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MX-5111N  ADJUSTMENTS AND SETTINGS  4 – 92

 

This adjustment must be performed in the following cases:
* When the copy magnification ratio in the copy image sub scan-

ning direction is not properly adjusted.

* When the scanner motor is replaced.
* U2 trouble has occurred.
* When the scanner control PWB is replaced.
* When the EEPROM of the scanner control PWB is replaced.
1)

Place a scale on the document table as shown in the figure
below.

2)

Enter the SIM 48-1 mode.

3)

Make a normal copy and obtain the copy magnification ratio.
Go to the copy mode, and make a copy.

4)

Check that the copy magnification ratio is within the specified
range (100 

 1.0%).

If the copy magnification ratio is within the specified range (100
 1.0%), the adjustment is completed. If the copy magnification
ratio is not within the specified range, perform the following
procedure.

5)

Change the CCD (SUB) adjustment value of Simulation 48-1.
When the adjustment value is increased, the copy magnifica-
tion ratio in the sub scanning direction is increased.
When the adjustment value is changed by 1, the copy magnifi-
cation ratio is changed by about 0.1%.

Repeat the procedures 3) - 5) until the copy magnification ratio is
within the specified range (100 

 1.0%).

 

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 of the DSPF/RSPF mode

copy image in the main scanning direction is not proper.

* When the DSPF/RSPF is disassembled.

1)

Place the duplex adjustment chart shown below on the docu-
ment tray of the DSPF/RSPF.
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.

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2.

10

20

90

100

110

10

20

90

100

110

10

20

90

100

110

(Example 1)
Copy A
(Shorter than
the original)

(Example 2)
Copy B
(Longer than
the original)

Scale
(Original)

Copy magnifi-
cation ratio

(Original dimension - Copy dimension)

Original dimension

100%

A4 size

(Both the front surface

and the back surface)

10mm

10mm

Paper pass direction

original

10

50

100

150

200

250

copy

10

50

100

150

200

250

MX-5111N  ADJUSTMENTS AND SETTINGS  4 – 93

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 

 0.8%), there is no need to perform the adjustment.

If it is not within the specified range, perform the following pro-
cedures.

5)

Enter the SIM 48-1 mode.

6)

Select an adjustment item of SPF (MAIN)/SPFB (MAIN) with
the scroll key.

7)

Enter an 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 magnification ratio is changed by 0.02%.

8)

Make a normal copy and obtain the copy magnification ratio.

Repeat the procedures of 1) - 8) until a satisfactory result is
obtained.

 

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 of the DSPF/RSPF mode

copy image in the sub scanning direction is not proper.

* When the DSPF/RSPF is disassembled.
1)

Place the duplex adjustment chart shown below on the docu-
ment tray.
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.

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 

 0.8%), there is no need to perform the adjustment.

If it is not within the specified range, perform the following pro-
cedures.

A

CCD(MAIN)

SCAN main scanning 
magnification ratio 
adjustment (CCD)

1 - 99

50

B

CCD(SUB)

SCAN sub scanning 
magnification ratio 
adjustment (CCD)

1 - 99

50

C

SPF(MAIN)

DSPF document front surface 
magnification ratio 
adjustment (Main scan)

1 - 99

50

D

SPF(SUB)

DSPF document front surface 
magnification ratio 
adjustment (Sub scan)

1 - 99

50

E

SPFB(MAIN)

DSPF document back 
surface magnification ratio 
adjustment (Main scan)

1 - 99

50

A

CCD(MAIN)

SCAN main scanning 
magnification ratio 
adjustment (CCD)

1 - 99

50

B

CCD(SUB)

SCAN sub scanning 
magnification ratio 
adjustment (CCD)

1 - 99

50

C

SPF(MAIN)

RSPF document front surface 
magnification ratio 
adjustment (Main scan)

1 - 99

50

D

SPF(SUB)

RSPF document front surface 
magnification ratio 
adjustment (Sub scan)

1 - 99

50

E

SPFB(MAIN)

RSPF document back 
surface magnification ratio 
adjustment (Main scan)

1 - 99

50

F

SPFB(SUB)

RSPF document back 
surface magnification ratio 
adjustment (Sub scan)

1 - 99

50

SPF (MAIN)

Main scanning direction image magnification ratio 
(Front surface)

SPFB (MAIN) Main scanning direction image magnification ratio 

(Back surface)

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2.

