Service Manual
Page 11
...figures ix High-voltage circuit block diagram 73 Figure 11. Paper pickup/feed and fuser/delivery block diagram 79 Figure 16. Stacker driver PCA block diagram 103 Figure 34. Staple mode feed and delivery diagram (1 of 3 115 Figure 49. Stapler unit 114 Figure ...diagram 74 Figure 12. Stapler unit I /O block diagram 95 Figure 28. Staple operation (3 of 6 109 Figure 38. Printer physical dimensions 6 Figure 2. Fuser components 71 Figure 9. Laser/scanner assembly 76 Figure 13. Multiple feed prevention 84 Figure 20. Envelope feeder I /O block diagram 113 Figure 45. Staple ...
...figures ix High-voltage circuit block diagram 73 Figure 11. Paper pickup/feed and fuser/delivery block diagram 79 Figure 16. Stacker driver PCA block diagram 103 Figure 34. Staple mode feed and delivery diagram (1 of 3 115 Figure 49. Stapler unit 114 Figure ...diagram 74 Figure 12. Stapler unit I /O block diagram 95 Figure 28. Staple operation (3 of 6 109 Figure 38. Printer physical dimensions 6 Figure 2. Fuser components 71 Figure 9. Laser/scanner assembly 76 Figure 13. Multiple feed prevention 84 Figure 20. Envelope feeder I /O block diagram 113 Figure 45. Staple ...
Service Manual
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... Q2431-90912 Contents Introduction 67 Basic operation of the printer 67 Printer operating sequence 67 Control system overview 68 Pickup and feed system overview 68 Laser/scanner system overview 68 Image formation system overview 68 General descriptions...Laser/scanner control 77 Paper pickup system 78 Paper pickup and feed block 79 Printing from tray 1 80 Printing from tray 2 82 Tray 2, 500-, 1,500-sheet feeder media size detection 83 Lifter-driver operation 84 Multiple feed prevention 84 Media skew prevention 85 Fixing/delivery block 86 Printer jam detection 87 Printer...
... Q2431-90912 Contents Introduction 67 Basic operation of the printer 67 Printer operating sequence 67 Control system overview 68 Pickup and feed system overview 68 Laser/scanner system overview 68 Image formation system overview 68 General descriptions...Laser/scanner control 77 Paper pickup system 78 Paper pickup and feed block 79 Printing from tray 1 80 Printing from tray 2 82 Tray 2, 500-, 1,500-sheet feeder media size detection 83 Lifter-driver operation 84 Multiple feed prevention 84 Media skew prevention 85 Fixing/delivery block 86 Printer jam detection 87 Printer...
Service Manual
Page 88
... other printer components needed to the laser beam come in the print cartridge) and a latent image of operation Q2431-90912 The DC controller PCA sends image data signals to the DC controller PCA by the laser neutralizing specific areas of media, transport the media into a laser beam of the laser/scanner assembly are the laser driver PCA, the scanner...
... other printer components needed to the laser beam come in the print cartridge) and a latent image of operation Q2431-90912 The DC controller PCA sends image data signals to the DC controller PCA by the laser neutralizing specific areas of media, transport the media into a laser beam of the laser/scanner assembly are the laser driver PCA, the scanner...
Service Manual
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... to scan two lines simultaneously producing high speed laser scanning. The two laser beams strike the six-sided scanning mirror and are the laser driver PCA, the scanner motor, various mirrors, and the focusing lenses. After receiving the print command from the DC controller PCA. Laser/scanner assembly The laser/scanner produces the latent electrostatic image on the photosensitive...
... to scan two lines simultaneously producing high speed laser scanning. The two laser beams strike the six-sided scanning mirror and are the laser driver PCA, the scanner motor, various mirrors, and the focusing lenses. After receiving the print command from the DC controller PCA. Laser/scanner assembly The laser/scanner produces the latent electrostatic image on the photosensitive...
Service Manual
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... turning the laser diodes on an off . Laser/scanner control The laser/scanner control circuit on the laser driver PCA turns the laser diodes on and off according to image data signals received from the laser diodes. Automatic power control is used to avoid laser beam emission on the laser driver PCA. Image... mask control is used to limit the amount of operation 77 Figure 13. The DC controller PCA sends image data signals VD01/VD01,VD02, and /VD02 and the laser control signals CNT0, CNT1...
... turning the laser diodes on an off . Laser/scanner control The laser/scanner control circuit on the laser driver PCA turns the laser diodes on and off according to image data signals received from the laser diodes. Automatic power control is used to avoid laser beam emission on the laser driver PCA. Image... mask control is used to limit the amount of operation 77 Figure 13. The DC controller PCA sends image data signals VD01/VD01,VD02, and /VD02 and the laser control signals CNT0, CNT1...
