HP LaserJet Enterprise 500 MFP M525 - Engine-control system; Image-formation system; Pickup, feed, and delivery system; Tray 1 or Tray 2

Image formation process .......................................................................................... 29
Latent-image formation stage ..................................................................... 30
Primary charging ...................................................................... 30
Laser beam exposure ................................................................. 30
Developing stage ..................................................................................... 31
Toner cartridge ......................................................................... 31
Transfer stage .......................................................................................... 32
Fusing stage ............................................................................. 32
Cleaning stage ......................................................................... 33
Toner detection ....................................................................................................... 34
Pickup, feed, and delivery system ............................................................................................. 35
Paper trays ............................................................................................................. 35
Photo sensors and switches ...................................................................................... 36
Solenoids and clutches ............................................................................................ 38
Tray 1 or Tray 2 .................................................................................................................... 40
Pickup and feed unit ................................................................................................ 40
Cassette paper size detection/cassette paper detection ................................ 40
Cassette pickup ........................................................................................ 40
Tray 1 paper pickup ................................................................................................ 40
Paper pickup and feed ............................................................................................ 41
Jam detection ......................................................................................................... 42
Additional tray ...................................................................................................................... 43
Tray driver PCA ...................................................................................................... 43
Paper pickup and feed ............................................................................................ 44
Paper level and size detection .................................................................................. 45
Jam detection ......................................................................................................... 45
Scanning/image capture system .............................................................................................. 46
Control panel ......................................................................................................... 46
Scanner ................................................................................................................. 46
Document feed system ............................................................................................. 46
Document feeder operation (standard model) .............................................. 47
Sensors in the document feeder (standard model) .......................... 47
Document feeder paper path (standard model) ............................. 48
Document feeder simplex operation (standard model) .................... 49
Document feeder duplex operation (standard model) ..................... 50
Document feeder operation (M525c model) ................................................ 53
Sensors in the document feeder (M525c model) ............................ 53
Document feeder paper path (M525c model) ............................... 55
Document feeder simplex operation (M525c model) ...................... 56
Document feeder e-duplex operation (M525c model) ..................... 57
Frontside and backside background selector (M525c model) .......... 57
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