AR-161 (serv.man9). AR161 Service Manual-Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 10

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<Adjustment specification>
Mode
Specification
SIM
Set value
Set range
Main scanning
direction
magnification
ratio
At normal:
±
1.0%
SIM
48-1
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
Error in the auto correction mode
Display
Content
Major cause
Copy
quantity
display "– –"
The correction
value calculated is
over 5%.
Improper position of
reference width line of
the reference white plate
Improper installation of
CCD unit
Paper jam
lamp ON
Reference line
scanning error
Defective CCD
No reference white plate
(6) Sub scanning direction (scanning direction)
magnification ratio adjustment (SIM 48-2, SIM 48-5)
a. OC mode in copying
Note:
Before performing this adjustment, be sure to check that the
CCD unit is properly installed. 
1) Put a scale on the original table as shown below, and make a
normal (100%) copy. 
2) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures. 
3) Execute SIM 48-2.
4) After warmup, shading is performed and the current set value of
the sub scanning direction magnification ratio is displayed on the
display section in 2 digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
Mode
Specification
SIM
Set value
Set range
Sub scanning
direction
magnification
ratio
(OC mode)
Normal
±
1.0%
SIM
48-2
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
b. SPF mode in copying
Note:
Before performing this adjustment, be sure to check that the
CCD unit is properly installed.
Before performing this adjustment, the OC mode adjust-
ment in copying must be completed.
1) Put a scale on the original table as shown below, and make a
normal (100%) copy to make a test chart. 
Note: Since the printed copy is used as a test chart, put the scale
in parallel with the edge lines.
2) Set the test chart on the SPF and make a normal (100%) copy. 
3) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures. 
4) Execute SIM 48-5. 
5) After warmup, shading is performed and the current set value of
the sub scanning direction magnification ratio is displayed on the
display section in 2 digits. 
6) Enter the set value and press the start key.
The set value is stored and a copy is made. 
<Adjustment specification>
Mode
Specification
SIM
Set value
Set range
Sub scanning
direction
magnification
ratio
(SPF mode)
Normal
±
1.0%
SIM
48-5
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
(7) Off center adjustment (SIM 50-13, SIM 50-16)
a. OC mode
Note:
Before performing this adjustment, be sure to check that the
paper off center is properly adjusted. (SIM 50-10)
1) Make a test chart as shown below and set it so that its center line
is fit with the original guide center mark.
*
To make a test chart, draw a line on A3 or 11" x 17" paper at
the center in the paper transport direction.
2) Make a normal copy from the manual paper feed tray, and com-
pare the copy and the test chart.
If necessary, perform the following adjustment procedures. 
3) Execute SIM 50-13. 
4) After warmup, shading is performed and the current set value of
the off center adjustment is displayed on the display section in 2
digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
AR-161
AR-160/161 FM/E [7] ADJUSTMENT 11/27/1998
7 – 7
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