[Misc] IR C5250 Getting "Rainbow effect" on color prints/copies

[Upnorthrgt]

Hello,
I have no error codes. I am getting a "rainbow effect" over entire page on color copies/prints.
Appears to be spilling toner onto developer
Developer / drums are covered with moderate dusting of toner (all 4 colors)

Any help is greatly appreciated.

[WLIT]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Have a sample pic? Can you be a little more descriptive of the symptom? Thanks

[Tricky]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Check the waste toner feed screw.

[Upnorthrgt]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Sure! Thanks for the reply.

Prints fine in B/W
prints or copies in color "smear" a "rainbow effect" over entire page.

Toner seems to be "spilled" and scattered over all 4 drums

Uploading photo...

Site not cooperating to upload image

[Upnorthrgt]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

20210129_112032.jpgprints 20210129_112033.jpg

[Phil B.]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Hello,
I have no error codes. I am getting a "rainbow effect" over entire page on color copies/prints.
Appears to be spilling toner onto developer
Developer / drums are covered with moderate dusting of toner (all 4 colors)

Any help is greatly appreciated.

what are the life counts on the devs/drums/belts/fuser?

look to be the ITB cleaning unit

[Upnorthrgt]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

I have removed and cleaned the ITB and the Cleaning blade
No change in copy quality


20210129_122907_resized.jpg20210129_122923_resized.jpg20210129_122934_resized.jpg

[Phil B.]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

[ATTACH=CONFIG]48086[/ATTACH][ATTACH=CONFIG]48087[/ATTACH][ATTACH=CONFIG]48088[/ATTACH]

like I said the ITB cln blade has expired ..so has the waster toner bottle.. hence the back up in the system

replace parts clear the counters

[WLIT]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

I would replace all drums and adjust gradation. Be sure to perform DPC (drum potential control) under Function in Service mode. If I'm misremembering then the adjustment for new drums might be under Install, under Function in Service Mode.

[copier tech]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

[ATTACH=CONFIG]48085[/ATTACH]prints [ATTACH=CONFIG]48084[/ATTACH]

Crappy compatible toner.

[Upnorthrgt]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Crappy compatible toner.

Using Genuine Canon Toner

[mga]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Hello,
I have no error codes. I am getting a "rainbow effect" over entire page on color copies/prints.
Appears to be spilling toner onto developer
Developer / drums are covered with moderate dusting of toner (all 4 colors)

Any help is greatly appreciated.

Replace all drums

[Upnorthrgt]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

like I said the ITB cln blade has expired ..so has the waster toner bottle.. hence the back up in the system

replace parts clear the counters

Has a fairly new canon waste toner bottle. Only 2500 copies since rplaced.
Apparently the counter wasnt reset.

Will install a new ITB cleaning blade and see.

Thx for the help!

[mga]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Has a fairly new canon waste toner bottle. Only 2500 copies since rplaced.
Apparently the counter wasnt reset.

Will install a new ITB cleaning blade and see.

Thx for the help!

If the black prints are OK it's more likely to be drums as they at the end of there life start there

[copier tech]

Re: IR C5250 Getting "Rainbow effect" on color prints/copies

Has a fairly new canon waste toner bottle. Only 2500 copies since rplaced.
Apparently the counter wasnt reset.

Will install a new ITB cleaning blade and see.

Thx for the help!

Simply take out the ITB unit is it covered in toner or clean. If clean this is not the issue.