Ricoh VT3500, Service Manual

Page: 63 / 330

3. L < 0 (L=-1, -2, or less)
The image of the original is moved forward by transporting the original during
the master eject process, before the master feed and plotting start.
The original is fed 350 milliseconds after the second original sensor is
activated. Once the original stops when it is fed 6.5 millimeters after the
original registration sensor is activated. The original again starts being fed 3.5
seconds after the lamp on signal turns on. This is to allow the fluorescent
lamp to stabilize. At the same time, the original scanning signal is energized.
The CCD reads the platen cover as a standard white level until the leading
edge of the original reaches the CCD scanning position. The original is fed a
little while after that. The waiting time depends on the image shifting length.
8.5 mm
[Master Eject Process]
Master Making Key
Original Registration
Sensor
Original Transport
Motor
Second Original
Sensor
Original Scanning
Signal
6.5 mm
3.5 sec
350 msec
Lamp On Signal
15.5 mm 8.5 mm 6.5 mm
Scanning Signal
Start Position
Exposure Glass
CCD Scan Line
Original Registration
Sensor
Guide Plate
Plotting Signal
Start Position
Original
Shifting Range
1 December 1993
2-27