AR-205 (serv.man9). AR205 Service Manual-Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 10

Note: A judgement must be made with 200mm width, and must not

be made with 100mm width.

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

*

When SIM 48-01 (AE) is executed, the main scanning direction
magnification ratio is automatically set. Therefore, the main scan-
ning direction magnification ratio adjustment previously described
in 5) must be made again.

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.

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

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.

The auto density lamp lights up and the current front surface sub
scanning direction magnification ratio correction value is displayed
in two digits on the display section.

6) Enter the set value and press the start key.

The set value is stored and a copy is made. 

7) Change the mode from the duplex original mode to the simplex

original mode.
"MANUAL" lamp lights up and the current back surface sub scan-
ning direction magnification ratio is displayed in two digits on the
display section.

8) Enter the set value and press the start key.

The set value is stored and a copy is made. 

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

Note:

•

The operation of SIM 50-13 is the same as that of SIM
48-01 (Photo LED ON)

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.

Mode

Specification

SIM

Set value

Set range

Original
off center
mode
(OC mode)

Single:
Center 

±

 2.0mm

SIM

50-13

Add 1:
0.1mm shift to
R side
Reduce 1:
0.1mm shift to
L side

1 ~ 99

Duplex:
Center 

±

2.5mm

AR-205

AR-205 [6] ADJUSTMENT 05/24/1999

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