the formatter is connected correctly to the memory card assembly If the error persists replace the memory card www partshere com Partshere Troubleshooting Problem Cause Solution assembly See Replacing the memory card assembly HP Color LaserJet 2840 all in one only You might have inserted more than one memory card Only one card slot can be occupied for the device to detect JPEG files Verify that only one card is inserted One or more print cartridges might be low Replace any low print cartridges See Replacing the print cartridges Proof sheet not printing Use the table in this section to solve problems with proof sheet printing Problem The proof sheet will not print Cause The memory card might have been removed before the device could print the page or the memory card might have been inserted incorrectly Solution Reinsert the card and reprint the proof sheet I
73. k connector on the back of the device is lit If it is not lit there might be a bad network connection cable or network device router or hub If the issue persists after verifying the above uninstall and then reinstall the network driver software from the device installation CD Print a Configuration page for reference to the TCP IP address during reinstallation If the problem still persists replace the formatter There is a port driver problem in Microsoft Windows Uninstall and then reinstall the device software Verify that you are using the correct installation procedure and the correct port setting 8 Does the device scan back to the computer when you use the Scan To button on the device control panel CAUTION If connected by a USB cable the USB cable might not be connected correctly Reconnect the USB cable If connected by a USB cable the USB cable might be damaged Replace the USB cable with a Hi Speed USB cable Scan to folder or scan to email software application might not be set up correctly Verify the settings for your scan to folder or scan to email software application by using HP Toolbox See Scan to tab Network problems might exist Verify that the device functions on network by sending a print job to the device from the computer 9 Does the device scan from a software application Initiate a scan from the basic desktop software at your comp
74. k up motor aig 2 A 5 8 5 3 215 pick up solenoid PS719 Ya aa Fabs TF 99 5195 5 PM706 Ou ri ON 1719 712 Ta XXX J706 4714 Haa a o 5712 lt PS714 a gt Developing rotary 2 ak al Roller engaging engaging sensor J J2403 J2404 Cle salaf J702 215 500 sheet paper feeder Swe Roller engaging o clutch DCN702 500 sheet paper feeder option 5 Door open Fixing motor detection switch J222LA 6Pin 250 sheet paper feeder Option paper W 250 sheet paper feeder Paper sensor feed sensor ITB home position aste toner pick up solenoid PS716 PS717 J222DA 6Pin sensor detection PCB SL94 F 02020 717 _ PS71 j a a 2 gt 2 ze Aa To Jo Q 212105 Yo cu Density xX 00 detection Main motor 92304 oe Test print switch PCB DCM701 250 sheet paper feeder PCB Swa J81 J2308 42307 XX e202 a 4 oo 2 2301 42220 KX XX X J230LB 250 sheet paper feeder option srin SPm J230LA 423008 Front fixing Developing rotary Registration 8Pin 6Pin paper stopper solenoid clutch J230DA detection sensor SL93 PS720 a kep 2 Z 2 5 alr on HIS a l a 3 das 62 2 22 602 eae cz OO ola sole lt
75. king a voice call Plug the device phone cord into a jack for another phone line and try sending the fax again Try a different phone cord If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU Print all of the faxes and have the sender resend the fax Cancel all fax jobs or clear the faxes from memory NOTE Adding memory DIMM does not help resolve this issue Fax memory full Canceling send During the fax job the memory filled All pages of the fax have to be in memory for a fax job to work correctly Only the pages that fit into memory were sent Print all received faxes or wait until all pending faxes are sent Ask the sender to send the fax again Cancel all fax jobs or clear the faxes from memory Fax recv error An error occurred while trying to receive a fax Ask the sender to resend the fax Try faxing back to the sender or another fax machine Check for a dial tone on the phone line by pressing START Fax Check that the telephone cord is securely connected by unplugging and replugging the cord Make sure that you are using the telephone cord that came with the device www partshere com Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Rec
76. l list of common messages that will panel help you correct the error The control panel If no display appears in the control should function without panel verify that the control panel error messages cables are connected correctly See Removing the control panel 3 Do information pages Control panel displays an error See Control panel messages for a print message list of common messages that will help you correct the error Print a Configuration page Media does not move smoothly Clean the paper path through the device paper path Poor print quality See Print quality problems 4 Does the device copy Poor copy quality from the ADF 1 If the print quality from the internal tests and the copy Place the Configuration from the flatbed were page into the ADF and acceptable clean the ADF make a copy The scanning window See To report should feed clean the scanner glass smoothly through the ADF and copies should 2 Ifthe ADF is damaged print without print replace the ADF See quality problems Make Replacing the ADF a copy from the flatbed as well Media does not move smoothly 1 Clean the ADF pick roller and through the ADF path ADF separation pad 2 If the problem persists replace the ADF pickup roller See Replacing the ADF pickup roller assembly 3 If the problem persists replace the ADF See Replacing the ADF www partshere com Partshere Troubleshooting Table 6 1 Troubleshooting
77. lect Reports and then press Enter 3 Use the lt or the gt button to select Usage page and then press ENTER www partshere com Partshere Troubleshooting Engine test page The engine test page is printed when you perform an engine test See Engine test Error log A small error log appears on the Configuration page see Configuration page However a more detailed report is available from the secondary service menu 1 Make sure that the control panel display reads Ready 2 Press Menu 3 Press 2 on the keypad NOTE You gain access to the secondary service menu from any other menu by pressing 2 4 Use the lt or gt button to select Service Reports and then press Enter 5 Use the lt or gt button to select Error Report and then press Enter The device prints an error log that shows the most recent device errors Fax reports This section describes the fax reports that help you diagnose and solve problems with the device Fax activity log The fax activity log provides a chronological history of the last 40 faxes that were received sent or deleted and any errors that occurred 1 On the device control panel press Menu 2 Use the lt or the gt button to select Reports and then press Enter 3 Use the lt or the gt button to select Fax Activity log and then press ENTER 4 Press Enter to select Print log now The device exits the menu settings and prints the log Fax call report A fax
78. lem Device does not pull media from the media input tray Cause The device might be in manual feed mode Solution m If Manual feed appears on the device control panel display press ENTER to print the job Verify that the device is not in manual feed mode and print your job again The pickup roller might be dirty or damaged Clean or replace the pickup roller See Replacing the tray 1 pickup roller and separation pad The paper length adjustment control in tray 2 HP Color LaserJet 2840 all in one only is set at a length that is greater than the media size Adjust the paper length adjustment control to the correct length Performance problems Try the tips in this section if pages exit the device but have nothing printed on them or when the device does not print any pages Problem Pages print but are totally blank Cause The sealing tape might still be in the print cartridges Solution Verify that the sealing tape has been completely removed from the print cartridges The document might contain blank pages Check the document that you are printing to see if content appears on all of the pages The device might be malfunctioning To check the device print Configuration page Pages print very slowly Printing in color can slow the print job Certain media types can slow the print job See Table 1 15 Special media print speeds
