Read Sharp AR-235 (serv.man9) Service Manual online
AR-235/275 ADJUSTMENTS - 3
99 – H/0.127 (mm) = Image print start position set value <H:
Print start position measurement value (mm)>
Print start position measurement value (mm)>
∗
Fit the print edge with the paper edge, and perform the lead
edge adjustment.
edge adjustment.
Example:99 – 5/0.127 = 99 – 39.4 = about 59
FIf the set value is not obtained from the above formula, per-
FIf the set value is not obtained from the above formula, per-
form the fine adjustment.
3) Execute SIM 50-1-2 to adjust the main cassette lead edge void.
• 1 step of the set value corresponds to about 0.127mm shift.
• Calculate the set value from the formula below.
B/0.127 (mm) = Lead edge void adjustment value <B: Lead edge
void (mm)>
void (mm)>
Example: When setting the lead edge void to 2.5mm:
2.5 /0.127 = about 20
<Adjustment specification>
(3) SPF image lead edge position adjustment
1) Set a scale on the OC table as shown below.
Since the printed copy is used as a test chart, put the scale in
paralleled with the edge lines.
2) Make a copy, then use the copy output as an original to make an
SPF copy again.
3) Check the copy output. If necessary, perform the following adjust-
ment procedures.
4) Execute SIM 50-6.
5) Set the SPF lead edge position set value so that the same image is
obtained as that obtained in the previous OC image lead edge
position adjustment.
position adjustment.
<Adjustment specification>
(4) Rear edge void adjustment
1) Set a scale as shown in the figure below.
2) Set the document size to A4 (8.5" x 11"), and make a copy at
100%.
3) If an adjustment is required, follow the procedures below.
4) Execute SIM 50-1 and set the density mode to DEN-B. The cur-
rently set adjustment value is displayed.
5) Enter the set value and press the start key.
The correction value is stored and a copy is made.
<Adjustment specification>
(5) Paper off center adjustment
1) Perform this adjustment after execution of SIM 48-3.
2) Set a test chart (UKOG-0089SCZZ) on the document table.
3) Select a paper feed port and make a copy.
Compare the copy and the test chart. If necessary, perform the follow-
ing adjustment procedure.
ing adjustment procedure.
4) Execute SIM 50-10.
Select the mode with the arrow keys, enter the adjustment value
with the 10-key, and press the [OK] key.
with the 10-key, and press the [OK] key.
Pressing the [START] key makes a print.
Pressing the [RETURN] key returns to the mode selection.
Adjustment
mode
SIM
Set value
Spec value
Setting
range
Main cassette
lead edge void
lead edge void
50-1-
2
B/0.127
Lead edge void:
1 to 4mm
Image loss: 3mm
or less
1 to 4mm
Image loss: 3mm
or less
1 – 99
Print start
position
position
50-5
99 – H/0.127
5
10
0mm
0mm
5
10
2.5mm
2.5mm
Adjustment
mode
SIM
Set value
Spec value
Setting
range
SPF image
lead edge
position
lead edge
position
50-6
1 step:
0.127mm
shift
0.127mm
shift
Lead edge void:
1 – 4mm
Image loss: 3mm or less
1 – 4mm
Image loss: 3mm or less
1 – 99
Adjustment
mode
SIM
Set value
Spec
value
Setting
range
Rear edge
void
void
50-1-6
1 step: 0.127mm
shift
shift
4mm or
less
less
1 – 99
(Initial screen)
(Input screen)
(Executing screen)
A4 (8.5" x 11")
Paper rear edge
Void amount (Standard value: 4mm or less)
Scale image
Paper rear edge
Sim50-10 PRT.CENTER
1:BYPASS
50
2:TRAY1 50
3:TRAY2 50
1/2
50
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