Read Sharp AR-285 (serv.man11) Service Manual online
B. Laser scanner section
(1) Horizontal image distortion adjustment
1) Execute SIM 64-1, and print the pattern of SQUARE from the
manual feed tray.
(A: 22 E: 1)
Set items
A:
Self print pattern
B:
Density level
C:
Setting of the number of self print sheets
D:
Density mode
1 Auto
3 Text/Photo
2 Text
4 Photo
E:
Cassette selection
1 Manual feed
5 Desk middle cassette
2 Upper cassette
6 Desk lower cassette
3 Lower cassette
7 LCC
4 Desk upper cassette
F:
Duplex print selection
1 Simplex
2 Duplex
2) Obtain value a of the printed sheet.
3) Turn the adjustment handle to adjust according to the value a.
Adjustment handle:
1 scale = 0.5mm (dimension a)
θ
<90 degress:
Right direction
θ
>90 degrees:
Left direction
Adjustment specification:
a = 0 mm,
θ
= 90 degrees
(2) Print off-center adjustment
1) Execute SIM 64-1. print one sheet from each paper feed port.
Measure the void amount at the both sides.
Select the self print pattern which allows easy measurement of
the void amount.
the void amount.
2) Execute SIM 50-10.
a
θ
Paper exit direction
7 – 6
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