Mitsubishi Electric CP-D70DW, Service Manual

Page: 72 / 93

- 3 -
4. Adjustment of M3 motor Duty
This item is used to adjust the tension to the ink ribbon caused by the variation of the M3 motor.
In case of an adjustment failure, the tension to the ink becomes insufficient, as a result,wrinkle is happend in the printed
image.
Adjustment procedure
1. M3 motor duty adjustment
Set the adjustment value using the Adjustment of M3 motor Duty in the service application. Input the M3 motor duty value
specified in the sheet supplied with the M3 motor.
5. Adjustment of Ink-black mark sensor
This item is used to adjust the sensor sensitivity of the ink ribbon.
In case of an adjustment failure, ink ribbon markings cannot be determined, resulting in the ink-related error.
Adjustment procedure
1. Printer settings
Remove the ink ribbon from the printer and close the door.
2. Adjusting the sensor of black marking for ink
Adjust using the Adjustment of Ink-black mark sensor in the service application.
6. Adjustment of vertical print position
This item is used to adjust the vertical position of the printed image and the amount of the margin cut. In case of an
adjustment failure, a white horizontal line appears on the top or bottom of an image (edge of an image isn’t printed), or a
paper jam occurs due to the margin cut.
Adjustment procedure
1. Printing images before adjustment
Before adjusting the printing position, perform the Feed&Cut using the service application.
Print two sheets of a solid gray pattern continuously in 10x15 (4x6”) size using the Adjustment of vertical print position in
the service application.
2. Checking the margin cut before adjustment
This adjustment is not necessary when the margin cut of two sheets is as follows.
Approx. 1 mm [B]
Approx. 1 mm
Approx. 1 mm
Approx. 4mm [C]
Approx. 4mm [A]
Second printing
First printing
Margin cut
Margin cut
* When the margin cut isn't performed properly, adjust the following items.
3. Adjusting the amount of the margin cut
Adjust the following parameters using the printing position adjustment (vertical) menu in the service application.
• First print (blank length) ......................Measure the length of Area [A] and input the Measured value.
• Second print (margin length) ..............Measure the length of Area [B] and input the Measured value.
• Second print (blank length) .................Measure the length of Area [C] and input the Measured value.