79. ly volume level www partshere com Partshere Troubleshooting Memory card problems This section helps you identify and resolve memory card related problems NOTE For help with control panel error messages while printing from memory card see Control panel messages Missing or wrong files Use the table in this section to solve problems with memory card files Problem Cause Solution Device cannot detect files on the The memory card might be missing or Verify that the memory card is inserted memory card inserted incorrectly correctly If the card is correctly inserted use another memory card If more than one memory type card has the same issue verify that the LED lights when a card inserted If the LED does not light verify that the flat cable from the formatter is connected correctly to the memory card assembly If the error persists replace the memory card assembly See Replacing the memory card assembly HP Color LaserJet 2840 all in one only The files might not be in the correct To print from the device control panel format the files must be in the sRGB JPEG format To print other formats you must use a software program on your computer You might have inserted more than Only one card slot can be occupied for one memory card the device to detect JPEG files Verify that only one card is inserted Index page not printing Use the table in this section to solve problems w
80. m is not resolved choose one of these options e If you suspect the problem is with the engine print and paper path perform an engine test See Engine test e lf the problem is affecting all printed pages see General print quality issues e If the problem is affecting only pages printed in color see Solving issues with color documents www partshere com Partshere Troubleshooting General print guality issues The following examples depict letter size paper that has passed through the device short edge first These examples illustrate problems that would affect all of the pages that you print whether you print in color or in black only The topics that follow list the typical cause and solution for each of these examples Problem Cause Solution Print is light or faded Aa Aa Aa Aa Aa Cc Cc Cc Cc Cc The media might not meet HP specifications Use media that meets HP specifications See Media specifications One or more print cartridges might be low If you are using non HP print cartridges no messages appear on the device control panel or in HP Toolbox Replace any low print cartridges See Replacing the print cartridges If you are using non HP print cartridges replace them with HP cartridges If none of the print cartridges or the imaging drum is low or empty remove the print cartridges one at a time and inspect the toner roller in each to see if the roller is da
81. maged If so replace the print cartridge The imaging drum might be low or damaged Print the Supplies Status page to check the remaining life and verify that the imaging drum has not been exposed to light for a long period of time Replace the imaging drum if it is low or damaged See Replacing the imaging drum The device might not be calibrated correctly Calibrate the device See Printer calibration If the light printing is on the left side of the page the carousel might be dislocated Verify that the print cartridge carousel drive teeth are aligned correctly If the teeth are aligned correctly replace the print cartridge carousel See Removing the print cartridge carousel Toner specks appear AaBbGC AaBbCc The media might not meet HP specifications Use media that meets HP specifications See Media specifications The paper path might need cleaning Clean the paper path See Cleaning the paper path or see the HP Toolbox online Help Dropouts appear A single sheet of print media might be defective Try reprinting the job The moisture content of the paper is uneven or the paper has moist spots on its surface Try different paper such as high quality paper that is intended for color laser printers See Media specifications www partshere com Partshere Troubleshooting Problem
82. might have calibrated incorrectly after you installed a print cartridge Calibrate the device See Printer calibration The original might be of poor quality If your original is too light or damaged the copy might not be able to compensate even if you adjust the contrast If possible find an original document in better condition The original might have a colored background Colored backgrounds might cause images in the foreground to blend into the background or the background might appear in a different shade If possible use an original document without a colored background Vertical white or faded stripes appear on the copy The media might not meet HP specifications Use media that meets HP specifications See Media specifications One or more print cartridges might be low Replace any low print cartridges See Replacing the print cartridges If the error persists inspect the print cartridges for defects in the printing area If the error persists inspect the image drum for damage See Replacing the imaging drum If the error persists inspect the transfer roller for contamination or damage See Removing the transfer roller If error persists inspect the laser www partshere com Partshere Troubleshooting Problem Cause Solution scanner for contamination paper dust or fibers on the window See Removing the laser scanner assembly A If
83. ming damage to device The paper has cutouts or perforations Use paper that is free of cutouts or perforations Problems with feeding The paper has ragged edges Use high quality paper that is made for color laser printers The paper varies from side to side Turn the paper over The paper is too moist too rough too heavy or too smooth has the wrong grain direction or is of short grain construction or it is embossed or from a faulty paper lot Try another kind of paper between 100 and 250 Sheffield 4 to 6 moisture content Open the rear output bin or use long grain paper Print is skewed crooked The media guides might be incorrectly adjusted Remove all media from the input tray straighten the stack and then load the media in the input tray again Adjust the media guides to the width and length of the media that you are using and try printing again If the error occurs using either tray 1 or optional tray 2 the paper path might be obstructed Remove any media jammed in the paper path See Clearing jams More than one sheet feeds at one time The media tray might be overloaded Remove some of the media from the tray See Loading media The media might be wrinkled folded or damaged Verify that the media is not wrinkled folded or damaged Try printing on media from a new or different package www partshere com Partshere Troubleshooting Prob
84. n of the sending device An error occurred during a V 34 transmission when the receiving device was unable to correctly handshake with the sending device and was consequently unable to transmit a T30 frame This occurs when the line was disconnected or if line conditions degrade during the session 410 419 420 An error occurred during a V 34 reception when the receiving device was unable to correctly handshake with the sending device and was consequently unable to transmit a T30 frame This occurs when the line is disconnected or if line conditions degrade during the session V 34 negotiations have failed from the originating device during phase four which occurs after V 8 and before the first T 30 frames are exchanged Compatibility problems have been observed in this area when sending to non HP units 421 V 34 negotiations have failed from the originating device during phase three which occurs after V 8 before phase four and before the first T 30 frames are exchanged Compatibility problems have been observed in this area when sending to non HP units 422 V 34 negotiations have failed from the answering device during phase four which occurs after V 8 and before the first T 30 frames are exchanged 423 www partshere com V 34 negotiations have failed from the answering device during phase three which occurs after 1 Reattempt the fax reception If transmission errors are not encountered becaus
