Service Manual
Page 11
...Laser/scanner assembly 76 Figure 13. Paper pickup/feed and fuser/delivery block diagram 79 Figure 16. Tray 2 timing diagrams 82 Figure 19. Envelope feeder I /O block diagram 92 Figure 25. 1,500-sheet feeder pickup and feed diagram 93 Figure 26. 1,500-sheet feeder lifting mechanism 94 Figure 27. Stacker driver...72 Figure 10. Multiple feed prevention 84 Figure 20. Power-on sequence for the stacker and stapler/stacker 102 Figure 33. Printer paper pickup and feed block diagram 78 Figure 15. Correcting skewed media pages 85 Figure 21. Stapler/stacker motors, solenoids,...
...Laser/scanner assembly 76 Figure 13. Paper pickup/feed and fuser/delivery block diagram 79 Figure 16. Tray 2 timing diagrams 82 Figure 19. Envelope feeder I /O block diagram 92 Figure 25. 1,500-sheet feeder pickup and feed diagram 93 Figure 26. 1,500-sheet feeder lifting mechanism 94 Figure 27. Stacker driver...72 Figure 10. Multiple feed prevention 84 Figure 20. Power-on sequence for the stacker and stapler/stacker 102 Figure 33. Printer paper pickup and feed block diagram 78 Figure 15. Correcting skewed media pages 85 Figure 21. Stapler/stacker motors, solenoids,...
Service Manual
Page 15
Tray 2 lifter driver assembly 381 Figure 247. Paper pickup assembly 382 Figure 248. Stacker and stapler/stacker 403 Figure 266. Registration assembly 384 Figure 250. Paper-feed assembly ... and stapler/stacker 404 Q2431-90912 List of 2 392 Figure 257. 500-sheet feeder paper-pickup drive assembly 394 Figure 258. 500-sheet feeder lifter driver assembly 395 Figure 259. 500-sheet tray 396 Figure 260. 1500-sheet feeder external covers and panels 397 Figure 261. 1,500-sheet feeder main assemblies...
Tray 2 lifter driver assembly 381 Figure 247. Paper pickup assembly 382 Figure 248. Stacker and stapler/stacker 403 Figure 266. Registration assembly 384 Figure 250. Paper-feed assembly ... and stapler/stacker 404 Q2431-90912 List of 2 392 Figure 257. 500-sheet feeder paper-pickup drive assembly 394 Figure 258. 500-sheet feeder lifter driver assembly 395 Figure 259. 500-sheet tray 396 Figure 260. 1500-sheet feeder external covers and panels 397 Figure 261. 1,500-sheet feeder main assemblies...
Service Manual
Page 18
...Table 100. Specks or dots 314 Table 58. Repeating defects and repeating images 318 Table 63. Smudged lines (either direction 320 Table 69. Printer connection area jam troubleshooting 328 Table 77. Memory, fonts, and mass storage 365 Table 84. Main assemblies (2 of tables Q2431-90912 Transfer ...-sheet feeder main assemblies (2 of 2 393 Table 107. 500-sheet feeder paper-pickup drive assembly 394 Table 108. 500-sheet feeder lifter driver assembly 395 Table 109. 500-sheet tray 396 Table 110. 1500-sheet feeder external covers and panels 397 Table 111. 1,500-sheet feeder ...
...Table 100. Specks or dots 314 Table 58. Repeating defects and repeating images 318 Table 63. Smudged lines (either direction 320 Table 69. Printer connection area jam troubleshooting 328 Table 77. Memory, fonts, and mass storage 365 Table 84. Main assemblies (2 of tables Q2431-90912 Transfer ...-sheet feeder main assemblies (2 of 2 393 Table 107. 500-sheet feeder paper-pickup drive assembly 394 Table 108. 500-sheet feeder lifter driver assembly 395 Table 109. 500-sheet tray 396 Table 110. 1500-sheet feeder external covers and panels 397 Table 111. 1,500-sheet feeder ...
Service Manual
Page 48
.... Related documentation and software Order documentation and software from the HP Services. Software drivers, support documentation, and answers to http://www.hp.com/go /partsinfo 28 Service approach Q2431-90912 Parts information. Service approach Repair of the printer normally begins with the use of the printer's internal diagnostics in conjunction with the troubleshooting procedures that...
.... Related documentation and software Order documentation and software from the HP Services. Software drivers, support documentation, and answers to http://www.hp.com/go /partsinfo 28 Service approach Q2431-90912 Parts information. Service approach Repair of the printer normally begins with the use of the printer's internal diagnostics in conjunction with the troubleshooting procedures that...
