Data affected ..................................................................................................... 90 Additional Information ....................................................................................... 91 Job storage ....................................................................................................... 91 DSS authentication ............................................................................................................ 91 Lock the control-panel menus ............................................................................................
91 Lock the formatter cage ..................................................................................................... 92 Manage supplies ................................................................................................................................ 93 Print-cartridge storage ....................................................................................................... 93 HP policy on non-HP print cartridges ................................................................................. 93 HP fraud hotline and Web site ...........................................................................................
93 Replace supplies ............................................................................................................... 93 Supplies life ....................................................................................................... 93 Locate supplies ................................................................................................. 94 Supply replacement guidelines ......................................................................... 94 Change print cartridges ..................................................................................... 94 Change the toner collection unit ........................................................................
98 Install memory ................................................................................................. 100 Install DDR memory DIMMs ........................................................... 100 Enable memory for Windows .......................................................... 104 Install an HP Jetdirect or EIO print server card or EIO hard disk ... 105 Clean the product ............................................................................................................................. 108 Clean the outside of the product ......................................................................................
108 Clean the touchscreen ..................................................................................................... 108 Clean the scanner glass .................................................................................................. 108 Clean the document feeder ............................................................................................. 108 Clean the document-feeder backing ............................................................... 109 Clean the document-feeder rollers ..................................................................
110 Clean the fuser ................................................................................................................ 111 Product updates ............................................................................................................................... 112 Determine the current firmware version ........................................................................... 112 Download new firmware from the HP Web site ............................................................... 112 Transfer the new firmware to the product ........................................................................
112 Use the flash executable file to update the firmware ...................................... 112 Use FTP to upload the firmware through a browser ....................................... 113 Use FTP to upgrade the firmware on a network connection ........................... 113 Use HP Web Jetadmin to upgrade the firmware ............................................. 114 Use Microsoft Windows commands to upgrade the firmware ......................... 114 5 Theory of operation Basic operation .................................................................................................................................
116 Sequence of operation ..................................................................................................... 116 Engine-control system ...................................................................................................................... 118 DC controller .................................................................................................................... 119 ENWW v