Sharp MX 3501N - Color Laser - Copier, Service Manual

Page: 84 / 448

MX3500N ADJUSTMENTS 6 – 39
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.
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 245 – 755 (1 –
999). When SIM 46-24 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 – O to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black and gray patches, adjust so that each
process (CMY) black/gray patch color balance of A – O
approaches the black/gray patch level as far as possible.
6) Make a copy of the servicing color test chart (UK0G-
0283FCZZ) and a user's document according to necessity in
the normal copy mode, the text/Printed Photo mode (Manual)
to check the adjustment result. (Refer to the item of the copy
color balance/density check.)
7) Execute SIM 44-21. (Execute the initial setting of the half tone
image correction.)
It takes several minutes to complete the operation. After com-
pletion of the operation, "COMPLETE" is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
This procedure is to save the copy color balance adjustment
data as the reference data for the half tone correction.
Immediately after execution of ADJ 20C (Color balance adjust-
ment, Manual) with SIM 46-21, be sure to execute this proce-
dure.
When ADJ 20B (Color balance adjustment, Auto) is executed
with SIM 46-24, this procedure is automatically executed.
When [EXECUTE] key is pressed, it is highlighted and the
operation is started.
8) Execute SIM 44-26 to perform the half tone image correction.
(Forcible execution)
Enter the SIM 44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
It takes several minute to complete the operation. After com-
pletion of the operation, "COMPLETE" is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
TOUCH [EXECUTE] THEN EXECUTION START.
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
RESULT
COMPLETE
RESULT
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
0
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
TOUGH [EXECUTE] THEN EXECUTION START.
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
RESULT
COMPLETE
RESULT
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
0
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT