Sharp AR-280 Service Manual page 58

Adjustment handle:
q<90 degress:
q>90 degrees:
Adjustment specification:
(2) Print off-center adjustment
1) Execute SIM 64-1. print one sheet from each paper feed port.
Measure the void amount both sides.
When making duplex copy with OC, press the [CLOSE] key to
enter the copy menu and read two pages of documents.
Then press the [READ CORRECT] key.
* Select the self print pattern which allows easy measurement of
the void amount.
2) Execute SIM 50-10.
3) Change each value to adjust so that the void amounts of both
sides are even.
a > b: Increase the value.
a < b: Decrease the value. (See the figure below.)
a
b
4) Press the CA key to terminate the simulation.
7/13/2000
1 scale = 0.5mm (dimension a)
Right direction
Left direction
a = 0 mm, q = 90 degrees
a
b
(3) Laser power setting
* Normally the laser power is automatically corrected by process
control. Use the image density adjustment described later unless
there is a special request from the user.
(AR-230/280/285/335)
All must be set to "16".
(AR-250/281/286/336)
All must be set to "7".
(AR-287/337)
All must be set to "8".
(AR-405)
Set all to "5" except for PH256.
(AR-407)
All must be set to "6".
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