[CQ] IRC2620 Intermittent , multi-color background

[Digicomm]

I have a Canon IRC2620 great CQ. However when I run say 1000 copies (doesn't matter if it,s B&W or Color). I get a rainbow of colors on the 1/4 in at the top of the paper for @2,3 or 4 sheets out of @ 100 images , then it goes away. This happens consistently. Any ideas. Thank's John

[teckat]

Re: IRC2620 Intermittent , multi-color background

I have a Canon IRC2620 great CQ. However when I run say 1000 copies (doesn't matter if it,s B&W or Color). I get a rainbow of colors on the 1/4 in at the top of the paper for @2,3 or 4 sheets out of @ 100 images , then it goes away. This happens consistently. Any ideas. Thank's John

when was the last time u removed the ITB UNIT/ ???

that large metal plate is probably the issue/ remove and clean inside bottom >>>

I usually throw them in the garbage///

but u need to keep the small plate on >with varistor ends connected> u can wedge loose end #2 under metal leaf spring..

click to see pic----ITB_Varistor.jpg

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

Thank's, I'll give it shot. John

[zoraldinho]

Re: IRC2620 Intermittent , multi-color background

Teckat have a point but to be shore we need to see a picture.

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

I'll send a picture of the CQ Problem, this afternoon . Thank's John.

[Dan Dryer]

Re: IRC2620 Intermittent , multi-color background

I have a Canon IRC2620 great CQ. However when I run say 1000 copies (doesn't matter if it,s B&W or Color). I get a rainbow of colors on the 1/4 in at the top of the paper for @2,3 or 4 sheets out of @ 100 images , then it goes away. This happens consistently. Any ideas. Thank's John

From your description, it sounds like the Transfer Cleaner Blade needs replacing. Part number for the assembly is FG6-8989-030.

The 'rainbow of colors' are probably the patches layed down on the ITB during Auto Gradation adjustment.

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

I removed the ITB plate and vacumed out excessive toner in that area. We are going to run a color copy job of @ 1,000 color copies. W'ell see !. As far as providing a sample of the problem,we currently don't have the scanner to do so ,but if the problem shows up again I can go to someone who has that scanning capability. I'll be in touch one way or the other,after we run this job. Thank's for all of the responses. John

[teckat]

Re: IRC2620 Intermittent , multi-color background

I removed the ITB plate and vacumed out excessive toner in that area. We are going to run a color copy job of @ 1,000 color copies. W'ell see !. As far as providing a sample of the problem,we currently don't have the scanner to do so ,but if the problem shows up again I can go to someone who has that scanning capability. I'll be in touch one way or the other,after we run this job. Thank's for all of the responses. John

did u get rid of that large plate, like I posted

u also need to remove all drums/all toners/the ITB Unit/and the ITB cleaning blade>

to look inside printer >
>at the rail cleaning blade unit slides onto/ that area accumulated waste toner & needs to be cleaned/& vacuumed out

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

Yes ,I completely removed the large plate and attached the lead to the metal spring as you suggested and vacumed it all out. No I didn't do the other 2. Once we run the long copy job, we see where we stand. Thank You.

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

I had to replace the large plate.When the copier went to Adj. Gradation, after 100 copies it had multi color background on the next 50 pages, usually it happens only on the next three. I have downloaded samples, but can,t figure out how to link them to copytechnet. Could somone provide instructions on how to link. Thank's John

[teckat]

Re: IRC2620 Intermittent , multi-color background

Just to make sure:
is background issue for glass copies only ?
or also on network prints ??? & or/on a PG6 test print /

is a fiery connected ??





Turn off PASCAL in service mode. Run CCD AUTO ADJ. Turn PASCAL back on. Exit service mode and complete a FULL Auto-gradation.

Check the salt sensor for proper installation or any pinched wires.


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[assets]

Re: IRC2620 Intermittent , multi-color background

I just had a similar problem on a 5045 and the drums were at 128% replacing them solved the problem

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

Here's two images. It happens both on the glass and from the printer. After it goes thru "auto gradation". . Thank's John. [ATTACH]17709

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

All the drums are under 60%, except for the cyan it's @ 152%. I also ordered a Xfer cleaning blade . Thank's for all of the replys. John

[Digicomm]

Re: IRC2620 Intermittent , multi-color background

No Fiery