Canon IR C2880i color registration is off

[Desert Rat]

I have not worked on this model for a couple of years. The color registration is off, I used the
Type 6 test print and was able to make a differencs, in the center of the print.
But the edges are not registered.
Looking at the print on the edge toward the back the colored lines are on the outside of the black
line and the front edge is the same, the colored lines are on the outside of the black line.
I have the book, but I don't understand how to make this adjustment.
This machine only has 75K total prints on the meter.
Any advice is welcome.

Thanks

DR

[teckat]

I have not worked on this model for a couple of years. The color registration is off, I used the
Type 6 test print and was able to make a differencs, in the center of the print.
But the edges are not registered.
Looking at the print on the edge toward the back the colored lines are on the outside of the black
line and the front edge is the same, the colored lines are on the outside of the black line.
I have the book, but I don't understand how to make this adjustment.
This machine only has 75K total prints on the meter.
Any advice is welcome.

Thanks

DR

================================================== ===============
First>
Clean the patch sensors and perform an Auto Color Correction Mismatch for the issue.

Addition Functions > Adjustments and Cleaning > Auto Color Mismatch Correction
Auto Color Mismatch Correction corrects Color Registration issues.
To perform an auto color correction mismatch, Enter Additional Functions Adjustments and Cleaning. On page three select auto color mismatch correction.
If Auto color correction mismatch is not an option, be sure to update the firmware to the latest version. To clean the patch sensors manually actuate the solenoid to open the shutters and wipe the sensors with a dry lint free cloth.

Below is a photo of the solenoid and shutters that cover the sensors.


Second IN>SERVICE MODE>
LEVEL 2> COPIER> FUNCTION> CLEAR> REG/ Highlight Reg/Clear and press OK.

Then do the Quick and Full Auto Gradation from control panel


Note*
Following the instructions above could prevent you from having to perform a DC-CON clear, and inputting all DC-CON values from the door label.

[teckat]

to add on reply

How old is your ITB UNIT ??? if old replace it

u could also have an issue with the ITB / Drum Drive Assembly

[Desert Rat]

Teckat,
Thank for that very detailed reply.
I will download this post for sure to use when I see this machine
Later today.

Thanks again

DR