Basic Operation - Sharp AR-5132 Service Manual

3. Basic operation

(1) Manual paper feed section operations
1
Before the operation of the manual paper feed section, the
manual paper feed solenoid (MPFS) is OFF and the manual paper
feed stopper is closed and the paper pick-up roller is up. The latch
and the clutch are at positions as shown in the table below.
Manual paper feed stopper
Manual paper
feed pick-up roller
Transfer paper
Manual paper feed
clutch sleeve
Manual paper
feed latch
2
When the start button is pressed, the manual paper feed solenoid
(MPFS) is turned on, and the manual paper feed latch A is dis-
engaged from the manual paper feed clutch sleeve A, and the
manual paper feed roller and the manual paper feed pick-up roller
rotate. At the same time, the manual paper feed stopper is
opened and the manual paper feed pick-up roller is pressed on
the paper to start paper feed.
Manual paper feed stopper
Manual paper
feed pick-up roller
Manual paper feed
clutch sleeve
C
Manual paper
ON
feed latch
Manual paper feed roller
Manual pressing plate
Manual paper feed
C
clutch sleeve A
A B
Manual paper
feed latch A
Manual paper
feed solenoid
Manual paper feed roller
Manual paper feed
clutch sleeve A
A
B
Manual paper
feed latch A
Manual paper
feed solenoid
3
When the manual paper feed clutch sleeve pawl C is caught by
the manual feed latch, the manual fed stopper falls and the
manual feed pick-up roller rises. At the time, the transport roller is
rotating.
Transfer paper
Manual paper feed
clutch sleeve
Manual paper
feed latch
ON
4
When the tip of the transferred paper is detected by PPD2, the
manual paper feed solenoid is turned off after about 0.2 sec. At
that time, the clatch sleeve pawl B is caught by the manual paper
feed latch.
As a result, the paper is warped between the resist roller and the
paper feed roller.
Transfer paper
Manual paper feed
clutch sleeve
Manual paper feed latch
4 – 2
Manual paper feed pick-up roller
Manual paper feed stopper
Manual paper feed roller
Manual clutch sleeve A
A
B
C
Manual paper
feed latch A
Manual paper
feed solenoid
Manual paper feed pick-up roller
Manual paper feed stopper
Manual paper feed roller
Manual paper feed clutch sleeve A
Manual paper feed latch A
A
C
B
OFF
Manual paper feed solenoid
Resist roller