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1. 102 Part numbers xs eR ex den NGA Katha aise 103 Paper pickup assembly 1 of 2 104 Part numbers 105 Paper pickup assembly 2 of 2 106 Part numbers 5 2 uad ache te dca oC ned 107 Fuser assembly 108 Part numbers essei mia RARE LE ex OR 109 Alphabetical parts list 110 Numerical parts list 112 Index vi Chapter Contents Q1342 90910 Q1342 90910 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Model and serial number label 3 Front and side view 6 Back and side view 7 Remove the toner cartridge 15 Remove the media tray 16 Remove the cable pod 17 Remove the left side cover 18 Open the straight through output door 19 Remove the back cover
2. 88 Table 15 Printer connectors 89 Table 16 Technical support websites 92 Table 17 Accessories 93 Table 18 Common fasteners 94 Table 19 Printer tray and cover 95 Table 20 Covers 97 Table 21 Internal components 1 of 2 99 Table 22 Internal components 2 of 2 101 Table 23 Electrical components 103 Table 24 Paper pickup assembly 1 of 2 105 Table 25 Paper pickup assembly 2 0f2 107 Table 26 Fuser assembly 109 Table 27 Alphabetical parts list 110 Table 28 Numerical parts list 112 Q1342 90910 xiii xiv Chapter Tables Q1342 90910 Product information Chapter contents IntrOQUGCllOn i e AA 2 Printer features 2 Product specifications 3 Identification 3 Overview of printer 6 Front and side view 6 Back and side view 7 Warranty statement 8 Extended warranty 9 Toner cartridge information
3. Figure 65 Internal components 1 of 2 Note A and B in the illustration refer to assembly components that are connected together 98 Chapter 4 Parts and diagrams Q1342 90901 Q1342 90901 Part numbers Table 21 Internal components 1 of 2 Ref Part number Description Qty RA0 1182 000CN Shutter lever RA0 1169 000CN Compression spring RG9 1498 000CN Laser scanner assembly RG0 1097 000CN Cable laser scanner RG0 1020 000CN Pickup gear assembly RA0 1184 000CN Cover right support RA0 1172 000CN Gear 17T drive train left plate O N HI Co D RF0 1008 000CN Pickup roller o RG9 1483 000CN Transfer roller o RG0 1084 000CN Left plate assembly RG0 1087 000CN Control panel assembly i N RG0 1090 000CN Connector PCB assembly Internal assemblies 99 Internal components 2 of 2 7 T SL001 Se A SS co Di 5 PR a b Figure 66 Internal componentsm 2 of 2 100 Chapter 4 Parts and diagrams Q1342 90901 Part numbers Table 22 Internal components 2 of 2 Ref Part number Description Qty RAO 1161 000CN Front guide assembly 1 RA0 1173 000CN Lever holder RA0 1185 000CN Fuser plate left RAO 1186 000CN Fuser plate right RH7 5315 000CN Solenoid dc 24 V RA0 1176 000CN Gear 69T RA0 1023 000CN Connecting link
4. 10 Refilled toner cartridges 10 Recycling of toner cartridges 10 Q1342 90910 Chapter contents 1 Introduction This manual contains the necessary information to service the HP LaserJet 1000 Series printer Service topics include printer features product specifications location of model and serial numbers warranty information toner cartridge information part removal procedures troubleshooting procedures and an illustrated parts chapter Hint See the HP LaserJet 1000 Series printer user guide for information about printer installation use and operation Printer features Table 1 HP LaserJet 1000 Series printer features Speed e 10 pages per minute ppm letter size media Resolution 600 dot per inch dpi printing Connectivity e 1 1 universal serial bus USB port e External cable pod formatter e The HP LaserJet 1000 Series printer is designed for use only with an IBM compatible computer Media handling e 250 sheet input tray e 125 sheet output bin Toner e 2500 page toner cartridge life Duty cycle e 1000 page per month average Memory e 1 MB SDRAM Microsoft operating 2 Windows 98 systems supported e Windows 2000 e Windows Millennium Edition Me e Windows XP PCL printer language Enhanced PCL 5e with MS DOS emulation 2 Chapter 1 Product information Q1342 90910 Product specifications Identification The model number a
5. RG0 1083 000CN Right plate assembly RH7 1505 000CN Motor CI NN OI A oO nm o DllD sola RA0 1197 000CN Foot Q1342 90901 Internal assemblies 101 Electrical components Figure 67 Electrical components 102 Chapter 4 Parts and diagrams Q1342 90901 Part numbers Table 23 Electrical components Ref Part number Description Qty RAO 1127 000CN Engine controller case RAO 1128 000CN PCB spacer oo 1 2 3 WT2 5694 000CN Clamp cable 4 RG0 1093 000CN Engine controller PCB assembly 110 to127 V RG0 1094 000CN Engine controller PCB assembly 1 220 to 240 V Q1342 90901 Internal assemblies 103 Paper pickup assembly 1 of 2 Figure 68 Paper pickup assembly 1 of 2 104 Chapter 4 Parts and diagrams Q1342 90901 Part numbers Table 24 Paper pickup assembly 1 of 2 Ref Part number Description Qty RG0 1085 000CN Paper pickup assembly 1 10 RAO 1072 000CN Grounding plate 1 11 RAO 1035 000CN Torsion spring 1 19 RY7 5081 000CN Clutch kit 1 23 RG0 1007 000CN Paper pickup shaft assembly 1 25 RG0 1005 000CN Feed roller holder assembly 1 25A RG0 1072 000CN Paper sensor PCB assembly 1 28 RAO 1200 000CN Torsion spring 1 Q1342 90901 Internal assemblies 105 Paper pickup assembly 2 of 2 22 Paper pickup assembly 2 of 2 Figure 69 A and B in the illu
6. Table 12 Solving paper feed problems continued Problem Cause Solution The printer feeds multiple sheets or jams frequently from the input tray Paper guides are not adjusted properly Slide the guides against the sides of the stack in the input tray to center the paper Make sure the guides are not adjusted too tightly or to loosely against the media stack Paper was not removed from the input tray before refilling the tray Always remove paper from the input tray before refilling it The input tray is overfilled Remove some of the sheets The input tray can hold up to 250 sheets of 20 Ib 75 g m bond weight paper less for heavier paper or from 20 to 30 envelopes The paper was poorly cut by the manufacturer and is sticking together Break the ream of paper by curving it into an upside down u shape this can effectively decrease multifeeds Also try turning the paper around to feed the opposite end first or use a different type of paper The paper does not meet HP s specifications for print media Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family The output capacity was exceeded in the paper output bin Do not allow more than 125 sheets of 20 Ib 75 g m bond weight paper less for heavier paper to fill the paper output bin The pickup roller is dirty Clean the pickup roller See you
7. 88 Chapter 3 Troubleshooting Q1342 90910 Location of printer connectors J210 J605 J211 Figure 62 Printer connectors Table 15 Printer connectors Ref Description Remarks J603 Laser scanner 4 pin connector JP617 LED status panel 3 pin connector J601 ECU ribbon cable Harness is soldered to the PCB J605 Cable pod 24 pin serial connector J411 Paper feed sensor Harness is soldered to the sensor J801 Laser scanner ribbon cable ae TT connector J101 Motor 4 pin connector Note For connectors referenced in this illustration but not listed in this table see Location of ECU Connectors on page 88 Q1342 90910 Troubleshooting tools 89 90 Chapter 3 Troubleshooting Q1342 90910 Q1342 90901 Parts and diagrams Chapter contents Ordering parts and supplies 92 Pana a Sie ee am RU n Ge NORTE Te Qe Rn ue ed 92 Related documentation and software 92 Consumables 92 Accessories 93 How to use the parts lists and diagrams 94 Common hardware 94 Media tray and cable pod 95 COVGIS etat xr ur e CRURA RUE RO Rite re 96 Internal assemblies 98 Internal components 1 of 2 98 Internal components 2 of 2 100 Electri
8. 20 Remove the ECU PCB fuse 21 Remove the output sensor 22 Remove the motor fuser removed for clarity 23 Remove the right side cover mounting screw 24 Release the right side cover tab 25 Remove the right side cover 26 Disconnect the solenoid wire harness 27 Remove the solenoid 28 Remove the top cover 29 Remove the connector assembly 30 Remove the LED status panel 31 Remove the front cover mounting screws 32 Remove the front cover 33 Release the toner cartridge door connecting links 34 Remove the toner cartridge door 35 Remove the front guide assembly 36 Release the front guide assembly tabs right side 37 Release the front guide assembly tabs left side 38 Remove the transfer roller 39 Disconnect the laser scanner harnessing 40 Remove the laser scanner 41 Remove the right fuser bracket 42 Remove the left fuser bracket 43 Remove the fuser mounting screws 44 Remove the fuser assembly 45 Remove the output rollers 46 Remove the face up rollers 47 Remove the gear clutch assembly 48
9. 46 Face up roller ies ax sae Kha n RR as 47 Right plate assembly 48 Pickup assembly 50 Pickup roller assembly 53 Paper lift plate assembly 54 Left plate assembly 55 Bottom assemblies 56 EGU cr DIET 56 Paper feed assembly 60 3 Troubleshooting Basic troubleshooting 64 zc c PP TT 67 LED status lights 67 Additional error messages 70 Checking the toner cartridge 71 To redistribute toner in the cartridge 71 Solving image quality problems 72 Solving print image quality problems 72 Solving paper feed problems 77 Functional checks 79 Engine test 22204 eens aber honte RR 79 Printing an engine test 79 Half self test functional check 81 To perform a half self test check 81 To perform other checks 81 Drum rotation functional check 82 Heating element check 83 High voltage power supply check 84 T
10. Never operate the printer with the laser scanner assembly exposed The reflected beam although invisible can damage your eyes When servicing the printer replace the top cover before operating the printer The printer contains electrostatic discharge ESD sensitive components Always perform service work at an ESD protected workstation If an ESD protected workstation is not available discharge body static and ground the printer chassis before servicing the printer Required tools 2 Phillips screwdriver with magnetic tip Small flat blade screwdriver Needle nose pliers penlight optional Use of a Posidrive screwdriver damages screw heads on the printer Use a 2 Phillips screwdriver To install a self tapping screw first turn it counterclockwise to align it with the existing thread pattern then carefully turn it clockwise to tighten Do not overtighten Before performing service Unplug the power cable and remove all media from the printer e Place the printer on an ESD mat or discharge body static and ground the printer chassis e Remove the toner cartridge and media tray See Toner cartridge on page 15 and Media tray on page 16 Removal and replacement strategy 13 Parts removal order Use the following diagram to determine the order in which parts must be removed Toner cartridge Media tray Cable pod Left side cover L Back cover ECU PCB fuse Output sensor
11. xi Figure 38 Remove the right plate assembly mounting screws 49 Figure 39 Remove the pickup assembly mounting screw 50 Figure 40 Remove the top pickup assembly mounting screws 51 Figure 41 Remove the metal shield 52 Figure 42 Remove the pickup roller assembly 53 Figure 43 Remove the paper lift plate assembly 54 Figure 44 Remove the left plate assembly 55 Figure 45 Disconnect the ECU wire harnesses 56 Figure 46 Remove the ECU mounting screws 57 Figure 47 Remove the ECU pan 58 Figure 48 Remove the ECU PCB from the pan 59 Figure 49 Remove wire harnesses 60 Figure 50 Remove the paper feed assembly 61 Figure 51 Release the paper feed roller 62 Figure 52 LED status lights location 67 Figure 53 Engine test button 79 Figure 54 Connectors for the heating element check 83 Figure 55 High voltage connection points right side 84 Figure 56 High voltage connection points left side 84 Figure 57 High voltage connector assembly right side 85 Figure 58 High voltage connector assembly left side 85 Figure 59 Override SW301 0 0 c eee eee 86 Figure 60 Repetitive image defect ruler 87 Figure 61 HP LaserJe
12. 30 FFONE COVED sip uk exe dre dae e DOR e han Dex a 32 Toner cartridge door 34 Front guide ics mg mem e e 36 Internal assemblies 39 Transfer roller llle eee 39 Laser scanner assembly 40 Output rollers 46 Face up roller 47 Right plate assembly 48 Right plate assembly 48 Right plate assembly 48 Chapter contents 11 Pickup assembly Pickup roller assembly Paper lift plate assembly Left plate assembly Bottom assemblies 12 Chapter 2 Removal and replacement Q1342 90910 Removal and replacement strategy WARNING CAUTION a ESD Note Hint Q1342 90910 This chapter documents the removal and replacement of field replaceable units FRUs only Replacement is generally the reverse of removal Occasionally notes and hints are included to provide directions for difficult or critical replacement procedures Unplug the power cord from the power source before servicing the printer Failure to follow this warning can result in personal injury or damage to the printer Certain functional checks during troubleshooting require power supplied to the printer However power should be disconnected when removing assemblies
