Paper Feed And Registration - Ricoh FW830 Service Manual

PAPER FEED AND REGISTRATION

31 December 1992
8. PAPER FEED AND REGISTRATION
8.1 OVERVIEW
[D]
[F]
[E]
[G]
[A]
[B]
[C]
In this copier, paper is fed either manually [A], or by the sheet feeder [B]
(option), or roll feeder [C] (option).
For manual feed, the copy paper is inserted until it contacts the manual feed
rollers [D]. At that time the paper turns on the 1st feed sensor [E], which
causes the main motor to turn on. Two seconds after the main motor turns
on, the manual feed solenoid turns on and the manual feed rollers start
turning to feed the paper to the registration rollers [F]. If using the auto sheet
feeder or roll feeder, copy paper feeds through the manual feed rollers
automatically after the original is inserted.
Just before the paper reaches the registration rollers it activates the
registration sensor [G]. The manual feed solenoid turns off 0.4 second after
that. The 0.4 second delay allows the leading edge of the paper to align
against the registration rollers (which are not turning at this time) to eliminate
skew.
The registration clutch turns on to feed the paper to the drum. It is energized
at the proper time to align the leading edge of the paper with the leading
edge of the developed image on the drum.
Fine and rough registration adjustments can be made using service program
modes #26 and #27 respectively.
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