MX-4100N, MX-4101N, MX-5000N, MX-5001N (serv.man13). Service Manual-Section 5-Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 92

MX-4101N  ADJUSTMENTS  5 – 92

(NOTE) If the setting values of item C, D, E and F are changed,
density of the high density part is changed.
When these values are changed, be sure to perform the printer
color balance and density adjustment. (Automatic adjustment)

 

a. General
In the user program mode, the user can execute the auto color cal-
ibration (auto adjustment of the copy color balance and density).
This adjustment is to set Enable/Disable of the above user opera-
tion with SIM 26-54.

CAUTION: This setting must be set to ENABLE only when the

user's understanding on the automatic adjustment of
the copy color balance and density and the user's oper-
ational ability are judged enough to execute the adjust-
ment.
When set to ENABLE, give enough explanations on the
operating procedures, notes, and operations to the
user.

This adjustment is required in the following cases.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
b. Setting procedure
1)

Enter the SIM 26-54 mode.

2)

Select ENABLE or DISABLE with 10-key.
When disabling, set to "0" (NO). When enabling, set to "1"
(Yes).

3)

Press [OK] key.

When set to DISABLE, the menu of the user auto color calibration
(automatic adjustment of printer color balance and density) is not
displayed in the user program mode.

(Auto color calibration by the user (Auto color balance adjustment))
Remark: This adjustment is based on the service target color bal-
ance set with SIM 67-27 or SIM 67-28. If, therefore, the above set-
tings are not properly performed, this adjustment cannot be made
properly.
1)

Enter the system setting mode.

2)

Enter the printer setting mode.

3)

Press the auto color calibration key.

4)

Press [EXECUTE] key.
The color patch image (adjustment pattern) is printed out.

5)

Set the color patch image (adjustment pattern) printed in pro-
cedure 4) on the document table.
Set the patch image so that the light density area is on the left
side.
At that time, place 5 sheets of white paper on the above color
patch image (adjustment pattern).

6)

Press [EXECUTE] key, and the copy color balance adjustment
is executed automatically. After completion of the adjustment,
the display returns to the original operation screen.

 

This adjustment is needed in the following situations:
* When a consumable part (developer, OPC drum, transfer belt) is

replaced.

* When the CCD unit is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
a. General
SIM46-74 is used to perform the automatic copy color balance and
density adjustment (SIM46-24) and the automatic printer color bal-
ance and density adjustment (SIM67-24) continuously.
Since it is desirable to perform the copy color balance adjustment
(automatic adjustment) before the automatic printer color balance
and density adjustment, it is advisable to perform the adjustment in
this mode.
This mode is also advisable to effectively perform both of the auto-
matic copy color balance and density adjustment (SIM46-24) and
the automatic printer color balance and density adjustment (SIM67-
24). It saves considerable time when compared with performing
each of the auto copy/printer color balance and the density adjust-
ment individually.

OK

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