13. Figure 14 Release the right side cover tab Q1342 90910 External assemblies 25 5 While continuing to press the release tab grasp the top of the cover and rotate it away from the printer Figure 15 Remove the right side cover 26 Chapter 2 Removal and replacement Q1342 90910 Figure 16 Q1342 90910 Solenoid 1 Remove the following assemblies Toner cartridge media tray and formatter pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back and right side covers See Left side cover on page 18 through Right side cover on page 24 2 Unplug the brown solenoid wire connector callout 1 from the ECU and carefully unwind the solenoid harness from the harness lance points callout 2 Disconnect the solenoid wire harness External assemblies 27 Remove the screw callout 3 on the solenoid Gently thread the solenoid cable through the hole callout 4 in the right side plate 5 Lift the solenoid off of the printer Figure 17 Remove the solenoid 28 Chapter 2 Removal and replacement Q1342 90910 Figure 18 Q1342 90910 Top cover 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back and right side covers See Left side cover on page 18 through Right side cover on page 24 Open the toner cartridge door Loosen but do not remove the two
14. Troubleshooting tools 87 Repetitive image defect ruler 87 Location of ECU Connectors 88 Chapter contents 63 Basic troubleshooting Table 7 Basic troubleshooting Verification steps Possible problems Solutions Does the printer turn on successfully When the product is connected to a grounded power source the printer motor should continuously rotate for about six seconds Power is not being supplied to the printer There are open wire harness connectors There are pinched or frayed wire harness wires The motor or ECU has failed 1 Verify that the product is plugged in 2 Verify that the power cable is functional and the cable is plugged into the correct power source 110 V or 220 V ac 3 Verify that FU102 the ECU PCB fuse on the ECU is not open 4 Verify that the fuser levers are in the up position 5 Verify that the printer door is closed 6 Verify that the motor connector is seated into the ECU 7 Verify that the motor is correctly mounted on the printer chassis 8 Check for and replace pinched or frayed wire harness wires 9 Replace the motor 10 Replace the ECU Do engine tests print Print an engine test See page 79 The engine test should print without paper feed problems or print quality problems The printed page is filled with evenly spaced horizontal lines approximately 1 mm ap
15. it is too moist or too rough Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family Parts of the page around the edges are not printing AaBbCcc AaBbCc AaBbCc The printer cannot print to the edge of the paper The printer has minimum margins on each edge of 4 23 mm 0 167 inch To get the image to fit into this printable area slightly reduce the size of the image The reduction setting is set incorrectly Check the reduction setting in the Print or Setup window from within the program you are using 72 Chapter 3 Troubleshooting Q1342 90910 Table 11 Solving print image quality problems continued Problem Cause Solution Toner specks appear on the The media you are using does not meet HP s specifications for example it is too Make sure that the media meets specifications detailed in the Print Media printed also referred to as dropouts AaBbCc AaBbcc AaBbbCc AaBoCc Aa BoCc printed page moist or too rough Guide for the HP LaserJet printer family P The printer needs to be cleaned Clean the printer See the HP LaserJet 1000 Series user guide AaBbGc AaBbOc AaBbCc AaBbCc AGBBEC Characters A single sheet of paper is defective Try reprinting the job are only The print density needs to be adjusted Adjust the print density from the dev
16. 31 Remove the right fuser bracket 42 Chapter 2 Removal and replacement Q1342 90910 Figure 32 Q1342 90910 5 Remove three screws callout 3 from the left fuser bracket 6 Remove the bracket Remove the left fuser bracket Internal assemblies 43 7 Remove two screws one shown in callout 4 one from each side of the printer right side shown Figure 33 Remove the fuser mounting screws 44 Chapter 2 Removal and replacement Q1342 90910 Figure 34 Q1342 90910 8 Unplug the fuser cable connector callout 5 by pressing and releasing the clip on the back of the connector 9 Unplug four smaller cable connectors callout 6 from the ECU and remove the harnesses from the fuser harness lance points 10 Unplug the spade connector callout 7 11 Slightly spread the chassis to release the fuser locator pins and then lift the fuser assembly out of the printer Remove the fuser assembly Internal assemblies 45 Output rollers Face down delivery assembly 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Fuser assembly See Fuser assembly on page 42 2 Remove two screws callout 1 and lift the face down delivery assembly away from the fuser assembly Figure 35 Remove the output rol
17. 6 troubleshooting 78 black dots troubleshooting 73 76 blinking lights 67 bypassing formatter 79 C cable pod firmware initialization 67 locating 7 part number 95 removing and replacing 17 cartridge door locating 6 part number 97 removing 34 cartridges drum rotation check 82 part numbers 93 recycling 10 refilled 10 removing 15 storing 4 troubleshooting 71 84 characters misprinted 73 75 checklists preservice 13 toner cartridge inspection 71 troubleshooting 64 Q1342 90910 checks drum rotation 82 engine 64 79 half self test 81 heating element 83 high voltage power supply 84 paper path 86 circuit capacity specifications 4 classes HP Technical Training 92 cleaning high voltage power supply connection points 84 printer 73 toner cloth ordering 93 clipped pages troubleshooting 72 components diagrams and part numbers 98 102 connector PCB assembly part number 99 removing 30 consumables ordering 92 cord power 93 covers removing back 19 diagrams and part numbers 96 front 32 left side 18 right side 24 top 29 curl troubleshooting 76 77 Customer Care Online 92 cut off pages 72 D dimensions product 4 documentation ordering 92 door toner cartridge locating 6 part number 97 removing 34 dots troubleshooting 73 76 drivers ordering 92 dropouts troubleshooting 73 75 drum inspecting 71 testing 81 82 troubleshooting 73 duty cycle 2 Chapter Index 115 ECU elect
18. Hint When replacing the LED status panel assembly verify that the locator tab callout 3 is correctly positioned in the provided hole Q1342 90910 External assemblies 31 Front cover 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Close the toner cartridge door Loosen two screws one shown in callout 1 one on each side of the cover Figure 21 Remove the front cover mounting screws 32 Chapter 2 Removal and replacement Q1342 90910 Figure 22 Q1342 90910 4 Pull forward on the top of the front cover to release the three front cover tabs callout 2 5 Slightly raise the front of the printer and rotate the top of the cover toward you to release the tabs on the bottom of the front cover Remove the front cover Remove the front cover External assemblies 33 Toner cartridge door 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Front cover See Front cover on page 32 Open the toner cartridge door Press the two small tabs callout 1 on the inside of the right connecting link to re
19. Light symbol Meaning of symbol Light off O Light on O Light blinking Errors 67 Table 9 Status lights messages Message Possible causes Solutions OO The Ready and Attention lights are not illuminated 1 Verify that the power cord is connected to the printer and the power is turned on 2 The cable pod is not connected or has failed Verify that the cable pod is connected and fully seated 3 Replace the cable pod 4 Replace the LED status panel assembly yk SV WM Tue The Ready and Attention lights blink The cable pod is initializing the firmware or the unit is printing a cleaning page No action is needed O C The Ready light illuminates The printer is ready to print The Ready light blinks The printer is receiving and processing data No action is needed The Ready light indicates that the cable pod has initialized the firmware The firmware is initialized each time the printer power is turned on or when the cable pod is connected to the printer with the printer power turned on Wait for the job to print The Attention light blinks The printer requires user intervention A User Intervention message appears on the computer screen Follow the directions in the message to clear the error Possible errors requiring user intervention are Out of paper Media jam Toner door open Toner cartridge missing The Ready light illuminate
20. Motor Right cover Transfer roller Solenoid Top Cover L Connector PCB LED status panel I Front cover L Toner cartridge door L Front guide L Fuser assembly see note Right plate assembly I Pickup assembly Pickup roller Paper lift L Left plate assembly Laser scanner assembly Fuser assembly Face down roller Face up roller ECU pan Paper feed assembly Note The fuser assembly is intentionally listed twice 14 Chapter 2 Removal and replacement Q1342 90910 Toner cartridge CAUTION To prevent damage do not expose the toner cartridge to light Cover it with a piece of paper Note You will feel resistance when you open the toner cartridge door 1 Open the toner cartridge door 2 Remove the toner cartridge Figure 4 Remove the toner cartridge Q1342 90910 Removal and replacement strategy 15 External assemblies Media tray 1 Lift off the media tray cover callout 1 2 Slightly tilt up the media tray and pull it away from the printer Figure 5 Remove the media tray 16 Chapter 2 Removal and replacement Q1342 90910 Cable pod 1 Turn the two pod thumbscrews counterclockwise until they turn freely 2 Grasp the pod and gently pull it away from the printer Figure 6 Remove the cable pod Hint For easier installation start tightening the top thumbscrew do not fully tighten and then tighten the bottom thumbscrew when replacing the cable pod
21. checks If no image appears on the photosensitive drum perform these checks 1 Make sure you removed the entire length of the sealing tape from the toner cartridge before you installed the cartridge 2 Perform a drum rotation functional check See Drum rotation functional check on page 82 3 Perform a high voltage power supply check See High voltage power supply check on page 84 Functional checks 81 Drum rotation functional check The photosensitive drum located in the toner cartridge must rotate for the print process to work The photosensitive drum receives its drive from the main drive assembly Hint This test is especially important if refilled toner cartridges have been used 1 Open the printer door Remove the toner cartridge Mark the drive gear on the cartridge with a felt tipped marker Note the position of the mark 4 Install the toner cartridge and close the printer door The start up sequence should rotate the drum enough to move the mark 5 Open the printer and inspect the gear that was marked in step 3 Verify that the mark moved If the mark did not move inspect the main drive assembly to make sure that it is meshing with the toner cartridge gears If the drive gears appear functional and the drum does not move replace the toner cartridge 82 Chapter 3 Troubleshooting Q1342 90910 Heating element check Paper passes between the heating element and a soft pressure roller to fuse toner to
22. continued Problem Cause Solution The printed The environment is too warm or too 1 Both high temperatures and high page has curls humid humidity levels cause media to curl or waves Move the printer to a different environment 2 Use a different media Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family The media was in the input tray too long Turn the stack of media over and put it back in the tray Rotate the media 180 and put it back in the tray The standard paper path is not working correctly Open the straight through output door on the back of the printer and use this paper path The fuser temperature is too high Select Optimize for in the Paper tab of the printer driver Make sure that it is set for the appropriate media Large amounts of toner are scattered around the characters The media is resisting the toner 1 Use a different media Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family 2 Turn the stack of media over and put it back in the tray 3 Use media that is designed for laser printers 76 Chapter 3 Troubleshooting Q1342 90910 Solving paper feed problems Use the following tables to solve problems related to moving print media or documents through the printer Table 12 Solving paper feed
