Adj 22] Printer Color Balance Adjustment - Sharp AR-BC260 Service Manual

ADJ 22 Printer color balance adjustment
ADJ 22A Printer automatic color balance adjustment
Enable when "1" is set in SIM 26-54.
1) Execute SIM 67-24.
2) Press EXECUTE key on the LCD display to output a patch
self-print for the scanner adjustment. The process control is
executed. When the display of "NOW PROCON EXECUTING"
is gone, the color patch for the printer adjustment written as
"PRINTER CALIBRATION" is outputted. (Note that it is differ-
ent from the color patch for the copy adjustment. If it is errone-
ously set, an error display is made.)
3) Set the print made in procedure 2) on the table glass with the
higher density side on the paper exit side.
Put five sheets of white paper on the print, select FACTORY
key, and press EXECUTE key again to make an output.
[Enter SIM 67-24,
and press EXECUTE key.]
[Press OK key.]
5) At the end, check that the printed color balance check patch is
within the following specifications.
Fig. 1 PG image
High density
C
M
Y
Bk
Max
O N M L K
1) The max. density
section is not blurred.
3) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.
The print density is gradually changed from the lower area to the
higher area without reversing of the change direction.
The density level of each color is virtually same.
Patch B may not be printed.
Low density
J I H G F E D C B A
2) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
AR-BC260 SETTING AND ADJUSTMENTS 8 - 41
4) After making an output print, press OK key on the LCD dis-
play. Press CA key on the main unit to terminate the simula-
tion.
(Document reference)
[Set paper and select FACTORY key.]
[Press CA key.]
The performance of the color balance adjustment can be checked
more precisely by printing the color balance adjustment sheet with
SIM 67-25 and comparing the black patch color balance of each
process (CMY) with the black patch.
High density
C
M
Y
Bk
CMY
mixed
color
Max
O N M L K
1) The max. density section is not blurred.
4) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.
Low density
J I H G F E D C B A
3) Patch C or D of each of Y, C, M,
and BK is very slightly copied.