AR-RP3. AR-RP3 (Reversing single pass feeder) Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 8

5) The current correction value is displayed on the display section in

two digits.

6) Enter the set value, and press the START key.

The entered correction value is stored and a copy is made.

7) Change the duplex document mode to the simplex document

mode.
The MANUAL lamp lights up, and the current correction value of
the back surface sub scanning direction magnification ratio is dis-
played on the display section in two digits.

8) Enter the set value, and press the SATART key.

The entered correction value is stored and a copy is made.

<Adjustment specifications>

Mode

Spec

SIM

Set value

Set range

Magnification ratio adjustment

Normal: 

±

 1.0%

SIM 48-1

4: SPF surface magnification ratio adjustment
5: SPF back magnification ratio adjustment    

Add 1: 

0.1% increase

Reduce 1:  0.1% decrease

1 ~ 99

Note : When performing this adjustment, check that the paper off-

center is properly adjusted.

1) Set the center position adjustment test chart (made by yourself) on

the RSPF.

<Adjustment specifications>

Draw a line in the center of paper. (In the scanning direction)

2) Make a normal copy from the manual feed tray, and compare the

copy and the test chart.
If an adjustment is required, perform the following procedures.

3) Execute SIM 50-12.

4) The current off-center adjustment value is displayed on the display

section in two digits.

5) Enter the set value and press the START key.

The entered correction value is started and a copy is made.

<Adjustment specifications>

Mode

Specification

SIM

Set value

Set range

Document off-center (RSPF
mode)

Simplex: Center 

±

 3.0mm

Duplex: Center 

±

 3.5mm

SIM 50-12

2: SPF surface
3: SPF back

Add 1: 

0.1mm shifted to R side.

Reduce 1:  0.1mm shifted to L side.

1 ~ 99

1) Set a scale on the OC table as shown below.

2) Make a copy, and use the copied paper as the document and

make a copy from RSPF again.

3) Check the copied paper. If an adjustment is required, perform the

following procedures.

4) Execute SIM 50-6.

5) Set the SPF lead edge position set value (Exposure display

<MANUAL> ON) so that the image similar to the adjusted image at
the OC image lead edge position described previously is printed.

<Adjustment specifications>

Adjustment mode

SIM

Set value

Specification

Set range

RSPF image lead edge
position

                      SIM 50-6

1: Surface document scan start position adjustment value
2: Back document scan start position adjustment value
3: Rear edge void adjustment value (SPF)
4: Surface image loss set value
5: Back image loss set value
6: Surface rear edge image loss set value
7: Back rear edge image loss set value
8: RRC cancel adjustment value (Back of the machine)
9: memory reverse position adjustment value
10: Duplex left edge void adjustment value

1step: 0.127mm shift

Lead edge void: 1 ~ 4mm
Image loss: 3mm or less

1 ~ 99

Note: Since the printed paper is used as the test chart, 
          place the scale in parallel to both sides.