23. the connections Figure 55 Toner cartridge high voltage connection points right side Figure 56 Toner cartridge high voltage connection points left side 84 Chapter 3 Troubleshooting Q1342 90910 Q1342 90910 To check the high voltage connector assembly The assembly uses three spring loaded pins to contact the toner cartridge drum ground callout 1 charging callout 2 and developing roller callout 3 Verify that the pins are not dirty or corroded and that the spring loading action is functional If any of the pins are dirty clean them using isopropyl alcohol only If any are damaged replace the high voltage connector assembly High voltage connector assembly left side Functional checks 85 Figure 59 Paper path check If paper is not being picked up or is not moving through the paper path you might want to observe all of the paper motion activities Overriding the door interlock SW301 allows you to observe motor rotation solenoid action kick plate motion paper pickup roller motion drive roller transfer roller fuser roller and gear and delivery roller motion To override SW301 Override SW301 1 Remove the left side cover See Left side cover on page 18 Disconnect the door swing arms Install the toner cartridge which will press SW301 Press the laser scanner interlock switch callout 1 on the laser scanner While SW301 and the laser scanner interlock are engage
24. the front guide assembly r Figure 27 Release the front guide assembly tabs left side 38 Chapter 2 Removal and replacement Q1342 90910 Internal assemblies Transfer roller 1 Remove the following assemblies e Toner cartridge and media tray See Toner cartridge on page 15 through Media tray on page 16 2 Use needle nose pliers to gently squeeze the two small tabs on the transfer roller 3 Liftthe transfer roller up slide it to the right and lift it out of the printer CAUTION Skin oils can damage the transfer roller sponge Do nottouch the black transfer roller sponge Figure 28 Remove the transfer roller Hint Do not misplace the small grounding spring that is underneath the right side of the transfer roller Q1342 90910 Internal assemblies 39 Laser scanner assembly 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 CAUTION Never operate the printer with the laser scanner assembly exposed The reflected beam although invisible can damage your eyes When servicing the printer replace the top cover before operating the printer 2 Disconnect the ribbon cable from its socket callout 1 on the laser scanner 3 Disconnect the wire harness cable connector callout 2 from the conn
25. 10 to 80 percent relative humidity plugged into an ac no condensation outlet Printer storage Temperature 20 to 60 C 4 to 140 F environment printer e Humidity 10 to 90 percent relative humidity not plugged into an no condensation ac outlet Toner cartridge Temperature 20 to 40 C 4 to 104 F storage environment Humidity 10 to 90 percent relative humidity printer not plugged no condensation into an ac outlet Table 4 Power specifications Category Specification Power e 110 Vac 12 percent 60 3 Hz 127 Vac requirements 12 percent 60 3 Hz Or e 220 Vac 12 percent 50 60 3 Hz e 240 Vac 12 percent 50 3 Hz WARNING Power sources are not interchangeable CAUTION To prevent damage to the printer always connect it to a surge protected power source 4 Chapter 1 Product information Q1342 90910 Q1342 90910 Table 4 Power specifications continued capacity Category Specification Power consumption 285 W in continuous copy mode Power consumption 7 W idle Power consumption OW off Minimum 45Aat115V recommended circuit 2 3 A at 230 V Table 5 Print operating acoustical emissions specifications Category Specification Sound power level 6 1 dB A Lwaa 1 bel 10 decibels Sound pressure level 56 dB A LpAm operator position Sound pressure level 48 dB A LpAm byst
26. 2 5694 000CN 3 67 Clutch kit RY7 5081 000CN 19 68 Compression spring RA0 1169 000CN 2 65 Connecting link RA0 1023 000CN 66 Connector PCB assembly RG0 1090 000CN 12 65 Control panel assembly RG0 1087 000CN 11 65 Cover front RA0 1177 000CN 1 64 Cover left side RA0 1403 000CN 3 64 Cover right side assembly RF0 1073 000CN 2 64 Cover right support RA0 1184 000CN 6 65 Delivery sensor PCB assembly RG0 1082 000CN 26 70 Engine controller case RAO0 1127 000CN 1 67 Engine controller PCB assembly RG0 1093 000CN 4 67 110 127 V Engine controller PCB assembly RG0 1094 000CN 4 67 220 240 V Face down delivery assembly RG0 1010 000CN 70 Face down tray assembly RG0 1070 000CN 63 Face up roller RF0 1003 000CN 70 Feed roller holder assembly RG0 1005 000CN 25 68 Foot plate assemblies RA0 1197 000CN 10 66 Foot rubber paper pickup assembly RA0 1003 000CN 2 69 Fuser assembly 110 V RG9 1493 000CN 70 Fuser assembly 220 V RG9 1494 000CN 70 Fuser plate left RA0 1185 000CN 3 66 Fuser plate right RA0 1186 000CN 4 66 Gear 17T fuser assembly RA0 1089 000CN 6 70 Gear 17T drive train left plate side RA0 1172 000CN JA 65 110 Chapter 4 Parts and diagrams Q1342 90901 Table 27 Alphabetical parts list continued Description Part number Ref Figure Gear 29T RA0 1088 000CN 5 70 Gear 69T RAO 1176 000CN 6 66 Grounding plate RA0 1072 000CN 10 68 Guid
27. BbC The printer driver is not set for the correct 1 Select Optimize for in the Paper tab media of the printer driver Select the correct media This affects the current print job only 2 Select the correct media through the device configuration utility Characters The media is too slick Try a different media Make sure that the are misformed media meets specifications detailed in and are the Print Media Guide for the producing HP LaserJet printer family hollow The printer driver is not set for the correct 1 Select Optimize for in the Paper tab images media of the printer driver Select the correct media This affects the current print job only 2 Select the correct media through the device configuration utility Pages are skewed AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc The media is loaded incorrectly Reload the media and make sure that the media guides are not adjusted too tightly in or too loosely against the media stack The input tray is too full Remove some of the sheets The input tray can hold up to 250 sheets of 20 Ib 75 g m bond weight paper less for heavier paper or from 20 to 30 envelopes The type and quality of media you are using does not meet HP s specifications Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family Q1342 90910 Errors 75 Table 11 Solving print image quality problems
28. Make sure to fully tighten both thumbscrews Q1342 90910 External assemblies 17 Left side cover 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Open the toner cartridge door Remove the single left cover retaining screw callout 1 A Pull out on the rear of the cover and rotate it away from the printer Figure 7 Remove the left side cover Hint It might be necessary to release the left side cover locking tab found under the printer Hint The left side retaining screw is slightly longer than similar screws used in the printer Keep this screw separated from other screws while servicing the printer to avoid misplacing it 18 Chapter 2 Removal and replacement Q1342 90910 Figure 8 Q1342 90910 Back cover 1 Remove the following assemblies e Toner cartridge media tray cable pod and left side cover See Toner cartridge on page 15 through Left side cover on page 18 2 Openthe straight through output door callout 1 3 Remove the single screw callout 2 from the back of the printer Open the straight through output door External assemblies 19 4 Release the two locking tabs not shown The left tab is located under the printer and the right tab is located on the right side of the printer near the cable pod port 5 Press down and hold the two green jam release levers callout 3 and p
29. N Fuser assembly 110 V 70 RG0 1010 000CN Face down delivery assembly 4 70 RG0 1013 000CN Paper pickup tray assembly 21 63 RG0 1016 000CN Back cover assembly 4 64 RG0 1020 000CN Pickup gear assembly 5 65 RG0 1026 000CN Fuser assembly 220 V 70 RG0 1070 000CN Face down tray assembly 5 63 RG0 1072 000CN Paper sensor PCB assembly 25A 68 RG0 1082 000CN Delivery sensor PCB assembly 26 70 RG0 1084 000CN Left plate assembly 10 65 RG0 1087 000CN Control panel assembly 11 65 RG0 1090 000CN Connector PCB assembly 12 65 RG0 1091 000CN Toner cartridge door assembly 6 64 RG0 1093 000CN Engine controller PCB assembly 4 67 110 to127 V RG0 1094 000CN Engine controller PCB assembly 4 67 220 to 240 V RG0 1097 000CN Cable laser scanner 4 65 RG07 1083 000CN Right plate assembly 8 66 RG9 1483 000CN Transfer roller 9 65 RG9 1498 000CN Laser scanner assembly 3 65 RH7 1505 000CN Motor 9 66 RH7 5315 000CN Solenoid dc 24 V 5 66 RY7 5081 000CN Clutch kit 19 68 RY7 5082 000CN Screw kit contains a full set of screws for the HP LaserJet 1000 and 1200 series printers WT2 5694 000CN Clamp cable 3 67 Q1342 90901 Numerical parts list 113 114 Chapter 4 Parts and diagrams Q1342 90901 Index A accessories ordering 93 acoustical emissions 5 alignment specifications 5 troubleshooting 75 77 alphabetical list part numbers 110 Attention light 67 back cover part number 97 removing 19 background gray 74 bin output capacity 2 locating
30. ON WHETHER WRITTEN OR ORAL TO THE EXTENT ALLOWED BY LOCAL LAW ANY IMPLIED WARRANTY OR CONDITION OR MERCHANTABILITY SATISFACTORY QUALITY OR FITNESS FOR A PARTICULAR PURPOSE IS LIMITED TO THE DURATION OF THE EXPRESS WARRANTY SET FORTH ABOVE Some countries states or provinces do not allow limitations on the duration of an implied warranty so the above limitation or exclusion might not apply to you This warranty gives you specific legal rights and you might also have other rights that vary from country to country state to state or province to province 8 Chapter 1 Product information Q1342 90910 7 TO THE EXTENT ALLOWED BY LOCAL LAW THE REMEDIES IN THIS WARRANTY STATEMENT ARE YOUR SOLE AND EXCLUSIVE REMEDIES EXCEPT AS INDICATED ABOVE IN NO EVENT WILL HP OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT SPECIAL INCIDENTAL CONSEQUENTIAL INCLUDING LOST PROFIT OR DATA OR OTHER DAMAGE WHETHER BASED IN CONTRACT TORT OR OTHERWISE Some countries states or provinces do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you FOR CONSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND THE WARRANTY TERMS CONTAINED IN THIS STATEMENT EXCEPT TO THE EXTENT LAWFULLY PERMITTED DO NOT EXCLUDE RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU Extended warranty HP SupportPack provides
31. Q1342 90901 Accessories Table 17 Accessories Item Description Part number Toner cartridge 2500 page cartridge C7115A 2500 page cartridge service part C7115A 60101 Toner cloth 5090 3379 Cables and Power cord U S Canada 8120 8382 D M Power cord Europe 8121 0516 Power cord Switzerland 8121 0519 Power cord UK 8121 0517 Power cord Denmark 8121 0518 Power cord South Africa India 8121 0520 Power cord Thailand 8120 8871 Power cord China 8120 8707 Power cord Australia 8121 0524 Power cord Brazil 8120 6869 Power cord Israel 8120 6800 Q1342 90901 Accessories 93 How to use the parts lists and diagrams The figures in this chapter show the major subassemblies in the printer and their component parts A part number table follows each exploded assembly illustration Each table lists the reference designator the associated part number for the item and a description of the part Parts that have no reference designator or part number are not field replaceable units and cannot be ordered While looking for a part number pay careful attention to the voltage listed in the description column to make sure that the part number selected is for the correct printer model Common hardware The printer has three common fasteners See table 18 for a description of these screw types Table 18 Common fasteners Example Description Screw machine truss head S
