Sharp AR-650 Service Handbook page 49

(c) Transfer belt speed adjustment/printer (Secondary scanning reproduction ratio)
Follow the procedure below to make a test print (PFP middle or lower cassette, A3/LD).
(1) [0] [5] + [PWR] ON → [1] → [E/S] →
(2) Measure the distance "A" the distance between the 5th line and 25th line.
(3) In order to set the distance "A" to 200 mm ± 0.5 mm, use following steps to make the adjustment:
→ [488] → [START] → Set the value → [SET] or [INT] → [1] → [E/S] →
1
*An increase in the value makes the reproduction scale (distance "A") longer (in increments
of 0.25mm/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 1 to 255.
The default adjustment value is 128.
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Print
movement
direction
ADJUSTMENT
1
(Digital keys)
A
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