85. nate separate fax transmissions Wait several minutes between the end of one transmission and the start of the next transmission 2 If the error persists disable ECM Partshere Troubleshooting Table 6 7 Fax send error codes continued Error code Description Solution 383 One of the following has occurred 1 Reattempt the fax transmission at a different time when telephone line conditions have e The sending device has failed to respond to improved a fax command from the receiving device due to the connection being interrupted 2 If the error persists disable ECM e sender has pressed the Cancer button while the reception was in progress 384 The receiving device has attempted a black Reattempt the fax transmission using a different JPEG transmission to a device that does not mode support this mode 385 The receiving device has failed to complete the 1 Reattempt the fax transmission at a different third phase of the initial V 34 handshake after time when telephone line conditions have originating a fax session This is usually due to improved poor line conditions although it may be a compatibility issue with certain devices and or 2 Disable V 34 on the receiving device and line conditions attempt the transmission using the V 17 mode 387 The receiving device has failed to successfully negotiate the initial V 8 handshake with the sending device after originating a fax session Typically this will occur when the
86. nce problems Problem Cause Solution No copy came out The input tray might be empty Load media in the device See Loading documents to scan for more information The original might have been loaded In the automatic document feeder incorrectly ADF load the original with the narrow side forward and the side to be scanned facing up On the flatbed scanner place the original document face down with the upper left corner of the document at the lower right corner of the glass If the error persists determine if a hardware problem exists Lightly press the switch in the upper left corner of the open multipurpose tray toward the rear of the device frame with at least three sheets of paper in the multipurpose tray The device should print a sheet with horizontal lines of all four colors If one or more colors are missing inspect the device imaging system Copies are blank The sealing tape might not have been Remove the print cartridges from the removed from the print cartridges device pull out the sealing tape and reinstall the print cartridges The original might have been loaded In the ADF load the original with the incorrectly narrow side forward and the side to be scanned facing up On the flatbed scanner make sure that the original document is placed face down with the upper left corner of the document at the lower right corner of the glass www partshere com Partshere Troubleshooting Problem
87. ne is on and ready Check that you are dialing the correct fax number Check that the Redial if busy option is enabled Check for a dial tone on the phone line by pressing START Fax Make sure that the phone is working by disconnecting the device plugging ina telephone to the phone line and making a voice call Plug the device phone cord into a jack for another phone line and then try sending the fax again Try a different phone cord If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message Description Recommended action persists replace the LIU See Removing the formatter and line interface unit LIU Fax is busy Redial pending Fax memory full Canceling recv The fax line to which you were sending a fax was busy The device automatically redials the busy number During the fax transmission the device ran out of memory Only the pages that fit into memory will be printed Allow the device to retry sending the fax Call the recipient to ensure that the fax machine is on and ready Check that you are dialing the correct fax number Check for a dial tone on the phone line by pressing START Fax Make sure that the phone is working by disconnecting the device plugging in a telephone to the phone line and ma
88. not be an accurate representation of the quality of the scan Solution To eliminate the patterns try reducing the size of the image after scanning Print the scanned image to see if the quality is better Verify that your resolution and color settings are correct for the type of scan job that you are performing For best results use the flatbed scanner for scanning rather than the automatic document feeder ADF On the flatbed scanner place three sheets of clean paper on top of the original close the flatbed scanner cover and then re scan the original Try adjusting your computer monitor settings to use more colors or levels of gray Typically you make this adjustment by opening Display in Windows Control Panel Try adjusting the resolution and color settings in the scanner software The original might have been loaded incorrectly Use the media guides when you load the originals into the ADF See Loading documents to scan The scanner might be dirty Clean the scanner See To clean the scanner glass The graphics settings might not be suitable for the type of scan job that you are performing Try changing the graphics settings or the scan mode Part of the image did not scan The original might have been loaded incorrectly Use the media guides when you load the originals into the ADF See Loading documents to scan A colored background might be caus
89. ns sending device is incompatible 316 The receiving device is setup to initiate document Configure the sending device for reception transmission but it has detected that the sending device is not able to receive a document This error should be very rare since normally a sending device will not answer if it cannot receive a document On of the few exceptions to this would occur if the sending device was configured to poll transmit a document but was unable to receive Typically the sender should ensure paper is loaded in the device paper jams are fixed and any other system abnormalities are cleared www partshere com Partshere Troubleshooting Table 6 7 Fax send error codes continued Error code Description Solution 317 The sending device cannot support a fax N A reception at any speed or modulation that is supported by the receiving device 318 The sending device cannot support a fax N A reception at the page width selected by the receiving device 319 The receiving device has attempted to initiate a Do one of the following binary file transfer BFT but has detected that the sending device does not support this mode of Enable the capability on the sending operation device if it is supported e Retransmit the document as a normal fax rather than attempting a BFT transfer 320 The receiving device is set up to initiate poll Do one of the following reception with a sending device but it h
90. of a page during non ECM reception although the modem has not detected a sending disconnect The sending device is probably transmitting fill bytes instead of data and has either jammed or broken 282 The receiving device has not received any data at the start of a page during ECM reception although the modem has not detected a sending disconnect The sending device is probably transmitting sync frames instead of data and has either jammed or broken 283 The receiving device has detected that the modem carrier has stopped Either the line has been disconnected or the sending device has aborted the transmission 284 The receiving device has not received any data during non ECM page reception and a timeout failure has occurred The sending device is probably transmitting fill bytes instead of data and has either jammed or broken 285 The receiving device has stopped receiving any data during an ECM page reception although the modem has not detected a sending disconnect The sending device is probably transmitting sync frames instead of data and has either jammed or broken Reattempt the fax reception after first requesting that the sender check the sending device 286 290 www partshere com The sending device has transmitted invalid data The receiving device has received frames with errors during an ECM reception and requested retransmission of the errored frames The data that is resent does not c