32. ander position Table 6 Skew specifications Category Print skew left Specification 0 8 percent 2 mm on media 250 mm in length for cut sheet media 1 5 percent 3 3 mm on media 220 mm in length for cut sheet media 0 87 percent 1 65 mm on media190 mm in width for cut sheet media Print skew right 1 5 percent 3 3 mm on media 220 mm in width for envelopes postcards A5 and cut sheet media Cut sheet leading edge skew 0 87 percent 1 6 mm on media 190 mm in width Product specifications 5 Overview of printer Front and side view Figure 2 Front and side view LED status lights Output bin Toner cartridge door Input tray Sliding side media guides Long media support for the input tray N Oa oO BB Q N Input tray cover 6 Chapter 1 Product information Q1342 90910 Back and side view Figure 3 Back and side view 8 Media jam release levers 9 Port for the USB cable pod 10 Engine test button 11 Power receptacle 12 Straight through output door Q1342 90910 Overview of printer 7 Warranty statement DURATION OF WARRANTY One year from date of purchase 1 HP warrants to you the end user customer that HP hardware accessories and supplies will be free from defects in materials and workmanship after the date of purchase for the period specified above The customer is responsible for maintaining proof of date of purchase If HP receives notice of such d
33. ars on the computer screen Table 10 Error messages no LED status panel pattern Message Solutions Printer not 1 Verify that the power cord is connected to the printer and the power is turned on responding the Ready light should be illuminated 2 Disconnect the cable pod cable from the printer and the computer Reconnect the cable pod cable at both ends 3 Close all software applications and restart the computer Cannotaccess 1 Close all software applications and reboot the computer port inuseby 2 Try running only one software application at a time another application Illegal A computer system resource error memory or hard disk error occurred in Windows operation Reboot the computer General protection fault Spool 32 error Hint 70 Chapter 3 To help prevent the Illegal operation General protection fault Spool 32 error try running fewer software programs at the same time Close programs rather than minimizing them Screen savers virus checkers fax software and other memory resident applications might be using computer resources needed by the printer When attempting to print avoid memory intensive tasks like sending a fax or using multi media programs Delete all temp file name tmp files from Temp subdirectories such as CWindows Temp Try printing at a lower resolution especially if your print job contains complex graphics Troubleshooting Q1342 90910 Hint Q1342 90910 C
34. art The engine test was successful The engine test button is pressed but nothing happens 1 The toner cartridge is missing or the toner cartridge door is open Install a toner cartridge and or close the door 2 A faulty toner cartridge to ECU connection exists Verify that all connectors to the ECU are firmly seated and contacts are clean 3 A faulty connector PCB to ECU connection exists Replace the connector assembly The motor rotates on and off about 1 second and then stops no paper feed 1 Verify that the laser scanner connectors are fully seated 2 Replace the laser scanner The motor rotates on off on off in short cycles and then stops no paper feed 1 Verify that the fuser wire connectors are fully seated 2 Replace the fuser 64 Chapter 3 Troubleshooting Q1342 90910 Table 7 Basic troubleshooting continued Verification steps Possible problems Solutions Do engine tests print continued Hint The printer attempts to pick up paper three times and then the motor stops no paper feed 1 The media tray is empty Place media in the tray 2 The printer is dirty Clean the printer 3 Replace the pickup roller 4 Replace the paper pickup assembly The printer attempts to pick up paper three times and the paper feeds but comes out blank 1 the paper feed assembly connections are faulty Verify that the all paper f
35. cal components 102 Paper pickup assembly 1 of 2 104 Paper pickup assembly 2 of 2 106 Fuser assembly 108 Alphabetical parts list 110 Numerical parts list 112 Chapter contents 91 Ordering parts and supplies Parts Order replacement parts from the following website http www hp com ssg parts direct order html Related documentation and software Order documentation and software from the companies listed in table 16 some documentation and software is available at the following websites Table 16 Technical support websites HP Customer Care Online http www hp com go support Software drivers support documentation and answers to frequently asked questions HP Technical Training http www hp com go North America resellertraining Classes and schedules Parts http outfield external hp com spi Parts information welcome htm Consumables Printer consumables are listed in the HP LaserJet 1000 series printer user guide Consumables are available directly from Hewlett Packard at the following numbers e U S 1 800 538 8787 Canada 1 800 387 3154 in Toronto 1 416 671 8383 United Kingdom 0734 441212 e Germany 0130 3322 Contact your local HP Parts Coordinator for other local phone numbers 92 Chapter 4 Parts and diagrams
36. coverage for the HP hardware product and all HP supplied internal components The hardware maintenance warranty covers a three year period from the date of the HP product purchase The customer must purchase the HP SupportPack document number is 9036 within 180 days of the HP product purchase Customers can contact the nearest HP authorized dealer about this service Q1342 90910 Warranty statement 9 Toner cartridge information The toner cartridge is designed to simplify replacement of the major consumable parts The toner cartridge contains the printing mechanism and a supply of toner At five percent page coverage a toner cartridge prints approximately 2500 pages However a toner cartridge should print more pages if it regularly prints pages with less coverage such as short memos The cartridge might print fewer pages if heavy or bold print is used For best results always use a toner cartridge before the expiration date stamped on the toner cartridge box Refilled toner cartridges Although Hewlett Packard does not prohibit the use of refilled toner cartridges during the warranty period or while the printer is under a maintenance contract it is not recommended for the following reasons Repairs resulting from the use of refilled toner cartridges are not covered under Hewlett Packard warranty or maintenance contracts Hewlett Packard has no control or process to ensure that a refilled toner cartridge functions at the hig
37. crew star ve Screw self tapping Hint The left cover retaining screw is slightly longer than similar screws used in the printer Keep this screw separated from other screws while servicing the printer to avoid misplacing it Order part number RY7 5082 000CN for a screw kit containing a complete set of screws for the HP LaserJet 1000 and 1200 series printers 94 Chapter 4 Parts and diagrams Q1342 90901 Media tray and cable pod Figure 63 Media tray and cable pod Part numbers Table 19 Printer tray and cover Ref Part number Description Qty 1 Q1342 60001 Cable pod assembly 1 RG0 1013 000CN Paper pickup tray 1 RA0 1405 000CN Paper pickup tray cover 1 Q1342 90901 Media tray and cable pod 95 Covers Figure 64 HP LaserJet 1000 covers 96 Chapter 4 Parts and diagrams Q1342 90901 Part numbers Table 20 Covers Ref Part number Description Qty RA0 1177 000CN Cover front RF0 1073 000CN Cover right side assembly RA0 1403 000CN Cover left side RG0 1016 000CN Back cover assembly RA0 1074 000CN Top cover assembly RG0 1091 000CN Toner cartridge door assembly NO a m OINI 7121 8042 HP jewel a oo RY7 5082 000CN This screw kit contains a full set of screws for the HP LaserJet 1000 and 1200 series printers Q1342 90901 Covers 97 Internal assemblies Internal components 1 of 2
38. d perform an engine test to observe paper motion See Engine test on page 79 86 Chapter 3 Troubleshooting Q1342 90910 Troubleshooting tools Repetitive image defect ruler First occurrence of print defect Toner developing cylinder 37 7 mm 1 5 in Toner primary charging roller 37 7 mm 1 5 in HOO ON Transfer roller 45 2 mm 1 8 in Heating element 56 5 mm 2 2 in Pressure roller 62 8 mm 2 5 in _ ks Toner drum 75 4 mm 3 0 in gt Figure 60 Repetitive image defect ruler Q1342 90910 Troubleshooting tools 87 Location of ECU Connectors Figure 61 J305 J210 bog n 208 04 HP LaserJet 1000 ECU PCB Table 14 ECU connectors FH101 INL101 J102 FH102 Ref Description Remarks SW301 Door open detection switch Microswitch J301 Toner cartridge high voltage connector Connection to developing cylinder J304 Toner cartridge high voltage connector Connection to primary charging roller J305 Formater connector Spade connector black wire J210 Output sensor 3 pin connector J211 Paper feed sensor 3 pin connector J206 Fuser assembly I F 4 pin connector J203 Solenoid 2 pin connector INL 101 Power cord see Accessories on page 93 J102 Fuser assembly power 3 pin connector Pino Eou PB hse E J401 Motor Harness is soldered to the PCB
39. e amount of background shading Move AaBbCc the printer to a different location or AaBbCc decrease the background shading AaBbCc through the device configuration utility AaBbCc The toner cartridge needs to be Replace the toner cartridge See Toner AaBbCc replaced cartridge on page 15 Toner smears appear on the printed page AaBbCc AaBbCc AaBbCc AaBt Cc AaBbCc If the toner smears appear on the leading edge of the media the media guides are dirty Wipe the media guides with a dry lint free cloth The media you are using does not meet HP s specifications for example it is too moist or too rough Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family The toner cartridge needs to be replaced Replace the toner cartridge The fuser temperature is too low Select Optimize for in the Paper tab of the printer driver Make sure that it is set for the appropriate media The toner is loose and it does not stay attached to the printed page The inside of the printer is dirty Clean the printer See your HP LaserJet 1000 Series user guide The media you are using does not meet HP s specifications for example it is too moist or too rough Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family The toner cartridge needs to be replaced R
40. e front RAO 1161 000CN 1 66 HP jewel 7121 8042 7 64 Laser scanner assembly RG9 1498 000CN 3 65 Left plate assembly RG0 1084 000CN 10 65 Lever holder RA0 1173 000CN 2 66 Motor RH7 1505 000CN 9 66 Optional copier scanner R37 5020 000CN 3 63 Paper lift plate assembly RG0 1006 000CN 22 69 Paper pickup assembly RG0 1085 000CN 68 Paper pickup cover assembly RA0 1405 000CN 3 63 Paper pickup shaft assembly RG0 1007 000CN 23 68 Paper sensor PCB assembly RG0 1072 000CN 25A 68 PCB spacer RA0 1128 000CN 2 67 Pickup gear assembly RG0 1020 000CN 5 65 Pickup roller RF0 1008 000CN 8 65 Printer pickup tray assembly RG0 1013 000CN 2 63 Right plate assembly RG0 1083 000CN 8 66 Screw kit contains a full set of screws for the RY7 5082 000CN HP LaserJet 1000 series printers Separation pad RF0 1014 000CN 24 69 Shutter lever RAO0 1182 000CN 1 65 Solenoid dc 24 V RH7 5315 000CN 5 66 Toner cartridge door assembly RG0 1091 000CN 6 64 Top cover assembly RF0 1074 000CN 5 64 Torsion spring RA0 1035 000CN 11 68 Torsion spring RA0 1200 000CN 28 68 Transfer roller RG9 1483 000CN 9 65 Q1342 90901 Alphabetical parts list 111 Numerical parts list Table 28 Numerical parts list Part Number Description Ref Figure 7121 8042 HP jewel 7 64 Q1342 60001 Cable pod 1 63 RA0 1003 000CN Foot rubber paper pickup assembly 2 69 RA0 1003 000CN Foot rubber plate as
41. ector assembly and unlace the harness from the cable lance Figure 29 Disconnect the laser scanner harnessing 40 Chapter 2 Removal and replacement Q1342 90910 4 Release the two shutter retaining tabs callout 3 and remove the shutter and shutter spring CAUTION Usecare when releasing the shutter retaining tabs The tabs are plastic and can be broken Only bend the tabs enough to release the shutter lever 5 Remove the four screws callout 4 that fasten the scanner to the printer chassis and remove the laser scanner Figure 30 Remove the laser scanner CAUTION When replacing the laser scanner verify that it is fully seated on the printer chassis The laser scanner can be damaged when the mounting screws are tightened if it is not fully seated Hint Insert the spring into the hole on the laser scanner before you snap the shutter lever back into place Q1342 90910 Internal assemblies 41 Fuser assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Remove two screws callout 1 from the right fuser bracket Remove a third screw callout 2 from behind the large gear on the right fuser plate Rotate the gear counter clockwise to align a hole in the gear with the screw head Remove the bracket Figure
