HP M750 series

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