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MX-3640N  ADJUSTMENTS AND SETTINGS  5 – 62

 

ance/density adjustment
Before  execution of the printer   color  balance/density adjustment,

the  copy  color balance/den sity  adjustment  must have   been  com-

pleted properly.

This adjustment is required in the following cases.
* Basically same as when the copy color balance/density adjust-

ment is required.

* After the copy color balance/density adjustment.

 

a. General
The color balance adjustment (auto adjustment) is used to adjust

the print density of each color (Cyan, Magenta, Yellow, Black) auto-

matically with SIM 67-24 or the user program.
When this adjustment is executed, the color balance adjustments

of all the print modes are revised.

There  are  following  two  modes  in  the  auto  color  balance  adjust-

ment.
1) Auto color balance adjustment  by the serviceman ( SIM 67-24

is used.)

2) Auto color balance adjustment by the user (The user program

mode is used.) (The color balance target is the service target.)
The auto color balance adjustment by the user is  provided to

reduce the number of service calls.
If the print color balance is lost for some reasons, the user can

use this color balance adjustment to recover the balance.
When, however, the machine has a fatal problem or when the

machine  condition  is  greatly  changed,  this fu nction  does not

work effectively.
On the other hand, the auto color balance adjustment by the

serviceman  functions  to recover the   normal color   balance

though  the machine co ndition  is  greatly  changed.  If the

machine has a fatal problem, repair and adjust it for  obtaining

the normal color balance.
To perform the adjustment, the above difference must be fully

understood.

MX-3640N  ADJUSTMENTS AND SETTINGS  5 – 63

b. Adjustment procedure
(Auto color balance adjustment by the serviceman)

YES

NO

Is the PCL printer
function provided?

YES

NO

YES

NO

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

Start

Execute ADJ10E(1) (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 ADJ10E(2) (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.

Use SIM67-25 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.

Execute ADJ10E(2) (Printer color balance and density
adjustment) (Manual adjustment). (SIM67-25) (*3)

MX-3640N  ADJUSTMENTS AND SETTINGS  5 – 64

1) Enter the SIM 67-24 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) 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 sheet s of white p aper on the pr inted

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 .  This

operation takes several minutes.
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.

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MX-3640N  ADJUSTMENTS AND SETTINGS  5 – 65

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 ba lance and the density is

not obtained with the automatic adjustment, execute the man-

ual adjustment (SIM 67-25) (ADJ 10E (2)).
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 (ADJ

10E (2)).

If the color balance or density is not in the satisfactor y level even

after  execution of   the  automatic and man ual  adjustments,  there

may be another cause.
Troubleshoot  the cause, rep air  or  perform  necessary  works,  and

repeat the adjustment from the beginning.

 

 

a. General
The  color b alance  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 r esult  of auto adjustment descr ibed

above  is not existing   within  the  range  of refer ence.  When  a fine

adjustment  is requ ired.  When the re  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 auto matic color bal-

ance adjustment in advance, and execute this adjustment for better

efficiency.

YES

NO

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

Start

Execute ADJ10E(2) (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 with the
scroll key.

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.
(If the gray color is slightly shifted to Magenta,
the color balance is properly adjusted.)

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

YES

NO

Is the PCL printer
function provided?

YES

NO

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.

Use SIM67-25 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.