MX-2300/2700 N/G ADJUSTMENTS 6 – 55
(Abnormal end (Auto transition))
9)
After completion of the operation, cancel SIM 44-26.
10) Use SIM 64-5 to print the print test pattern again.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed out.
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.
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.
(Auto color balance adjustment service color balance target
gamma setting)
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.
* When a U2 trouble occurs.
* 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
K
M
Y
C
SIMULATION
NO.44-26
TEST
HALF
TONE
DENSITY
CORRECT
EXECUTION
[S_VALUE]
#1: ERR,
#2: ERR,
#3: ERR,
#4: ERR,
#5: ERR
#6: ERR,
#7: ERR,
#8: ERR,
#9: ERR, #10: ERR
#11: ERR, #12: ERR, #13: ERR, #14: ERR,#15: ERR
1/1
EXECUTE
CLOSE
0
Kind
Descriptions
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 reproduction
(DEF1))
If 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
target.
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.