Relay Feed And Registration - Ricoh FT5540 Service Manual

31 August 1989

10.7 RELAY FEED AND REGISTRATION

The relay rollers [A] and the registration rollers [B] feed paper from the second paper feed
station to the transfer section. From the first paper feed station, paper is fed directly to the
registration rollers and then on to the transfer section.
When feeding paper from the second cassette, the relay rollers take over the paper feed until
the paper reaches the registration rollers.
The paper feed motor [C] drives the relay rollers via the paper feed chain [D], gears, and the
relay roller clutch [E].
Skew Correction
The registration sensor [F] is positioned just before the registration rollers. When the sensor
detects the leading edge of the copy paper a timer starts (84 milliseconds: first feed station, 40
milliseconds: second feed station). At the end of the timing period, the CPU turns off the first
feed clutch or the relay feed clutch (second feed station). This delay allows time for the paper
to press against the registration rollers and buckle slightly to correct skew.
2-72