Sharp MX-2300 G Service Manual page 96

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
so that the thin lines on the paper are on the left side. Place 5
sheets of white paper on the printed color patch image (adjust-
ment pattern) paper.
PRINTER CALIBRATION
4) Press [FACTORY] key on the operation panel, 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.
SIMULATION NO.67-24
TEST
PRINTER ENGINE HALFTONE AUTO ADJUSTMENT MODE
PLEASE SELECT THE MODE (FACTORY) OR (SERVICE) AND PLACE
THE PRINTED TEST PATCH ON DOCUMENT GLASS THEN PRESS [EXECUTE].
,
LIGHT AREA AT LEFT SIDE ON DOCUMENT GLASS.
FACTORY
SERVICE
The print color balance adjustment (step 1) is automatically
executed to print the color balance check patch image. Wait
until the operation panel shown in procedure 5) is displayed.
Remark:
(Descriptions on FACTORY key and SERVICE key in the color
balance auto adjustment menu.)
There are two kinds of the gamma target for the color balance
auto adjustment; Factory and Service.
FACTORY key and SERVICE key are used to select one of the
above two.
Factory target color balance: Standard color balance (It can be
selected from the three kinds of fixed color balances with SIM
63-11.)
Service target color balance: The color balance can be cus-
tomized according to the user's request. (Variable)
When shipping, the service target gamma data and the factory
target gamma data are the same.
Both are set to the standard color balance when shipping.
For the service target, the customized color balance gamma
can be registered with SIM 63-7.
5)
6)
0
CLOSE
EXECUTE
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.
MX-2300/2700 N/G ADJUSTMENTS 6 – 52
Press [OK] key on the operation panel.
SIMULATION NO.67-24
TEST
PRINTER ENGINE HALFTONE AUTO ADJUSTMENT MODE
CONFIRM THE ADJUSTED PATCH AND PRESS [OK] TO REGISTER THIS PATCH DATA
PRESS [REPEAT] TO CONTINUE THIS PROCEDURE.
REPEAT
Remark:
After pressing [OK] key, the initial setting of the half tone 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.
SIMULATION NO.67-24
TEST
PRINTER ENGINE HALFTONE AUTO ADJUSTMENT MODE
COMPLETED THIS PROCEDURE.
PLEASE QUIT THIS MODE.
Check the color balance and density.
(Method 1)
Check to insure that the printed color balance check patch
image is within the following specifications.
Fig. 1 PG image
High density
Y
M
C
Bk
Max
O N M L K J I
1) The max. density
section is not blurred.
2) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
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.
Patch B may not be copied.
Patch A must not be copied.
0
CLOSE CLOSE
OK
0
CLOSE
Low density
H G F E D C B A
Patch A of each of Y, M,
C, and BK are not copied.