[Noise] CS 508ci Loud Noise

[Cosmortal]

Back in March I went out to a noise call on a 508ci. Its a loud almost machine gun type (gear?) snapping/clicking. After investigating a bit my associate and I found that vacuuming out the transfer belt cleaning system fixed it and we also found some of the toner in it was chunky if not rocky. We got the new one ordered and eventually installed. Recently (after 3 months) the sound has returned so we decided to bring it back to our shop and investigate the source of the issue since there is a pattern forming. We didn't notice any chunky/rockiness to the toner inside the belt this time. But I have noted on both visits that there is a decent amount of waste toner build up on top of the yellow dev where the waste toner dumps into the container. We have replaced the waste toner container on the first visit for this issue. Vacuuming the transfer belt again made the sound go away but we assume it will come back in a few months. So as of now we have opened it up and checked the gear/motor/assembly that drives the belt and also the gear that moves the waste toner in the belt. There isn't any obvious signs of wear or missing teeth and the belt drive assembly doesn't have any noise or issue when testing out of the machine. We are still digging into the machine and trying to make sure the toner supply isn't dumping too much into the transfer belt and clogging it up but we still haven't been able to pinpoint the source of the issue, especially since we don't have NSI parts nor another 508ci in the shop.

I called Tier 2 twice and they suggested checking for damage in the Transfer belt and also checking the Toner Supply Drive which is kind of what I already suggested to them.

Does any have any experience or suggestions about this issue?

There are no codes being thrown and we have noticed a slight oddity with the waste toner container(s) not behaving normally by either misreading or filling up quickly but have no real evidence of either and FW is up to date.

[Lunatech]

I have never worked on a 508. I have seen hundreds of 306, 307 and 308 models and had this scenario in a handful of them. I have gone down the same path you have described on a couple of them only to wind up replacing "302R494150 PARTS PIPE TR CLN ASSY SP". Now this is a very simple piece and for the life of me I can not see how it could malfunction, however, replacing it has resolved each case I have encountered. I have had this piece out of each machine and in my hand, cleaning, inspecting and comparing to the new one and still can't say with any certainty why it is a problem but as near as I can figure it is.
FWIW I hope this helps.

[Cosmortal]

I have never worked on a 508. I have seen hundreds of 306, 307 and 308 models and had this scenario in a handful of them. I have gone down the same path you have described on a couple of them only to wind up replacing "302R494150 PARTS PIPE TR CLN ASSY SP". Now this is a very simple piece and for the life of me I can not see how it could malfunction, however, replacing it has resolved each case I have encountered. I have had this piece out of each machine and in my hand, cleaning, inspecting and comparing to the new one and still can't say with any certainty why it is a problem but as near as I can figure it is.
FWIW I hope this helps.

Thanks for the direction! I pulled it off and can tell in the chute that the felt on one side is definitely protruding and potentially obstructing the waste toner flow. I will update if anything new comes up.

[Samanator]

Are you using Kyocera toner or Non-Kyocera toner?

[Cosmortal]

Are you using Kyocera toner or Non-Kyocera toner?

They have Kyocera toner.

[Dark Helmet]

I have never worked on a 508. I have seen hundreds of 306, 307 and 308 models and had this scenario in a handful of them. I have gone down the same path you have described on a couple of them only to wind up replacing "302R494150 PARTS PIPE TR CLN ASSY SP". Now this is a very simple piece and for the life of me I can not see how it could malfunction, however, replacing it has resolved each case I have encountered. I have had this piece out of each machine and in my hand, cleaning, inspecting and comparing to the new one and still can't say with any certainty why it is a problem but as near as I can figure it is.
FWIW I hope this helps.

Does this part mate with the waste toner?