Ricoh VT3500, Руководство по обслуживанию

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[Pressure Plate Up]
When the master has been wrapped around the drum in the master making
process and the master cutter leaves the home position to cut the master, the
pressure plate motor [B] starts rotating to raise the pressure plate.
When the pressure plate motor [B] turns, the gear [C] is driven through the
relay gears. The pin [F] on the gear inserted into the link [D] rises and lifts the
left end of the link, thus raising the pressure plate.
The gear [C] continues turning until the interrupter [G], installed in the front
end of the pressure plate, blocks the upper pressure plate sensor [A]. At this
time, the master eject motor [B] stops and the pressure plate is held in the
upper position.
[Pressure Plate Motor Lock Detection]
To prevent the pressure plate motor from locking, "E-12" lights up on the
operation display panel under the following conditions:
1. The upper [A] or lower [E] pressure plate sensor remains activated for
more than 4 seconds after the pressure plate motor starts turning.
2. The lower pressure plate sensor [E] is not activated within 8 seconds of
the pressure plate motor starts turning even though the upper pressure
plate sensor [A] is de-activated.
3. The upper pressure plate sensor [A] is not activated within 8 seconds of
the pressure plate motor starts turning even though the lower pressure
plate sensor [E] is de-activated.
[A]
[B]
[G]
[C]
[F]
[D]
[E]
1 December 1993
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