Canon iRC9060 Pro

1. Scraches on the ITB
2. Failure of the photosensitive drum
3. Noise due to contact failure of the ITB guide (The ITB unit is not installed correctly.)

1. Check whether the color image is formed correctly for 4 colors.

a. Perform test print in the following condition. COPIER>TEST>PG>TYPE: 5 Output one sheet for each color in the paper of LTR/A4/A3 size (more than 290mm in a horizontal scanning direction).

b. Check the following points.

• Check whether the image is formed in the printing field except a margin. Check whether the image density is not low.
• Check whether an unexpected image is not formed. If a correct image is not formed, check the following points.
• Developing assembly: Check whether dirt is not applied to the developing.
• Drum: Check whether dirt is not applied to the drum. Check whether there are no scratches on the drum.
• ITB cleaning unit: Check whether an ITB cleaning failure has not occurred. (Check whether the previous image does not remain.)
• Check whether there are a lot of scratches or dents on the ITB or not. Based on the checking results and frequency
  of occurrence of the alarm, make a judgment of whether or not to replace the corresponding parts.

Movement: None

Cause:

The image position correction patch pattern cannot be detected at all. Failure of the patch sensor Failure of the shutter Image failure 1.
1. Check whether the color image is formed correctly for 4 colors.

a. Perform test print in the following condition. COPIER>TEST>PG>TYPE: 5 Output one sheet for each color in the paper of LTR/A4/A3 size (more than 290mm in a horizontal scanning direction).
b. Check the following points.

• Check whether the image is formed in the printing field except a margin. Check whether the image density is not low.
• Check whether an unexpected image is not formed. If a correct image is not formed, take measures to be taken for prevention of an image failure. (Check the developing assembly and drum unit.)
• Developing assembly: Check whether dirt is not applied to the developing.
• Drum: Check whether dirt is not applied to the drum. Check whether there are no scratches on the drum.
• ITB cleaning unit: Check whether an ITB cleaning failure has not occurred. (Check whether the previous image does not remain.)
• Check whether there are a lot of scratches or dents on the ITB or not. Based on the checking results and frequency of occurrence of the alarm, make a judgment of whether or not to replace the corresponding parts.

2. Damage or dirt of/on the patch sensor

a. Check whether the shutter of the patch sensor operates correctly.

b. Check whether dirt is not applied to the patch sensor. If dirt is applied, clean the sensor surface with alcohol. After cleaning, execute patch light intensity correction and base correction (COPIER>FUNCTION>MISC-P>PT-LPADJ).

c. If the problem is not eliminated even after cleaning, replace the registration patch sensor unit.

d. Check whether shorting has occurred to the patch sensor harness. If it occurred, replace both of the harness and the DC controller interface PCB. (It is necessary to replace the PCB because the DC controller interface PCB burns when shorting occurs.)