Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man13) Service Manual ▷ View online
MX-4101N ADJUSTMENTS 5 – 41
15-B
Scan image magnification ratio adjustment
(Sub scanning direction) (RSPF mode)
(Sub scanning direction) (RSPF mode)
15-D
Scan image magnification ratio adjustment
(Sub scanning direction) (DSPF mode)
(Sub scanning direction) (DSPF mode)
This adjustment must be performed in the following cases:
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When U2 trouble occurs.
* When the copy magnification ratio is not matched.
* When the RSPF/DSPF is disassembled.
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When U2 trouble occurs.
* When the copy magnification ratio is not matched.
* When the RSPF/DSPF is disassembled.
a. Adjustment procedures
1)
Place the duplex adjustment chart shown below on the docu-
ment tray of the RSPF/DSPF.
The adjustment chart is prepared by the following procedures.
Use A4 (11" x 8.5") paper, and put marks on both sides and
both surfaces of the paper at 10mm from each edge.
ment tray of the RSPF/DSPF.
The adjustment chart is prepared by the following procedures.
Use A4 (11" x 8.5") paper, and put marks on both sides and
both surfaces of the paper at 10mm from each edge.
2)
Make a duplex copy at the normal ratio on A4 paper.
3)
Measure the images on the copy paper and the original
images.
images.
4)
Obtain the image magnification ratio according to the following
formula:
Image magnification ratio = Original size / Original size x 100
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100
formula:
Image magnification ratio = Original size / Original size x 100
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100
± 0.8%), there is no need to perform the adjustment.
If it is not within the specified range, perform the following pro-
cedures.
cedures.
5)
Enter the SIM48-1 or 50-6 mode.
SIM48-1
(DSPF)
(DSPF)
(RSPF)
* Items A, C, E: When the set value is increased by 1, the
magnification ratio is increased by 0.02%.
* Items B, D, F: When the set value is increased by 1, the
magnification ratio is increased by 0.1%.
* It affects scanning (PC scanning, etc.) as well as copying.
A4 size
10mm
10mm
Paper pass direction
original
copy
10
50
100
150
200
10
50
100
150
200
Item
Display
Content
Setting
range
Default
value
A
CCD (MAIN)
SCAN main scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
B
CCD (SUB)
SCAN sub scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
C
SPF (MAIN)
DSPF document front
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
D
SPF (SUB)
DSPF document front
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
E
SPFB (MAIN)
DSPF document back
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
Item
Display
Content
Setting
range
Default
value
A
CCD (MAIN)
SCAN main scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
B
CCD (SUB)
SCAN sub scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
C
SPF (MAIN)
RSPF document front
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
D
SPF (SUB)
RSPF document front
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
E
SPFB (MAIN)
RSPF document back
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
F
SPFB (SUB)
RSPF document back
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
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2.
(SIM50-6)
MX-4101N ADJUSTMENTS 5 – 42
SIM50-6
(DSPF)
(DSPF)
(RSPF)
* Item A, B: When the adjustment value is increased, the scan
timing is delayed.
* * Item C - H: When the adjustment value is increased, the
image loss is increased.
* * Item A - H: 1 step = 0.1mm change
* The SPF rear edge image loss is provided for countermea-
* The SPF rear edge image loss is provided for countermea-
sures against shades.
6)
Select an adjustment item with the scroll key.
(SIM48-1)
(SIM50-6)
7)
Enter an image magnification ratio adjustment value with 10-
key, and press [OK] key.
When the adjustment value is increased, the image magnifica-
tion ratio is increased.
When the adjustment value is changed by 1, the image magni-
fication ratio is changed by 0.01%.
key, and press [OK] key.
When the adjustment value is increased, the image magnifica-
tion ratio is increased.
When the adjustment value is changed by 1, the image magni-
fication ratio is changed by 0.01%.
Repeat the procedures of 1) - 7) until a satisfactory result is
obtained.
obtained.
NOTE: When [CLOSE] key is pressed in this simulation mode, the
machine goes into the normal operation mode. Under this
state, copy check can be normally performed. When the
system key is pressed, the machine returns to the simula-
tion mode.
state, copy check can be normally performed. When the
system key is pressed, the machine returns to the simula-
tion mode.
