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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 60

2) Select the item A, B with the scroll key.

* 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.

CAUTION: Do not change the setting values of item C, D, E and F.

If these values are changed, density of the high density
part is changed.
If these values are changed, be sure to execute the
copy color balance density adjustment. (Auto adjust-
ment)
 

 

This adjustment is used to set the color balance and the density in
the single color copy mode to the user's request.
The adjustment is made by changing Y, M, C components of each
color.
This adjustment is not required normally, but executed when there
is a request from the user.
When the default adjustment value is changed, this adjustment is
required in the following cases.
* When it is required to change the color balance in the single

color copy mode.

* When there is request from the user.

a. Adjustment procedure
1)

Enter the SIM 46-25 mode.

2)

Select the color to be adjusted with the scroll key.

3)

Select the color (YMC) to be adjusted with the color key.

4)

Enter the adjustment value with 10-key.

5)

Press [OK] key.

6)

Make a copy in the single color copy mode and check the
copy.

If a satisfactory result is not obtained, return to the SIM 46-25 mode
and change the adjustment value.
Repeat the above procedures until a satisfactory result is obtained.
 

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

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

A

RED

0 - 255

0

255

200

B

GREEN

0 - 255

255

0

255

C

BLUE

0 - 255

255

200

0

D

YELLOW

0 - 255

0

0

255

E

MAGENTA

0 - 255

0

255

0

F

CYAN

0  -  255

255

0

0

OK 

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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 61

 

This setting is normally not required, however, in the following
cases, make changes to the setting:
* When copy in DSPF mode differs from copy in document table

mode.

* When copy density in DSPF mode is low or too high.
* When the DSPF unit is replaced.
* When the DSPF unit is disassembled.
* The CCD unit has been replaced.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.

a. Adjustment procedure
1) Enter the SIM 46-9 mode.

2) Select the mode to be adjusted with the scroll key.

When adjusting density on low density part, select "A (COPY
LOW)". When adjusting density on high density part, select "D
(COPY HIGH)".

3)

Enter the adjustment value with 10-key.
In case of increase of image density, input large numeric
value. Or in case of diluting the image density, input small
numeric value.

4)

Press [OK] key.

5)

Make a copy in the DSPF mode and check the copy.

If a satisfactory result is not obtained, return to the SIM 46-9 mode
and change the adjustment value.
Repeat the above procedures until a satisfactory result is obtained.
 

 

a. General
In the user program mode, the user can execute the auto color cal-
ibration (auto adjustment of the copy color balance and density).
This adjustment is to set Enable/Disable of the above user opera-
tion with SIM 26-53.

CAUTION: 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 oper-
ational ability are judged adequate enough to execute
the adjustment.
When set to enable, operation procedures must be fully
explained to the user.

A

OC

COPY 
SIDEA: 
LOW

DSPF copy mode 
exposure adjustment 
(Low density side)

1 - 99

47

B

SCAN 
SIDEA: 
LOW

DSPF scanner mode 
exposure adjustment 
(Low density side)

1 - 99

47

C

FAX SIDEA: 
LOW

DSPF FAX mode 
exposure adjustment 
(Low density side)

1 - 99

47

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D

OC

COPY 
SIDEA: 
HIGH

DSPF copy mode 
exposure adjustment 
(High density side)

1 - 99

52

E

SCAN 
SIDEA: 
HIGH

DSPF scanner mode 
exposure adjustment 
(High density side)

1 - 99

52

F

FAX SIDEA: 
HIGH

DSPF FAX mode 
exposure adjustment 
(High density)

1 - 99

52

A

DSPF

COPY 
SIDEB: 
LOW

DSPF copy mode 
exposure adjustment 
(Low density side)

1 - 99

47

B

SCAN 
SIDEB: 
LOW

DSPF scanner mode 
exposure adjustment 
(Low density side)

1 - 99

47

C

FAX SIDEB: 
LOW

DSPF FAX mode 
exposure adjustment 
(Low density side)

1 - 99

47

D

COPY 
SIDEB: 
HIGH

DSPF copy mode 
exposure adjustment 
(High density side)

1 - 99

50

E

SCAN 
SIDEB: 
HIGH

DSPF scanner mode 
exposure adjustment 
(High density side)

1 - 99

50

F

FAX SIDEB: 
HIGH

DSPF FAX mode 
exposure adjustment 
(High density)

1 - 99

50

G

BALANCE 
SIDEB: R

DSPF color balance 
R

1 - 99

50

H

BALANCE 
SIDEB: G

DSPF color balance 
G

1 - 99

50

I

BALANCE 
SIDEB: B

DSPF color balance 
B

1 - 99

50

MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 62

b. Setting procedure
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 copy color balance and density) is not dis-
played in the user program mode.

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

ance set with SIM 63-7 and SIM 63-8. If, therefore, the
above settings are not properly performed, this adjust-
ment cannot be made properly.

1) Enter the system setting mode.
2) Enter the copy 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 copy color balance adjustment
is executed automatically. After completion of the adjustment,
the display returns to the original operation screen.
The message, "Will you go on to the printer color balance
adjustment?" is displayed.
To execute the printer color balance adjustment successively,
perform the procedures same as the above.

 

a. General
This simulation is used to improve the image quality in a certain
mode. (Refer to the list in procedure 6.)

b. Adjustment procedures
1)

Enter the SIM46-54 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.

3)

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

OK

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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 63

4) Press [EXECUTE] key.

The color balance and the density are automatically adjusted.
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).

*1: When performing adjustments in the heavy paper mode, 

load paper in the manual paper feed tray. 

7) Press [EXECUTE] key.

A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.
The patch image (adjustment pattern) is printed out.
In the monochrome mode, only the monochrome pattern is
printed.

8) Set the patch image (adjustment pattern) printed in the proce-

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

9)

Press [EXECUTE] key.
The color balance and the density are automatically adjusted,
and the machine goes to the state of procedure 6).
To complete the adjustment and enable the adjustment result,
press [OK] key.

10) Make a copy, and check the copy image quality.

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

NOTE: Use SIM46-52 to reset the adjustment values to the default

values.

Heavy Paper *

1

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

Black Edge

Adjustment item (K) to improve the reproduction of lines, 
text density, and thickness

Color Edge

Adjustment item (Color) to improve the reproduction of 
lines, text density, and thickness

B/W

Adjustment item to improve the density and gradation in 
the monochrome text mode and the map mode.

Color Ed

Adjustment item to improve the color balance in the text 
mode and the map mode.

B/W 600dpi

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

B/W 1200dpi

Adjustment item to improve the density and gradation in 
the monochrome printed photo mode and the photogra-
phy mode.

WOVEN1

Adjustment item when adjusting the watermark density 
in the watermark mode 1

WOVEN2

Adjustment item when adjusting the watermark density 
in the watermark mode 2

WOVEN3

Adjustment item when adjusting the watermark density 
in the watermark mode 3

WOVEN4

Adjustment item when adjusting the watermark density 
in the watermark mode 4