DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ↓ Size: 5.74 MB | Pages: 98 in PDF or view online for FREE

MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 97

 

Before executing this adjustment, be sure to check the following
items.
* There must be no unevenness in charging.
* There must be a tray with A4 (LT) paper in it.
* When this adjustment (FR density unevenness automatic adjust-

ment) is executed after execution of ADJ22-B (FR density
unevenness manual correction), the value of the manual correc-
tion will be cleared. In order to keep the value of manual correc-
tion, do not execute this automatic correction.

* Execute Sim61-13 without fail, when Drum unit, DV unit or LSU

unit is replaced.

* Especially when LSU is replaced, never forget to execute Sim61-

13.

 

This adjustment must be performed in the following cases:
* When unevenness occurs in the main scanning direction:
1) Enter the SIM 61-11 mode.
2) Press the [AUTO CORRECTION] key.

When [DATA] key is pressed, the current correction value of
"FR density unevenness automatic correction" can be
checked.

3) Press the key of the density to be checked and press [EXE-

CUTE] key. The manual correction data are cleared, and self
printing of the adjustment patch is started.
During execution, [EXECUTE] is highlighted.

4) After completion of self printing, the machine enters the

standby state for output patch scan start.

5)

Set the printed sample for scanning on the OC in the A4R
(LTR) direction, and press [EXECUTE] key to start scanning.
During execution, [EXECUTE] is highlighted.

Set the document so that the arrow direction is fit with the left
edge section for scanning.

6)

After completion of scanning the patch, the corrected data are
revised and control is executed. Then, self print of the adjust-
ment result patch is automatically started.
During execution, [EXECUTE] is highlighted.

7)

After completion of self printing, the following screen is dis-
played.
The FR density unevenness can be improved by pressing
[RETRY] key and repeating procedures 3) - 7).

8)

To reset the adjustment values to the default (factory setting),
use SIM61-13 to clear the automatic and manual correction
values.

9)

After completion of all adjustments, be sure to execute SIM46-
74 (Copy color balance adjustment).

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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 98

 

This adjustment is required in the following cases:
* When unevenness occurs in the main scanning direction:
1) Enter the SIM 61-12 mode.

Press [VISUAL INSPECTION] key to go to the density selec-
tion menu.
When [DATA] key is pressed, the current correction value of
"FR density unevenness manual correction" can be checked.

2) Press the key of the density to be checked and press [EXE-

CUTE] key. The process control is started, and self printing of
the adjustment patch is started.
During execution, [EXECUTE] is highlighted.

3) Select [4POINT CORRECTION]] key or [31POINT CORREC-

TION] key.
To make the adjustment more deliberately, select [31 POINT
CORRECTION].

4)

The screen for entry of the visual inspection measurement
result is displayed.
Enter an adjustment value based on the adjustment patch and
press [EXECUTE] key, and the data are revised and the pro-
cess control is executed.
When the value is increased, the density is increased. When
the value is decreased, the density is decreased.

5)

After completion of the adjustment, the adjustment result patch
is automatically outputted and the current correction value is
displayed.
The FR density unevenness can be improved by pressing
[RETRY] key and repeating procedures 3) - 5).

6)

To reset the adjustment values to the default (factory setting),
use SIM61-13 to clear the automatic and manual correction
values.

7)

After completion of all adjustments, be sure to execute SIM46-
74 (Copy color balance adjustment).

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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 98

 

This adjustment is required in the following cases:
* When unevenness occurs in the main scanning direction:
1) Enter the SIM 61-12 mode.

Press [VISUAL INSPECTION] key to go to the density selec-
tion menu.
When [DATA] key is pressed, the current correction value of
"FR density unevenness manual correction" can be checked.

2) Press the key of the density to be checked and press [EXE-

CUTE] key. The process control is started, and self printing of
the adjustment patch is started.
During execution, [EXECUTE] is highlighted.

3) Select [4POINT CORRECTION]] key or [31POINT CORREC-

TION] key.
To make the adjustment more deliberately, select [31 POINT
CORRECTION].

4)

The screen for entry of the visual inspection measurement
result is displayed.
Enter an adjustment value based on the adjustment patch and
press [EXECUTE] key, and the data are revised and the pro-
cess control is executed.
When the value is increased, the density is increased. When
the value is decreased, the density is decreased.

5)

After completion of the adjustment, the adjustment result patch
is automatically outputted and the current correction value is
displayed.
The FR density unevenness can be improved by pressing
[RETRY] key and repeating procedures 3) - 5).

6)

To reset the adjustment values to the default (factory setting),
use SIM61-13 to clear the automatic and manual correction
values.

7)

After completion of all adjustments, be sure to execute SIM46-
74 (Copy color balance adjustment).

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MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 98

 

This adjustment is required in the following cases:
* When unevenness occurs in the main scanning direction:
1) Enter the SIM 61-12 mode.

Press [VISUAL INSPECTION] key to go to the density selec-
tion menu.
When [DATA] key is pressed, the current correction value of
"FR density unevenness manual correction" can be checked.

2) Press the key of the density to be checked and press [EXE-

CUTE] key. The process control is started, and self printing of
the adjustment patch is started.
During execution, [EXECUTE] is highlighted.

3) Select [4POINT CORRECTION]] key or [31POINT CORREC-

TION] key.
To make the adjustment more deliberately, select [31 POINT
CORRECTION].

4)

The screen for entry of the visual inspection measurement
result is displayed.
Enter an adjustment value based on the adjustment patch and
press [EXECUTE] key, and the data are revised and the pro-
cess control is executed.
When the value is increased, the density is increased. When
the value is decreased, the density is decreased.

5)

After completion of the adjustment, the adjustment result patch
is automatically outputted and the current correction value is
displayed.
The FR density unevenness can be improved by pressing
[RETRY] key and repeating procedures 3) - 5).

6)

To reset the adjustment values to the default (factory setting),
use SIM61-13 to clear the automatic and manual correction
values.

7)

After completion of all adjustments, be sure to execute SIM46-
74 (Copy color balance adjustment).

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