42. eed assembly connectors to the ECU are firmly seated 2 Replace the paper feed assembly The printer attempts to pick up paper three times and the laser scanner emits a high pitched whine but the motor does not turn 1 Verify that the motor connector is firmly seated 2 Replace the motor The printed page is filled with evenly spaced horizontal lines but the toner can be easily smeared 1 Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family 2 A faulty fuser assembly power connection exists Verify that the fuser power connectors are firmly seated 3 Replace the fuser The engine test page begins to print but the page stops just after tripping the output sensor flag 1 Verify that the output sensor on the back of the fuser connector is firmly seated at the ECU end 2 Replace the output sensor When you attempt to troubleshoot engine test page problems it might be necessary to unplug the printer from the power source power off and then plug it back into the power source power on before printing a subsequent engine test page Verify that the printer was successfully turned on see verification step 1 3 The printer motor rotates for about six seconds and stops but the LED status READY light does not illuminate When the printer is successfully turned on the green Ready status light is illuminated and the print
43. efects during the warranty period HP will at its option either repair or replace products which prove to be defective Any replacement products may be either new or like new provided that it has functionality at least equal to that of the product being replaced 2 HP warrants to you that HP software will not fail to execute its programming instructions after the date of purchase for the period specified above due to defects in material and workmanship when properly installed and used If HP receives notice of such defects during the warranty period HP will replace CUA media which does not execute its programming instructions due to such efects 3 HP does not warrant that the operation of HP products will be uninterrupted or error free If HP is unable within a reasonable time to repair or replace any product to a condition as warranted you will be entitled to a refund of the purchase price upon prompt return of the product 4 HP products may contain remanufactured parts equivalent to a new in performance or may have been subject to incidental use 5 Warranty does not apply to defects resulting from a improper or inadequate maintenance or calibration b software interfacing parts or supplies not supplied by HP c unauthorized modification or misuse d operation outside of the published environmental specifications for the product or d improper site preparation or maintenance 6 HPMAKES NO OTHER EXPRESS WARRANTY OR CONDITI
44. ential Shock Hazard Always follow basic safety precautions when using this product to reduce risk of injury from fire or electric shock 1 Read and understand all instructions in the user guide 2 Observe all warnings and instructions marked on the product 3 Use only a grounded electrical outlet when connecting the HP LaserJet 1000 printer to a power source If you don t know whether the outlet is grounded check with a qualified electrician 4 Donottouch the contacts on the end of any of the Sockets on the HP LaserJet 1000 printer Replace damaged cords immediately 5 Unplug this product from wall outlets before cleaning 6 Donotinstall or use this product near water or when you are wet 7 Install the product securely on a stable surface 8 Install the product in a protected location where no one can step on or trip over the power cord and the power cord will not be damaged 9 Ifthe product does not operate normally see the online user guide 10 Refer all servicing questions to qualified personnel Information regarding FCC Class B Parts 15 and 68 requirements can be found in the user guide Q1342 90910 Contents Figures Tables 1 Product information Introduction Printer features Product specifications Identification Specification tables Overview of print
45. eplace the toner cartridge The high voltage contacts are dirty or damaged See see High voltage power supply check on page 84 The high voltage contacts are are not in proper contact with the toner cartridge Verify the high voltage contacts are installed correctly and are properly contacting the toner cartridge The printer driver is not set for the correct media 1 Select Optimize for in the Paper tab of the printer driver Select the correct media 2 Select the correct media through the device configuration utility The power strip is not working correctly Plug the printer directly into an ac outlet 74 Chapter 3 Troubleshooting Q1342 90910 Table 11 Solving print image quality problems continued appear on the printed page Problem Cause Solution Repetitive If the repetitive mark occurs at equal Use the defect ruler to identify the vertical distance between occurrences either the spacing Check the appropriate defects toner cartridge or a printer roller is component and replace if necessary damaged see Repetitive image defect ruler on page 87 The internal parts have toner on them If the defects occur on the back of the page the problem will probably correct AaBbCE itself after a few more printed pages pabang Otherwise clean the printer See your AaBbCC HP LaserJet 1000 Series user guide AaBbCc a Aa
46. er Front and side view Back and side view Warranty statement Extended warranty Toner cartridge information Refilled toner cartridges Recycling of toner cartridges 2 Removal and replacement Removal and replacement strategy Required tools Before performing service Parts removal order Toner cartridge External assemblies Media tray Cable pod Left side cover Right side cover Solenoid TOP COVER uc xo gue ERR at ae lee fe eg ee ae 29 Connector PCB Assembly 30 LED status panel 31 FONT COVEN se dead tea eed SE Lad RR ONY a ey d 32 Toner cartridge door 34 Front guide 234 244844 oed ER ex DR eve Peele Ea 36 Internal assemblies 39 Transfer roller 39 Laser scanner assembly 40 Fuser assembly 42 Output rollers 46 Face down delivery assembly
47. er is ready to process a job Note Wire harness connectors are open Harness wires are pinched or frayed The cable pod connector assembly or LED status panel has failed 1 Verify that the LED status panel connector to the connector assembly is firmly seated 2 Verify that the connector assembly to ECU flat ribbon cable is firmly seated at the connector assembly end 3 Replace the cable pod 4 Replace the connector PCB assembly 5 Replace the LED status light panel The LED lights will not operate if the cable pod is not connected to the printer Q1342 90910 Basic troubleshooting 65 Table 7 Basic troubleshooting continued Verification steps Possible problems Solutions Is the software installed correctly The software is not installed or an error occurred during software installation Uninstall and then reinstall the product software Make sure you use the correct installation procedure and the correct port setting Does the product print from the computer Connect the cable pod to the printer and the USB cable to the computer Use a word processing application to send a print job to the printer Is the printed image of poor quality The cable is not connected correctly Reconnect the cable An incorrect printer driver is selected Select the correct printer driver Other devices are connected to the USB port Disconnect the ot
48. es and replace as necessary The media weight or surface finish does not meet HP s specifications Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family 80 Chapter 3 Troubleshooting Q1342 90910 Q1342 90910 Half self test functional check The electrophotographic process can be subdivided into the following stages e Image formation stage charges the drum and 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 Cleaning stage removes excess toner from the drum Fusing stage applies heat and pressure to make the image on paper permanent To perform a half self test check The purpose of the half self test check is to determine which process is malfunctioning 1 Print a engine test page 2 Open the printer door after the paper advances half way through the printer about five seconds after the motor begins rotation The leading edge of the paper should have advanced past the toner cartridge Remove the toner cartridge Open the toner cartridge drum shield to view the drum surface If a dark and distinct toner image is present on the drum surface assume that the first two functions of the electrophotographic process are functioning image formation and development Troubleshoot the failure as a transfer or fusing problem To perform other
49. fore installing a new cartridge or when toner is low in the installed cartridge redistribute the toner by rotating the cartridge back and forth five or six times Errors 71 Table 11 Solving print image quality problems Solving image quality problems Use the following tables to help solve problems with printed pages If the problem occurs when printing see table 11 Solving print image quality problems on page 72 Also see table 12 Solving paper feed problems on page 77 Solving print image quality problems Problem Cause Solution Pages do not print The printer is not plugged in Make sure that the printer is plugged into a live wall outlet or power strip The Ready light illuminates when the printer is ready to print The cable pod cable is loose Check that the cable between the printer and the computer is securely connected at both ends The paper feed assembly is not functioning or incorrectly installed Verify that the pickup assembly pickup roller and paper lift plate assembly are installed correctly and working properly The tape was not removed from the toner cartridge Remove the toner cartridge remove the tape and reinstalling the toner cartridge See Toner cartridge on page 15 The toner cartridge is out of toner Replace the toner cartridge See Toner cartridge on page 15 The media you are using does not meet HP s specifications for example
50. h level of reliability of a new HP LaserJet toner cartridge Hewlett Packard also cannot predict the long term reliability effect on the printer from using different toner formulations found in refilled cartridges The print quality of HP LaserJet toner cartridges influences the customer s perception of the printer Hewlett Packard has no control over the actual print quality of a refilled toner cartridge Recycling of toner cartridges In order to reduce waste Hewlett Packard offers a recycling program Cartridge components that do not wear out are recycled Plastics and other materials are recycled Hewlett Packard pays the shipping costs from the user to the recycling plant within the United States To join this recycling effort follow the instructions inside the toner cartridge box 10 Chapter 1 Product information Q1342 90910 Q1342 90910 Hemoval and replacement Chapter contents Required tools 13 Before performing service 13 Toner cartridge eee eee 15 Parts removal order 14 Toner cartridge 15 Left side cover 18 Back COVER uc sas teuer kae Rhe e n Rabe nc RR ra 19 Back COVE esl bc hx eR oie bees eh ae Eder 19 ECU PCB fuse 21 Auro PED 23 Sol told s exce vec tex hero pert Ree tes 27 Connector PCB Assembly
51. hecking the toner cartridge Image formation defects are many times the result of problems in the toner cartridge If there is any doubt always replace the toner cartridge before troubleshooting image defects Use the following checklist to make sure that the toner cartridge is still operable 1 Verify that the toner cartridge is seated properly L Verify that the cartridge has toner in it see the hint below L1 Check the expiration date stamped on the toner cartridge box LH Check the toner cartridge to see if it has been disassembled or refilled LI Inspect the toner cartridge to see if toner is leaking through worn seals O Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or scratched Do not touch the drum Skin oils transferred to the drum by touching it contaminate the photosensitive surface and can cause spotting and image defects L1 Blurred areas on printed pages indicate that the photosensitive drum in the cartridge has been overexposed to light Overexposure to light causes permanent damage to the photosensitive drum The toner cartridge should be replaced Weigh the toner cartridge to approximate how much toner is left in it A toner cartridge weighs approximately 746 grams 30 5 oz when it is full approximately 630 grams 27 0 oz when the print first fades and approximately 617 grams 26 2 oz when the cartridge is empty To redistribute toner in the cartridge Be
