Paper Feed Section - Sharp AL-1600 Service Manual

Al series
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AL-1610
Makes the laser scanning speeds at both ends of the drum same as
each other.
a ≠ b ≠ c
a
b
c

5. Paper feed section

A. Basic structure
1
No. 1 cassette paper feed roller (Semi-circular roller)
2
Main motor
3
No. 1 cassette paper feed solenoid
4
No. 1 cassette paper feed roller clutch
5
Manual paper feed roller
6
Manual paper transport roller
7
Manual paper feed roller clutch
8
Manual paper transport roller clutch
9
Manual paper feed roller solenoid
10
Manual paper transport roller solenoid
11
Resist roller
12
Resist roller clutch
13
Resist roller solenoid
B. Brief descriptions of operations
This machine allows two ways of paper feed system: cassette paper
feed and manual paper feed.
The cassette of universal type is employed to hold 250 sheets. The
front loading system allows to attach or detach the cassette from the
front of the machine.
Paper size can be selected by the user.
Since this model is not equipped with the automatic paper select
function, paper size detection is not performed.
B. Laser beam path
d = e = f
d e
f
Picks up paper from No. 1 cassette.
Drives the process section and the paper transport section.
Rotates and controls No. 1 cassette paper feed roller.
Drives No. 1 cassette paper feed roller.
Picks up paper from the manual paper feed tray.
Transport paper which was picked up from the manual paper feed tray.
Drives the manual paper feed roller.
Drives the manual paper transport roller.
Rotates and controls the manual paper feed roller.
Rotates and controls the manual paper transport roller.
Takes synchronization between the paper lead edge and the image lead edge.
Drives the resist roller.
Rotates and controls the resist roller.
(1) Cassette paper feed operation
Select the cassette and press the START button, and the paper feed
roller solenoid will be turned on and the paper feed clutch will be
released.
The drive power of the main motor is transmitted through the paper
feed roller clutch to the paper feed roller, rotating the paper feed roller
and feeding paper.
6 – 6

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