Ricoh B089 Service Manual page 616

DETAILED SECTION DESCRIPTIONS
1.2.2 PAPER FEED
Overview
The following paper feed out modes can be selected at the printer driver.
Mode
Straight feed out mode
Shift sorting mode
Stapling mode
Straight feed out mode
Before the job, the exit unit [A] is up, and the exit unit gear solenoid [B] is on,
pulling lever [C] away from the exit unit gear [D].
At the start of the job, the stack height detection lever detects the top of the stack.
The tray moves up or down if the top of the stack is not at the correct level.
[H]
[G]
When the paper exit sensor in the main frame turns on, the finisher main motor
starts. It drives the exit unit gear [D] through idle gear [E]. The gear pulls paper exit
unit [A] down, using the paper exit link [F]. The link also moves the paper exit roller
[H] up through the exit roller drive gear [G].
When the motor starts, the solenoid switches off and a spring pushes lever [C] into
contact with the exit unit gear [D].
When a part of the exit unit gear without threads [I] faces the idle gear, the gear
stops turning (see the left-hand diagram). The lever [C] catches a peg on the exit
unit gear, to make sure that it stops at the correct position. The paper exit rollers
[H] now contact each other and the main motor feeds out the paper.
When the last page has been fed out, the solenoid turns on to pull the lever away
from the gear. The gear starts turning, to lift the exit unit to the standby position.
When the other part of the exit unit gear without threads [J] faces the idle gear, the
exit unit gear stops. Then, the main motor stops and the solenoid turns off.
G302/B442
Paper is fed directly to the output tray without shifting or stapling.
Alternate sets are shifted before being fed to the output tray.
All sets are shifted and stapled, then fed to the output tray.
[A]
[F]
[E]
[I]
[B]
[C]
18-16
Description
[J]
[D]
[C]
B442D106.WMF
[G]
B442D109.WMF
SM