MP C3003 - very unusual output

[sandmanmac]

Re: MP C3003 - very unusual output

Well....thanks to everyone for the advice.
As mentioned, the PCDU was not separated or replaced and their unit was tested and worked perfectly in another machine.
That said, when I got back to the site today and simply popped their original K-PCDU back in the machine with the intention of just seeing how the machine would behave with normal copying and printing, despite the unusual test pattern and skyshots....wouldn't you know it, it worked perfectly today - test patterns and all!
On one hand I'm happy that the issue is resolved, but it's always frustrating to me when I don't understand what the actual solution is.

My best guess may be that one of the last things I did yesterday was removing the belt unit, drums , fuser to look inside and see if anything was obviously wrong. I did actually remove a few tiny leftover shreds of the belt that I'd not seen before, and thought that I had probably resolved it, but there was no change.
It just left me wondering if by some chance the last time I removed the K-PCDU to take with me to test yesterday, that somehow another piece of the belt that I may have missed was cleared away from a contact plate or something- But I truly have no idea .

On the bright side, I'm able to invoice the customer for the repair, and it turned into quite a nice charge call to end the week, and they're happy as can be!

Thanks again for the help.
Cheers!

[blackcat4866]

Re: MP C3003 - very unusual output

I cannot claim experience with this specific model, but I have seen similar defects caused by charge related defects:
lint on the grid or wire
lint dragging through the latent image on the drum hanging from the grid

I'm glad you got it resolved. =^..^=

[luca72]

Re: MP C3003 - very unusual output

Well....thanks to everyone for the advice.
As mentioned, the PCDU was not separated or replaced and their unit was tested and worked perfectly in another machine.
That said, when I got back to the site today and simply popped their original K-PCDU back in the machine with the intention of just seeing how the machine would behave with normal copying and printing, despite the unusual test pattern and skyshots....wouldn't you know it, it worked perfectly today - test patterns and all!
On one hand I'm happy that the issue is resolved, but it's always frustrating to me when I don't understand what the actual solution is.

My best guess may be that one of the last things I did yesterday was removing the belt unit, drums , fuser to look inside and see if anything was obviously wrong. I did actually remove a few tiny leftover shreds of the belt that I'd not seen before, and thought that I had probably resolved it, but there was no change.
It just left me wondering if by some chance the last time I removed the K-PCDU to take with me to test yesterday, that somehow another piece of the belt that I may have missed was cleared away from a contact plate or something- But I truly have no idea .

On the bright side, I'm able to invoice the customer for the repair, and it turned into quite a nice charge call to end the week, and they're happy as can be!

Thanks again for the help.
Cheers!

COVER 19...LOL

[sandmanmac]

Re: MP C3003 - very unusual output

COVER 19...LOL

Wow!
Yup that's it!
So I'm guessing this was an issue BEFORE the rest of the Sh** hit the fan at this site, and just wasn't causing them any real day-to-day issues as their volume is way down during the renovations.
As I said, I never touched the K-PCDU other than to remove and re-insert it during this service - other than about a year-and-a-half ago when I replaced the entire unit with a low usage one.
It seems that somehow the contact inside the rear cover may be a little 'sketchy' and eventually just got seated a little better on the final try .
Anyway, thanks for this. It's an eye-opener, and I'll know exactly what to do should it come back!

[copier tech]

Re: MP C3003 - very unusual output

Wow!
Yup that's it!
So I'm guessing this was an issue BEFORE the rest of the Sh** hit the fan at this site, and just wasn't causing them any real day-to-day issues as their volume is way down during the renovations.
As I said, I never touched the K-PCDU other than to remove and re-insert it during this service - other than about a year-and-a-half ago when I replaced the entire unit with a low usage one.
It seems that somehow the contact inside the rear cover may be a little 'sketchy' and eventually just got seated a little better on the final try .
Anyway, thanks for this. It's an eye-opener, and I'll know exactly what to do should it come back!

I told you this was missing & causing your issue 3 days ago! 🤣

[sandmanmac]

Re: MP C3003 - very unusual output

I told you this was missing & causing your issue 3 days ago! ��

And I told you, and the entire forum at least 3 times that I never worked on the K-PCDU up to and including today,including in my last post...so pardon my tunnel vison, and tone down the rhetoric a notch.
It's entirely unnecessary!

[copier tech]

Re: MP C3003 - very unusual output

And I told you, and the entire forum at least 3 times that I never worked on the K-PCDU up to and including today,including in my last post...so pardon my tunnel vison, and tone down the rhetoric a notch.
It's entirely unnecessary!

[sandmanmac]

Re: MP C3003 - very unusual output

Let me to try and put this in terms you'll understand.
It wasn't...
and it never was, and I've still not done anything to that drum unit other than remove and reinsert. Do you understand now?

[copier tech]

Re: MP C3003 - very unusual output

Let me to try and put this in terms you'll understand.
It wasn't...
and it never was, and I've still not done anything to that drum unit other than remove and reinsert. Do you understand now?

The post was so long & boring I feel asleep before getting to the end!

[fshead]

Re: MP C3003 - very unusual output

hey SANDY

Anytime I get weird CQ like that I check all contacts,toner source,oem or china crap,and if all else fails I pull the laser unit and take it apart
and clean everything in and out..
Quirky drum contacts can be a pain to find but glad you figured it out.................