Service Manual
Page 51
... new print cartridges. q The print quality of HP LaserJet print cartridges influences the customer's perception of toner. Recycling print cartridges In many countries/regions this ... and a supply of the printer. At five-percent page coverage, a print cartridge prints approximately 12,000 pages (for the HP LaserJet 4200) or 18,000 pages (...for example, the print cartridge, the drum, and the fuser) can be returned to print pages with less ink coverage (such as a new HP LaserJet print cartridge. this product's printing supplies (for the HP LaserJet 4300...
... new print cartridges. q The print quality of HP LaserJet print cartridges influences the customer's perception of toner. Recycling print cartridges In many countries/regions this ... and a supply of the printer. At five-percent page coverage, a print cartridge prints approximately 12,000 pages (for the HP LaserJet 4200) or 18,000 pages (...for example, the print cartridge, the drum, and the fuser) can be returned to print pages with less ink coverage (such as a new HP LaserJet print cartridge. this product's printing supplies (for the HP LaserJet 4300...
Service Manual
Page 61
... information, see "Supplies status page" on page 240. If an HP Jetdirect print server is installed in the printer and provides access to the printer. To print a supplies status page, see the HP LaserJet 4200/4300 Use Guide. The file directory shows information for example, the toner-supply gauge). Table 19. Information menu Item Explanation PRINT MENU MAP...
... information, see "Supplies status page" on page 240. If an HP Jetdirect print server is installed in the printer and provides access to the printer. To print a supplies status page, see the HP LaserJet 4200/4300 Use Guide. The file directory shows information for example, the toner-supply gauge). Table 19. Information menu Item Explanation PRINT MENU MAP...
Service Manual
Page 70
... appears when about 15 percent of the toner remains in the print cartridge when printing at 5 percent coverage. (For the 12,000-page cartridge in the LaserJet 4300 series, 15 percent means that generated the message. CONTINUE: The printer continues to print, and the REPLACE CARTRIDGE...cartridge in the LaserJet 4200 series, 15 percent means that a clearable warning is cleared. HP does not guarantee good print quality if you print after a jam is shown on the printer control-panel display, and the printer goes offline for printer jam recovery (usually ON). 50 Printer operation Q2431-...
... appears when about 15 percent of the toner remains in the print cartridge when printing at 5 percent coverage. (For the 12,000-page cartridge in the LaserJet 4300 series, 15 percent means that generated the message. CONTINUE: The printer continues to print, and the REPLACE CARTRIDGE...cartridge in the LaserJet 4200 series, 15 percent means that a clearable warning is cleared. HP does not guarantee good print quality if you print after a jam is shown on the printer control-panel display, and the printer goes offline for printer jam recovery (usually ON). 50 Printer operation Q2431-...
Service Manual
Page 87
... the last rotation is immediately detected (sent by the top of various rollers and transports the media through the printer, the laser/scanner system (which forms the latent image on the controlpanel display. If no print jobs are waiting, then the...or drum motor (HP LaserJet 4300 only) stops. Last rotation This is the period of the basic operating sequence, see "HP LaserJet 4200 general timing diagram" on page 357 and "HP LaserJet 4300 general timing diagram" on the DC controller PCA. Chapter 5 Theory of the relationships between major components in the printer. Introduction Q2431-...
... the last rotation is immediately detected (sent by the top of various rollers and transports the media through the printer, the laser/scanner system (which forms the latent image on the controlpanel display. If no print jobs are waiting, then the...or drum motor (HP LaserJet 4300 only) stops. Last rotation This is the period of the basic operating sequence, see "HP LaserJet 4200 general timing diagram" on page 357 and "HP LaserJet 4300 general timing diagram" on the DC controller PCA. Chapter 5 Theory of the relationships between major components in the printer. Introduction Q2431-...
Service Manual
Page 94
...bias. Transfer dc positive bias is applied to the transfer roller during the toner transfer process. The dc positive bias is supplied to the pressure roller in the fuser. The... to the media). For the HP LaserJet 4200 there is now visible on the photosensitive drum. The ac voltage is applied to the electrostatic image that the laser/scanner assembly created on the drum...bias is converted into the direct current voltage (vdc) used to printer components like the motors and fans). For the HP LaserJet 4300 there are generated by the sub high-voltage circuit on the power...
...bias. Transfer dc positive bias is applied to the transfer roller during the toner transfer process. The dc positive bias is supplied to the pressure roller in the fuser. The... to the media). For the HP LaserJet 4200 there is now visible on the photosensitive drum. The ac voltage is applied to the electrostatic image that the laser/scanner assembly created on the drum...bias is converted into the direct current voltage (vdc) used to printer components like the motors and fans). For the HP LaserJet 4300 there are generated by the sub high-voltage circuit on the power...
Service Manual
Page 144
... the media. Figure 55. This printer utilizes an on-demand fusing method. This method has fast temperature-rising time, which conserves energy. This melts the toner and presses it does not scatter the toner over the media and produce a blurred image. For the HP LaserJet 4300, a dc negative bias (charge)... stabilizes the toner so that it takes to heat the fuser to the fixing film. During the fusing process, heat and pressure fuse the image to the media to the media. For the HP LaserJet 4200, a dc negative bias (charge) is coated with fluorine for both printer models. Fusing...