91. of paper between 100 and 250 Sheffield 4 to 6 moisture content The device settings are not compatible with the media you are using Change the device settings to reflect the media that you are using Dropouts jamming or curl Excessive curl The paper has been stored incorrectly Store paper flat in its moisture proof wrapping The paper has variability from one side to the other Turn the paper over The paper is too moist has the wrong grain direction or is of short grain construction Open the rear output bin or use long grain paper The paper varies from side to side Turn the paper over Jamming damage to device The paper has cutouts or perforations Use paper that is free of cutouts or perforations The paper has staples or paper clips Remove any staples or paper clips from the original document Problems with feeding The paper has ragged edges Use high guality paper that is made for color laser printers The paper varies from side to side Turn the paper over The paper is too moist too rough too heavy or too smooth has the wrong grain direction or is of short grain construction or it is embossed or from a faulty paper lot Try another kind of paper between 100 and 250 Sheffield 4 to 6 moisture content Open the rear output bin or use long grain paper Print is skewed crooked The media guides might be incorrectly
92. olor laser printers See Media specifications The device might be operating in excessively humid conditions Verify that the device environment is within humidity specifications One or more print cartridges might be low If you are using non HP print cartridges no messages appear on the device control panel or in the HP Toolbox Another print cartridge might be low If you are using non HP print cartridge it might be low or empty but you will receive no indication Replace any low print cartridges See Replacing the print cartridges Check the control panel display or HP Toolbox to see if a print cartridge is low and replace it if necessary Print cartridges might be incorrectly installed Remove the print cartridge for the color that is printing inconsistently and reinstall it The device might have calibrated incorrectly after you installed a print cartridge Calibrate the device See Printer calibration www partshere com Partshere Troubleshooting Problem Cause Solution The colors on the printed page do not The colors on your computer monitor Select Screen Match in the Color tab match the colors as they appearonthe might differ from the device output of the printer driver screen The printer driver might affect color Try printing from a different program or printing one of the other printer drivers For example if you are using the PCL 6 AaBlbCc prin
93. ommended action Make sure that the phone is working by disconnecting the device plugging in a telephone to the phone line and making a voice call Make sure that the telephone cord connects the device directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack Turn off error correction mode ECM and turn off V 34 Ask the sender to resend the fax Connect the device to a different phone line If the error persists check the flat flexible cable between the LIU and the formatter Reseat or replace the cable If the error persists replace the LIU See Removing the formatter and line interface unit LIU Fax Send error An error occurred while trying to send a fax Try resending the fax Try faxing to another fax number Check for a dial tone on the phone line by pressing Start Fax Check that the telephone cord is securely connected by unplugging and replugging the cord Make sure that you are using the telephone cord that came with the device Make sure that the phone is working by disconnecting the device plugging ina telephone to the phone line and making a voice call Make sure that the telephone cord connects the device directly to the wall jack Remove any third party devices such as an answering machine that are connected between the device and the wall jack Connect the device to a different phone line
94. op cover is opened during a print job Too many sheets have accumulated in an output area or sheets are blocking an output area The top output bin should contain no more than 125 sheets With the rear output door pages should be removed as soon as they exit the device The print media that is being used does not meet HP specifications See Media specifications The media is damaged or has foreign objects attached to it such as staples or paper clips The environment in which the print media was stored is too humid or too dry See Printing and storage environment Tips to avoid media jams Verify that the input tray is not overfilled The input tray capacity varies depending on the type of print media that you are using Verify that the media guides are properly adjusted Check that the input tray is securely in place Do not add print media into the input tray while the device is printing Use only HP recommended media types and sizes See Media specifications for more information about print media types Do not let print media stack up in the output bin The print media type and the amount of toner used affect the output bin capacity Check the power connection Make sure that the power cord is firmly connected to both the device and the power supply box Plug the power cord into a grounded AC power outlet Where to look for jams Jams can occur in these locations Inside the device under the imaging drum or along
95. or WIA you can change the settings so that the original scans in grayscale or black and white See the device software Help for details A print job or copy job was sent before you tried to scan If someone sent a print job or copy job before you tried to scan the scan will start if the scanner is not busy However because the printer and scanner share memory the scan might be slower Scan quality problems This section provides information about improving scan quality by preventing or correcting problems Preventing problems The following are a few simple steps you can take to improve copy and scan quality Use the flatbed scanner rather than the automatic document feeder ADF input tray to scan m Use high quality originals www partshere com Partshere Troubleshooting Load the media correctly If the media is loaded incorrectly it might skew which causes unclear images See Loading media for instructions Adjust the software settings according to how you plan to use the scanned m Use the Text setting for items that contain mostly text Use the Photo setting when you are making copy of a photo or graphic m Use the Mixed setting for documents that include both text and graphics m Use the Draft setting if you want to conserve toner or if the copy quality is not as important If your device frequently feeds more than one page at a time the separation pad might need to be repla
96. orrespond to the data that was requested This is an implementation error from the sending device The sending device has attempted to renegotiate the session mode from ECM to non ECM between pages This operation is not supported and the session has been abandoned Disable ECM and reattempt the reception Reattempt the fax reception and split the document into two portions corresponding to the ECM and non ECM portions Some devices will attempt to use non ECM for photo mode so this may be associated with a between page encoding change to support photo mode Partshere Troubleshooting Table 6 6 Fax receive error codes continued Error code Description Solution 291 This is not a communication error and it is not expected that this error will occur under non development scenarios Reception has failed because the receiving device is unable to open a file to receive data into May be associated with low memory although low memory should be handle more gracefully than this If the error persists reinitialize the device 292 The sending device has attempted to renegotiate the encoding mode from non JPEG to JPEG This operation is not supported and the session has been abandoned Reattempt the fax reception and split the document into two portions corresponding to the JPEG and non JPEG portions Some devices will attempt to use JPEG for photo mode so this may be associated with a between page encoding change