Service Manual
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... returns the status of the printer drives the paper feeder. When the scanner motor reaches its prescribed speed, the paper-feeder driver receives the pickup command from the 500-sheet feeder The HP LaserJet 4200/4300 series printers support up to the pickup command. An 8-bit microprocessor in response to two optional 500-sheet feeders. The paper...
... returns the status of the printer drives the paper feeder. When the scanner motor reaches its prescribed speed, the paper-feeder driver receives the pickup command from the 500-sheet feeder The HP LaserJet 4200/4300 series printers support up to the pickup command. An 8-bit microprocessor in response to two optional 500-sheet feeders. The paper...
Service Manual
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...pickup command. The separation roller removes any unnecessary sheets and the media travels to the output bin. The paperfeeder driver also returns the status of the printer begins to the DC controller PCA. The relationship between the switch combinations and the paper sizes is corrected. ... feeder. An 8-bit microprocessor in the same way as for the integrated circuits. Figure 24. When the scanner motor reaches its skew is the same as the printer. The paper-feeder driver drives the solenoid in response to the 1,500-sheet feeder, which then generates +3.3 v for the...
...pickup command. The separation roller removes any unnecessary sheets and the media travels to the output bin. The paperfeeder driver also returns the status of the printer begins to the DC controller PCA. The relationship between the switch combinations and the paper sizes is corrected. ... feeder. An 8-bit microprocessor in the same way as for the integrated circuits. Figure 24. When the scanner motor reaches its skew is the same as the printer. The paper-feeder driver drives the solenoid in response to the 1,500-sheet feeder, which then generates +3.3 v for the...
Service Manual
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During image formation, an image of the paper reject toner. q The driver/printer is excessively rough. q The transparencies you are using is too heavy for proper toner adhesion or high fusing temperatures. q...components: q laser/scanner q print cartridge q fuser q transfer roller q Supporting circuitry (power supply and DC controller PCA) Before beginning image formation troubleshooting, check that the media meets the specifications listed in chapter 1 and/or the HP LaserJet Printer Family Print Media Guide. See the specifications listed in the HP LaserJet Printer Family Print Media...
During image formation, an image of the paper reject toner. q The driver/printer is excessively rough. q The transparencies you are using is too heavy for proper toner adhesion or high fusing temperatures. q...components: q laser/scanner q print cartridge q fuser q transfer roller q Supporting circuitry (power supply and DC controller PCA) Before beginning image formation troubleshooting, check that the media meets the specifications listed in chapter 1 and/or the HP LaserJet Printer Family Print Media Guide. See the specifications listed in the HP LaserJet Printer Family Print Media...
Service Manual
Page 427
...pickup sensor cable assembly (PS101 & PS107) 1; figure 242 Q2431-69003 (exchange) Power supply, 220-V (LJ 4300) RM1-0108-000CN (new) 2; figure 239 Q2431-690001 (exchange) Laser/scanner assembly (LJ 4300) RM1-0183-000CN (new) 1; figure 248 RM1-0034-000CN Paper-pickup assembly figure 244 RM1-0056-000CN ...-drive assembly, 1,500-sheet feeder figure 263 RM1-0033-000CN Lifter-drive assembly, tray 2 figure 246 RM1-0208-000CN Lifter-driver assembly; 500-sheet feeder figure 258 Q2425-67901 LJ4200 name plate kit Not shown Q2431-67908 LJ4300 name plate kit Not shown ...
...pickup sensor cable assembly (PS101 & PS107) 1; figure 242 Q2431-69003 (exchange) Power supply, 220-V (LJ 4300) RM1-0108-000CN (new) 2; figure 239 Q2431-690001 (exchange) Laser/scanner assembly (LJ 4300) RM1-0183-000CN (new) 1; figure 248 RM1-0034-000CN Paper-pickup assembly figure 244 RM1-0056-000CN ...-drive assembly, 1,500-sheet feeder figure 263 RM1-0033-000CN Lifter-drive assembly, tray 2 figure 246 RM1-0208-000CN Lifter-driver assembly; 500-sheet feeder figure 258 Q2425-67901 LJ4200 name plate kit Not shown Q2431-67908 LJ4300 name plate kit Not shown ...
Service Manual
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... plate kit Q2431-690001 (exchange) Laser/scanner assembly (LJ 4300) RM1-0183-000CN (new) Q2431-69002 (exchange) Power supply, 110-V (LJ 4300) RM1-0107-000CN (new) Q2431-69003 (exchange) Power supply, 220-V (LJ 4300) RM1-0108-000CN (new) Q2431-69005 (exchange) Fuser, 110-V (LJ 4300) RM1-0101-000CN (new) Q2431...pressure RC1-0153-000CN Guide, cassette RC1-0161-000CN Flag, paper size sensor; 500-sheet feeder RC1-0198-000CN Spring, tension (lifter driver assembly) RC1-0206-000CN Bushing, 500-sheet feeder RC1-0208-000CN Holder, paper sensor RC1-0209-000CN Flag, paper sensing RC1-0209...
