Setting And Adjustments; List Of Setup Items - Sharp AR-C150 Service Manual

AR-C150

[7] SETTING AND ADJUSTMENTS

1. List of setup items

Set item
SET M1 Auto color balance adjustment target setup
SET M2 Auto color balance adjustment target
selection
SET M3 User auto color calibration (Copy color
balance, auto density adjustment)
SET M1
Auto color balance adjustment target
setup
A. Outline
Auto color balance adjustment is performed with a certain color
balance (gamma) as a target. There are following two kinds of tar-
gets:
Only the service target among them allows optional setup of a color
balance (gamma) target.
1) Service target
This is provided to correct the shift in the reference color balance
(gamma) due to the machine fluctuations.
An optional color balance (gamma) target can be set according to
the user's request.
In addition, the default target can be used as the service target.
Normally this is set to the standard color balance (gamma).
2) Factory target
This is the color balance (gamma) target which is set in the fac-
tory.
It is set to the standard color balance (gamma), and can be used
when the service target falls in an abnormal state by some
reasons.
It cannot be changed in the market.
When shipping from the factory, the service setup and the factory
setup are the same color balance (gamma) target.
This setup must be performed in the following cases:
•
When the copy color balance and the density adjustment is
manually performed. (SIM 46-21)
•
When a U2 trouble occurs.
•
When the ICU main PWB is replaced.
•
When the EEPROM on the ICU main PWB is replaced.
B. Setup procedure
(Procedure to set the standard color balance (gamma) or
an optional color balance (gamma) as the service target)
1) Two sheets of color patch image (adjustment pattern) are out-
putted in the copy color balance adjustment (manual adjustment)
(SIM 46-21). (ADJ M17/ADJ3)
At that time, when the color balance is shifted from the standard,
an adjustment is required. If not, there is no need to adjust.
If an optional color balance is required according to the user's re-
quest, an adjustment is required.
2) Enter the SIM 63-7 mode.
Related
simulations
46-21,
63-7, 63-8
63-8, 46-24
3) Press the SETUP key.
26-53
4) Set the color patch image (adjustment pattern) paper printed in
the copy color balance adjustment (manual adjustment) (SIM 46-
21) (ADJ M17/ADJ3) on the original table.
Set the paper on the original table so that the darker density side
comes on the left side. Then place 5 sheets of white paper on the
color patch image (adjustment pattern).
5) Press the EXECUTE key.
The color patch image (adjustment pattern) is read.
6) Press the REPEAT key and set the second color patch image (ad-
justment pattern) on the original table.
7) Press the OK key.
The color balance (gamma) corresponding to the color patch
image (adjustment pattern) printed in the copy color balance ad-
justment (manual adjustment) (ADJ M17/ADJ3) is set as the ser-
vice target.
(Procedure to set the default (standard) color balance
(gamma) as the service target)
1) Enter the SIM 63-8 mode.
2) Press the EXECUTE key.
3) Press the YES key.
The service target becomes the same as the default (standard)
target.
NOTE: To reset to the original service target, SET M1 must be per-
formed.
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