MX-2300N, MX-2700N, MX-2300G, MX-2700G, MX-2300FG, MX-2700FG (serv.man11). Service Manual MX-RPX1 - Sharp Copying Equipment Service Manual (repair manual). Page 23

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MX-RPX1  ADJUSTMENTS  8 – 2
3. RSPF copy image position, void area 
image adjustment
1)
Place a scale on the OC table as shown in the figure below.
2)
Make a copy. Use the output copy as the original document,
and make a copy of it from the RSPF.
3)
Check the output result. If an adjustment is required, perform
the following procedures.
4)
Execute SIM50-6.
5)
Set the RSPF lead edge position set value so that an image
similar to the image adjusted in the previous OC image lead
edge position is outputted.
<<Set range and default value of each set value>>
A, B: The greater the value is, the slower the scanning timing is.
C – H: The greater the adjustment value is, the greater the image 
loss is.
A – H: 1 step = 0.1mm
The SPF rear edge image loss is provided against the shade. The
default value is 0.
4. RSPF scan position adjustment
1)
Enter SIM53-08 mode, and press [OK] button.
<<Description of adjustment display>>
• When the set value is increased by 1, the distance from the
home position to the RSPF scan position is increased.
• When the set value is changed by 1, the position is shifted
by 0.1mm.
* Since the SPF scan position distance are changed, RRCA is
not changed by the adjustment value.
[Note]
• After completion of the RSPF scan position adjustment, exe-
cute the RSPF lead edge adjustment (for both sides).
2)
Check to confirm that the lead edge is not shifted. (Both sur-
faces) (If the original lead edge adjustment is proper, the scan
position after change automatically follows.)
Item
Display item
Descriptions
Set 
range
Default 
value
A
SIDE1
Front surface 
document scan 
start position 
adjustment (CCD)
1 – 99
50
B
SIDE2
Back surface 
document scan 
start position 
adjustment (CCD)
1 – 99
50
C
Image 
loss 
quantity 
setting, 
SIDE1
LEAD_EDGE 
(SIDE1)
Front surface lead 
edge image loss 
quantity setting
0 – 99
30
D
FRONT_REAR 
(SIDE1)
Front surface side 
image loss 
quantity setting
0 – 99
20
E
TRAIL_EDGE 
(SIDE1)
Front surface rear 
edge image loss 
quantity setting
0 – 20
0
F
Image 
loss 
quantity 
setting, 
SIDE2
LEAD_EDGE 
(SIDE2)
Back surface lead 
edge image loss 
quantity setting
0 – 99
30
G
FRONT_REAR 
(SIDE2)
Back surface side 
image loss 
quantity setting
0 – 99
20
H
TRAIL_EDGE 
(SIDE2)
Back surface rear 
edge image loss 
quantity setting
0 – 20
0
Note: Since the copied scale is used as a test chart,
place the scale in parallel to the sides.
0
A:
A
㧦 26
B
㧦 50
C
㧦 15
D
㧦 20
㧧 SIDE1
㧧 SIDE2
㧧 LEAD EDGE
㧧 FRONT_REAR
SIMULATION
 NO.50-06
LEAD EDGE ADJUSTMENT VALUE(RSPF)
26
㨇 1㨪 99 㨉
TEST
CLOSE
OK
Item
Display item
Description
Set 
range
Default 
value
A
ADJUST VALUE
RSPF scan position 
adjustment
1 – 99
50
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