A4 size

10mm

10mm

Paper pass direction

original

copy

10

50

100

150

200

10

50

100

150

200

MX-5111N  ADJUSTMENTS AND SETTINGS  4 – 94

5)

Enter the SIM 48-1 mode.

6)

Select an adjustment item with the scroll key.

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 0.1%.

8)

Make a normal copy and obtain the copy magnification ratio.

Repeat the procedures of 1) - 8) until a satisfactory result is
obtained.

 

NOTE:
Normally if the adjustment is executed by ADJ 4 (automatic adjust-
ment), there is no need to execute this adjustment.
Only when the manual adjustment is required, execute this adjust-
ment.
In other words, this manual adjustment is executed when a satis-
factory result is not obtained from the automatic adjustment (ADJ
4).
 

 

This adjustment must be performed in the following cases:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) 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.
1)

Make a copy of the adjustment chart (made by yourself) in the
adjustment mode (document table).

2)

Check the copy image center position.
If A - B = 

 1.0mm, the adjustment is not required.

If the above condition is not satisfied, perform the following
procedures.

3)

Enter the SIM 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.

6)

Go to the copy mode, and make a copy.

Repeat the procedures of 1) - 6) until the above condition is satis-
fied.
 

 

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 DSPF/RSPF section is disassembled.
* When the DSPF/RSPF unit is replaced.

NOTE: To execute this adjustment, it is required that the ADJ 18A

Scan image off-center adjustment (Document table mode)
must have been properly adjusted.

SPF (SUB)

Sub scanning direction image magnification ratio 
(Front surface)

SPFB (SUB)

Sub scanning direction image magnification ratio 
(Back surface)

B

A = B

A

B'

A' - B' =

1.0mm

A'

(100%)

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MX-5111N  ADJUSTMENTS AND SETTINGS  4 – 95

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.

2)

Set the adjustment chart to the RSPF.

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.

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.

4)

Enter the SIM 50-12 or 50-6 mode.

A - C: When the adjustment value is increased, the image
position is shifted to the rear frame side.
1step = 0.1mm
SIM50-6

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.

original

copy

a

b

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2.

(SIM50-12)

A

OC

Document table image off-
center adjustment

1 - 99

50

B

SPF(SIDE1)

SPF front surface image off-
center adjustment

1 - 99

50

C

SPF(SIDE2)

SPF back surface image off-
center adjustment

1 - 99

50

A

SIDE1

Front surface 
document scan 
position adjustment 
(CCD)

1 - 99

50

B

SIDE2

Back surface 
document scan 
position adjustment 
(CCD)

1 - 99

50

C

Image loss 
amount 
setting 
SIDE1

LEAD_
EDGE 
(SIDE1)

Front surface lead 
edge image loss 
amount setting

0 - 99

20

D

FRONT_
REAR 
(SIDE1)

Front surface side 
image loss amount 
setting

0 - 99

20

E

TRAIL_
EDGE 
(SIDE1)

Front surface rear 
edge image loss 
amount setting

0 - 99

40

F

Image loss 
amount 
setting 
SIDE2

LEAD_
EDGE 
(SIDE2)

Back surface lead 
edge image loss 
amount setting

0 - 99

40

G

FRONT_
REAR 
(SIDE2)

Back surface side 
image loss amount 
setting

0 - 99

20

H

TRAIL_
EDGE 
(SIDE2)

Back surface rear edge 
image loss amount 
setting

0 - 99

20

I

OFFSET_SPF1

DSPF front surface 
document off-center 
adjustment

1 - 99

50

J

OFFSET_SPF2

DSPF back surface 
document off-center 
adjustment

1 - 99

50

K

SCAN_SPEED_SPF1

DSPF document front 
surface magnification 
ratio (Sub scan)

1 - 99

50

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(SIM50-6)