97. os Not Found An image has been selected that has been deleted The image checked on the bubble sheet has been deleted Memory card has been removed from the memory slot Reinsert the card and reselect the image Printer jam Clear paper path The device has detected a jam Open the scanner assembly and the top cover and then clear the jam See Clearing jams The job should continue to print If it does not try reprinting the job If media jams frequently see Maintenance ProofSheet Error Not Readable The proof sheet cannot be read because the bubbles have not been completely filled the proof sheet is wrinkled the page is skewed on the scanner or the proof sheet is face up This feature has been optimized and tested for use with Genuine HP Toner Supplies variations in color shading can impact the performance of this feature 1 Verify that the proof sheet bubbles completely filled Verify that the proof sheet is face down and properly positioned in the lower right corner 2 Verify that the proof sheet was not printed crookedly on the paper 3 Verify that the proof sheet is not lying crookedly on the scanner glass 4 Verify that you are using genuine HP toner Proof Sheet Flatbed Only A document is in the ADF Remove the document from the ADF and verify that the proof sheet is properly positioned on the scanner Scanner reserved for PC scan A computer is using the device
98. ouch keys and speed dial codes Additionally all faxes stored in memory are cleared 1 Turn off the device 2 Simultaneously press and hold the Enter button and the button and then turn on the device 3 Wait until the message Permanent storage init appears and then release the Enter and buttons When the NVRAM initialization process has been completed the device control panel shows the Ready message Secondary service menu Use the secondary service menu to perform various tests and print service reports The following is a hierarchical diagram of the secondary service menu Table 6 5 Secondary service menu Main menu Submenu Submenu 2ndary Service Service Reports Cont Self Test Extended Keymap Error Report Location USA 1 Yes 2 No Display test none Show FW Version none www partshere com Partshere Troubleshooting Table 6 5 Secondary service menu continued Main menu Submenu Submenu Memory Cards Enabled HP Color LaserJet 2840 all in one only Disabled Color Cal Adjust color m Contrasts Cyan density Magenta density Yellow density Black density Highlights m Cyan density Magenta density Yellow density Black density Midtones Cyan density Magenta density Yellow density Black density Shadows Cyan density Magenta density Yellow density Black density Timing Off 12 hours m 24 hours m 48 hours m 96 hours m 128 hours m
99. phone call to verify that the telephone line is working The device is receiving faxes but is not sending them A communication error might be interrupting the fax job If your device is on a PBX system the PBX system might be generating a dial tone that the device cannot detect A poor telephone connection might exist Change the redial on communication error setting to On Disable the detect dial tone setting Try again later The fax machine to which you are sending might be malfunctioning Try sending to another fax machine www partshere com Partshere Troubleshooting Problem Cause Your telephone line might not be working Solution Do one of the following Turn up the volume on the device and press Start Fax on the control panel If you hear a dial tone the telephone line is working Disconnect the device from the telephone jack and connect a telephone Try to make a telephone call to verify that the telephone line is working Outgoing fax calls continue to be dialed The device automatically redials a fax number if the redial options are setto On To stop the redials while the device is dialing press CanceL Change the redial setting Faxes that you send are not arriving at the receiving fax machine Faxes you send include a block of gray shading at the end of each page The receiving fax machine might be off or might have an error condition su
100. phone line conditions have mode with excessive errors This error does not improved result in the session being terminated immediately Subsequent page transmission can 2 Ifthe error persists select a lower speed for still occur and later pages may be received the initial transmission speed without error 332 337 There is a defect in the sending fax device Send from another device www partshere com Partshere Troubleshooting Table 6 7 Fax send error codes continued Error code 338 342 ECM error 343 Description Solution 344 348 349 353 One of the following has occurred e The sending device has failed to respond to a fax command from the receiving device due to the connection being interrupted 1 Reattempt the fax transmission at a different time when telephone line conditions have improved 2 fax session was using error correction 354 and 355 disable ECM sender has pressed the Cancer button while the reception was in progress e In rare conditions incompatibility between the two devices may cause the sending device to abandon the call 356 361 One of the following has occurred 1 Configure the sending device for document 362 366 ECM error sender has pressed the Cancer button causing the session to be aborted e sending device has encountered system problem such as no paper or a paper jam which has inhibi
101. pick up a piece of media In tray 1 verify that the media was inserted far enough into the tray In optional tray 2 verify that the paper length guide is in the correct position for the media size that you are using Reload the media in the input tray and press Enter to continue the job If the error persists replace the pickup roller See Replacing the tray 1 pickup roller and separation pad No paper type selected www partshere com A paper type might not be selected on the proof sheet Verify that you have marked one of the bubbles corresponding to a paper type Partshere Troubleshooting Table 6 2 Alert and warning messages continued Control panel message No Proof Sheet Found Description The proof sheet is not on the scanner is in the wrong position or is face up Recommended action Verify that the proof sheet is in the scanner and is properly positioned face down in the lower right corner Only 1 memory card at a time More than one memory card has been inserted Remove all but one memory card Page too complex Enter to cont The device could not print the current page because of its complexity Press Enter to clear the message Allow the device to finish the job or press Cancer to cancel the job Photo Job Pending Second photo job was started prior to completion of first job No action required Message will cease when first job completes Phot
102. print cartridge before you installed the cartridge 2 Perform a cartridge high voltage contact test See Cartridge high voltage contact test Heating element test Paper passes between the heating element and a soft pressure roller to fuse toner to the paper 1 Unplug the device for at least ten minutes and then remove the fuser See Replacing the fuser assembly www partshere com Partshere Troubleshooting 2 Measure the fuser heating element resistance NOTE Normal resistance is 14 ohms 10 ohms for the 110 V device 50 ohms 20 ohms for the 220 V device Figure 6 2 Measure the resistance for the heating element www partshere com Partshere Troubleshooting 3 Measure the thermistor resistance NOTE Normal resistance is 1 5 ohms Figure 6 3 Measure the thermistor resistance If no resistance is measured replace the fuser www partshere com Partshere Troubleshooting Cartridge high voltage contact test To check the print cartridge connection points complete the following steps 1 Turn the print cartridge over and visually inspect the two connection points on the ends of the print cartridge If they are dirty or corroded clean the connections If they are damaged replace the print cartridge Figure 6 4 Print cartridge high voltage contacts 2 If the connection points are dirty or corroded then clean the connections If they are damaged then replace the print cartridge
103. rly and then turn on the device If a surge protector is being used remove it Plug the device directly into the wall socket Use the power switch to turn the device on If the error persists upgrade the firmware See Updating or recovering the firmware code If the error persists replace the formatter See Removing the formatter assemblies Engine error The device has experienced an engine error Turn off the power by using the power switch wait at least 30 seconds and then turn on the power and wait for the device to initialize Sensor error The device has experienced an internal Turn off the power by using the power sensor error most likely the top of page switch wait at least 30 seconds and then sensor turn on the power and wait for the device to initialize If the error persists check the top of page sensor See Removing the density sensor and top of page sensor If the error persists replace the DC controller See Removing the DC controller Ia SSS SS Eee SSS www partshere com Partshere Troubleshooting Clearing jams This section contains instructions for clearing jams from the device Media jams occur in the device Occasionally paper or other print media can become jammed during a print job Some causes include the following events The input trays are loaded improperly or overfilled or the media guides are not set properly Optional tray 2 is removed during a print job The t
