Table of contents 1 Theory of operation ........................................................................................................................................... 1 Basic operation ..................................................................................................................................... 2 Sequence of operation ......................................................................................................... 3 Normal sequence of operation ............................................................................
3 Formatter-control system ..................................................................................................................... 5 Formatter hardware ............................................................................................................. 5 Engine-control system .......................................................................................................................... 7 Control panel ....................................................................................................................... 6 DC controller ........................................................................................................................
8 Motors ............................................................................................................... 11 Fans .................................................................................................................. 12 Fuser-control circuit ........................................................................................................... 13 Fuser heater protection ..................................................................................... 15 Low-voltage power supply .................................................................................................
16 Over-current/over-voltage protection ................................................................ 18 High-voltage power supply ................................................................................................ 19 Laser/scanner system ........................................................................................................................ 21 Image-formation system ..................................................................................................................... 22 Image formation process ...................................................................................................
23 Toner cartridge .................................................................................................................. 24 Toner cartridge design ...................................................................................... 24 No-shake toner .................................................................................................. 25 Toner cartridge memory chip ............................................................................ 25 Toner seal .........................................................................................................
25 Toner level detection ......................................................................................... 25 Scanning/image capture system ........................................................................................................ 26 Scanner ............................................................................................................................. 26 Document feeder system ................................................................................................... 27 Document feeder sensors .................................................................................
28 Document feeder simplex operation ................................................................. 29 Document feeder duplex operation ................................................................... 30 Document feeder paper control and deskew .................................................... 32 ENWW v