Service Manual
Page 59
... performed by using an application program or a printer driver. Use the control panel to gain access to store the menu map near the printer for more information. You might want to printer features that are not supported by the software program or the printer driver. Use the UP ARROW ( ) button or... the DOWN ARROW ( ) button to scroll to PRINT MENU MAP, and then press the SELECT ( ) button. Q2431-90912 Chapter 3 Printer operation 39 See the Help file for your program for reference....
... performed by using an application program or a printer driver. Use the control panel to gain access to store the menu map near the printer for more information. You might want to printer features that are not supported by the software program or the printer driver. Use the UP ARROW ( ) button or... the DOWN ARROW ( ) button to scroll to PRINT MENU MAP, and then press the SELECT ( ) button. Q2431-90912 Chapter 3 Printer operation 39 See the Help file for your program for reference....
Service Manual
Page 60
... to the submenu item that you want , and then press the SELECT ( ) button. 4. Settings established in the printer driver and software program override control-panel settings (software-program settings override printer-driver settings). Press the SELECT ( ) button to the setting, and then press the SELECT ( ) button. Press the ...UP ARROW ( ) button or the DOWN ARROW ( ) button to scroll to the menu that it is either not an option for the printer, or you cannot gain access to close the menu. If you have several submenus. See the network administrator if a function has been locked....
... to the submenu item that you want , and then press the SELECT ( ) button. 4. Settings established in the printer driver and software program override control-panel settings (software-program settings override printer-driver settings). Press the SELECT ( ) button to the setting, and then press the SELECT ( ) button. Press the ...UP ARROW ( ) button or the DOWN ARROW ( ) button to scroll to the menu that it is either not an option for the printer, or you cannot gain access to close the menu. If you have several submenus. See the network administrator if a function has been locked....
Service Manual
Page 62
...the type or size loaded in this tray. Program and printer-driver settings override control panel settings. The default value for paper types and sizes, and information about supported paper types and sizes, see the HP LaserJet 4200/4300 Use Guide. For more information about configuring for each ... in tray 1. For more information, see the HP LaserJet 4200/4300 Use Guide. *ANY The value corresponds to ANY, LETTERHEAD the printer will pull media from tray 1 unless the type or size of paper in the software program or the printer driver. ANY: If both the type and size for...
...the type or size loaded in this tray. Program and printer-driver settings override control panel settings. The default value for paper types and sizes, and information about supported paper types and sizes, see the HP LaserJet 4200/4300 Use Guide. For more information about configuring for each ... in tray 1. For more information, see the HP LaserJet 4200/4300 Use Guide. *ANY The value corresponds to ANY, LETTERHEAD the printer will pull media from tray 1 unless the type or size of paper in the software program or the printer driver. ANY: If both the type and size for...
Service Manual
Page 64
... of copies. This menu appears only if the Custom-Standard switch in the selected tray is not specified in the program or printer driver. (Program and printer-driver settings override control-panel settings.) DEFAULT PAPER SIZE ANY *LETTER LEGAL EXECUTIVE A4 A5 B5 (ISO) B5 (JIS) EXECUTIVE (... 32000 The default number of copies is installed). Note It is best to set the number of copies in the program or printer driver. (Program and printer-driver settings override control-panel settings.) DEFAULT CUSTOM PAPER SIZE UNIT OF MEASURE X DIMENSION Y DIMENSION The default custom paper size for...
... of copies. This menu appears only if the Custom-Standard switch in the selected tray is not specified in the program or printer driver. (Program and printer-driver settings override control-panel settings.) DEFAULT PAPER SIZE ANY *LETTER LEGAL EXECUTIVE A4 A5 B5 (ISO) B5 (JIS) EXECUTIVE (... 32000 The default number of copies is installed). Note It is best to set the number of copies in the program or printer driver. (Program and printer-driver settings override control-panel settings.) DEFAULT CUSTOM PAPER SIZE UNIT OF MEASURE X DIMENSION Y DIMENSION The default custom paper size for...
Service Manual
Page 65
...to set vertical spacing from a tray. FONT NUMBER *0 to 999 The printer assigns a number to it receives a print job. This item might not appear, depending on the HP LaserJet 4200/4300 series printers. PRINT PS ERRORS *OFF ON Use this item to print an A4-size...line of characters that has an asterisk (*) next to each setting is not loaded in the printer (or vice versa). SLOT 1, 2, or 3: Fonts stored in the software program or printer driver. (Program and printer-driver settings override control-panel settings.) FONT SOURCE *INTERNAL SOFT SLOT 1, 2, or 3 INTERNAL: ...
