DOWNLOAD Sharp MX-3050N / MX-3060N / MX-3070N / MX-3550N / MX-3560N / MX-3570N / MX-4050N / MX-4060N / MX-4070N (serv.man6) Service Manual ↓ Size: 104.48 MB | Pages: 127 in PDF or view online for FREE

MX-4070V  ADJUSTMENTS AND SETTINGS  5 – 59

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Printer color balance and density adjustment (Automatic adjustment) procedure 
flowchart (SIM67-24)

Start

Printer color balance and density adjustment 
(Automatic adjustment).

Enter the SIM67-24 mode, and select A4 
(11" x 8.5") paper.

Press [EXECUTE] key. 
(The adjustment pattern is printed.)

Set the adjustment pattern on the document table. 
Select the FACTORY target or the SERVICE target, 
and press [EXECUTE] key. (The adjustment pattern 
is scanned, and the adjustment is automatically 
performed to print the check pattern.) (*1)

Check the printed check pattern for any streaks or 
unclear copy. (*4)

Press [OK] key. (The initial setting of the halftone 
image correction is automatically performed.) (*2)

Cancel SIM67-24.

Are the color balance and 
density at the satisfactory 
level?

End

Automatic adjustment color balance target change

Change the color balance and density target. 
(SIM67-26)

Though the FACTORY 
color balance and density 
target (available in 3 kinds) is 
changed, satisfactory color 
balance and density are not 
obtained (SIM67-26), or the 
SERVICE target is 
selected.

*1:
When the color balance and density are customized and 
registered as the SERVICE target, select the SERVICE 
target. 
*2: 
If the initial setting of the halftone image correction is not 
properly adjusted, satisfactory color balance and density 
cannot be obtained. In this case, check the print engine for 
any problems. 
*3:
If satisfactory color balance and density are not obtained 
with printer color balance and density adjustment (Manual 
adjustment) (SIM67-25), check the print engine for any 
problems. 
*4:
If there is any streak or unclear copy on the printed check 
pattern, check the print engine for any problems.

Use SIM64-5 to print the self print 
check pattern, and check the printer color balance 
and density.

Check the self print check pattern to check the printer 
color balance and density adjustment. 

Printer color balance and density adjustment 
(Manual adjustment). (SIM67-25) (*3)

MX-4070V  ADJUSTMENTS AND SETTINGS  5 – 60

1) Enter the SIM 67-24 mode.
2) Press [EXECUTE] key. 

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

3) Set the color patch image (adjustment pattern) paper printed in

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

4) Select [FACTORY] key, and press [EXECUTE] key.

When the color balance is customized with the manual color
balance adjustment (SIM 67-25) according to the user's
request and the color balance is registered as the service tar-
get with SIM 67-27, if the color balance is adjusted to that color
balance, select the service target.
The copy color balance adjustment is automatically executed
and prints the color balance check patch image. Wait until the
operation panel shown in the procedure 5) is displayed.

5) Press [OK] key on the operation panel.

After pressing [OK] key, the initial setting of the halftone image
correction is started. During the operation, "NOW REGISTER-
ING THE NEW TARGET OF HALFTONE" is displayed.

After completion of the operation, "PLEASE QUIT THIS
MODE" is displayed.
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
After completion of the operation, the simulation is canceled.

6)

Check the color balance and density.
(Refer to the item of the printer color balance and density
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 4), change the factory color balance target with SIM
67-26 and repeat the procedures from 1).
If a satisfactory result on the color balance and the density is
not obtained with the automatic adjustment, execute the man-
ual adjustment (SIM 67-25).
Also when the service target is selected in procedure 4) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment.

If the color balance or density is not in the satisfactory level even
after execution of the automatic and manual adjustments, there
may be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.

 

The color balance adjustment (Manual adjustment) is used to
adjust the printer density of C, M, Y and K. This is used at the fol-
lowing situation. When the result of auto adjustment described
above is not existing within the range of reference. When a fine
adjustment is required. When there is request from the user for
changing (customizing) the color balance.
In this manual adjustment, adjust only the color patch which could
not adjusted properly in the automatic adjustment.
If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.

MX-4070V  ADJUSTMENTS AND SETTINGS  5 – 61

1)

Enter the SIM 67-25 mode.

2)

Press [EXECUTE] key. 
The color patch image (Adjustment pattern) is printed.

3)

Check that the following condition is satisfied or the color bal-
ance 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.

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Printer color balance and density adjustment (Manual 
adjustment) procedure flowchart (SIM67-25)

Start

Printer color balance and density 
adjustment (Manual adjustment). (*1)

Enter the SIM67-25 mode, and select A4 
(11" x 8.5") paper. (Automatic selection.)

Press [EXECUTE] key. 
(The adjustment pattern is printed.)

Check the printed adjustment check pattern, 
and select a target adjustment color with the 
color keys (C,M,Y,K).

Select a target adjustment density level.

Enter the adjustment value with 10-key. 

Press [EXECUTE] key. 
(The adjustment pattern is printed.)

Are the color balance 
and density at the sati-
sfactory level?

Cancel the SIM67-25 mode.

Set the SERVICE target for the 
automatic printer color balance 
adjustment. (SIM67-27)

End

Check the patch color balance and density in the 
process gray of the color balance check pattern. 

*1: 
If satisfactory color balance and density are not 
obtained with the adjustment, check the print 
engine for any problems. 

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Are the color balance and 
density at the satisfactory 
level?

Use SIM64-5 to print the self print 
check pattern, and check the 
printer color balance and density.

Check the self print check pattern to check the printer color 
balance and density adjustment. 

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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 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-4070V  ADJUSTMENTS AND SETTINGS  5 – 62

6) Check the color balance and density.

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

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 14E (1) and ADJ 14E (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.

• 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.

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

A

CMY 
0:ENABLE 
1:DISABLE

CMY engine maximum 
density correction mode 
Enable 

0

0  -  1

0

CMY engine maximum 
density correction mode 
Disable

1

B

K 
0:ENABLE 
1:DISABLE

K engine maximum 
density correction mode 
Enable

0

0  -  1

1

K engine maximum 
density correction mode 
Disable

1

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

G

PRINTER 
TOTAL TONER 
LIMIT SETUP

Printer total toner limit set up

0 - 3

0