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MX-5141N  ADJUSTMENTS AND SETTINGS  5 – 82

1)

Enter the SIM 67-25 mode.

2)

Press [EXECUTE] key. (A4/11" x 8.5" or A3/11" x 17" paper is
automatically selected.)

The color balance adjustment pattern is printed.

3)

Check that the following specification is satisfied or the color
balance is satisfactory.

If not, execute the following procedures.

The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.

The density level of each color must be almost at the same
level.

Patch B may not be copied.

Patch A must not be copied.

When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.

If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)

4)

Select the color to be adjusted with the color select key, and
select the adjustment point with the scroll key.

5)

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

The adjustment value is set in the range of (1 - 999). When
SIM 67-24 is used to adjust the automatic color balance and
density, all the set values of this simulation are set to 500.

To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.

Repeat procedures of 2) - 5) until the condition of 3) is satis-
fied.

When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A - Q (MAX) to a same level collectively.

Then, adjust each patch density individually. This is an efficient
way of adjustment.

Referring to the black/gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the black/gray patch level as far as possible.

 

EXECUTE

EXECUTE

OK

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High density

1) The max. density section is not blurred.

2) Patch C or D of each of Y, M, C, and BK is very slightly copied.

Low density

CMY
blend

3) Patch for each of Y, M, C, BK

The patch density is identical between patches or not reversed.
The patch density is changed gradually.

MX-5141N  ADJUSTMENTS AND SETTINGS  5 – 83

6)

Check the color balance and density.

(Refer to the item of the printer color balance and density
check.)

NOTE:

If the color balance is customized, use SIM 67-27 to register
the color balance as the service target.

If the color balance is not customized, this procedure is not
required.

If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.

 

This adjustment is used to execute the fine adjustment in each
mode only when a satisfactory image quality is not obtained by the
basic adjustments ADJ 11E (1) and ADJ 11E (2) or there is a
request from the user. Normally there is no need to execute this
adjustment.

This must be well understood for execution of the adjustment.

 

This adjustment is used to adjust the image density in the low den-
sity area in the printer mode.

Adjust to reproduction setting of the low density image.

This adjustment is required in the following cases.

* When it is required not to reproduce images in the low density

section, or to reproduce low-density images.

* When there is request from the user.

1)

Enter the SIM 67-36 mode.

2)

Enter the adjustment value and press the [OK] key.

In case of increase of the image density on low density part,
increase the adjustment value. For diluting the image density
on low density part, decrease the adjustment value.
 

 

When a tone gap is generated in the high density section in the
printer mode, the setting is changed to lower the density in the high
density section.

This setting is normally not required, however, in the following
cases, a change of setting must be made.

* When a tone gap occurs on part of high density.

* To lower the density in the high density section.

1)

Enter the SIM 67-34 mode.

2)

Select the item A, B with the scroll key.

OK 

 

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2.

10-key

A

CMY 

(0: ENABLE 
1:DISABLE)

0

CMY engine maximum 
density correction mode 
Enable

0 - 1

0

1

CMY engine maximum 
density correction mode 
Disable

B

K 

(0:ENABLE

 1: DISABLE)

0

K engine maximum 
density correction mode 
Enable

0 - 1

1

1

K engine maximum 
density correction mode 
Disable

C

CYAN  MAX 

TARGET

Scanner target value for 
CYAN maximum density 
correction

0 - 999

500

OK 

10-key

 

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MX-5141N  ADJUSTMENTS AND SETTINGS  5 – 84

* If a tone gap occurs on part of high density, set 0 to item A and B

The density of high density part decreases. However, the tone
gap is better.

* In case of more increase of the density on high density part, set 1

to item A and B.

The tone gap may occur in high density part.

NOTE: If the setting values of item C, D, E and F are changed,

density of the high density part is changed.

When these values are changed, be sure to perform the
printer color balance and density adjustment. (Automatic
adjustment)

 

 

This adjustment is used to adjust the color balance and the density
in the monochrome mode, the heavy paper mode, and the gloss
paper mode.

This simulation is used to improve image quality in these modes
and images.

1)

Enter the SIM67-54 mode.

2)

Press [EXECUTE] key.

A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.
The color patch image (adjustment pattern) is printed out.

