Paper Feed And Registration - Ricoh FW 810 Service Manual

6 January 1990

8. PAPER FEED AND REGISTRATION

[A]
[D]
8.1 OVERVIEW
[B]
[C]
In this copier, paper is fed either manually or by the auto sheet feeder
(option).
For manual feed, the copy paper is inserted until it contacts the manual feed
rollers [A]. At that time the paper turns on the 1st feed detector [B], 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 [C]. If using the auto sheet 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 [D]. 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 coarse registration adjustments can be made using service program
modes #26 and #27 respectively.
2-34