104. ror The user of the sending device has pressed that device s CanceL button causing the session to be prematurely terminated The receiving device has been holding off the remote device during reception of a large and or complex document due to lack of available memory This hold off time has exceeded the timeout typically 60 seconds used by the sending device and it has terminated the session 1 If the document was large ask the sender to retransmit the document as two or more smaller documents 2 Disable ECM and reattempt the fax reception 247 251 www partshere com The sending device appears to be stuck on N A Partshere Troubleshooting Table 6 6 Fax receive error codes continued Error code 252 Description Telephone line conditions were too poor to receive afax Solution 1 Reattempt the fax reception at a later time when line conditions may have improved 2 Configure the receiving device to start reception at a lower speed 3 If the receiving device received successfully several pages of a larger document ask the sender to transmit the document in several smaller parts 253 The sending device has attempted to initiate a page transmission using a page width that is not supported by the receiving device Ask the sender to reconfigure the fax device to transmit using a normal letter A4 page width 281 The receiving device has not received any data at the start
105. rtridges no messages appear on the device control panel or in the HP Toolbox Replace any low print cartridges See Replacing the print cartridges The imaging drum might be low Replace the imaging drum See Replacing the imaging drum Toner smears appear on the media The media might not meet HP specifications Use media that meets HP specifications See Media specifications If toner smears appear on the leading edge of the paper the media guides are dirty or debris has accumulated in the print path The imaging drum might be low Clean the media guides and the paper path See Cleaning the paper path Replace the imaging drum See Replacing the imaging drum www partshere com Partshere Troubleshooting Problem AaBbCc AoBh c Cause Media might be jammed in the imaging drum Solution Complete the following steps to clear the jam 1 Remove the imaging drum from the device See Replacing the imaging drum 2 Rotate the black dial clearance door lock located on the top left hand side of the imaging drum counterclockwise 3 Lift upward to open the black jam clearance door near the green handle on the top of the imaging drum 4 Remove the media from inside the imaging drum NOTE Do not touch the white sleeve in the imaging drum when removing the media as fingerprints will caus
106. s have been removed 2 Verify that the rear output door is closed See To clear output area jams 3 Verify that the print cartridges and imaging drum are properly installed Look at the control panel messages and follow the instructions to remove and replace the cartridges 4 Verify that the top cover is closed completely ADF motor does not rotate Open the ADF cover and remove any orange shipping tape inside the ADF Verify that the ADF cable is connected correctly to the scanner If the ADF motor still does not rotate verify that the cables from the scanner to the formatter are connected correctly See www partshere com Partshere Troubleshooting Table 6 1 Troubleshooting checklist continued Step Verification step Possible problems Solutions number Removing the scanning assembly If the problem persists replace parts in the following order one at a time the ADF the scanner and then finally the formatter Scanner bulb does not light If the scanner bulb does not light verify that the cables from the scanner to the formatter are connected correctly See Removing the scanning assembly If the error persists replace parts one at a time in the following order until the problem is resolved scanner assembly and finally the formatter see Removing the formatter assemblies 2 Does Ready appearin Control panel shows an error See Control panel messages for a the device contro
107. s set higher than the answering machine setting The answering machine or telephone might not be functioning Connect the telephone or answering machine directly to the telephone line and determine if it works by itself www partshere com Partshere Troubleshooting Media handling problems Use the information in this table to solve problems that involve print media NOTE For information about removing jams see Clearing jams Problem Cause Solution Print is skewed The media input tray might be overloaded Remove some of the media from the input tray The media guides might be incorrectly set broken or missing Verify that the guides are not adjusted too tightly or too loosely against the paper Check for broken or missing guides and replace them if necessary The media might not meet HP specifications Use media that meets HP specifications See Media specifications Pages are curled or wrinkled The media might not meet HP specifications The paper path might be affecting the pages Use media that meets HP specifications See Media specifications Open the straight through output door on the back of the device and use this paper path The media is not stored properly When possible store media in its sealed ream at room temperature The media has been in the input tray too long Turn over the stack of media in the tray or rotate the media
108. shooting Problem Cause Solution The proof sheet might be loaded On the flatbed scanner place the incorrectly original document face down with the upper left corner of the document at the lower right corner of the glass The device will not scan a proof sheet from the ADF The proof sheet might be skewed on Reprint the proof sheet and verify that the paper it is not skewed the page Issues with photo printing Use the table in this section to solve problems with photo printing NOTE The HP Color LaserJet 2840 all in one memory card reader recognizes only files in JPEG file and sRGB color format when printing from the device control panel Problem Cause Solution The wrong photo printed An incorrect memory card might be Verify that the correct memory card is inserted inserted You might have selected the wrong If you cannot remember the number of number from the memory card the photo that you wish to print print an index page to verify the file number The photo did not print The media input tray might be empty Load media into the input tray The memory card might have been Reinsert the card and reprint the photo removed before the device could print the page or the memory card might If the card is correctly inserted use have been inserted incorrectly another memory card If more than one memory type card has the same issue verify that the LED lights when a card inserted If the
109. ted it from receiving any more pages and which has caused it to terminate the session prematurely e A feature incompatibility has been encountered by the sending device causing it to terminate the session reception by clearing any paper jams loading sufficient paper and clearing any other system errors 2 Configure the receiving fax device to use different configurations toggle the ECM state or select a slower reception speed 367 372 373 377 ECM error The sending device appears to be stuck on N A 378 and 379 380 The sending device has failed to issue a valid Send from another device response to a CTC frame This occurs during ECM transmission after multiple retransmissions of erred data 381 One of the following has occurred 1 Reattempt the fax transmission at a different time when telephone line conditions have e The sending device has failed to respond to improved a fax command from the receiving device due to the connection being interrupted 2 If the error persists disable ECM sender has pressed the Cancer button while the reception was in progress 382 The sending fax device has been holding off the 1 Resend the document as two or more www partshere com receiving fax device from continuing the ongoing transmission due to a temporary low memory condition at the sending device If this hold off period exceeds a device s specific timeout value the session will termi
