Latent-image formation block ....................................................................................... 28 Pre-exposure ................................................................................................ 28 Primary charging .......................................................................................... 28 Laser beam exposure ................................................................................... 29 Developing block ............................................................................................................
30 Transfer block ................................................................................................................. 31 Primary transfer ........................................................................................... 31 Secondary transfer ....................................................................................... 31 Separation .................................................................................................... 32 Fusing block ....................................................................................................................
32 ITB cleaning block ........................................................................................................... 33 Drum cleaning block ....................................................................................................... 33 Print cartridges .................................................................................................................................. 34 Memory tag ..................................................................................................................... 35 Cartridge presence detection .........................................................................................
35 Toner level detection ...................................................................................................... 35 Cartridge life detection ................................................................................................... 35 Developing unit engagement and disengagement control ........................................... 35 ITB unit .............................................................................................................................................. 37 Primary transfer roller engagement and disengagement control ................................
38 ITB unit presence detection ............................................................................................ 39 ITB cleaning mechanism ................................................................................................. 39 Calibration ......................................................................................................................................... 40 Color-misregistration control ........................................................................................ 40 Environment change control ..........................................................................................
41 Image stabilization control ............................................................................................. 42 Image density control (DMAX) ...................................................................... 42 Image halftone control (DHALF) .................................................................. 42 Pickup, feed, and delivery system ...................................................................................................................... 43 Photo sensors ...................................................................................................................................
45 Motors and solenoids ........................................................................................................................ 46 Pickup and feed block ....................................................................................................................... 46 Tray 2 cassette pickup .................................................................................................... 46 Tray 2 cassette multiple-feed prevention ..................................................................... 47 Tray 2 cassette media-size detection and Tray 2 cassette-presence detection ..........
49 Tray 2 cassette lift-up operation ................................................................................... 50 Cassette media-presence detection .............................................................................. 52 Tray 1 (MP tray) paper pickup ........................................................................................................... 52 Tray 1 (MP tray) last-paper detection .............................................................................................. 53 Paper feed .........................................................................................................................................
54 Skew-feed prevention .................................................................................................... 55 vi ENWW