C550 color registration

[mrfuser]

Black looks great, color off just enough to make you think you been drinking a bit too much.

any ideas?

[mo0651]

Re: C550 color registration

What steps have you taken? Single copy? Multi-page run?

[allan]

Re: C550 color registration

You forgot to mention the P-31 code you are getting.
The encoder disk on the K drum drive is probably soiled.

Don't think of cleaning it get a new encoder disk. Or rather a complete new drive.
Good luck its a fun job.

[mrfuser]

Re: C550 color registration

No P31 but we saw a p21

[allan]

Re: C550 color registration

Then it could be an IDS problem bad ITB or dirty ID sensors.

[emujo]

Re: C550 color registration

Do a print head skew reset then power cycle, this usually gets rid of color reg problems that are not caused by IU/ITB problems. Emujo

[Woxner]

Re: C550 color registration

clean the reg sensors and do an intialize and reset.

[mrfuser]

Re: C550 color registration

Where are the sensors that I need to clean?

[Woxner]

Re: C550 color registration

open the right door and remove the belt. the two sensors are located on the black plate just under where the belt sits. move the shutter and blow air in them

[mrfuser]

Re: C550 color registration

Still getting p-14. Any thoughts?

[Woxner]

Re: C550 color registration

after you clean the sensors did you do and initialize and reset and maybe even gradation. if not you made no changes.

[Woxner]

Re: C550 color registration

if you did not do the initialize and reset after cleaning then you did nothing. do the resets.

[mrfuser]

Re: C550 color registration

This thing is crazy. I go and run everything through that has been suggested and nothing seems to work.
i then do a color registration in utility mode and adjust cyan, then all looks ok. I leave and a week later reverts back to color registration off.

Amy other ideas?

[kingarthur]

Re: C550 color registration

This thing is crazy. I go and run everything through that has been suggested and nothing seems to work.
i then do a color registration in utility mode and adjust cyan, then all looks ok. I leave and a week later reverts back to color registration off.

Amy other ideas?

[westvandude]

Re: C550 color registration

The C550 had further issues had all kinds of errors. Eventually I replaced the PSU board and all was well.... for about a year. Now I've got P31 again. This thing is driving me nuts. Have another tech coming by today hopefully we can check that K sensor disc as well as cleaning belt sensors.

But it's now telling me the right side door is open (which it isn't) and the paper transport behind that door is making a noise like it's trying to pickup a sheet of paper. Display is going nuts too, it alternatives between error and std screen like a flashing signal light. It's out of it's mind. Reset/initialization don't change anything.

It had the occasional (right door open) problem before. Then I put in a new yellow IU. After it cleaned/stabilized and got ready, door problem went nutso.

I have a spare C451 I can rob the PSU from however that one is working semi-ok but no finisher so for my big folded/stapled print jobs it's useless. Works ok for our product labels tho. If simple fixes don't work I guess I'm looking at another PSU board replacement.