AR-C330 (serv.man5). ARC330-Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 114

AR-C330  SETTING AND ADJUSTMENTS  7 - 35

NOTE: The above figure is for a brief description, and does not

show the actual state.

NOTE: Do not execute SIM 63-8 unless there is any special rea-

son.

This work must be executed only when the color balance is cus-
tomized by SIM 46-21.

If the color balance is not customized, there is no need to perform
this work.

Execute SIM 46-21 to adjust the color balance (Manual) according
to the user request (customized color balance). Then use the
adjustment pattern printed in this mode to register the service tar-
get gamma data with SIM 63-7.

This will revise the service target gamma data.

It is recommendable to record the adjustment pattern printed in
the above procedure. By using the adjustment pattern, the same
color balance target can be registered in another machine. It is
also useful to register the service target gamma data again.

Be careful, however, not to fold the pattern or avoid discoloration
and dirt.

Basically the service target gamma data must be registered imme-
diately after completion of the color balance adjustment (Manual)
with SIM 46-21.

If a considerable time has passed after completion of the color bal-
ance adjustment (Manual) with SIM 46-21, the color balance of the
adjustment pattern after a considerable time differs from that
before a considerable time. Do not use such an adjustment pat-
tern.

Whether the service target gamma data are correct or not can be
determined by the following.

When the adjustment result of SIM 46-24 color balance adjust-
ment (Auto) by selecting the service target is abnormal or unsatis-
factory:

In this case, the service target gamma data may be incorrect.

The possible cause is incorrectness or abnormality of the color
balance adjustment pattern used when registering the service tar-
get gamma data of the color balance adjustment (Auto) with SIM
63-7.

The color balance adjustment pattern is printed after the color bal-
ance adjustment (Manual) with SIM 46-21. The possible cause lies
in this procedure.

1) Two sheets of color patch image (adjustment pattern) are out-

putted in the copy color balance adjustment (manual adjust-
ment) (SIM 46-21). (ADJ M17/ADJ 3)

At that time, when the color balance is shifted from the stan-
dard, an adjustment is required. If not, there is no need to
adjust.

If an optional color balance is required according to the user's
request, an adjustment is required.

2) Enter the SIM 63-7 mode.

3) Press the SETUP key.

4) Set the color patch image (adjustment pattern) paper properly

adjusted and printed in the copy color balance adjustment
(manual adjustment) (SIM 46-21) (ADJ M17/ADJ 3) on the
original table.

The color patch image (adjustment pattern) printed by SIM 64-
2 may be used. In this case, check that the printed image is
proper. (The other color patch images (adjustment patterns)
printed by another machine may be used.)

Kinds

Descriptions

A

Default color 
balance (gamma) 
target (fixed)

This is the average, standard color 
balance (gamma) target determined by 
the machine design.
This color balance (gamma) target is 
identical in all the machines, without 
consideration for individuality of 
machines.
When SIM 63-8 is executed, the service 
color balance (gamma) target becomes 
the same as this target.
In SIM 46-24 (46-22) menu, this target 
is not displayed. 

B

Factory color 
balance (gamma) 
target (fixed)

This is the standard color balance 
(gamma) target which was registered 
(set) in the factory, and cannot be 
changed in the market.
This color balance (gamma) target is set 
depending on individuality of each 
machine to obtain the standard color 
balance. It, therefore, differs slightly in 
different machines. When the service 
target falls into an abnormal state by 
some reasons, this target can be used 
instead of it.
When shipping, this target is the same 
as the service color balance (gamma) 
target. 

C

Service color 
balance (gamma) 
target (variable)

This is obtained by registering (setting) 
with SIM 63-7 the adjustment pattern of 
the color balance (gamma) which was 
adjusted with SIM 46-21.
This color balance (gamma) target is set 
depending on individuality of each 
machine to obtain the standard color 
balance. It, therefore, differs slightly in 
different machines. However, an 
optional color balance (gamma) target 
can be set according to a user's 
request.
When shipping, this target is the same 
as the factory color balance (gamma) 
target.
When SIM 63-8 is executed, the service 
color balance (gamma) target becomes 
the same as the default color balance 
(gamma) target. 

Output

A: Default color balance (gamma) 
target (fixed)

B: Factory color balance (gamma) 
target (fixed)

C: Service color balance (gamma) 
target (variable)

Input