Item
Display
Content
Setting
range
Default
value
A
SIDE1
Front surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
B
SIDE2
Back surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
C
Image
loss
amount
setting
SIDE1
loss
amount
setting
SIDE1
LEAD_EDGE
(SIDE1)
(SIDE1)
Front surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
20
D
FRONT_REAR
(SIDE1)
(SIDE1)
Front surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
E
TRAIL_EDGE
(SIDE1)
(SIDE1)
Front surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
30
F
Image
loss
amount
setting
SIDE2
loss
amount
setting
SIDE2
LEAD_EDGE
(SIDE2)
(SIDE2)
Back surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
30
G
FRONT_REAR
(SIDE2)
(SIDE2)
Back surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
H
TRAIL_EDGE
(SIDE2)
(SIDE2)
Back surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
20
I
OFSET_SPF1
DSPF front
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
J
OFSET_SPF2
DSPF back
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
K
SCAN_SPEED_SPF1
DRSPF
document front
surface
magnification
ratio adjustment
(Sub scan)
document front
surface
magnification
ratio adjustment
(Sub scan)
1 - 99
50
Item
Display
Content
Setting
range
Default
value
A
SIDE1
Front surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
B
SIDE2
Back surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
C
Image
loss
amount
setting
SIDE1
loss
amount
setting
SIDE1
LEAD_EDGE
(SIDE1)
(SIDE1)
Front surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
20
D
FRONT_REAR
(SIDE1)
(SIDE1)
Front surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
E
TRAIL_EDGE
(SIDE1)
(SIDE1)
Front surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
30
F
Image
loss
amount
setting
SIDE2
loss
amount
setting
SIDE2
LEAD_EDGE
(SIDE2)
(SIDE2)
Back surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
20
G
FRONT_REAR
(SIDE2)
(SIDE2)
Back surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
H
TRAIL_EDGE
(SIDE2)
(SIDE2)
Back surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
30
I
OFSET_SPF1
RSPF front
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
J
OFSET_SPF2
RSPF back
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
K
SCAN_SPEED_SPF1
RSPF document
front surface
magnification
ratio adjustment
(Sub scan)
front surface
magnification
ratio adjustment
(Sub scan)
1 - 99
50
L SCAN_SPEED_SPF2
RSPF
document
back surface
magnification
ratio adjustment
(Sub scan)
magnification
ratio adjustment
(Sub scan)
1 - 99
50
SPF (SUB)
Sub scanning direction image magnification ratio (Front
surface)
surface)
SPFB (SUB) Sub scanning direction image magnification ratio (Back
surface)
SCAN SPEED SPF1 Sub scanning direction image magnification
ratio (Front surface)
SCAN SPEED SPF2 Sub scanning direction image magnification
ratio (Back surface)
Item
Display
Content
Setting
range
Default
value
MX-4101N ADJUSTMENTS 5 – 43
ADJ 16
Scan image off-center
adjustment
adjustment
This adjustment is needed in the following situations:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the RSPF section is disassembled.
* When the RSPF unit is installed.
* When the RSPF unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the RSPF section is disassembled.
* When the RSPF unit is installed.
* When the RSPF unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
16-A
Scan image off-center adjustment
(Document table mode)
(Document table mode)
1)
Make a copy of the adjustment chart (made by your self) in the
adjustment mode (document table or RSPF).
adjustment mode (document table or RSPF).
2)
Check the copy image center position.
If A' - B' =
If A' - B' =
±1.0mm, the adjustment is not required.
If the above condition is not satisfied, perform the following
procedures.
procedures.
3)
Enter the simulation 50-12 mode.
4)
Select the adjustment mode OC with the scroll key.
5)
Enter the adjustment value with 10-key, and press [OK] key.
The entered value is set.
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
The entered value is set.
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
6)
Press [CLOSE] key and shift from the simulation mode to the
copy mode and make a copy.
Repeat the procedures of 2) - 6) until the above condition is
satisfied.
copy mode and make a copy.
Repeat the procedures of 2) - 6) until the above condition is
satisfied.
16-B
Scan image off-center adjustment
(RSPF mode)
(RSPF mode)
16-C
Scan image off-center adjustment
(DSPF mode)
(DSPF mode)
This adjustment must be performed in the following cases:
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) section is replaced.
