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MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 76

 

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 RSPF mode copy

image in the main scanning direction is not proper.

* When the RSPF is disassembled.

1)

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

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 RSPF mode copy

image in the sub scanning direction is not proper.

* When the RSPF is disassembled.

1)

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

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

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2.

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)

A4 size

10mm

10mm

Paper pass direction

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 77

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.

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.

 

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.

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 (SUB)

Sub scanning direction image magnification ratio 
(Front surface)

SPFB (SUB)

Sub scanning direction image magnification ratio 
(Back surface)

original

copy

10

50

100

150

200

10

50

100

150

200

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2.

B

A = B

A

B'

A' - B' =

1.0mm

A'

(100%)

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 78

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 RSPF section is disassembled.

* When the RSPF unit is replaced.

To execute this adjustment, it is required that the ADJ 17A Scan
image off-center adjustment (Document table mode) must have
been properly adjusted.

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

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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.

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

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2.

(SIM50-6)

MX-3114N  ADJUSTMENTS AND SETTINGS  5 – 79

* 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 setting is provided for

countermeasures against the case when shades are
produced.

5)

Select an adjustment mode with the scroll key.

6)

Enter an adjustment value with 10-key, and press [OK] key.

(Change for change in the adjustment value: 0.1mm/step)

(When the adjustment value is increased, the print image is
shifted to the rear.)

Repeat the procedures of 2) - 6) until a satisfactory result is
obtained.

 

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 the LSU is replaced or removed.

* When the registration roller section is disassembled.

* U2 trouble has occurred.

* The PCU PWB has been replaced.

* The EEPROM of the PCU PWB has been replaced.

* The scanner control PWB has been replaced.

* The EEPROM on the scanner control PWB has been replaced.

Before executing this adjustment, be sure to confirm that the ADJ
4/ADJ 5 Print engine image skew, image position, image magnifica-
tion ratio, void area adjustments has been completed normally.

1)

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

Place a scale so that it is in parallel with the scanning direction
and that its lead edge is in contact with the document guide
plate.

Place white paper on the document table so that the scale lead
edge can be seen.

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

20

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

40

I

OFFSET_SPF1

RSPF front surface 
document off-center 
adjustment

1 - 99

50

J

OFFSET_SPF2

RSPF back surface 
document off-center 
adjustment

1 - 99

50

K

SCAN_SPEED_SPF1

RSPF document 
front surface 
magnification ratio 
adjustment (Sub 
scan)

1 - 99

50

L

SCAN_SPEED_SPF2

RSPF document 
back surface 
magnification ratio 
adjustment (Sub 
scan)

1 - 99

50

SPF(SIDE1)

Front surface mode

SPF(SIDE2)

Back surface mode

OFFSET SPF1

Front surface mode

OFFSET SPF2

Back surface mode