... plate kit Q2431-690001 (exchange) Laser/scanner assembly (LJ 4300) RM1-0183-000CN (new) Q2431-69002 (exchange) Power supply, 110-V (LJ 4300) RM1-0107-000CN (new) Q2431-69003 (exchange) Power supply, 220-V (LJ 4300) RM1-0108-000CN (new) Q2431-69005 (exchange) Fuser, 110-V (LJ 4300) RM1-0101-000CN (new) Q2431...pressure RC1-0153-000CN Guide, cassette RC1-0161-000CN Flag, paper size sensor; 500-sheet feeder RC1-0198-000CN Spring, tension (lifter driver assembly) RC1-0206-000CN Bushing, 500-sheet feeder RC1-0208-000CN Holder, paper sensor RC1-0209-000CN Flag, paper sensing RC1-0209...
Service Manual
Page 440
... 107, 110, 346 K kits for printer maintenance 366 Korean EMI statement 21 L ...printer personality 49 slow switching 52 laser beam operation 76, 120, 121 laser cable 373 laser control circuit 77 laser driver PCA 76, 77 laser safety statements Finland 22 U.S. 20 laser/scanner assembly illustration and part number 373 location 332 operation 76 order in laser/scanner... locked menus 258 locking printer cabinet, printer, and trays 136 logs... safety precautions 133 laser/scanner control circuit 77 laser/scanner PCA 356 420...295 paper path 303 persistent 298 printer detection 87 recovery setting 50 recovery ...
... 107, 110, 346 K kits for printer maintenance 366 Korean EMI statement 21 L ...printer personality 49 slow switching 52 laser beam operation 76, 120, 121 laser cable 373 laser control circuit 77 laser driver PCA 76, 77 laser safety statements Finland 22 U.S. 20 laser/scanner assembly illustration and part number 373 location 332 operation 76 order in laser/scanner... locked menus 258 locking printer cabinet, printer, and trays 136 logs... safety precautions 133 laser/scanner control circuit 77 laser/scanner PCA 356 420...295 paper path 303 persistent 298 printer detection 87 recovery setting 50 recovery ...
Service Manual
Page 443
... assemblies 371 memory, fonts, and mass storage 365 printer maintenance kits 366 PartnerCare 29, 363 partners HP Connect Online support website 362 HP Partner Care support 29 HP PartnerCare support 363 parts diagrams and lists 368 location of printer 6 pickup-drive assembly, 1,500-sheet feeder 341 ...feeder control, 1,500-sheet feeder 343, 399 laser driver 76, 77 LED, stacker and stapler/stacker 347 paper-deck driver 94 printer 338 scanner motor 76 stacker 103, 347 stacker driver 103, 104 stapler/stacker 347 stapler/stacker driver 106, 109 PCL (printer command language) 130 font list 41 setting ...
... assemblies 371 memory, fonts, and mass storage 365 printer maintenance kits 366 PartnerCare 29, 363 partners HP Connect Online support website 362 HP Partner Care support 29 HP PartnerCare support 363 parts diagrams and lists 368 location of printer 6 pickup-drive assembly, 1,500-sheet feeder 341 ...feeder control, 1,500-sheet feeder 343, 399 laser driver 76, 77 LED, stacker and stapler/stacker 347 paper-deck driver 94 printer 338 scanner motor 76 stacker 103, 347 stacker driver 103, 104 stapler/stacker 347 stapler/stacker driver 106, 109 PCL (printer command language) 130 font list 41 setting ...
Service Manual
Page 447
.../LLC 52 main motor 121 motors 70 pages per minute 8 scanner motor 121 spilled toner, cleaning 57 SPL (sound power level) ratings 8 stabilizing toner 124 stacker capacity 13 cover 403 deflector solenoid 346 door open switch 345 driver PCA 347 feed mechanism and motor 346 jam detection 105 jam... testing paper path 300 troubleshooting 291, 326 wiring diagram 355 stapler/stacker driver PCA 106, 109 Stapler/stacker menu on control panel 51 star washers 134 static eliminator teeth 123 status from EWS 244 from Printer Status and Alerts 245 status and alerts software 243 status messages configuring with...
.../LLC 52 main motor 121 motors 70 pages per minute 8 scanner motor 121 spilled toner, cleaning 57 SPL (sound power level) ratings 8 stabilizing toner 124 stacker capacity 13 cover 403 deflector solenoid 346 door open switch 345 driver PCA 347 feed mechanism and motor 346 jam detection 105 jam... testing paper path 300 troubleshooting 291, 326 wiring diagram 355 stapler/stacker driver PCA 106, 109 Stapler/stacker menu on control panel 51 star washers 134 static eliminator teeth 123 status from EWS 244 from Printer Status and Alerts 245 status and alerts software 243 status messages configuring with...