MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man13). Service Manual-Section 5-Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 88

MX-4101N  ADJUSTMENTS  5 – 88

7)

Use SIM 64-5 to print the print test pattern and check the print
color balance and the density.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed.

8)

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.
In the next color balance adjustment, select the service target
color balance in the automatic color balance adjustment mode
to make an adjustment to the similar color balance as the reg-
istered color balance.

NOTE: If the color balance is customized, use SIM 67-27 to regis-

ter the color balance as the service target. If the color bal-
ance is not customized, this procedure is not required.
If the customized color balance is registered as the service
target, the automatic color balance adjustment can be
made in the next color balance adjustment.
In the next color balance adjustment, select the service tar-
get color balance in the automatic color balance adjust-
ment mode to make an adjustment to the similar color
balance as the registered color balance.

(Gamma setting of auto color balance adjustment service
color balance target)
a. General
When the automatic color balance adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) target
In the above three, only the service color balance target can be set
to a desired level.
This adjustment is required in the following cases.
* When the copy color balance/density adjustment (manual adjust-

ment) is executed with SIM 67-25.

* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as

improper.

• Color balance target for the printer color balance adjustment

A

Factory color 
balance 
(gamma) 
target

There are three kinds of the color balance 
target, and each of them is specified according 
to the machine design. Use SIM 67-26 to select 
one of them as the factory target. The default 
setting (factory setting) is the color balance 
(DEF1) which emphasizes color reproduction.

B

Service color 
balance 
(gamma) 
target

This target is used when the user requests to 
customize the color balance to user's desired 
level. In advance, the user's unique color 
balance must be registered as the service color 
balance target. The above registration (setting) 
is made by the serviceman with SIM 67-25 to 
adjust the color balance and with SIM 67-27 to 
register it.
This color balance target is used when the user 
executes the color balance adjustment. When, 
therefore, the service color balance target is 
changed, the color balance target of the user's 
color balance adjustment is also changed. 
When, however, SIM 67-28 is executed, the 
color balance is set to the factory color balance 
target set with SIM 67-26. The default setting 
(factory setting) of the color balance is same as 
the factory color balance target. (Emphasized 
on color reproduIf the user does not request for 
customizing the color balance, be sure to use 
SIM 67-28 to set the color balance to the factory 
color balance targetction (DEF1))

C

User  color 
balance 
(gamma) 
target

Same color balance as the service color 
balance (gamma) target When the service color 
balance target is changed, this color balance 
target is also changed accordingly.