* When U2 trouble occurs.
* When the PF section is disassembled.
* When the RSPF/DSPF unit is replaced.
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) section is replaced.
* When U2 trouble occurs.
* When the PF section is disassembled.
* When the RSPF/DSPF unit is replaced.
NOTE: To execute this adjustment, it is required that the document
table mode off-center adjustment (ADJ 16A) must have
been properly adjusted.
been properly adjusted.
a. Adjustment procedures
1)
Prepare the adjustment chart.
Draw a line at the center of the front surface and the back sur-
face of A4 (11" x 8.5") paper in parallel with the paper transport
direction.
Draw a line at the center of the front surface and the back sur-
face of A4 (11" x 8.5") paper in parallel with the paper transport
direction.
B
A = B
A
B'
A' - B' =
1.0mm
A'
(100%)
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2.
Paper transport direction
Front surface
Back surface
Draw a line at the center of the
front surface and the back surface
of paper in parallel with the paper
transport direction.
front surface and the back surface
of paper in parallel with the paper
transport direction.
MX-4101N ADJUSTMENTS 5 – 44
2)
Set the adjustment chart to the RSPF/DSPF.
3)
Make a duplex copy in the normal magnification ratio from the
manual paper feed tray, and check the image position on the
front surface and the back surface of the copy paper.
manual paper feed tray, and check the image position on the
front surface and the back surface of the copy paper.
If the difference is within the range of 0
± 2.7mmm there is no
need to perform the adjustment.
If the adjustment is required, perform the following procedures.
If the adjustment is required, perform the following procedures.
4)
Enter the SIM50-12 and 50-6 mode.
SIM50-12
A - C: When the adjustment value is increased, the image
position is shifted to the rear frame side.
1step = 0.1mm
position is shifted to the rear frame side.
1step = 0.1mm
SIM50-6
(DSPF)
(DSPF)
(RSPF)
Item
Display
Content
Setting
range
Default
value
A
OC
Document table image off-
center adjustment
center adjustment
1 - 99
50
B
SPF(SIDE1)
SPF front surface image off-
center adjustment
center adjustment
1 - 99
50
C
SPF(SIDE2)
SPF back surface image off-
center adjustment
center adjustment
1 - 99
50
original
copy
a
b
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2.
(SIM50-6)
Item
Display
Content
Setting
range
Default
value
A
SIDE1
Front surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
B
SIDE2
Back surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
C
Image
loss
amount
setting
SIDE1
loss
amount
setting
SIDE1
LEAD_EDGE
(SIDE1)
(SIDE1)
Front surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
20
D
FRONT_REAR
(SIDE1)
(SIDE1)
Front surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
E
TRAIL_EDGE
(SIDE1)
(SIDE1)
Front surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
30
F
Image
loss
amount
setting
SIDE2
loss
amount
setting
SIDE2
LEAD_EDGE
(SIDE2)
(SIDE2)
Back surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
30
G
FRONT_REAR
(SIDE2)
(SIDE2)
Back surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
H
TRAIL_EDGE
(SIDE2)
(SIDE2)
Back surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
20
I
OFSET_SPF1
DSPF front
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
J
OFSET_SPF2
DSPF back
surface
document off-
center
adjustment
surface
document off-
center
adjustment
1 - 99
50
K
SCAN_SPEED_SPF1
DSPF document
front surface
magnification
ratio adjustment
(Sub scan)
front surface
magnification
ratio adjustment
(Sub scan)
1 - 99
50
Item
Display
Content
Setting
range
Default
value
A
SIDE1
Front surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
B
SIDE2
Back surface
document scan
position
adjustment
(CCD)
document scan
position
adjustment
(CCD)
1 - 99
50
C
Image
loss
amount
setting
SIDE1
loss
amount
setting
SIDE1
LEAD_EDGE
(SIDE1)
(SIDE1)
Front surface
lead edge image
loss amount
setting
lead edge image
loss amount
setting
0 - 99
20
D
FRONT_REAR
(SIDE1)
(SIDE1)
Front surface
side image loss
amount setting
side image loss
amount setting
0 - 99
20
E
TRAIL_EDGE
(SIDE1)
(SIDE1)
Front surface
rear edge image
loss amount
setting
rear edge image
loss amount
setting
0 - 99
30
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