color control ...................................................................................................................... 4-9 resolution enhancements ..................................................................................................... 4-9 printer interfaces.................................................................................................................. 4-10 Universal Serial Bus (USB) interface.................................................................................... 4-10 IEEE 1284-B parallel Centronics interface ...........................................................................
4-10 hp EIO Interface............................................................................................................... 4-10 paper path.......................................................................................................................... 4-12 pick and separation system ............................................................................................... 4-12 converger system.............................................................................................................. 4-12 linefeed system.................................................................................................................
4-12 output system ................................................................................................................... 4-13 ink supply station................................................................................................................. 4-14 supplying ink to the printheads........................................................................................... 4-14 collecting excess ink ......................................................................................................... 4-14 carriage system ...................................................................................................................
4-15 driving printheads across the page..................................................................................... 4-15 service station ..................................................................................................................... 4-16 spitting ink....................................................................................................................... 4-16 wiping printheads ............................................................................................................ 4-16 capping printheads .......................................................................................................... 4-16 duplexer vs.
simplexer.......................................................................................................... 4-17 managing output of paper................................................................................................. 4-17 providing access to paper jams ......................................................................................... 4-17 duplexing printed pages ................................................................................................... 4-17 Tray 3 ................................................................................................................................
4-18 extending media capacity ................................................................................................. 4-18 power supply ...................................................................................................................... 4-19 providing power to printer components............................................................................... 4-19 electronics .......................................................................................................................... 4-20 formatter PCA .....................................................................................................................
4-22 communicating with the computer ...................................................................................... 4-22 processing PCL or PS commands........................................................................................ 4-22 controlling EIO devices ..................................................................................................... 4-22 main logic PCA ................................................................................................................... 4-23 writing system and marking engine ....................................................................................
4-23 printer internal logic ......................................................................................................... 4-23 sensors ............................................................................................................................... 4-24 vacuum system .................................................................................................................... 4-26 holding the page flat during printing .................................................................................. 4-26 aerosol system.....................................................................................................................
4-27 removing fine particles from the printzone........................................................................... 4-27 post-heater system................................................................................................................ 4-28 drying the page before ejection ......................................................................................... 4-28 LCD messages..................................................................................................................... 4-29 status messages................................................................................................................
4-29 warning messages............................................................................................................ 4-29 error messages................................................................................................................. 4-29 critical error messages ...................................................................................................... 4-29 paper handling ................................................................................................................... 4-38 1-8 hp restricted consolidated table of contents