Detailed Descriptions; Basic Operation - Gestetner B003 Service Manual

BASIC OPERATION

2. DETAILED DESCRIPTIONS

2.1 BASIC OPERATION
[B]
[C]
[A]
[E] [B]
B376V501.WMF
[D]
B376V500.WMF
When the leading edge of the first sheet of copy paper reaches the copier's hot
roller, the tray motor [A] starts and turns off approximately 0.5 s after the trailing
edge of the paper passes through the exit rollers [B].
The tray lock sensor [C] checks whether the tray motor rotates or not. When the
tray lock sensor does not generate pulses for 300 ms while the tray motor is on, the
copier will stop and display an SC code.
The paper sensor [D] checks whether there is paper in the tray or not. The paper
sensor turns on when paper is stacked in the tray, and the paper indicator is turned
on.
The paper limit sensor [E] detects when the tray is full. While a sheet of copy paper
is passing this sensor, the sensor feeler is always pushed up by the paper. When
the paper limit sensor stays on for more than the expected time (based on the copy
speed and paper size), the copier indicates that the tray is full.
B003/B004/B006/B007 12-4 SM