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MX-M356NV  ADJUSTMENTS AND SETTINGS  5 – 13

 

This adjustment must be performed in the following cases:
* The CCD unit has been removed from the machine.
* The CCD unit has been replaced.
* When the copy image focus is not properly adjusted.
* When the copy magnification ratio in the copy image main scan-

ning direction is not properly adjusted.

* U2 trouble has occurred.
1) Enter the SIM 48-1 mode.

2) Set the adjustment item CCD (MAIN) to 50 (default value).

Select  the  adjustment  item  with  the  scroll  key,  and  enter  the
adjustment value with 10-key and press [OK] key.

3) Place a scale on the original table as illustrated below.

4)

Make a normal copy on A4 paper.
Go to the copy mode, and make a copy.

5)

Compare the copied image of the scale and the actual scale
length in terms of length.

6)

Obtain the copy magnification ratio correction ratio in the main
scanning direction from the following formula.
Main  scanning  direction  copy  magnification  ratio  correction
ratio = (Original size - Copy image size) / Original size x 100%
(Example) 
Compare  the  scale  of  10mm  with  the  scale  of  10mm  on  the
copy image.
Main  scanning  direction  copy  magnification  ratio  correction
ratio = (100 - 99) / 100 x 100 = 1

If  the  copy  magnification  ratio  is  not  satisfactory,  perform  the
following procedures.

7)

Remove the document table glass.

8)

Remove the dark box cover.

9)

To prevent against shift of the CCD unit optical axis, mark the
CCD unit base as shown below.

NOTE: MEMO: This  procedure  must  be  executed  also  when  the

CCD unit is replaced.

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20

90

100

110

10

20

90

100

110

1.0mm

100mm scale
(Orignal)

Copy image 
(1mm (1%) 
shorter than 
the original)

MX-M356NV  ADJUSTMENTS AND SETTINGS  5 – 14

10) Loosen the CCD unit fixing screws.

CAUTION: Never loosen the screws marked with X.

If any one of these screws is loosened, the position and
the  angle  of  the  CCD  unit  base  may  be  changed  to
cause a problem, which cannot be adjusted in the mar-
ket.  In  that  case,  the  whole  scanner  unit  must  be
replaced.

11) Slide the CCD unit in the arrow direction (CCD sub scanning

direction) to change the installing position.
When the copy image is longer than the original scale, shift the
CCD unit  in  the  direction B.  When the copy image  is  shorter
than the original scale, shift the CCD unit in the direction A.
One scale of mark-off line corresponds to 0.2%.
At  that  time,  fix  the  CCD  unit  so  that  it  is  in  parallel  with  the
scale on the front and the rear side of the CCD unit base.
* Fix the CCD unit so that it is in parallel with the line marked

in procedure 9).

12) Make a copy and check the copy magnification ratio again.

If the copy magnification ratio is not in the range of 100 

repeat the procedures of 9) - 11) until the condition is satisfied.

CAUTION: By changing the CCD unit fixing position with the simu-

lation 48-1 adjustment value at 50, the copy magnifica-
tion  ratio  is  adjusted  within  the  specified  range  (100 

1.0%) and the specified resolution is obtained based on
the optical system structure.

 

This adjustment must be performed in the following cases:
* When the registration roller section is disassembled.
* When the LSU is replaced or removed.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.

NOTE: This  adjustment  is  performed  by  the  user  to  increase  the

lead  edge  void  area  to  greater  than  the  standard  value
(3mm) in the printer mode.

1)

Enter the SIM 50-5 mode.

2)

Select  the  set item  L  with  the  scroll key,  and  enter the value
corresponding to the paper feed tray with A4 (11" x 8.5") paper
in it.

A

DEN-C

Printer lead edge image 
position adjustment

1 - 99

30

B

DEN-B

Rear edge void area 
adjustment

1 - 99

30

C

FRONT/REAR

FRONT/REAR void area 
adjustment

1 - 99

20

D

DENB-MFT

Manual feed rear edge void 
area adjustment correction 
value

1 - 99

57

E

DENB-CS1

Tray 1 rear edge void area 
adjustment correction value

1 - 99

50

F

DENB-CS2

Tray 2 rear edge void area 
adjustment correction value

1 - 99

57

G

DENB-CS3

Tray 3 rear edge void area 
adjustment correction value

1 - 99

57

H

DENB-CS4

Tray 4 rear edge void area 
adjustment correction value

1 - 99

57

I

DENB-ADU

ADU rear edge void area 
adjustment correction value

1 - 99

60

EXECUTE 

End of print

EXECUTE 

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MX-M356NV  ADJUSTMENTS AND SETTINGS  5 – 15

3) Press [EXECUTE] key.

The adjustment pattern is printed.

4) Measure the distance from the paper lead edge the adjustment

pattern to the image lead edge, and check to confirm that it is
in the standard adjustment value range.
Standard adjustment value: 4.0mm or less

If the above requirement is not met, do the following steps.

5) Select  the  adjustment  target  of  the  paper  feed  mode  adjust-

ment item DENC with the scroll key.

6) Change the adjustment value.

Enter  the  adjustment  value  and  press  the  [OK]  key  or  the
[EXECUTE] key.
When  [EXECUTE]  key  is  pressed,  the  adjustment  pattern  is
printed.
When the adjustment value is increased, the distance from the
paper  lead  edge  to  the  image  lead  edge  is  increased.  When
the adjustment value is decreased, the distance is decreased.
When the set value is changed by 1, the distance is changed
by about 0.1mm.

Repeat the procedures 4) - 6) until the condition of 4) is satisfied.

 

Make a copy of the gray test chart (UKOG-0162FCZZ) and a copy
of  the  servicing  color  test  chart  (UKOG-0326FCZZ/UKOG-
0326FC11), and check that they are proper.
Note for checking the monochrome copy mode density
To check the density, use the gray test chart (UKOG-0162FCZZ).
Set the copy density level to "Manual 3" in the Text/Printed Photo
mode (Manual).
In addition, all the color balance adjustments in the user adjustment
mode must be set to the default (center).
Check with the gray test chart (UKOG-0162FCZZ)
In the copy density check with the gray test chart, check to insure
the following conditions.

CAUTION: For the color (gray) balance, use the servicing color test

chart (UKOG-0326FCZZ/UKOG-0326FC11) to check.

J

DENB-HV

Heavy paper correction 
value

1 - 99

50

K

MULTI COUNT

Number of print

1 - 999

1

L

PAPER

MFT

Tray 
selection

Manual 
paper feed

1 - 5

1

2 (CS1)

CS1

Tray 1

2

CS2

Tray 2

3

CS3

Tray 3

4

CS4

Tray 4

5

M

DUPLEX

YES

Duplex print 
selection

Yes

0 - 1

0

1 (NO)

NO

No

1

4.0mm or less

1

2

3

4

5

6

7

8

9

10

W

SHARP   GRAY CHART

SHARP gray chart

Patch 1 is not copied.

Patch 2 is
slightly copied.

Patch 3 is copied.

(Black-and-white copy)

MX-M356NV  ADJUSTMENTS AND SETTINGS  5 – 16

Monochrome copy check items (Check to confirm the following:)
1) There are 12 void areas.
2) The resolution of 4.0 (5 points) can be seen.
3) The density difference between the F and the R sides is not so great.
4) There are no white and black streaks.
5) The background density is not so light.
6) The black low-density gradation is copied slightly.

Void

Resolution

Void

Low-density gradation

Resolution

Density difference between the F and the R sides.
No white and black streaks

Background density

Resolution

Resolution

Void

Void

Void

Void

Resolution