52. her devices and try again to print A USB port driver problem exists 1 Reset the computer BIOS USB settings See the computer user guide for instructions 2 Try a different USB port The cable pod has failed Various print image quality problems Replace the cable pod 1 Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family 2 Identify the image quality problem See Solving image quality problems on page 72 Does the media jam in the printer paper path Various printer paper path problems Isolate the printer paper path problem See Paper path check on page 86 66 Chapter 3 Troubleshooting Q1342 90910 Errors Figure 52 Q1342 90910 LED status lights The status lights give the user information about the status of the printer Until the cable pod initializes the firmware only the ready and fatal error light patterns can appear If the cable pod is not connected when the printer power is turned on the motor rotates for about 6 seconds but the status lights remain off the firmware is not initialized If the cable pod is connected while printer power is on the printer turns off and then on the motor rotates for about 6 seconds and the cable pod initializes the firmware Ready light green Attention light amber LED status lights location Table 8 LED status lights legend
53. ice partially configuration utility The moisture content of the paper is inconsistent or the paper has moist or wet spots on the surface Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family The paper was damaged by inconsistent manufacturing processes Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family A draft mode or EconoMode is selected in the software Clear the printer software EconoMode check box The toner cartridge is defective Replace the toner cartridge See Toner cartridge on page 15 Vertical lines appear on the printed page Bb Bb Bb Bb Bb rrr The photosensitive drum inside the toner cartridge is scratched Replace the toner cartridge See Toner cartridge on page 15 The fuser is damaged or has an obstruction Replace the fuser See Fuser assembly on page 42 Q1342 90910 Errors 73 Table 11 Solving print image quality problems continued Problem Cause Solution The printed The print density setting is set too heavy Decrease the amount of background page has a shading through the device configuration gray utility background The media basis weight is too heavy Change the media to a light basis weight The humidity level is too low Very low humidity can increase th
54. invent service hp LaserJet 1000 series printer service Copyright Information 2001 Hewlett Packard Company All Rights Reserved Reproduction adaptations or translation without prior written permission is prohibited except as allowed under copyright laws Part number Q1342 90901 First edition August 2001 Printed in USA Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with respect to this information HEWLETT PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for any direct indirect incidental consequential or other damage alleged in connection with the furnishing or use of this information NOTICE TO U S GOVERNMENT USERS RESTRICTED RIGHTS COMMERCIAL COMPUTER SOFTWARE Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data Clause at DFARS 52 227 7013 Hewlett Packard Company 11311 Chinden Boulevard Boise Idaho 83714 U S A Trademark Credits Microsoft Windows and MS DOS are U S registered trademarks of Microsoft Corporation TrueType is a U S trademark of Apple Computer Inc All other products mentioned herein might be trademarks of their respective companies Safety Information WARNING Pot
55. ks toner 73 76 speed specifications 2 Spool 32 error message 70 spots troubleshooting 73 76 star screws 94 static precautions 18 status lights error messages 67 removing 31 troubleshooting 65 storage environment specifications 4 storing paper 80 straight through output door 7 supplies ordering 92 support technical 92 SupportPack HP 9 SW301 overriding 86 switches engine test 79 paper path test 86 T technical support 92 Technical Training 92 Chapter Index 119 telephone numbers ordering supplies 92 temperature fuser settings 74 specifications printer environment 4 storing paper 80 troubleshooting paper curl 76 tests drum rotation 82 engine 64 79 half self functional check 81 heating element 83 high voltage power supply 84 paper path 86 text troubleshooting 73 75 toner cloth ordering 93 loose troubleshooting 74 76 redistributing 71 smears troubleshooting 74 specks troubleshooting 73 76 toner cartridge door locating 6 part number 97 removing 34 toner cartridges drum rotation check 82 part numbers 93 recycling 10 refilled 10 removing 15 storing 4 troubleshooting 71 84 tools required 13 top cover part number 97 removing 29 Training HP Technical 92 transfer roller part number 99 removing 39 tray input capacity 75 feeding problems 78 locating 6 part number 95 removing 16 120 Chapter Index troubleshooting characters 73 75 checklist 64 curl 76 77 drum rotati
56. lease it Repeat on the left side Figure 23 Release the toner cartridge door connecting links 34 Chapter 2 Removal and replacement Q1342 90910 5 Unhook the right side toner cartridge door hinge and slide the toner cartridge door toward the left to remove it LL anseurs Figure 24 Remove the toner cartridge door CAUTION When the cartridge door is replaced the hinge must be behind the door stop callout 2 The door will not close if the door is installed with the hinge in front of or on top of the door stop Hint After the toner cartridge door is removed it is easy to remove the two connecting links Q1342 90910 External assemblies 35 Front guide 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 e Front cover and toner cartridge door See Front cover on page 32 through Toner cartridge door on page 34 2 Remove the two front guide mounting screws callout 1 Figure 25 Remove the front guide assembly 36 Chapter 2 Removal and replacement Q1342 90910 3 Release the two right side front guide tabs callout 2 Figure 26 Release the front guide assembly tabs right side Q1342 90910 External assemblies 37 4 Release the two front guide tabs on the left side callout 3 5 Remove
57. lers 46 Chapter 2 Removal and replacement Q1342 90910 Face up roller 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Fuser assembly See Fuser assembly on page 42 2 Turn the fuser assembly over and remove the gear callout 1 from the face up roller 3 Release the tab callout 2 on the face up roller bushing and rotate the bushing forward until the pin releases Remove the bushing 4 Slide the face up roller toward the gear end until the roller clears the roller retainer opposite the gear end and lift it out of the fuser assembly Figure 36 Remove the face up rollers Note When replacing the face up roller bushing verify that the locking pin is seated correctly to prevent the roller from slipping out of the roller retainer Q1342 90910 Internal assemblies 47 Right plate assembly 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Unlace the solenoid wire harness See Solenoid on page 27 e Front cover toner cartridge door and front guide See Front cover on page 32 through Fr
58. move the three ECU PCB mounting screws callout 8 12 Remove the two power cord receptacle plate mounting screws callout 9 13 Lift the ECU PCB off of the ECU pan Figure 48 Remove the ECU PCB from the pan Note The ECU board is replaced as a single unit Only soldered cables ship with the replacement board If other cables are damaged during removal you will have to order replacements Q1342 90910 Bottom assemblies 59 Paper feed assembly 1 Remove the following assemblies Toner cartridge media tray and formatter pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back and right side covers See Left side cover on page 18 through Right side cover on page 24 Right plate assembly See Right plate assembly on page 48 ECU pan See ECU pan on page 56 Do not remove the gear shield instead of the right plate assembly The gear shield retains some of the gears Removing the gear shield can cause loose gears and springs to be misplaced 2 Unwind the optic paper sensor and solenoid cables from the cable guides callout 1 on the paper feed mechanism 3 If necessary remove one screw callout 2 from the paper sensor PCB assembly and remove the sensor PCB 4 Remove the two mounting screws callout 3 from the paper feed mechanism Remove wire harnesses 60 Chapter 2 Removal and replacement Q1342 90910 5 Apply slight pressure to disengage the paper feed assembly bushings fr
59. nd serial numbers are listed on an identification label located on the bottom of the printer The serial number contains information about the country of origin and the revision level production code and production number of the printer The label also identifies power rating and regulatory information inven BOISE IDAHO 83714 U S A With FCC Standards FOR HOME OR OFFICE USE Uy HEWLETT PACKARD J 11311 CHINDEN BLVD C A Tested To Comply Fabriqu le Q1342A Maritactureds This product conforms with 110 127V AC LTE CDRH radiation performance 50 60 Hz 3 5A 3 5A June 2001 C us 6560 standard 21 CFR chapter 1 sub chapter J Numero de S rie USTED Serial No CNBR212347 Complies with Canadian EMC Class B requirements NOM 1 f NYCE Conforme la Classe B des normes Canadiennes de compatibilit letromagn tiques Made in China A lt lt CEM gt gt Fabriqu au Chine RS1 1107 ie d 3902H018 CZ1 Figure 1 Model and serial number label Q1342 90910 Product specifications 3 Specification tables Table 2 Physical specifications Category Specification Height 253 mm 10 inches Depth 486 mm 19 1 inches Width 415 mm 16 3 inches Weight toner 7 3 kg 16 1 Ib cartridge installed Table 3 Environmental specifications Category Specification Operating e Temperature 15 to 32 5 C 59 to 90 5 F environment printer Humidity
60. nector PCB Remove the laser scanner harness from the wire clip Remove the eight mounting screws callout 1 and lift the left plate assembly off of the printer Remove the left plate assembly Internal assemblies 55 Bottom assemblies ECU pan 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back and right side covers See Left side cover on page 18 through Right side cover on page 24 Unplug the three spade connectors callout 1 Disconnect the motor cable connector callout 2 Unplug the fuser cable connector callout 3 by pressing and releasing the clip on the back of the connector 5 Unplug the remaining four wire harness connectors callout 4 from the ECU Figure 45 Disconnect the ECU wire harnesses 56 Chapter 2 Removal and replacement Q1342 90910 Figure 46 Q1342 90910 6 Unplug the ribbon cable from the ECU to the connector assembly PCB callout 5 7 Remove two screws callout 6 on each side of the printer left side shown Remove the ECU mounting screws Bottom assemblies 57 8 Gently pull the two sides of the printer away from the ECU pan to release the ECU pan 9 Slide the ECU pan out and away from the printer Figure 47 Remove the ECU pan 58 Chapter 2 Removal and replacement Q1342 90910 10 Remove the motor wire harness from the wire clip callout 7 11 Re
61. ngine test troubleshooting Problem Cause Solution Engine test print page is filled with evenly spaced horizontal lines Successful engine test No action required No engine test Various possible causes See Basic troubleshooting on page 64 page prints item 2 Print page Paper curl is inherent to the laser printing Make sure that the media meets comes out processes and occurs when paper is specifications detailed in the Print Media curled or subjected to heat Paper curl tends to Guide for the HP LaserJet printer family wrinkled relax as the paper cools while resting on a flat surface Paper is curled or wrinkled when using Open the straight through output door on the paper output bin the back of the printer and use this paper path Reset the fuser mode to the default Paper is not stored properly Whenever possible store paper in its sealed ream at room temperature The fuser temperature is too high Select Optimize for in the Paper tab of the printer driver software Make sure that it is set for the appropriate media Print is The input tray is overfilled Remove some of the media misaligned on The paper guides are not set correctly Be sure to center the paper with the side the page are broken or are missing media guides Verify that the guides are skewed not adjusted too tightly or too loosely pages against the media stack Check for broken or missing guid
62. o check the toner cartridge connection points 84 To check the high voltage connector assembly 85 Paper path check 86 To override SW301 86 Troubleshooting tools 87 iv Chapter Contents Q1342 90910 Q1342 90910 Repetitive image defect ruler 87 Location of ECU Connectors 88 Location of printer connectors 89 4 Parts and diagrams Ordering parts and supplies 92 PAN nkaraan Darasa Dios Na aba dalang Aor tux i am deed add 92 Related documentation and software 92 Consumables 92 ACCeSSOllOS uiua pasos ck ark aub e Panda da die tte 93 How to use the parts lists and diagrams 94 Common hardware 94 Media tray and cable pod 95 Part numbers 95 COVGIS i ass exa eed de sans autos cr te ond vai 96 Part numbers 97 Internal assemblies 98 Internal components 1 of 2 98 Part numbers aoe sae dace ee bbe da ad eee wade n 99 Internal components 2 of 2 100 Part numbers isses RR se UR asia ha 101 Electrical components