3)

Set the color patch image (adjustment pattern) printed in the
procedure 2) on the document table so that the thin lines on
the printed color patch image (adjustment pattern) are on the
left side. Place 5 sheets of white paper on the printed color
patch image (adjustment pattern).

4)

Press [EXECUTE] key.

The color balance adjustment is automatically performed.

The adjustment pattern is printed out. Check it for any abnor-
mality.

5)

Press [OK] key.

The list of the adjustment items (for each dither) is displayed.

6)

Select an adjustment item (for each dither).

7)

Press [EXECUTE] key.

A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.

The color patch image (adjustment pattern) is printed out.

8)

Set the color patch image (adjustment pattern) printed in the
procedure 7) on the document table so that the thin lines on
the printed color patch image (adjustment pattern) are on the
left side. Place 5 sheets of white paper on the printed color
patch image (adjustment pattern).

9)

Press [EXECUTE] key.

The color balance adjustment is automatically performed, and
the machine goes to the state of procedure 6).

10) When [OK] key is pressed, the adjustment result is registered

and the adjustment mode is terminated. When [EXECUTE]
key is pressed, the adjustment result is registered and the
screen is shifted to the other item (Mode/Image) select menu.

To execute the adjustment of the other item (Mode/Image),
press [EXECUTE] key.

After completion of all the adjustments of the items (Mode/
Image), press [OK] key, and the adjustment results are regis-
tered.

11) Make a print, and check the print image quality.

(Refer to the item of the printer color balance and density
check.)

NOTE: Use SIM67-52 to reset the adjustment values to the default

values.

D

MAGENTA MAX 

TARGET

Scanner target value for 
MAGENTA maximum density 
correction

0 - 999

500

E

YELLOW MAX 

TARGET

Scanner target value for 
YELLOW maximum density 
correction

0 - 999

500

F

BLACK  MAX 

TARGET

Scanner target value for 
BLACK maximum density 
correction

0 - 999

500

Heavy Paper

Adjustment item to improve the color balance in the 
heavy paper mode

B/W

Adjustment item to improve the density and gradation in 
the monochrome mode

Gloss Paper

Adjustment item to improve the color balance in the 
gloss paper mode

1200dpi 1bit 

Adjustment item to improve the color balance in 1200dpi 
mode

MX-5141N  ADJUSTMENTS AND SETTINGS  5 – 85

 

In the user program mode, the user can execute the auto color cal-
ibration (auto adjustment of the printer color balance and density).

This adjustment is to set Enable/Disable of the above user opera-
tion with SIM 26-53.

NOTE: This setting must be set to ENABLE only when the user's

understanding on the automatic adjustment of the copy
color balance and density and the user's operational ability
are judged enough to execute the adjustment.

When set to enable, operation procedures must be fully
explained to the user.

1)

Enter the SIM 26-53 mode.

2)

Select ENABLE or DISABLE with 10-key.

When disabling, set to "0" (NO). When enabling, set to "1"
(Yes).

3)

Press [OK] key.

When set to DISABLE, the menu of the user auto color calibration
(automatic adjustment of printer color balance and density) is not
displayed in the user program mode.

NOTE: This adjustment is based on the service target color bal-

ance set with SIM 67-27 or SIM 67-28. If, therefore, the
above settings are not properly performed, this adjustment
cannot be made properly.

1)

Enter the system setting mode.

2)

Enter the printer setting mode.

3)

Press the auto color calibration key.

4)

Press [EXECUTE] key.

The color patch image (adjustment pattern) is printed out.

5)

Set the color patch image (adjustment pattern) printed in pro-
cedure 4) on the document table.

Set the patch image so that the thin line is on the left side as
shown in the figure.

At that time, place 5 sheets of white paper on the above color
patch image (adjustment pattern).

6)

Press [EXECUTE] key, and the printer color balance adjust-
ment is executed automatically. 

The message, "Will you go on to the copy color balance
adjustment?" is displayed.

To execute the copy color balance adjustment successively,
perform the procedures same as the above.

 

This adjustment must be performed in the following cases:

* The manual paper feed tray section has been disassembled.

* The manual paper feed tray unit has been replaced.

* U2 trouble has occurred.

* The PCU PWB has been replaced.

* The EEPROM of the PCU PWB has been replaced.

OK

10-key

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