MX-C250 ADJUSTMENTS 5 – 4
2)
Select an item to be adjusted.
Enter the adjustment value (specified value), and press [OK] key.
When [EXECUTE] key is pressed, the voltage entered in the procedure 3 is outputted for 30sec and the set value is saved.
When [EXECUTE] key is pressed, the output is stopped.
By setting the default value (specified value), the specified output is provided.
ADJ 2
Image density sensor (image
registration sensor) adjustment
There are some parts variations in the image density sensor sec-
tion. Therefore, the absolute detection level differs in each
machine. To correct this, calibration is executed.
This adjustment is needed in the following situations:
* When the color image density sensor (image registration sensor
F) is replaced.
* When the image registration sensor unit is replace.
* U2 trouble has occurred.
The targets of the adjustment are the color image density sensor
(image registration sensor F) and the black image density sensor
(image registration sensor R). There are following adjustment
methods.
* Color image density sensor (image registration sensor F) calibra-
tion SIM44-13
* Color image density sensor (Image registration sensor F) calibra-
tion value setting (SIM44-61)
* Black image density sensor (image registration sensor R) cali-
bration SIM44-2
NOTE:
The color image density sensor detects color image density
and image registration on front frame side, the black image
density sensor detects black image density and image reg-
istration on rear frame side. That is, two functions is
assigned to each one sensor.
Before executing this adjustment, check to confirm the fol-
lowing items.
* Check to confirm that the color image density sensor (image reg-
istration sensor F) and the black image density sensor (image
registration sensor R) are clean.
* Check to confirm that the image density sensor calibration plate
is clean.
* Check to confirm that the transfer belt is clean and free from
scratches.
Item/Display
Content
Adjustment
range
Default value
1
TC1
T1 LO CL K
Primary transfer bias
adjustment value
Color mode
K
Low speed mode
0 to 255
95
2
T1 MI CL K
Middle speed mode
0 to 255
146
3
T1 LO CL CMY
CMY
Low speed mode
0 to 255
139
4
T1 MI CL CMY
Middle speed mode
0 to 255
186
5
T1 LO BW K
Black/White mode
K
Low speed mode
0 to 255
95
6
T1 MI BW K
Middle speed mode
0 to 255
146
1
TC2
T2 PLN CL S
Secondary transfer bias
adjustment value
Color mode
Standard
paper mode
Front surface mode
0 to 255
103
2
T2 PLN CL D
Back surface mode
0 to 255
96
3
T2 PLN BW S
Black/White mode
Front surface mode
0 to 255
90
4
T2 PLN BW D
Back surface mode
0 to 255
83
5
T2 HEV1 CL S
Color mode
Heavy paper
mode
Front surface mode
0 to 255
83
6
T2 HEV1 CL D
Back surface mode
0 to 255
76
7
T2 HEV1 BW S
Black/White mode
Front surface mode
0 to 255
76
8
T2 HEV1 BW D
Back surface mode
0 to 255
69
9
T2 OHP CL
Color mode
OHP
0 to 255
69
10
T2 OHP BW
Black/White mode
0 to 255
69
11
T2 ENV CL
Color mode
Envelope
0 to 255
69
12
T2 ENV BW
Black/White mode
0 to 255
69
13
T2 THIN CL
Color mode
Thin paper
0 to 255
96
14
T2 THIN BW
Black/White mode
0 to 255
90
15
T2 GLOS CL
Color mode
Gloss paper
0 to 255
83
16
T2 GLOS BW
Black/White mode
0 to 255
76
1
TC2
CLEA
N
T2 MNS CLEAN
Secondary transfer
cleaning bias adjustment
value
Cleaning mode (-)
0 to 255
59
2
T2 PLS CLEAN
Cleaning mode (+)
0 to 255
119
3
T2 COUNTER
Counter (+)
0 to 255
119
4
T2 BTWN LO
Low speed print mode (+)
0 to 255
0
5
T2 BTWN MI
Middle speed print mode (+)
0 to 255
0