63. om the roller shaft callout 4 Lift the paper feed assembly up and out of the printer Figure 50 Remove the paper feed assembly Hint When replacing the paper feed assembly insert the two tabs callout 5 on the paper feed assembly into the provided recesses callout 6 near the roller Insert the bottom of the sensor flag into the hole in front of the paper feed roller shaft and verify that the sensor flag moves freely Q1342 90910 Bottom assemblies 61 6 Use needle nose pliers to push the two tabs away from the end of the paper feed roller shaft 7 Pull the paper feed roller shaft away from the gear end and remove it Figure 51 Release the paper feed roller 62 Chapter 2 Removal and replacement Q1342 90910 Q1342 90910 Troubleshooting Chapter contents Basic troubleshooting 64 EITOIS eo wind eae AUR EM EAE ROUES GER EUER 67 LED status lights 67 Checking the toner cartridge 71 Solving image quality problems 72 Solving paper feed problems 77 Functional checks cece eee eee eee 79 Engine test 79 Half self test functional check 81 Drum rotation functional check 82 Heating element check 83 High voltage power supply check 84 Paper path check 86
64. on test 82 ECU PCB wiring diagrams 88 edges not printing 72 engine test 64 79 error messages 67 70 feeding problems 77 gray background 74 half self test 81 heating element check 83 high voltage power supply check 84 jams 78 LEDs 65 67 lines 73 paper path check 86 power 64 printer not responding 70 printing 66 72 repetitive defects 75 87 skew 75 77 software 66 toner problems 73 74 76 truss head screws 94 U USB cable pod firmware initialization 67 locating 7 part number 95 removing 17 V vertical lines troubleshooting 73 W warranty extended 9 refilled cartridges impact on 10 statement 8 wave troubleshooting 76 77 websites 92 weight printer 4 toner cartridge 71 Windows versions supported 2 wiring diagrams 88 wrinkled pages troubleshooting 77 Y yellow light 67 Q1342 90910 invent copyright O 2001 Hewlett Packard Company http www hp com support li 1000 Q1342 90910
65. ont guide on page 36 e Fuser assembly See Fuser assembly on page 42 2 Lift the small white tab to release the clutch and slide the clutch to the left toward the pickup roller Hint Keep the two halves of the clutch gear together to avoid losing the internal clutch spring Figure 37 Remove the gear clutch assembly 48 Chapter 2 Removal and replacement Q1342 90910 Figure 38 Q1342 90910 3 Remove seven mounting screws callout 2 if the motor is installed disconnect the motor wire harness 4 Apply slight pressure and pull the right plate assembly off of the printer Remove the right plate assembly mounting screws Internal assemblies 49 Pickup assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Front cover toner cartridge door and front guide See Front cover on page 32 through Front guide on page 36 Fuser assembly See Fuser assembly on page 42 Right plate assembly See Right plate assembly on page 48 Remove the side pickup assembly mounting screw callout 1 Figure 39 Remove the pickup assembly mounting screw 50 Chapter 2 Removal and replacement Q1342 90910 3 Remove the two top mounting screws callout 2 Figure 40 Remove the top pickup assembly moun
66. orms supported 2 pliers required 13 pod cable firmware initialization 67 locating 7 part number 95 removing 17 ports See cable pod Posidrive screwdrivers 13 power cord ordering 93 high voltage testing 84 receptacle locating 7 specifications 4 troubleshooting 64 preservice checklist 13 print cartridges See toner cartridges printer drivers ordering 92 printer languages supported 2 printing troubleshooting 66 70 72 Q quality repetitive image defect ruler 87 specifications 2 troubleshooting 72 R Ready light 67 recycling toner cartridges 10 redistributing toner 71 refilled toner cartridges 10 118 Chapter Index removing back cover 19 cable pod 17 connector PCB assembly 30 ECU pan 56 ECU PCB fuse 21 face down delivery assembly 46 face up roller 47 front cover 32 front guide 36 fuser assembly 42 laser scanner assembly 40 LED status panel 31 left plate assembly 55 left side cover 18 media tray 16 motor 23 order for 14 output rollers 46 output sensor 22 paper feed assembly 60 paper lift plate assembly 54 pickup assembly 50 pickup roller 53 procedures for 13 right plate assembly 48 right side cover 24 solenoid 27 toner cartridge 15 toner cartridge door 34 top cover 29 transfer roller 39 repetitive defects troubleshooting 75 87 Q1342 90910 replacing back cover 19 cable pod 17 connector PCB assembly 30 ECU pan 56 ECU PCB fuse 21 face down delivery assembly 46 face up roller 47 front co
67. page 18 through Top cover on page 29 Front cover toner cartridge door and front guide See Front cover on page 32 through Front guide on page 36 Fuser assembly See Fuser assembly on page 42 Right plate assembly and pickup assembly See Right plate assembly on page 48 through Pickup assembly on page 50 Grasp the large plastic tabs callout 1 on each side of the paper lift plate and rotate it forward CAUTION To avoid damaging them do not pull on the paper guides 3 I Lift the paper lift plate up and out of the bushings callout 2 Figure 43 Remove the paper lift plate assembly Hint When replacing the paper lift plate verify that the lift plate springs callout 3 are fully seated onto the circular spring positioning pedestals 54 Chapter 2 Removal and replacement Q1342 90910 Figure 44 Q1342 90910 Left plate assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Front cover toner cartridge door and front guide See Front cover on page 32 through Front guide on page 36 Fuser assembly See Fuser assembly on page 42 Disconnect the laser scanner ribbon cable at the laser scanner end Disconnect the laser scanner wire harness and the ECU ribbon cable from the con
68. problems Problem Cause Solution Pages are Paper curl is inherent to the laser printing Make sure that the media meets coming out processes and occurs when paper is specifications detailed in the Print Media curled or subjected to heat Paper curl tends to Guide for the HP LaserJet printer family wrinkled relax as the paper cools while resting on a flat surface Paper is curled or wrinkled when using Open the straight through output door on the paper output bin the back of the printer and use this paper path Reset the fuser mode to the default Paper is not stored properly Whenever possible store paper in its sealed ream at room temperature The fuser temperature is too high Select Optimize for in the Paper tab of the printer driver Make sure that it is set for the appropriate media Print is The input tray is overfilled Remove some of the media misaligned on The media guides are not set correctly Be sure to center the media by using the the page are broken or are missing side media guides Verify that the guides skewed are not adjusted too tightly or too loosely pages against the media stack Check for broken or missing guides and replace as necessary The media weight or surface finish does not meet HP s specifications Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family Q1342 90910 Solving paper feed problems 77
69. r HP LaserJet 1000 Series user guide The pickup roller is damaged Replace the pickup roller See Pickup roller assembly on page 53 The separation pad is dirty Clean the separation pad See your HP LaserJet 1000 Series user guide The separation pad is damaged or not installed correctly Replace or reinstall the separation pad See your HP LaserJet 1000 Series user guide The separation pad is not installed correctly Reinstall the separation pad See your HP LaserJet 1000 Series user guide A sensor is not operating properly Check the sensors to make sure that none of them are jammed If a sensor cannot be adjusted to properly operate replace the sensor 78 Chapter 3 Troubleshooting Q1342 90910 Functional checks Figure 53 Q1342 90910 Engine test The engine test is used to verify that the print engine is functioning correctly The cable pod is bypassed during an engine test so the engine test is useful for isolating printer problems The engine test prints horizontal lines in the printable area of a page This page is also useful for checking and adjusting registration Printing an engine test The engine test switch is below the cable pod connector assembly To print an engine test page depress the engine test button callout 1 A single test page prints see Engine test troubleshooting on page 80 Engine test button Functional checks 79 Table 13 E
70. rew and remove the sensor Figure 11 Remove the output sensor 22 Chapter 2 Removal and replacement Q1342 90910 Motor 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side and back covers See Left side cover on page 18 through Back cover on page 19 Hint Removing the fuser is not necessary but doing so will make replacing the motor easier See Fuser assembly on page 42 2 Disconnect the motor cable connector callout 1 on the side of the motor 3 Remove the two screws callout 2 from the motor and lift the motor out of the printer Figure 12 Remove the motor fuser removed for clarity Note When replacing the motor verify that the connector callout 1 is located toward the front of the printer Q1342 90910 External assemblies 23 Right side cover 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side and back covers See Left side cover on page 18 through Back cover on page 19 Open the toner cartridge door Remove one screw callout 1 on the back of the printer Figure 13 Remove the right side cover mounting screw 24 Chapter 2 Removal and replacement Q1342 90910 4 Lift the right side of the printer and release the tab callout 2 on the bottom of the cover
71. rical components 103 part numbers 103 PCB fuse removing 21 removing 56 troubleshooting 64 wiring diagrams 88 edges not printing 72 electrical components diagrams and part numbers 102 electrical specifications 4 electrophotographic processes testing 81 electrostatic discharge ESD precautions 13 engine control unit See ECU engine test button locating 7 performing 79 troubleshooting 64 environmental specifications 4 error messages 67 70 ESD electrostatic discharge precautions 13 extended warranty 9 F face down delivery assembly removing 46 face up roller removing 47 fasteners types of 94 fatal errors 69 features printer 2 feed assembly removing 60 feeding problems troubleshooting 77 field replaceable units FRUs 94 firmware initialization 67 flashing lights 67 flowchart troubleshooting 64 formatter bypassing 79 front cover part number 97 removing 32 front guide assembly part number 101 removing 36 FRUS field replaceable units 94 fuse ECU PCB 21 fuser assembly diagrams and part numbers 108 heating element check 83 removing 42 temperature adjusting 74 G general protection fault error message 70 gray background troubleshooting 74 green light 67 116 Chapter Index guide assembly part number 101 removing 36 H half self test functional check 81 hardware maintenance agreements 9 heating element check 83 high voltage power supply testing 84 HP Customer Care Online 92 HP Suppo
72. rtPack 9 HP Technical Training 92 humidity specifications 4 troubleshooting 74 76 illegal operation error message 70 image formation process testing 81 image quality repetitive image defect ruler 87 specifications 2 troubleshooting 72 input tray capacity 75 feeding problems 78 locating 6 part number 95 removing 16 installation software 66 internal components diagrams and part numbers 98 J jams release levers locating 7 troubleshooting 78 L languages printer 2 laser scanner assembly diagrams and part numbers 99 removing 40 LEDs error messages 67 removing 31 troubleshooting 65 left plate assembly part number 99 removing 55 left side cover part number 97 removing 18 lift plate diagrams and part numbers 107 removing 54 Q1342 90910 lights error messages 67 removing 31 troubleshooting 65 lines troubleshooting 73 lists part numbers alphabetical 110 numerical 112 loose toner 74 76 M machine screws 94 maintenance agreements 9 manuals ordering 92 margins minimum 72 media jams 7 78 storing 80 media tray capacity 75 feeding problems 78 locating 6 part number 95 removing 16 memory included 2 messages error 67 70 Microsoft Windows versions supported 2 misalignment specifications 5 troubleshooting 75 77 model number 3 motor part number 101 removing 23 troubleshooting 64 multifeeds troubleshooting 78 N noise specifications 5 not responding 70 numbers part alphabetical li
