Ricoh VT3500, Руководство по обслуживанию

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2. 7 < L (L=8, 9, or more)
When the shifting length L is longer than 7 millimeters, the image of the
original is moved backwards by advancing the master feed timing in the
master making process.
If the shifting length L is +8 millimeters, the master starts being fed when the
original is fed 7.5 millimeters (after the drum stops rotating). Thus the master
feed timing is advanced 1 millimeter in the original transport length compared
with the timing of "L=+7 millimeters". Therefore, the image is moved
backwards 8 millimeters on the print. When L is more than 8 millimeters, the
master feed timing is accordingly advanced.
If L is more than 7, the master plotting signal is energized when the original is
fed 8.5 millimeters (after the drum stops rotating). Therefore, the original
scanned from 3 millimeters after the leading edge of the original. When L is 8
millimeters, the scanned image is plotted on the master from the line that
corresponds to the line (on the print) 11 millimeters from the leading edge.
This means that the print has a blank of 11 millimeters or more on the leading
edge when L is more than 8 millimeters.
410 mm(Max.)
218.5 in Drum Rotation
High Speed
8.5 mm
Second Drum Position
Sensor
[Master Making Process]
Main Motor Reversing
Original Registration
Sensor
Original Transport
Motor
Master Feed Motor
Original Scanning
Signal
Master Plotting Signal
410 mm (Max.)
3 mm
15 mm
8.5 mm
Scanning Signal
Start Position
Exposure Glass
CCD Scan Line
Original Registration
Sensor
Original
Guide Plate
Plotting Signal
Start Position
1 December 1993
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