Sharp SF-A57 Service Manual page 18

6. Semi-circular roller, paper feed roller
disassembly
1
Open the paper feed cover.
2
Loosen two fixing screws of the tray guide top, and remove two
fixing screws of the side.
3
Remove the harness from the tray guide upper, and remove the
tray guide.
(Be careful not to damage the harness.)
Tray guide
Side fixing
screw
(Remove.)
Harness
(Remove.)
4
Remove the snaps from the both ends of the pickup shaft and the
separation shaft. (2 kinds of snaps)
5
Remove the pickup shaft bearing and the separation shaft bearing
on the front frame side.
6
Slide the pickup shaft toward the rear frame, and pull out the front
frame side from the chassis.
7
Remove the shaft stopper and the parallel pin from the pickup
shaft and remove the semi-circular shaft.
8
Slide the separation shaft toward the rear frame, and pull out the
front frame side from the chassis.
9
Remove the shaft stopper from the separation shaft, and remove
the paper feed roller.
Semi-circular roller
Parallel pin
Shaft stop
Pickup shaft
Snap
Separation shaft
Rear frame
side
Side fixing screw
(Remove.)
Top fixing screw
(Remove.)
Bearing
Snap
Shaft stop
Paper feed
roller
Front frame
side
7. Open/close switch attachment
When closing the transport section from the open state, adjust the
DF open SW plate so that the clearance between the glass surface
and the DF spacers L and R (front side) is 10 ∼ 40mm. Then tighten
the fixing screw.
10~40mm
Microswitch
8. Original transport belt replacement
1
Remove the belt unit.
2
Remove the two screws shown in the figure below to allow the
belt tension plate to be moved. Remove the transport belt with the
left and the right in parallel.
– 17 –
Fixing
screw
DF open SW plate
Original
transport
belt
Screw
(Remove.)
Belt tension plate