BizHub C554e transfer belt issue

[printprocc]

Hello all,
Having an odd issue with my transfer belt. Ran a few thousand prints on 80gsm stock which ran fine. Switched over to 189gsm and ran a business card job on 12 x 18. Very short run, only 18 sheets or so, full coverage. That ran fine as well but the next job put on, also on same weight now has these dots that appear on the prints. I was able to narrow it down to the transfer belt but am bewildered as to how or what caused this. The belt housing is clean and all rollers are smooth. It appears that these go from the inside out. New belt is coming but I would like to avoid a repeat if possible. Thoughts??
Pictures included.

[FuserNoob]

Was the card stock you used for the business cards perforated?

[Synthohol]

looks like one of the steel roller shafts had a chunk on it, the braille on the belt, they run feed direction? at first it looked like someone slammed the door hard maybe after a jam and the comb electrode above the 2TX roller pierced the belt all across it. but if in FD the pattern is too regular to not be internal shaft related.
i would be in shock if it happens again to the new TBU.

[tsbservice]

+1 to toner clumps on inside rollers.

[printprocc]

Thanks for the VERY quick replies!!!
Paper stock was smooth cover.
Belt assembly is still apart and I can't see or feel ANYTHING wrong. I took thought there must be some sort of metal burr or whatever causing it but I have not only cleaned all the steel inside, I felt each surface completely, before and after cleaning and couldn't find anything.
Yes the pattern runs in the feed direction however it is NOT a constant pattern in that dot pattern is very tight and seemingly perfectly repeated much like an actual perforation blade would do in a bindery machine, HOWEVER as you go from non op side of the machine toward the op side, the rows of dots get closer together and then spread out again. Also this pattern is NOT in a straight line in the feed direction but is at a small angle, maybe 10° or so and it never crosses itself.

[printprocc]

A couple of extra pictures. Phone is being held perpendicular to the page edge so you can see the angle. You can also see the pitch change.

[printprocc]

Here is another picture of belt fully reassembled. Hoping to show direction of travel and such.

[Synthohol]

Here is another picture of belt fully reassembled. Hoping to show direction of travel and such.

WOW! thats Superfucked.
last time i saw the diag pattern like that is when the bead on the side of the belt peeled off and rolled around inside the belt and made convex lines.
either way that belt is all done for this world, i wouldnt want it chafing up my drums or 2TXR.

[printprocc]

HAHAHAHAHAHA!!! I knew there was a term for this! You nailed it lol.

Ok so im happy to be the one coming in with weird shit to fix. NOT. Im just going to replace the belt when it comes in and cross my fingers this doesn't repeat. Thank you all for your help!!

[blackcat4866]

WOW! thats Superfucked.
last time i saw the diag pattern like that is when the bead on the side of the belt peeled off and rolled around inside the belt and made convex lines.
either way that belt is all done for this world, i wouldnt want it chafing up my drums or 2TXR.

To get a pattern like that there must be uneven tension on the belt, causing it to buckle. A new assembly will solve that. It was a lot more common on the older machines that had an inner rib on the edge of the transfer belt, like Syth describes. It would start to peel off, eventually wrapping around one of the facing rollers, and making a disaster.

[printprocc]

To get a pattern like that there must be uneven tension on the belt, causing it to buckle. A new assembly will solve that. It was a lot more common on the older machines that had an inner rib on the edge of the transfer belt, like Syth describes. It would start to peel off, eventually wrapping around one of the facing rollers, and making a disaster.

Well, that does sound like a possibility however slight. That will be the next thing to replace!