Sharp MX-4100N Service Manual page 122

Item Button Display
A DSPF COPY SIDEB:
LOW
B SCAN SIDEB:
LOW
C FAX SIDEB:
LOW
D COPY SIDEB:
HIGH
E SCAN SIDEB:
HIGH
F FAX SIDEB:
HIGH
G BALANCE
SIDEB: R
H BALANCE
SIDEB: G
I BALANCE
SIDEB: B
2) Press DSPF key to select the back surface copy density
adjustment mode.
3) Select an adjustment mode with the scroll key.
To adjust the density in the low density area, select "COPY
SIDE B LOW." To adjust the density in the high density area,
select "COPY SIDE B HIGH."
4) Enter an adjustment value with 10-key.
To increase the density, enter a greater number. To decrease
the density, enter a smaller number.
5) Press [OK] key.
6) Press [CLOSE] key to exit the simulation mode.
7) Make a copy, and check the copy density.
Repeat the above procedures until a satisfactory result is obtained.
20-S Auto color balance adjustment by the user
(Copy color balance auto adjustment
ENABLE setting and 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 26-53.
NOTE: 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 operational ability
are judged enough to execute the adjustment.
When set to enable, operation procedures must be fully
explained to the user.
This adjustment is required in the following cases.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the PCU PWB is replaced.
* When the EEPROM of the PCU PWB is replaced.
Setting Default
Content
range value
DSPF copy mode 1 - 99
exposure
adjustment (Low
density side)
DSPF scanner 1 - 99
mode exposure
adjustment (Low
density side)
DSPF FAX mode 1 - 99
exposure
adjustment (Low
density side)
DSPF copy mode 1 - 99
exposure
adjustment (High
density side)
DSPF scanner 1 - 99
mode exposre
adjustment (High
density side)
DSPF FAX mode 1 - 99
exposure
adjustment (High
density side)
DSPF color 1 - 99
balance R
DSPF color 1 - 99
balance G
DSPF color 1 - 99
balance B
MX-5001N ADJUSTMENTS 5 – 80
b. Setting procedure
1) Enter the SIM 26-53 mode.
45
45
45
50
50
50
50
50
50
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 copy color balance and density) is not dis-
played 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 balance set
with SIM 63-7 and SIM 63-8. If, therefore, the above settings are
not properly performed, this adjustment cannot be made properly.
1) Enter the system setting mode.
2) Enter the copy 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.
10-key
OK
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