Clean the 3X500 sheet input tray .................................................................................... 124 Clean the IPTU ................................................................................................................ 125 Clean the touchscreen ..................................................................................................... 125 Clean the scanner glass .................................................................................................. 125 Cleaning the ADF delivery system ...................................................................................
126 Clean the ADF delivery system ....................................................................... 126 Clean the ADF rollers ...................................................................................... 127 ADF maintenance kit ........................................................................................................................ 129 Calibrate the scanner ....................................................................................................................... 130 Upgrade the firmware .......................................................................................................................
131 Determine the current firmware version ........................................................................... 131 Download new firmware from the HP Web site ............................................................... 131 Transfer the new firmware to the product ........................................................................ 131 Use FTP to upload the firmware through a browser ....................................... 131 Use FTP to upgrade the firmware on a network connection ........................... 132 Use HP Web Jetadmin to upgrade the firmware .............................................
133 Use MS-DOS commands to upgrade the firmware ......................................... 133 Use the HP Jetdirect firmware ......................................................................................... 133 Set the real-time clock ...................................................................................................................... 135 Set the date format .......................................................................................................... 135 Set the date .....................................................................................................................
135 Set the time format .......................................................................................................... 135 Set the time ...................................................................................................................... 135 5 Theory of operation Basic operation ................................................................................................................................. 138 Sequence of operation .....................................................................................................
138 Formatter system ............................................................................................................................. 140 Sleep mode ...................................................................................................................... 140 Resolution Enhancement technology (REt) ..................................................................... 140 Input/output ...................................................................................................................... 141 CPU .................................................................................................................................
141 Memory ............................................................................................................................ 141 Hard disk ......................................................................................................... 141 Random-access memory ................................................................................ 141 DIMM slot ........................................................................................................ 141 Nonvolatile memory ........................................................................................
141 PJL overview ................................................................................................................... 141 PML ................................................................................................................................. 142 Control panel ................................................................................................................... 142 Engine-control system ...................................................................................................................... 143 DC controller ....................................................................................................................
144 Solenoids ........................................................................................................ 144 vi ENWW