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
Automatic document feed system ............................................................................... 46
Sensors in the ADF ................................................................................... 46
ADF paper path ....................................................................................... 47
Stapler (stapling models only) .................................................................... 48
2 Solve problems ............................................................................................................... 49
Solve problems checklist ......................................................................................................... 50
Menu map ............................................................................................................................ 52
Preboot menu options ............................................................................................................. 53
Current settings pages ............................................................................................................ 60
Troubleshooting process .......................................................................................................... 61
Determine the problem source ................................................................................... 61
vi ENWW
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