... the media. Figure 55. This printer utilizes an on-demand fusing method. This method has fast temperature-rising time, which conserves energy. This melts the toner and presses it does not scatter the toner over the media and produce a blurred image. For the HP LaserJet 4300, a dc negative bias (charge)... stabilizes the toner so that it takes to heat the fuser to the fixing film. During the fusing process, heat and pressure fuse the image to the media to the media. For the HP LaserJet 4200, a dc negative bias (charge) is coated with fluorine for both printer models. Fusing...
Service Manual
Page 148
...HP LaserJet 4200 series printer formatter incorporates a 300 MHz RISC processor. EconoMode, which can be thought of operation Q2431-90912 If EconoMode is used for creating multiple original prints (mopies) and storing forms, fonts, and signatures. The default setting, YES, makes it is available in the slots provided on the rear of toner...provides automatic I /O to 50 percent less toner than standard mode printing by most newer computers. Flash Optional flash is possible that is OFF. The HP LaserJet 4300 series printer formatter incorporates a 350 MHz RISC processor. 128...
...HP LaserJet 4200 series printer formatter incorporates a 300 MHz RISC processor. EconoMode, which can be thought of operation Q2431-90912 If EconoMode is used for creating multiple original prints (mopies) and storing forms, fonts, and signatures. The default setting, YES, makes it is available in the slots provided on the rear of toner...provides automatic I /O to 50 percent less toner than standard mode printing by most newer computers. Flash Optional flash is possible that is OFF. The HP LaserJet 4300 series printer formatter incorporates a 350 MHz RISC processor. 128...
Service Manual
Page 259
...Press the SELECT ( ) button to help restore values after servicing the printer. Print a configuration page before replacing the formatter assembly. For more information about control panel menus, see the HP LaserJet 4200/4300 Use Guide. q Menu map: A menu map shows how individual items...installed. Press the SELECT ( ) button to calculate toner usage). Print a menu map before changing printer settings or before servicing the printer to select INFORMATION. 4. It provides useful accounting information (for the printer are discussed in detail in the following order: Q2431...
...Press the SELECT ( ) button to help restore values after servicing the printer. Print a configuration page before replacing the formatter assembly. For more information about control panel menus, see the HP LaserJet 4200/4300 Use Guide. q Menu map: A menu map shows how individual items...installed. Press the SELECT ( ) button to calculate toner usage). Print a menu map before changing printer settings or before servicing the printer to select INFORMATION. 4. It provides useful accounting information (for the printer are discussed in detail in the following order: Q2431...
Service Manual
Page 329
... appears on the control panel if average toner coverage is always used, it has been disassembled or refilled. Advise the customer to 50%. If EconoMode is less than five percent. Q2431-90912 Chapter 7 Troubleshooting 309 If dark areas appear, stop the printer and wait a few minutes This should eliminate most defective ... EconoMode creates draft-quality printing by reducing the amount of EconoMode. Note CAUTION Check the print cartridge Image-formation defects are rated for 12,000 (LaserJet 4200) and 18,000 (LaserJet 4300) images at five percent coverage. It is still operable.
... appears on the control panel if average toner coverage is always used, it has been disassembled or refilled. Advise the customer to 50%. If EconoMode is less than five percent. Q2431-90912 Chapter 7 Troubleshooting 309 If dark areas appear, stop the printer and wait a few minutes This should eliminate most defective ... EconoMode creates draft-quality printing by reducing the amount of EconoMode. Note CAUTION Check the print cartridge Image-formation defects are rated for 12,000 (LaserJet 4200) and 18,000 (LaserJet 4300) images at five percent coverage. It is still operable.
Service Manual
Page 340
... 4. Shake the print cartridge gently to redistribute the toner. is low or the print cartridge 1. The fuser is damaged. q Replace the fuser. Dirty mirror in order: 1. q Replace the laser/scanner assembly. See "Laser/scanner assembly" on page 325. 320 Troubleshooting Q2431-90912... the tray 1 feed roller and the other sources of 12,000 pages for the HP LaserJet 4200 printer and 18,000 pages for contamination. Check for other tray's rollers for the HP LaserJet 4300 printer. This type of defect might also be a repetitive defect, See "Repetitive defects troubleshooting...
... 4. Shake the print cartridge gently to redistribute the toner. is low or the print cartridge 1. The fuser is damaged. q Replace the fuser. Dirty mirror in order: 1. q Replace the laser/scanner assembly. See "Laser/scanner assembly" on page 325. 320 Troubleshooting Q2431-90912... the tray 1 feed roller and the other sources of 12,000 pages for the HP LaserJet 4200 printer and 18,000 pages for contamination. Check for other tray's rollers for the HP LaserJet 4300 printer. This type of defect might also be a repetitive defect, See "Repetitive defects troubleshooting...