Read Sharp AR-505 (serv.man8) Service Manual online
(8) Original off-center adjustment
1) Place the reference original for the off-center adjustment on the
original table.
2) Execute SIM 50-12.
(AR-501/505)
(Other models)
3) Press the PRINT button after lighting the RPL, and a copy will be
made. If the arrow image on the copy paper is shifted from the
center line as shown below, change the set value and adjust.
center line as shown below, change the set value and adjust.
In the case of A
decrease the set value.
In the case of B
increase the set value.
Adjustment specification:
Within
±
1.7mm
(One point of the set value corresponds to the change of
about 0.1mm.)
about 0.1mm.)
[In the case of the AR-280]
4) Make a copy of A4 (8 1/2
´
11)original with the SPF, and measure
the off-center.
5) Change value C so that the off-center is within the specified
range.
[In the case of the AR-285/335]
4) Make a copy of A4 (8 1/2
´
11) original with the RADF, and
measure the off-center.
5) Change value B so that the off-center is within the specified
range.
6) Press the CA key to cancel the simulation.
D. Image density adjustment
The image density adjustment is required for the following copy qual-
ity mode by using the simulation.
ity mode by using the simulation.
There are two methods; the collective adjustment and the individual
adjustment of the copy quality mode.
adjustment of the copy quality mode.
Copy mode (AR-280/285/335)
Copy quality mode
Collective
adjustment
Individual
adjustment
Binary
value mode
value mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo mode
SIM46-11
Multi value
(Hifi) mode
(Hifi) mode
Auto mode
SIM46-3
Character mode
SIM46-5
Character/Photo mode
SIM46-6
Photo mode
SIM46-7
Copy mode (AR-250/281/286/336/405)
Copy quality mode
Collective
adjustment
Individual
adjustment
Binary
value
mode
value
mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo (error diffusion)
mode
mode
SIM46-11
Multi value
(Hifi) mode
(Hifi) mode
Photo (Dither pattern)
mode (Japan only)
mode (Japan only)
SIM46-2
SIM46-7
Copy mode (AR-501/505)
Copy quality mode
Collective
adjustment
Individual
adjustment
Binary
value mode
value mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo (error diffusion)
mode
mode
SIM46-11
(1) Test chart setting
1) Place a test chart (UKOG-0162FCZZ) on the original table.
2) Place several sheets of A3 (11
´
17) white paper (Sharp’s speci-
fied paper) on the test chart at the center reference.
illust: AR-280
A
B
Paper exit
direction
direction
Paper center
UKOG-0162FCZZ
1
10
W
2
3
4
5
6
7
8
9
AR-505
8/18/1999
6 – 15
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