Read Sharp AR-285 (serv.man11) Service Manual online
(Distortion pattern and adjustment)
1) Check that which one of the copy image patterns 1
∼
8 shown
below is like the copy image distortion.
2) Follow the adjustment procedure according to the copy image
patter.
(Refer to adjustment 1, 2.)
Note
1) When the hinge ass’y R height adjustment is performed, be sure
to perform adjustment (2) (Open/close sensor adjustment) again.
Distortion adjustment procedure
(Copy image pattern 1)
(Adjustment procedure)
1) Perform adjustment 1 and adjust the distortion in the X section.
Adjustment
reference When the hinge space T 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 a section dimension is
changed by 1mm, the Y dimension is changed by 0.2
∼
0.4mm,
(Copy image pattern 2)
(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 a section dimension is
changed by 1mm, the Y dimension is changed by 0.2
∼
0.4mm.
(Copy image pattern 3)
(Adjustment procedure)
1) Perform adjustment 2 to adjust the distortion in the Y section.
Adjustment
reference When the hinge section a dimension is
changed by 1mm, the Y dimension is changed by 0.2
∼
0.4mm.
(Copy image pattern 4)
(Adjustment procedure)
1) Perform adjustment 2 to adjust the distortion in the Y section.
Adjustment
reference When the hinge section a dimension is
changed by 1mm, the Y dimension is changed by 0.2
∼
0.4mm.
(Copy image pattern 5)
(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,
Document feed direction
Copy surface
X
Y
1
X
Y
Copy surface
2
Y
Copy surface
3
Copy surface
Y
4
Document feed direction
Copy surface
Y
X
5
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