Canon IRC5045 grainy print quality

[skibum]

I have a client with this machine printing sad grainy print quality. Can the secondary transfer roller do this. Currently the machine has ran only oem toner and has 500K on it and the secondary transfer roller. The ITB has 210K. Has anyone had this problem and can offer a solution. Thank you!

[BillyCarpenter]

Re: Canon IRC5045 grainy print quality

It would help if you could post some examples. Thanks.


What's the page count on the drum/dv?

I see that the transfer belt has a rated yield of 180K - your ITB has 210K on it. It needs to be replaced.

[Phil B.]

Re: Canon IRC5045 grainy print quality

I have a client with this machine printing sad grainy print quality. Can the secondary transfer roller do this. Currently the machine has ran only oem toner and has 500K on it and the secondary transfer roller. The ITB has 210K. Has anyone had this problem and can offer a solution. Thank you!

grainy usually means developer power -or- incompatible toner.

does the print rub off?

what type media are they using?

whats the count life on the developer units?

[Drivee]

Re: Canon IRC5045 grainy print quality

Whole print -all colours is grainy?
Can you post photos of print samples?
If DEV units are not changed, please change.

[Venom]

Re: Canon IRC5045 grainy print quality

The charge rollers and secondary transfer roller in ITB unit will cause that with age.

[skibum]

Re: Canon IRC5045 grainy print quality

The Developer units have 50K on them all. The grainy print quality is all colors. All drums have 60K.

[Hishamawada]

Re: Canon IRC5045 grainy print quality

Hello,

There is several causes for this issue.

If issue is common on all colors:
1) It could be media issue
2) Secondary transfer roller , inner and outer
3) Itb belt
4) Developer becoming weak
5) Primary transfer roller under the itb for each color
6) It could be a Voltage board issue.

First try different media , such as glossy.

I can suggest you to adjust the secondary transfer voltage in the service mode and check if the results improve.

Also try adjusting the Primary transfer voltage for each color.

Please add some photos to be able to better work on your issue. PG tests for each color alone on halftone 128

Best Regards

[skibum]

Re: Canon IRC5045 grainy print quality

I ran a stop test with test PG 10 pattern (stripes of all colors similar to calibration mode) paper was 1/3 into the fuser unit. I pulled the ITB assembly and found the area on itb belt that is pre transfer the stripes were solid looking. The part of the image that had already transferred was incomplete transfer coming from the secondary transfer outer unit on the door. I am going back tomorrow with a new outer transfer roller and springs (Small set, one missing, if looking into the open right door on the left side of the opening where the outer secondary transfer roller is located the missing spring is located under the black frame of the transfer roller assembly) I will follow up after replacing the secondary outer transfer roller and the springs.