73. s and the Attention light blinks The printer is in a continuable error state A User Intervention message appears on the computer screen Follow the directions in this message to clear the error Out of memory is the continuable error 68 Chapter 3 Troubleshooting Q1342 90910 Table 9 Status lights messages continued Message Possible causes Solutions The Ready and Attention lights are A fatal error message appears on the illuminated The printer is in a fatal error computer screen Follow the directions in O state the message to clear the error Possible fatal errors are Q Fuser error Laser scanner error e ECU communication error e Formatter RAM or ROM error Scan buffer error Dynamic RAM controller error General fatal error e Miscellaneous hardware error Note Hint Q1342 90910 The cable pod downloads the firmware from the computer each time you turn on the printer If the cable pod does not receive the firmware download from the computer only the ready and fatal error light patterns can appear The status lights can only display information about one printer state at a time The status lights display printer status information in the following order fatal errors intervention required error continuable error and processing job Errors 69 Additional error messages Error conditions can exist that do not generate status light patterns Instead an error message appe
74. screws callout 1 on the back of the printer Remove the two screws callout 2 on the top of the printer Lift the cover off of the printer Remove the top cover External assemblies 29 Connector PCB Assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Open the toner cartridge door Disconnect the laser scanner ribbon cable at the laser scanner end laser scanner wire harness LED status panel wire harness and ECU ribbon cable Remove the three connector PCB assembly mounting screws callout 1 and remove the assembly Figure 19 Remove the connector assembly 30 Chapter 2 Removal and replacement Q1342 90910 LED status panel 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Open the toner cartridge door Disconnect the status panel cable callout 1 from the connector assembly Unlace the harness from the harness clip 4 Remove two screws callout 2 from the top of the control panel assembly 5 Lift and remove the panel assembly Figure 20 Remove the LED status panel
75. semblies 10 66 RA0 1023 000CN Connecting link 7 66 RA0 1035 000CN Torsion spring 11 68 RAO0 1072 000CN Grounding plate 10 68 RA0 1088 000CN Gear 29T 5 70 RA0 1089 000CN Gear 17T fuser assembly 6 70 RAO0 1104 000CN Bushing 18 70 RAO0 1127 000CN Engine controller case 1 67 RAO 1 128 000CN PCB spacer 2 67 RA0 1161 000CN Guide front 1 66 RA0 1169 000CN Compression spring 2 65 RA0 1172 000CN Gear 17T drive train left plate side 7 65 RA0 1173 000CN Lever holder 2 66 RA0 1176 000CN Gear 69T 6 66 RA0 1177 000CN Cover front 1 64 RA0 1182 000CN Shutter lever 1 65 RA0 1184 000CN Cover right support 67 65 RA0 1185 000CN Fuser plate left 3 66 RA0 1186 000CN Fuser plate right 4 66 RA0 1200 000CN Torsion spring 28 68 RA0 1403 000CN Cover left side 3 64 RA0 1405 000CN Paper pickup cover assembly 32 63 RA0 1197RA0 1197 Foot plate assemblies 10 67 RF0 1003 000CN Face up roller 2 70 RF0 1008 000CN Pickup roller 8 65 RF0 1014 000CN Separation pad 24 69 RF0 1073 000CN Cover right side 2 64 RF0 1074 000CN Top cover assembly 64 RG0 1003 000CN Paper pickup assembly 68 112 Chapter 4 Paris and diagrams Q1342 90901 Table 28 Numerical parts list continued Part Number Description Ref Figure RG0 1005 000CN Feed roller holder assembly 25 68 RG0 1006 000CN Paper lift plate assembly 22 69 RG0 1007 000CN Paper pickup shaft assembly 23 68 RG0 1008 000C
76. st 110 numerical list 112 numbers telephone 92 O online Customer Care HP 92 operating environment specifications 4 operating systems supported 2 ordering parts and supplies 92 output bin capacity 2 locating 6 troubleshooting 78 EN output quality repetitive image defect ruler 87 specifications 2 troubleshooting 72 output rollers removing 46 output sensor removing 22 P pages per minute 2 pan ECU 56 paper jams 7 78 storing 80 paper feed assembly removing 60 paper feed problems troubleshooting 77 paper input tray capacity 75 feeding problems 78 locating 6 part number 95 removing 16 paper jams 7 78 paper lift plate diagrams and part numbers 107 removing 54 paper output bin capacity 2 locating 6 troubleshooting 78 paper path test 86 paper pickup assembly diagrams and part numbers 95 104 removing 50 partial characters troubleshooting 73 75 parts alphabetical list 110 file replaceable units FRUs 94 numerical list 112 ordering 92 removing and replacing 13 PCL printer language 2 personalities supported 2 Phillips screwdrivers 13 phone numbers ordering supplies 92 photosensitive drum inspecting 71 testing 81 82 troubleshooting 73 physical specifications 4 pickup assembly diagrams and part numbers 95 104 removing 50 pickup roller part number 99 removing 53 Chapter Index 117 plate assemblies left removing 55 paper lift removing 54 part numbers 99 101 right removing 48 platf
77. stration refer to assembly components that are connected together Note Q1342 90901 106 Chapter 4 Parts and diagrams Part numbers Table 25 Paper pickup assembly 2 of 2 Ref Part number Description Qty 2 RA0 1003 000CN Foot rubber paper pickup 2 assembly 22 RG0 1006 000CN Paper lift plate assembly 1 24 RF0 1014 000CN Separation pad 1 Q1342 90901 Internal assemblies 107 Fuser assembly Figure 70 Fuser assembly Note A and B in the illustration refer to assembly components that are connected together 108 Chapter 4 Parts and diagrams Q1342 90901 Q1342 90901 Part numbers Table 26 Fuser assembly Ref Part number Description RG9 1493 000CN Fuser assembly 110 V RG9 1494 000CN Fuser assembly 220 V RF0 1003 000CN Face up roller RG0 1010 000CN Face down delivery assembly RA0 1088 000CN Gear 29T RA0 1089 000CN Gear 17T fuser assembly Oo BB ND RA0 1104 000CN Bushing RG0 1082 000CN Delivery sensor PCB assembly Internal assemblies 109 Alphabetical parts list Table 27 Alphabetical parts list Description Part number Ref Figure Back cover assembly RG0 1016 000CN 4 64 Bushing RA0 1104 000CN 18 70 Cable pod Q1342 60001 1 63 Cable laser scanner RG0 1097 000CN 4 65 Clamp cable WT
78. t 1000 ECU PCB 88 Figure 62 Printer connectors 89 Figure 63 Media tray and cable pod 95 Figure 64 HP LaserJet 1000 covers 96 Figure 65 Internal components 1 0f2 98 Figure 66 Internal componentsm 2 of 2 100 Figure 67 Electrical components 102 Figure 68 Paper pickup assembly 1 of 2 104 Figure 69 Paper pickup assembly 2 0f2 106 Figure 70 Fuser assembly 108 xii Chapter Figures Q1342 90910 Tables Table 1 HP LaserJet 1000 Series printer features 2 Table 2 Physical specifications 4 Table 3 Environmental specifications 4 Table 4 Power specifications 4 Table 5 Print operating acoustical emissions specifications 5 Table 6 Skew specifications 5 Table 7 Basic troubleshooting 64 Table 8 LED status lights legend 67 Table 9 Status lights messages 68 Table 10 Error messages no LED status panel pattern 70 Table 11 Solving print image quality problems 72 Table 12 Solving paper feed problems 77 Table 13 Engine test troubleshooting 80 Table 14 ECU connectors
79. the paper 1 Unplug the printer for at least ten minutes 2 Remove the heating element connector callout 1 from the ECU To measure the continuity of the heating element measure the resistance between the two pins at the end of the cable Note Normal resistance is 25 ohms 10 ohms for the 110 V printer and 80 ohms 20 ohms for the 220 V printer If no resistance is measured replace the fuser 3 Remove the thermistor connector callout 2 and measure the resistance between J206 pins one and two and between J206 pins three and four Note Normal resistance between both pairs of pins is 370 K ohms 50 K ohms at 20 C 68 F 4 fnoresistance is measured replace the fuser 5 Reconnect the heating element and thermistor Verify that the connectors are seated into both the printer chassis and the ECU Figure 54 Locate the connectors for the heating element check Q1342 90910 Functional checks 83 High voltage power supply check The high voltage power supply PCA provides the necessary voltages for the electrophotographic processes To check the toner cartridge connection points Turn the toner cartridge over and visually inspect the three connection points on the ends of the toner cartridge drum ground callout 1 charging callout 2 and developing roller callout 3 If any are dirty or corroded clean the connection If any are damaged replace the toner cartridge Note Use only isopropyl alcohol to clean
80. ting screws Q1342 90910 Internal assemblies 51 4 Lift the metal shield callout 3 straight up and remove it from the printer Figure 41 Remove the metal shield 52 Chapter 2 Removal and replacement Q1342 90910 Figure 42 Q1342 90910 Pickup roller assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on page 18 through Top cover on page 29 Front cover toner cartridge door and front guide See Front cover on page 32 through Front guide on page 36 Fuser assembly See Fuser assembly on page 42 Right plate assembly and pickup assembly See Right plate assembly on page 48 through Pickup assembly on page 50 Release the locking tab on the right side pickup roller cam callout 1 and slide the cam to the left about one inch Slide the roller shaft toward the right until the left end releases Carefully pull the left end of the shaft toward you until it clears the left side of the chassis Remove the pickup roller assembly Remove the pickup roller assembly Internal assemblies 53 Paper lift plate assembly 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side back right side and top covers See Left side cover on
81. ull the cover off of the printer Figure 9 Remove the back cover CAUTION When replacing the back cover verify that the bottom left retainer tab under the printer is inside the printer chassis This tab can be broken if not properly inserted into the printer chassis 20 Chapter 2 Removal and replacement Q1342 90910 Figure 10 WARNING Note Q1342 90910 ECU PCB fuse 1 Remove the following assemblies e Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 e Left side and back covers See Left side cover on page 18 through Back cover on page 19 2 Graspthe ECU PCB fuse callout 1 and pull it out of the mounting clips Remove the ECU PCB fuse To protect against the risk of fire always replace the ECU PCB fuse with the same type and rating fuse Fuse type and rating is printed on the ECU PCB next to the fuse Purchase this fuse at a local hardware store or from an electrical component supplier External assemblies 21 Output sensor 1 Remove the following assemblies Toner cartridge media tray and cable pod See Toner cartridge on page 15 through Cable pod on page 17 Left side and back covers See Left side cover on page 18 through Back cover on page 19 Disconnect the output sensor callout 1 wire harness at the ECU end Unlace the harness from the harness lance points Remove the single output sensor mounting sc
82. ver 32 front guide 36 fuser assembly 42 laser scanner assembly 40 LED status panel 31 left plate assembly 55 left side cover 18 motor 23 order for 14 output rollers 46 output sensor 22 paper feed assembly 60 paper lift plate assembly 54 pickup assembly 50 pickup roller 53 procedures for 13 right plate assembly 48 right side cover 24 solenoid 27 toner cartridge 15 toner cartridge door 34 top cover 29 transfer roller 39 resistance heating element 83 resolution specifications 2 troubleshooting 72 right plate assembly part number 101 removing 48 right side cover part number 97 removing 24 rollers face up removing 47 output removing 46 part numbers 99 pickup removing 53 repetitive defects troubleshooting 87 transfer removing 39 rotation test drum 82 ruler repetitive defect 87 S scatter toner 76 schedules HP Technical Training 92 screwdrivers required 13 EN Screws part numbers 97 self tapping installing 13 types of 94 self tapping screws 13 self test 81 sensor output 22 separation pad part number 107 replacing 78 serial number 3 side covers left removing 18 part numbers 97 right removing 24 size margins minimum 72 printer 4 skew specifications 5 troubleshooting 75 77 smears toner 74 software error messages 70 operating systems supported 2 ordering 92 troubleshooting installation 66 solenoid part number 101 removing 27 sound specifications 5 specifications 2 4 spec

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