Printer Image Quality Adjustment; Printer Color Balance Adjustment - Sharp MX-1810U Service Manual

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Watermark adjustment in the system setting
System setting  Security setting  Watermark print 
Contrast tab
Watermark kind
Density
mode selection
Character
To increase the
appearing
text density
To decrease the
text density
Background
To increase the
appearing
text density
To decrease the
text density
Note for adjusting the watermark with SIM46-54
When the color balance automatic adjustment is executed with
SIM46-74 or SIM46-24 but the containing characters are
reproduced, use SIM46-54 to execute the color balance auto-
matic adjustment for each dither.
However, note the following items.
• When either of item K or L of the PATTERN mode is 42, the
adjustment must be executed for the both modes of
WOVEN1 and WOVEN2 of SIM46-54.
• When either of item K or L of the PATTERN mode is 43, the
adjustment must be executed for the both modes of
WOVEN3 and WOVEN4 of SIM46-54.
• WOVEN1 and WOVEN2 must be adjusted in a pair as well
as WOVEN3 and WOVEN4.
If it is ignored, the containing characters remain reproduced.
Adjustment
Decrease the contrast value.
(Default: 5)
Increase the contrast value.
(Default value: 5)
Increase the contrast value.
(Default value: 5)
Decrease the contrast value.
(Default: 5)
MX-3610N ADJUSTMENTS AND SETTINGS 4 – 67
10-E

Printer image quality adjustment

(Basic adjustment)
Requisite condition before execution of the printer color bal-
ance/density adjustment
Before execution of the printer color balance/density adjustment,
the copy color balance/density adjustment must have been com-
pleted properly.
This adjustment is required in the following cases.
* Basically same as when the copy color balance/density adjust-
ment is required.
* After the copy color balance/density adjustment.
10-E
(1)

Printer color balance adjustment

(Automatic adjustment)
a. General
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.

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