HP — HP LaserJet M4349x MFP service manual (EN)

Print-cartridge authentication ............................................................................ 86 HP fraud hotline and Web site .......................................................................... 86 Clean the device ................................................................................................................................. 87 Clean the exterior .............................................................................................................. 87 Clean the scanner glass ....................................................................................................

87 Clean the scanner lid backing ............................................................................................ 88 Clean the paper path ......................................................................................................... 88 Clean the document feeder ............................................................................................... 88 Clean the document feeder delivery system ..................................................... 89 Clean the document feeder-rollers ....................................................................

89 Set the real-time clock ........................................................................................................................ 92 Set the date and time ......................................................................................................... 92 Set the date format ............................................................................................ 92 Set the date ....................................................................................................... 92 Set the time format ............................................................................................

92 Set the time ....................................................................................................... 92 Set the wake time .............................................................................................................. 93 Set the sleep delay ............................................................................................................ 93 Upgrading the firmware ...................................................................................................................... 94 Determining the current level of firmware ..........................................................................

94 Downloading the new firmware from the HP Web site ...................................................... 94 Transferring the new firmware to the MFP ........................................................................ 94 Using FTP to upgrade the firmware on a network connection .......................... 94 Using HP Web Jetadmin to upgrade the firmware ............................................ 96 Using MS-DOS commands to upgrade the firmware ........................................ 96 Upgrading the HP Jetdirect firmware .................................................................................

97 Calibrate the scanner ......................................................................................................................... 98 Calibrate the control panel ................................................................................................................. 99 Disable Embedded Jetdirect I/O ....................................................................................................... 100 Select the MFP language .................................................................................................................

101 4 Theory of operation Basic operation ................................................................................................................................. 104 Sequence of operation (printer) ....................................................................................... 104 Sequence of operation (scanner) .................................................................................... 105 Formatter system ............................................................................................................................. 106 Sleep mode ......................................................................................................................

106 Resolution Enhancement technology (REt) ..................................................................... 106 EconoMode ...................................................................................................................... 107 Input/output ...................................................................................................................... 107 CPU ................................................................................................................................. 107 Memory ............................................................................................................................

107 Hard disk ......................................................................................................... 107 vi ENWW