...to set vertical spacing from a tray. FONT NUMBER *0 to 999 The printer assigns a number to it receives a print job. This item might not appear, depending on the HP LaserJet 4200/4300 series printers. PRINT PS ERRORS *OFF ON Use this item to print an A4-size...line of characters that has an asterisk (*) next to each setting is not loaded in the printer (or vice versa). SLOT 1, 2, or 3: Fonts stored in the software program or printer driver. (Program and printer-driver settings override control-panel settings.) FONT SOURCE *INTERNAL SOFT SLOT 1, 2, or 3 INTERNAL: ...
Service Manual
Page 66
...No value available. A selection appears for each tray that is installed, and registration must be set for each line feed that is encountered in the printer driver, if applicable. For duplexing, this item to select the tray from side to right. Table 23. PRINT TEST PAGE q SOURCE q ADJUST TRAY [N]... an asterisk (*) next to it is best to select any one that is the number of the tray. For more information, see the HP LaserJet 4200/4300 Use Guide. Table 22. Some environments, such as selections, where [N] is printed on the page from which you want to each setting ...
...No value available. A selection appears for each tray that is installed, and registration must be set for each line feed that is encountered in the printer driver, if applicable. For duplexing, this item to select the tray from side to right. Table 23. PRINT TEST PAGE q SOURCE q ADJUST TRAY [N]... an asterisk (*) next to it is best to select any one that is the number of the tray. For more information, see the HP LaserJet 4200/4300 Use Guide. Table 22. Some environments, such as selections, where [N] is printed on the page from which you want to each setting ...
Service Manual
Page 67
... transparencies can select a fuser mode that is available for all of printers. 600: Produces high-quality text print and can be used for compatibility with the HP LaserJet III family of the following modes: NORMAL: Used for the best quality in the printer driver and set the tray type at the same speed. 300: Produces...
... transparencies can select a fuser mode that is available for all of printers. 600: Produces high-quality text print and can be used for compatibility with the HP LaserJet III family of the following modes: NORMAL: Used for the best quality in the printer driver and set the tray type at the same speed. 300: Produces...
Service Manual
Page 68
...and edges. Note It is best to change the REt setting in the software program or the printer driver. (Program and printer driver-settings override control-panel settings.) CAUTION HP does not recommend full-time use of EconoMode. EconoMode creates draft-quality printing by setting the .... Note It is possible that the toner supply will outlast the mechanical parts in the software program or the printer driver. (Program and printer-driver settings override control-panel settings.) CREATE CLEANING PAGE No value available. All other print resolutions benefit from the fuser...
...and edges. Note It is best to change the REt setting in the software program or the printer driver. (Program and printer driver-settings override control-panel settings.) CAUTION HP does not recommend full-time use of EconoMode. EconoMode creates draft-quality printing by setting the .... Note It is possible that the toner supply will outlast the mechanical parts in the software program or the printer driver. (Program and printer-driver settings override control-panel settings.) CREATE CLEANING PAGE No value available. All other print resolutions benefit from the fuser...
Service Manual
Page 69
... depend on electronic components in the printer (turns off the display backlight, but then to a specific printer language, the printer will not switch automatically from tray 1 if the print job does not match the type or size loaded in the printer driver. UNLESS LOADED: Prompts you selected ...is idle q reduces wear on which valid printer languages are retained before the printer pulls from the queue. PowerSave mode does the following section lists the settings...
... depend on electronic components in the printer (turns off the display backlight, but then to a specific printer language, the printer will not switch automatically from tray 1 if the print job does not match the type or size loaded in the printer driver. UNLESS LOADED: Prompts you selected ...is idle q reduces wear on which valid printer languages are retained before the printer pulls from the queue. PowerSave mode does the following section lists the settings...
Service Manual
Page 71
...OFF: The RAM disk is the one is possible that appear on the printer control-panel display. The following section lists the settings and their possible values in the software program or the printer driver (if the appropriate driver is out of staples, but the pages will be stapled. Table 25.... Note Selecting the stapler at the printer control panel changes the default setting to select settings for the optional ...
...OFF: The RAM disk is the one is possible that appear on the printer control-panel display. The following section lists the settings and their possible values in the software program or the printer driver (if the appropriate driver is out of staples, but the pages will be stapled. Table 25.... Note Selecting the stapler at the printer control panel changes the default setting to select settings for the optional ...
Service Manual
Page 83
... by e-mail when a new RFU version is similar to downloading printing-system software and printer drivers. A remote firmware update (RFU) can be downloaded from http://www.hp.com/go/lj4200_firmware or http://www.hp.com/go /lj4300_firmware and download the update. 3. Install the update. The RFU process consists of the configuration page. 2. ...link. Downloading a RFU is available for the version information in the device information section of three steps: 1. Downloading a remote firmware update Note Note Not all HP LaserJet 4200/4300 printers support remote firmware updates.