110. ter driver try the PS printer driver AaBbCc AaBbCc If extremely light colors or extremely If possible avoid using extremely light dark colors on screen are not printing or extremely dark colors your software program might interpret extremely light colors as white or extremely dark colors as black The media might not meet Use a different paper such as high HP specifications guality paper that is intended for color laser printers See Media specifications The finish on the printed color page is The media might be too rough Use a smooth paper or print media inconsistent such as a high guality paper that is made for color laser printers Generally smoother media produces AaBbCc Be ag See Media AaBbCc AaQBbCc Media handling problems Use the information in this section when the device experiences media handling problems Print media guidelines For best results make sure that the paper is of good guality and free of cuts nicks tears spots loose particles dust wrinkles voids staples and curled or bent edges For best guality color printing use a smooth type of paper Generally smoother media produces better results For more information see Media specifications If you are unsure what type of paper you are loading such as bond or recycled check the label on the package of paper CAUTION Do not use media that is designe
111. th devices have attempted to start a reception at the same time It is possible to accidentally initiate a fax reception after dialing on many devices if there is no paper in the device or if the paper is not correctly loaded and cannot be sensed by the appropriate document sensor Ensure that a document is ready and correctly loaded in the sending fax device and that the sending device is attempting to initiate a transmission and not a reception 243 and 244 One of the following has occurred e user of the remote device has pressed that device s CanceL button causing the session to be prematurely terminated e sending fax device determined there was a feature incompatibility between the two devices and has terminated the session An example would be when the receiving device wanted to initiate polling but the sending device did not support this mode of operation 1 Confirm that the sender is not inadvertently attempting to poll transmit from the receiving device instead of transmitting to the receiving device This mode of operation must be specially configured on the receiving device If poll transmission from the receiving device is the desired mode of operation confirm that the receiving device has been configured for this operation 2 2 Reconfigure the receiving fax device to use different configuration settings toggle the ECM state and or select a slower reception speed 245 and 246 ECM er
112. the internal paper path In output areas either the top output bin or the rear output door In the automatic document feeder ADF www partshere com Partshere Troubleshooting Find and remove the jam by using the instructions on the following pages If the location of the jam is not obvious first look inside the device Loose toner might remain in the device after ajam This problem typically resolves itself after a few sheets have been printed To clear a media jam inside the device A CAUTION Media jams might result in loose toner on the page If toner gets on your clothing wipe the toner off with a clean cloth wash the items in cold water and air dry Using hot water or heat from a dryer will set the toner in the fabric If you get any toner on your hands wash them in cold water Do not use a sharp object such as a pencil or scissors to remove jammed media 1 On the back of the device open the rear output door and then push down the fuser levers Releasing the fuser levers relieves tension on the device rollers which allows you to remove the jammed pages 2 Push the scanner release button to open the scanner assembly www partshere com Partshere Troubleshooting 4 With both hands grasp the side of the media that is most visible this includes the middle and carefully pull it free from the device 5 When you have removed the jammed media replace the image drum and close the top cover and the sc
113. the paper path might be obstructed Remove any media jammed in the paper path See Clearing jams The media might not meet HP specifications Use a different paper such as high quality paper that is intended for color laser printers See Media specifications The laser scanner might be incorrectly seated in the device Verify that the laser scanner assembly is correctly seated See Removing the laser scanner assembly The printed page contains wrinkles or creases AoBbCc The media might be loaded incorrectly Turn over the stack of paper in the input tray or try rotating the paper 180 in the input tray Verify that the media is loaded correctly and that the media guides are not too tight or too loose against the stack See Loading media The media might not meet HP specifications Use a different paper such as high quality paper that is intended for color laser printers See Media specifications The paper path is curling the media Open the rear output door to print to the straight through paper path Toner appears around the printed characters The media might be loaded incorrectly Turn over the stack of paper in the tray If large amounts of toner have scattered around the characters the paper might have high resistivity Use a different paper such as high quality paper that is intended for color laser printers See Media sp
114. ts replace the developer motor 59 4 Fuser motor error Verify that the fuser is seated completely If the error persists replace the fuser motor If the error still persists replace the DC controller seeRemoving the DC controller 59 99 T2 Clutch error Check the cable connections to the DC controller If the error persists remove the imaging drum and check the clutch If the error persists replace the T2 clutch If the error still persists replace the DC controller seeRemoving the DC controller www partshere com Partshere Troubleshooting Table 6 3 Critical error messages continued Control panel message Description Recommended action 57 Fan Error The device has experienced a problem with Turn off the power by using the power its internal fan switch wait at least 30 seconds and then Turn off then on turn on the power and wait for the device to initialize If the error persists replace the fan See Removing the air duct and fan If the error still persists replace the DC controller See Removing the DC controller 79 Error The device has experienced an internal Turn off the power by using the power firmware error switch wait at least 30 seconds and then Turn off then on turn on the power and wait for the device to initialize If you have recently installed a memory DIMM in the device turn off the device remove the memory DIMM reinstall the DIMM to verify that it is seated prope
115. ture has been optimized and photo from your computer tested for use with Genuine HP Toner Supplies variations in color shading Print photos directly from the memory can impact the performance of this card by using the control panel feature Install HP supplies in the device and reprint the proof sheet The proof sheet might be skewed on Reprint the proof sheet and verify that the paper it is not skewed on the page EE T www partshere com Partshere Troubleshooting Functional tests Engine test The purpose of the engine test is to determine which image formation process is malfunctioning The image formation process can be divided into the following stages Conditioning stage charges the drum Writing stage writes a latent image to the drum with the laser Development stage forms a toner image on the drum Transfer stage transfers the image to paper Separation stage separates the media from the drum Fusing stage applies heat and pressure to make the image on paper permanent Cleaning stage removes excess toner from the drum The engine test switch is inside tray 1 on the left side just below the front cover To print an engine test 1 2 Turn off the device Turn on the device Open tray 1 and load paper NOTE Iftray1 is empty the device will not perform an engine test You cannot perform an engine test from optional tray 2 Press the engine test switch shown below NOTE The form
