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
2T1 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
6T1 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
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