Sharp AR-650, Service Handbook

Page: 47 / 200

ADJUSTMENT 1 - 40
1.5.2 Adjusting the printer section
(a) Polygonal motor 600 dpi (Primary scanning reproduction ratio of the printer unit)
Follow the procedure below to make a test print (Paper source: LCF, Paper size: A4/LT).
(1) [0] [5] + [PWR] ON
→
[1]
→
[E/S]
→
1
(Digital keys)
(2) Measure the distance “A” the distance between the 1st line and 21st line.
(3) In order to set the distance “A” to 200 mm ± 0.5 mm, adjust using the following steps:
1
→
[401]
→
[START]
→
Set the value
→
[INT] key or LCD [SET] icon (Carry out the same in
the following.)
→
[1]
→
[E/S]
→
1
* An increase in the value makes the reproduction scale (distance “A”) longer (0.05mm/STEP).
Notes: 1. Before making a test print, make sure that [100% A] is appeared on the top of the
message display after the [SET] icon or the [INT] key is pressed, and then make a test
print.
2. The effective adjustment value is within the range 86 to 168. The default adjustment
value is 128.
Print movement
direction
A
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