Image Formation System – 5-22
Photosensitive Drum – 5-23
Drum Sensitivity – 5-24
Cleaning Stage – 5-25
Conditioning Stage – 5-26
Writing Stage – 5-27
Developing Stage – 5-29
Transferring Stage – 5-31
Fusing Stage – 5-32
Paper Feed System – 5-33
Paper Movement Overview – 5-34
Solenoids – 5-35
Photosensors – 5-35
Paper Out Sensor (PS2) – 5-35
Input Paper Sensor (PS1) – 5-36
Printing from the Paper Cassette – 5-37
Manual Feed Printing – 5-38
Small Media Rollers (LaserJet 4P/4MP) – 5-38
Paper Jam Detection – 5-39
Power-On Jams – 5-39
Pickup Jams – 5-39
Delay Jams – 5-39
Basic Sequence of Operation – 5-40
Standard Printer Operation – 5-40
General Timing Diagram – 5-41
Contents Page 2
Chapter 5