Read Sharp AR-285 (serv.man11) Service Manual online
(2) Paper feed off-center adjustment
When the center of No. 1 and No. 2 paper feed trays is shifted with
the reference of manual paper feed and the self print, adjust as
follows.
the reference of manual paper feed and the self print, adjust as
follows.
1) Loosen the fixing screws a and b of the front cabinet of the paper
feed tray.
When fixing the front cabinet, the clearance between fixing
screw a and the cabinet and the clearance between fixing
screw b and the cabinet are symmetric.
screw a and the cabinet and the clearance between fixing
screw b and the cabinet are symmetric.
[Reference view]
2) Shift the front cabinet and adjust.
Move the front cabinet in the direction of A.
Move the front cabinet in the direction of B.
F. Paper transport
(1) Separation pawl operation timing adjustment
This adjustment is to adjust the time from when the resist roller is
turned on to when the drum separation pawl is turned on.
turned on to when the drum separation pawl is turned on.
1) Execute SIM 51-1.
2) Change value A and adjust the separation pawl operating timing.
Initial value:
310 ms
1 step:
1ms
Adjustment range:
1
∼
999ms
If the adjustment value is improper, a paper jam may resulted.
(2)
Resist amount adjustment
This adjustment is to adjust the timing (paper contact pressure) for
the resist roller in each paper feed mode.
the resist roller in each paper feed mode.
By changing the time difference (timing) between the transport roller
ON and the resist roller ON, the paper contact pressure on the resist
roller is changed.
ON and the resist roller ON, the paper contact pressure on the resist
roller is changed.
The adjustment value must be changed according to the copy paper
quality.
quality.
1) Execute SIM 51-2.
2) Change the adjustment value in each mode.
Mode
Initial
value (ms)
Set value
(ms)
A: MANUAL
Manual paper feed
50
0
∼
100
B: TRAY
Tray paper feed
50
0
∼
100
C: LCC
LCC paper feed
50
0
∼
100
D: ADU
ADU paper feed
50
0
∼
100
E: TRAY
Tray paper feed
(Low)
(Low)
50
0
∼
100
F: LCC
LCC paper feed
(Low)
(Low)
50
0
∼
100
G: SPF
SPF paper feed
50
0
∼
100
1 step: 1ms
When the set value is too small, the copy image position for the
paper may vary.
paper may vary.
When the set value is too great, a paper jam may occur.
Direction A
Direction B
(Reference view)
Section a
Section b
Paper center line
Image center line (First image)
Paper exit direction
Paper center line
Image center line (first image)
Paper exit direction
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