116. ul in troubleshooting device problems For information about the other tabs on HP Toolbox see HP Toolbox Service menu Use the control panel Service menu to troubleshoot device problems Restoring the factory set defaults Restoring the factory set defaults returns all of the settings to the factory defaults and it also clears the fax header name and phone number CAUTION This procedure clears fax numbers and names that are associated with one touch keys and speed dial codes and deletes any pages that are stored in the memory The procedure then automatically restarts the device 1 On the device control panel press Menu 2 Use the lt or the gt button to select Service and then press ENTER 3 Use the lt or the gt button to select Restore defaults and then press Enter The device automatically restarts NOTE Ifthe Receive to PC setting is turned on you also must delete folder on your computer to completely restore the factory default settings Navigate to C Program Files Hewlett Packard Toolbox Apache Tomcat4 0 webapps Toolbox4 0 products np_color_LaserJet_2800_all_in_one directory and delete the FaxData folder NOTE You also can restore the default settings from HP Toolbox Open HP Toolbox click Device Settings on the System Settings tab click the Service page and then in the Resets section click Restore NOTE You save system settings before restoring the default settings from HP Tool
117. um The fuser rollers might be contaminated Inspect the fuser rollers and clean them if necessary Copies are too light or dark The device settings may be incorrect Verify that the quality settings are correct on the device control panel See the device software Help for more information about changing the settings The device might not be calibrated Calibrate the device See Printer correctly calibration Text is unclear The device settings may be incorrect Verify that the quality settings are correct on the device control panel See the device software Help for more information about changing the settings The device might not be calibrated Calibrate the device See Printer correctly calibration aa aw www partshere com Partshere Troubleshooting Problem Cause The original is of poor guality Solution Try copying another document If the copy is free of defects obtain a better guality original If the error persists a print a document from the computer If the printed page is free of unclear text and if the flatbed glass and ADF scanning window are clean replace the scanning assembly See Removing the scanning assembly Media handling problems Problem Poor print guality or toner adhesion Cause The paper is too moist too rough too heavy too smooth or it is embossed or from a faulty paper lot Solution Try another kind
118. ut acknowledgement Table 6 2 Alert and warning messages Control panel message 10 000x Supply error ADF door is open Description E label can t be read or print cartridge is not properly installed The ADF lid is open or a sensor is malfunctioning Recommended action 1 Reinstall print cartridge 2 Power cycle device 3 If the problem is not solved replace the cartridge Make sure that the ADF lid is closed Remove the ADF and reinstall it If the message persists turn off the power by using the power switch wait at least 30 seconds and then turn on the power and wait for the device to initialize If the error persists replace the ADF See Replacing the ADF Canceled copy Clear document The Cancer button was pressed to cancel the current job while pages were feeding from the ADF The cancel process does not automatically clear the ADF Remove the jammed item See Media jams occur in the automatic document feeder ADF Then clear the items in the ADF tray and start over If the error persists turn off the device and then turn on the device Canceled scan Clear document The Cancer button was pressed to cancel the current job while pages were feeding from the ADF The cancel process does not automatically clear the ADF Remove the jammed item See Media jams occur in the automatic document feeder ADF Then clear the items in the ADF tray and start over If the
119. uter www partshere com If the error persists turn off the device and then turn on the device Software is not installed correctly or an error occurred during software installation Uninstall and then reinstall the device software from the installation CD ROM Verify that you are using the correct installation procedure and the correct port setting The software application or the computer operating system might not be recognizing the scanner driver 1 Verify that the software application is selected the correct scanner driver 2 Switch from the current driver to the alternate driver For example instead of using the WIA scanner driver select the TWAIN driver for the 2800 series Partshere Troubleshooting Table 6 1 Troubleshooting checklist continued Step Verification step Possible problems Solutions number If the error persists turn off the device and then turn on the device 10 Does the device The device does recognize the Remove the card and reinsert it recognize and print from a memory card Insert a memory card and print an index page www partshere com card into the memory card slot Verify that the card is fully inserted into the slot Verify that the memory card type is a supported type Verify that only one card is inserted in the memory card slots Verify that the memory card assembly ribbon cable is connected correctly to the formatter See Repla
120. utomatically each time the device is turned on To calibrate the printer or set up an automatic calibration process complete the following steps 1 On the device control panel press Menu 2 Use the lt or the gt button to select System setup and then press ENTER 3 Use the lt or the gt button to select Print quality and then press Enter 4 Use the lt or the gt button to select Calibrate color and then press Enter 5 Use the lt or the gt button to select Calibrate now or After power on and then press ENTER e Selecting Calibrate now starts the calibration process immediately The control panel displays Calibrating until the process is complete and the device returns to the Ready state e Selecting After power on opens a menu that allows you to set the time period following the device being turned on in which you want the calibration process performed Use the lt or the gt button to select one of the following menu items Immediately 5 minutes 15 minutes 30 minutes 60 minutes m Never Press Enter to save the selection Ex NOTE Calibration must be performed when the device is in the Ready state If the device is processing a job or if it is displaying an error message the device will not calibrate NOTE You also can perform a calibration or change the calibration settings from HP Toolbox Open HP Toolbox click Device Settings on the System Settings tab click the Print Quality page and then
121. y disconnects during partial page reception although it is possible it may also be due to compatibility issues HP Toolbox HP Toolbox is a Web application that you can use for troubleshooting tasks To view HP Toolbox Open HP Toolbox in one of these ways On the Windows desktop double click the HP Toolbox icon On the Windows Start menu click Programs All Programs in Windows XP and then click HP Toolbox Troubleshooting tab HP Toolbox includes a Troubleshooting tab that contains links to the following main pages Control Panel Messages View descriptions of device control panel messages Clearing Jams View information about locating and clearing jams Print Problems View Help topics that can help you solve print problems Scan Problems View Help topics that can help you solve scan problems Copy Problems View Help topics that can help you solve copy problems m Fax Problems View Help topics that can help you solve fax problems www partshere com Partshere Troubleshooting Memory Problems View Help topics that can help you solve memory card problems Connectivity Problems View Help topics that can help you solve networking problems m Troubleshooting Tools Employ such troubleshooting tools as a cleaning page or a color troubleshooting page to maintain the device Animated Demonstrations View animated Help demonstrations for the device A NOTE Other tabs on HP Toolbox might be helpf

HP Color LaserJet 2820/2830/2840 service manual

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