HP 1100AHP - Manual (Page 56)

54 Functional Overview C4224-90962
3 Paper sensor (PS001)
4 Pickup roller
5 Paper sensor (PS002)
6 Transfer roller
7 Toner cartridge
8 Pressure roller
9 Fusing unit
10 Paper exit sensor
11 Delivery rollers
12 Face-up/Face-down deflector
13 Face-down output path
14 Face-up output path
Paper jam detection
The paper out sensor (PS001), paper registration sensor (PS002), and the paper exit sensor
(PS201) detect paper moving through the HP LaserJet 1100 Printer. If a paper jam is
detected, the ECU immediately stops the printing process and displays a paper jam
message on the control panel.
A paper jam can be detected under any of the following conditions:
• Power-on jams. Paper is present under either (PS201) or (SL001) at power on.
• Pickup jams. Paper does not reach and clear photosensor (SL001) within a specified
period of time. The time period begins when the Paper Pickup Solenoid (SL001) is
energized.
• Delay jams. Paper does not reach or clear the photosensor (PS201) within a specified
period of time.
• Wrapping Jam Photosensor (PS201) detects the trailing edge of the paper within a
specified period of time after photosensor (SL001) detects the trailing edge.