Gestetner A294, Service Manual

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PAPER PRE-STACKING
A294/A295 8-8 SM
2.2 PAPER PRE-STACKING
This mechanism improves productivity in staple mode. It is only used when copying
on A4, LT, or B5 (all sideways).
During stapling, the copier has to wait. This mechanism reduces the wait by
holding the first two sheets of a job while the previous job is still being stapled. It
only works during the second and subsequent sets of a multi-set copy job.
The pre-stack junction gate solenoid [A] turns on about 230 ms after the 1st sheet
of paper turns on the entrance sensor, and this directs the sheet to the pre-stack
tray [B]. (This sheet cannot be fed to the stapler yet, because the first set is still
being stapled.) The pre-stack paper stopper solenoid [C] turns on about 680 ms
after the 1st sheet turns on the entrance sensor. The pre-stack paper stopper [D]
then stops the paper.
The pre-stack junction gate solenoid turns off 450 ms after the trailing edge of the
1st sheet passes through the entrance sensor, and the 2nd sheet is sent to the
paper guide [E]. The pre-stack paper stopper is released about 50 ms after the 2nd
sheet turns on the pre-stack stopper sensor [F], and the two sheets of copy paper
are sent to the stapler tray. All sheets after the 2nd sheet go to the stapler tray via
the paper guide [E].
B302D000.WMF
[F]
[E]
[A]
[B]
[D]
[C]
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA