Print the configuration page ............................................................................. 81 Printing a menu map ........................................................................ 82 Downloading the new firmware from the HP Web site ...................................... 82 Downloading the new firmware to the device .................................................... 82 Troubleshooting firmware updates .................................................................... 82 Remote firmware update by using FTP through a browser ............................... 84 Remote firmware update by using FTP on a direct network connection ...........
85 Remote firmware update through a local MS Windows port ............................ 86 Windows NT 4.0, Windows 2000, Windows XP, Windows XP or Windows 2003 .................................................................................. 86 Remote firmware update through a USB port ................................................... 87 Remote firmware update through an MS Windows network ............................ 88 Remote firmware update for UNIX systems ..................................................... 89 Remote firmware update by using the LPR command ..................................... 89 Remote firmware update through HP Web Jetadmin .......................................
90 Manage supplies ................................................................................................................................ 92 Supplies life ....................................................................................................................... 92 Approximate print-cartridge replacement intervals ............................................................ 92 Manage the print cartridge ................................................................................................. 92 Print-cartridge storage .......................................................................................
92 Use genuine HP print cartridges ....................................................................... 92 HP policy on non-HP print cartridges ................................................................ 92 Print-cartridge authentication ............................................................................ 93 HP fraud hotline and Web site .......................................................................... 93 Replace supplies and parts ................................................................................................................ 94 Supply replacement guidelines ..........................................................................................
94 Change the print cartridge ................................................................................................. 94 Perform preventive maintenance ....................................................................................... 97 Preventive maintenance for the print engine .................................................... 97 The ADF maintenance kit .................................................................................. 97 Clean the device .................................................................................................................................
98 Clean the exterior .............................................................................................................. 98 Clean the scanner glass .................................................................................................... 98 Clean the scanner lid backing ............................................................................................ 99 Clean the ADF ................................................................................................................. 100 Clean the print engine paper path ...................................................................................
100 4 Theory of operation MFP system overview ...................................................................................................................... 104 Print engine ...................................................................................................................................... 106 Basic sequence of operation ........................................................................................... 106 Power-on sequence ......................................................................................................... 107 Engine control system .....................................................................................................
107 DC controller PCA ........................................................................................... 108 High-voltage power-supply PCA ..................................................................... 109 Low-voltage power-supply PCA ...................................................................... 112 Video interface control .................................................................................... 113 Laser/scanner system ...................................................................................................... 113 Image-formation system ..................................................................................................
114 Electrostatic latent-image formation block ...................................................... 116 ENWW v