Service Manual
Page 6
... and replacing the stapler unit 60 Loading staples 62 Downloading a remote firmware update 63 5 Theory of operation Introduction 67 Basic operation of the printer 67 General descriptions 69 DC controller PCA 69 Power supply 71 Laser/scanner assembly 76 Paper pickup system 78 Paper pickup and feed block ...79 Printing from tray 1 80 Printing from tray 2 82 Media skew prevention 85 Fixing/delivery block 86 Printer jam detection 87 Printing from the 500-sheet...
... and replacing the stapler unit 60 Loading staples 62 Downloading a remote firmware update 63 5 Theory of operation Introduction 67 Basic operation of the printer 67 General descriptions 69 DC controller PCA 69 Power supply 71 Laser/scanner assembly 76 Paper pickup system 78 Paper pickup and feed block ...79 Printing from tray 1 80 Printing from tray 2 82 Media skew prevention 85 Fixing/delivery block 86 Printer jam detection 87 Printing from the 500-sheet...
Service Manual
Page 73
... Cleaning the printer and accessories 54 Cleaning the fuser 55 Running the cleaning page manually 56 To run the cleaning page manually 56 Running the cleaning page automatically ... 60 Removing and replacing the stapler unit 60 To remove and replace the stapler unit 60 Loading staples 62 To load staples 62 Downloading a remote firmware update 63 Q2431-90912 Chapter 4 Printer maintenance 53
... Cleaning the printer and accessories 54 Cleaning the fuser 55 Running the cleaning page manually 56 To run the cleaning page manually 56 Running the cleaning page automatically ... 60 Removing and replacing the stapler unit 60 To remove and replace the stapler unit 60 Loading staples 62 To load staples 62 Downloading a remote firmware update 63 Q2431-90912 Chapter 4 Printer maintenance 53
Service Manual
Page 83
... of three steps: 1. Downloading a remote firmware update Note Note Not all HP LaserJet 4200/4300 printers support remote firmware updates. Downloading a RFU is currently installed (print a configuration page; Install the update. Go to downloading printing-system software and printer drivers. For more information about RFUs, contact your printer. A remote firmware update (RFU) can be downloaded from http://www.hp.com/go/lj4200_firmware or http...
... of three steps: 1. Downloading a remote firmware update Note Note Not all HP LaserJet 4200/4300 printers support remote firmware updates. Downloading a RFU is currently installed (print a configuration page; Install the update. Go to downloading printing-system software and printer drivers. For more information about RFUs, contact your printer. A remote firmware update (RFU) can be downloaded from http://www.hp.com/go/lj4200_firmware or http...
Service Manual
Page 153
...verify that are sensitive to the product. See "Downloading a remote firmware update" on the product. To identify the left side and right side of the printer, face tray 1 on page 241. Never operate or service the printer when the protective cover is generally the reverse of removal. Always...on page 240 and"Configuration page" on the front of the accessories and print media, the print cartridge, and tray 2 from the laser/scanner assembly. Replacement is removed from the product. Required tools q #2 Phillips screwdriver q small flat-blade screwdriver q needle-nose pliers q ESD ...
...verify that are sensitive to the product. See "Downloading a remote firmware update" on the product. To identify the left side and right side of the printer, face tray 1 on page 241. Never operate or service the printer when the protective cover is generally the reverse of removal. Always...on page 240 and"Configuration page" on the front of the accessories and print media, the print cartridge, and tray 2 from the laser/scanner assembly. Replacement is removed from the product. Required tools q #2 Phillips screwdriver q small flat-blade screwdriver q needle-nose pliers q ESD ...
Service Manual
Page 303
... a DIMM, see figure 98 on page 160. 8. Turn the printer off then on the formatter to htpp://www.hp.com/ by a 79 SERVICE ERROR. 4300 printers can be caused 3. Select Download In some instances, electrical Drivers and Software. Other causes include page. If this firmware image poor-quality parallel cables, poor is newer than the...
... a DIMM, see figure 98 on page 160. 8. Turn the printer off then on the formatter to htpp://www.hp.com/ by a 79 SERVICE ERROR. 4300 printers can be caused 3. Select Download In some instances, electrical Drivers and Software. Other causes include page. If this firmware image poor-quality parallel cables, poor is newer than the...
Service Manual
Page 314
.../ support/LJ4200 or htpp:// www.hp.com/support/ LJ4300. Select Download Drivers and Software. If the problem persists, reseat the firmware DIMM. 3. Check for the latest firmware image version at the bottom of the page. Not all HP LaseJet 4200/ 4300 printers can receive a firmware update, download the newer firmware upgrade. See "Firmware DIMM" on . 2. Replace the formatter. Table 42...
.../ support/LJ4200 or htpp:// www.hp.com/support/ LJ4300. Select Download Drivers and Software. If the problem persists, reseat the firmware DIMM. 3. Check for the latest firmware image version at the bottom of the page. Not all HP LaseJet 4200/ 4300 printers can receive a firmware update, download the newer firmware upgrade. See "Firmware DIMM" on . 2. Replace the formatter. Table 42...