Ricoh FT4215, Service Training Manual

Page: 165 / 208

7. FIRST SIDE COPY
7.1 FROM COPIER PAPER FEED SECTION TO DUPLEX
ENTRANCE ROLLER
When the copier 1st paper feed clutch turns on, the jogger motor turns on
and drives the three jogger fences into position 10 mm from the edges of the
copy paper. (This position is determined by cassette coding.) The registration
clutch then turns on and the duplex gate solenoid [A] energizes to raise the
duplex gate [B]. The duplex gate solenoid stays on until first side copying is
finished.
The copy is then directed to the duplex turn guide, where it is fed by the
transport rollers [C] to the entrance rollers [D]. The leading edge of the copy
activates the duplex entrance sensor [E], which is monitored by the duplex
CPU to detect misfeeds.
[B]
[A]
[E]
[C]
[D]
FT4220/4222 5-8 STM