HP Color LaserJet Professional CP5220 - Page 6

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 ................................................................................. 41
Image density control (DMAX) .......................................................... 42
Image halftone control (DHALF) ....................................................... 42
Pickup, feed, and delivery system ...................................................................................................... 43
Photo sensors .................................................................................................................... 44
Motors and solenoids ......................................................................................................... 45
Pickup and feed block ........................................................................................................ 45
Cassette pickup ................................................................................................. 45
Cassette multiple-feed prevention ..................................................................... 46
Tray 1 (MP tray) paper pickup ........................................................................................... 47
Tray 1 (MP tray) last-paper detection ................................................................................ 48
Paper feed ......................................................................................................................... 49
Skew-feed prevention ....................................................................................... 50
Feed-speed control ........................................................................................... 51
Fusing and delivery block .................................................................................................. 52
Loop control ...................................................................................................... 52
Pressure roller pressurization and depressurization control ............................. 53
Output bin full detection .................................................................................... 55
Duplex block (duplex models only) .................................................................................... 56
Jam detection .................................................................................................................... 57
Paper feeder ....................................................................................................................................... 59
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