MX-C301, MX-C301W (serv.man5). Service Manual (Revised May 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 109

MX-C301  ADJUSTMENTS  5 – 71

 

Before execution of the printer color balance/density adjustment,
the copy color balance/density adjustment must have been com-
pleted properly.

* Basically same as when the copy color balance/density adjust-

ment is required.

* After the copy color balance/density adjustment.

 

The color balance adjustment (auto adjustment) is used to adjust
the print density of each color (Cyan, Magenta, Yellow, Black) auto-
matically with SIM 67-24 or the user program.

When this adjustment is executed, the color balance adjustments
of all the print modes are revised.

There are following two modes in the auto color balance adjust-
ment.

1)

Auto color balance adjustment by the serviceman (SIM 67-24
is used.)

2)

Auto color balance adjustment by the user (The user program
mode is used.) (The color balance target is the service target.)

The auto color balance adjustment by the user is provided to
reduce the number of service calls.

If the print color balance is lost for some reasons, the user can
use this color balance adjustment to recover the balance.

When, however, the machine has a fatal problem or when the
machine condition is greatly changed, this function does not
work effectively.

On the other hand, the auto color balance adjustment by the
serviceman functions to recover the normal color balance
though the machine condition is greatly changed. If the
machine has a fatal problem, repair and adjust it for obtaining
the normal color balance.

To perform the adjustment, the above difference must be fully
understood.