Sharp AR-280 Service Manual page 74

(Copy image pattern 8)
8
Y
(Adjustment procedure)
1) Perform adjustment 1 to adjust the distortion in the X section.
Adjustment reference
When the hinge base T section dimension is changed by 1mm, the X
dimension is changed by 0.5 ~ 0.7mm.
2) If the distortion in the Y section cannot be adjusted with adjust-
ment 1, perform adjustment 2.
Adjustment reference
When the hinge section a dimension is changed by 1mm, the Y
dimension is changed by 0.2 ~ 0.4mm,
(2) Open/close sensor adjustment
1) Execute SIM 2-2 by the key operation of the copier.
With the above operation, "AUOD" (automatic document feeder
open/close sensor) is displayed on the message screen.
2) Check that the open/close sensor (AUOD) is ON when the dis-
tance between the base height reference projection (1) inside the
automatic document feeder and the table glass (2) is 20 ~ 50mm.
(2)
If the distance is shifted, adjust as follows.
3) Loosen the fixing screw (2) of the open plate (1) at the rear of the
hinge on the right side of the automatic document feeder, and
move the open plate up and down to adjust.
After completion of the adjustment, press the [CA] key to cancel
the mode.
7/13/2000
X
Copy surface
(1)
(1)
(2)
I. RADF
(1) Document lead edge stop position adjustment
·
The ADF document lead edge stop position is adjusted by using
SIM 53.
·
When shipping, the lead edge is set to (8). An adjustment may be
required depending on documents.
The adjustment range is 8mm (8 steps) in the stopper side and
7mm (7 steps) in the glass side. (1mm: 1 step) For each mode of
single, and duplex, the adjustment value can be set independently.
0 1 2 3 4
8mm
Stopper
Viewed from the operator
1) Execute SIM 53-1 on the copier.
2) Enter the stop position adjustment value in each mode.
[Explanation of abbreviation]
NORMAL (S): Single, normal paper stop position adjustment
NORMAL (D): Duplex, normal paper stop position adjustment
08: ±0.0000mm
(Initial value)
(2) Resist/timing/paper exit sensor adjustment
1) Execute SIM 53-2 on the copier
(AR-501/505/507)
6 – 24
(8)
5 6 7 9 10 11 12 13 14 15
7mm
Glass
00: –8.000mm 09: +1.000mm
01: –7.000mm 10: +2.000mm
02: –6.000mm 11: +3.000mm
03: –5.000mm 12: +4.000mm
04: –8.000mm 13: +5.000mm
05: –8.000mm 14: +6.000mm
06: –8.000mm 15: +7.000mm
07: –8.000mm