Paper Feed Drive Mechanism [A157/A160] - Ricoh A156 Service Manual

11.3 PAPER FEED DRIVE MECHANISM [A157/A159/A160]
[A]
[B]
[C]
The main motor drives the paper feed rollers through the relay clutch gear
[A], the timing belt [B] and the paper feed clutch gear [C].
After the Start key is pressed, the paper feed clutch turns on and the paper
feed rollers start rotating to feed the paper. The paper feed clutch stays on
for 150 ms to turn the paper feed rollers once only (the paper feed clutch is a
one-turn clutch).
This paper feed mechanism uses the corner separation system. The shape
of the corner separators has been changed as shown above. These corner
separators have the following advantages.
•
Dog ear problems were reduced by the changes in angles
•
Multiple paper feeding was reduced by the change in shape at
There are two extra holes for each paper feed roller on the paper feed roller
shaft for use when multiple feed or paper jams occur. The factory-set
position of the paper feed roller is hole [D], which is most suitable for A4, LT
and B size paper. Another [E] is especially suitable for B size paper. The
other, [F], is a general position that is used in Japan, where people are as
likely to use B size paper as A size. If paper jams or non-feed errors occur
for users who mainly use B size paper, change the paper feed roller position
to [E]
STM
[D]
[F]
[E]
2-81
and .
.
A156/A160/A162