c253 help

[Frostwolf]

It was working with new PRCB when I left work on Tuesday, I've been at home getting a new roof and remodeling done since then. The guys are supposed to be checking it regularly. Yeah....

I'll let you know if it fails. But all looks good. Darn strange one for screwing with first four inches.

Now PRCB fixed the image problem, the original code was fixed with the update listed earlier, or updated transfer belt.

[bigmark]

just had similar problem on a C550 copies looked exactly the same. upon inspection, it was the K transfer roller was not being seated close enough to the K drum unit. (in my case it had fallen out of the socket on the front edge) in your case, there is a chance that the rail may have been damaged that the belt sits on when it was put in wrong. I would start inspecting that front half of the rail and checking for burs, or cracks in that plastic rail. once first copy comes through, the tension might be enough to get it into place, then once it goes into rest mode (no pressure on rollers) its not seated correctly again.

[Haroldbfix]

just had similar problem on a C550 copies looked exactly the same. upon inspection, it was the K transfer roller was not being seated close enough to the K drum unit. (in my case it had fallen out of the socket on the front edge) in your case, there is a chance that the rail may have been damaged that the belt sits on when it was put in wrong. I would start inspecting that front half of the rail and checking for burs, or cracks in that plastic rail. once first copy comes through, the tension might be enough to get it into place, then once it goes into rest mode (no pressure on rollers) its not seated correctly again.

Very informative, Welcome aboard "BigMark"

[Frostwolf]

just had similar problem on a C550 copies looked exactly the same. upon inspection, it was the K transfer roller was not being seated close enough to the K drum unit. (in my case it had fallen out of the socket on the front edge) in your case, there is a chance that the rail may have been damaged that the belt sits on when it was put in wrong. I would start inspecting that front half of the rail and checking for burs, or cracks in that plastic rail. once first copy comes through, the tension might be enough to get it into place, then once it goes into rest mode (no pressure on rollers) its not seated correctly again.

That was inspected including frames, nothing was bent or out of place, and it only did it first copy. reboot the machine and only first copy was that way. after changing the prcb, with nothing being touched inside fixed it. It's still working fine now.

Thanks for the input though.

[masterteknicion]

Thanks for keeping this post updated. I had a customer call the other day for a 2152 code. I was able to reset it and got it working. Since I had a new tb on hand I replaced it. I noticed it didn't clear the counter though. Since it had only 20k on it, I left it. A couple of days later the customer called back for pcq on black. When I got their they showed me exactly what you had, I'm glad you scanned you image. Same thing it only did it on the first copy and the rest were fine. Their was a notice on SSD that says to replace the prcb when it doesn't clear the counter, well now I know it will take care of both of my problems.
Thanks again.

[tech51]

FYI its ICP5 that blows, rated at 2.5A. Replace that...Job done

[Frostwolf]

Thanks for keeping this post updated. I had a customer call the other day for a 2152 code. I was able to reset it and got it working. Since I had a new tb on hand I replaced it. I noticed it didn't clear the counter though. Since it had only 20k on it, I left it. A couple of days later the customer called back for pcq on black. When I got their they showed me exactly what you had, I'm glad you scanned you image. Same thing it only did it on the first copy and the rest were fine. Their was a notice on SSD that says to replace the prcb when it doesn't clear the counter, well now I know it will take care of both of my problems.
Thanks again.

Come to think about it, I never checked the counts on the Belt, it was a new machine, so the counts really weren't that much. If the problem comes back , I'll have to check ICP5.

Thanks

[copytechman]

ICP 5 on the prcb goes straight to source vdc for the xfer fuse? Please confirm.. I'm going to check of my shop machines out for that now. thx!
A.

[copytechman]

Edit command hangs up!!! Confirmed! Xfer fuse connector on prcb for c203 series is @ cn33 .. one side to icp 5.. 24vdc... other side i'm guessing is the sense side.. cn33 is not described in the schematic.. it shows the 24v side but not what other side does.. just has a * for a description.... nice...

Regards!
A.

[AjitN]

Good observation.


Although this looks like very interesting problem, very tedious to handle. As suggested please check the base where Belt rest surface for damage.
All the best and keep informed.
Ajit