... by e-mail when a new RFU version is similar to downloading printing-system software and printer drivers. A remote firmware update (RFU) can be downloaded from http://www.hp.com/go/lj4200_firmware or http://www.hp.com/go /lj4300_firmware and download the update. 3. Install the update. The RFU process consists of the configuration page. 2. ...link. Downloading a RFU is available for the version information in the device information section of three steps: 1. Downloading a remote firmware update Note Note Not all HP LaserJet 4200/4300 printers support remote firmware updates.
Service Manual
Page 85
...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... pickup delay jam from tray 1 87 Printer pickup delay jam from tray 2 87 Printer pickup stationary jam 87 Printer delivery...
...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... pickup delay jam from tray 1 87 Printer pickup delay jam from tray 2 87 Printer pickup stationary jam 87 Printer delivery...
Service Manual
Page 88
...to turn on the drum (this image is supplied to process and print the image data input by the laser neutralizing specific areas of the printer. Laser/scanner system overview The laser/scanner system forms a latent (or potential) image on a photosensitive drum according to signals sent from the microprocessor...in the standby sequence (see table 30 on the DC controller PCA. Control system overview The control system consists of the laser/scanner assembly are the laser driver PCA, the scanner motor and a six-sided mirror. If during the transport process, the media does not reach specific ...
...to turn on the drum (this image is supplied to process and print the image data input by the laser neutralizing specific areas of the printer. Laser/scanner system overview The laser/scanner system forms a latent (or potential) image on a photosensitive drum according to signals sent from the microprocessor...in the standby sequence (see table 30 on the DC controller PCA. Control system overview The control system consists of the laser/scanner assembly are the laser driver PCA, the scanner motor and a six-sided mirror. If during the transport process, the media does not reach specific ...
Service Manual
Page 90
...driver assembly), and a fan motor. The fan motor rotates the fan blades. Table 31. transfer roller, pressure roller, and output delivery roller. The main motor is used in the print cartridge) and paper pickup and feed. Motor and fan control The HP LaserJet 4200 printer has three dc brushless motors. The HP LaserJet 4300 printer... cartridge motor (M102) HP LaserJet 4300 Drives the transfer charging roller, photosensitive drum, and developing cylinder. Left-side cooling fan (FN101) HP LaserJet 4200 HP LaserJet 4300 Cools the inside of the printer dc NA motor 2-speed...
...driver assembly), and a fan motor. The fan motor rotates the fan blades. Table 31. transfer roller, pressure roller, and output delivery roller. The main motor is used in the print cartridge) and paper pickup and feed. Motor and fan control The HP LaserJet 4200 printer has three dc brushless motors. The HP LaserJet 4300 printer... cartridge motor (M102) HP LaserJet 4300 Drives the transfer charging roller, photosensitive drum, and developing cylinder. Left-side cooling fan (FN101) HP LaserJet 4200 HP LaserJet 4300 Cools the inside of the printer dc NA motor 2-speed...
Service Manual
Page 96
... image on the photosensitive drum in the print cartridge.The main components of operation Q2431-90912 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. Scanner motor PCA Scanner motor Scanner ...mirror Focusing lens BD mirror Mirror BD PCA Laser beams Photosensitive drum (inside the print cartridge) Figure 12. The laser driver PCA emits light from the two laser diodes according to signals from the host computer, the DC controller PCA activates the ...
... image on the photosensitive drum in the print cartridge.The main components of operation Q2431-90912 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. Scanner motor PCA Scanner motor Scanner ...mirror Focusing lens BD mirror Mirror BD PCA Laser beams Photosensitive drum (inside the print cartridge) Figure 12. The laser driver PCA emits light from the two laser diodes according to signals from the host computer, the DC controller PCA activates the ...
Service Manual
Page 97
...control, and image mask control. Automatic power control is simply turning the laser diodes on and off according to avoid laser beam emission on the laser driver PCA. Figure 13. Laser control circuit block diagram Laser emission control is used to limit the amount of operation 77 Horizontal ...Q2431-90912 Chapter 5 Theory of light that is used to image data signals received from the laser diodes. Laser/scanner control The laser/scanner control circuit on the laser driver PCA turns the laser diodes on an off . The DC controller PCA sends image data signals VD01/VD01,VD02,...
...control, and image mask control. Automatic power control is simply turning the laser diodes on and off according to avoid laser beam emission on the laser driver PCA. Figure 13. Laser control circuit block diagram Laser emission control is used to limit the amount of operation 77 Horizontal ...Q2431-90912 Chapter 5 Theory of light that is used to image data signals received from the laser diodes. Laser/scanner control The laser/scanner control circuit on the laser driver PCA turns the laser diodes on an off . The DC controller PCA sends image data signals VD01/VD01,VD02,...