[Misc] 4002i / 5002i / 6002i toner section grinding noise

[ngable20]

Hey all


We have several models of this series making grinding noise in the toner hopper area. We have heard there are certain bulletin/QA's that might address this problem but have not been able to locate them on KDA / Copystar Central service portal. Does anyone know which QA might address this, Any help?

[GeneOR95]

Re: 4002i / 5002i / 6002i toner section grinding noise

What immediately comes to mind is QA .2ND-0006(G127). If you moved these machines without removing the waste toner bottles you will have a ton of work to repair them all.

"In case of moving or transporting the machine without fixing the waste toner box (the waste toner box is kept in the machine), due to the vibration when moving, the frame might be deformed"

[ngable20]

Re: 4002i / 5002i / 6002i toner section grinding noise

Good thought, we have dealt with that issue before and it doesn't seem to be that.

[djs9164]

Re: 4002i / 5002i / 6002i toner section grinding noise

What immediately comes to mind is QA .2ND-0006(G127). If you moved these machines without removing the waste toner bottles you will have a ton of work to repair them all.

"In case of moving or transporting the machine without fixing the waste toner box (the waste toner box is kept in the machine), due to the vibration when moving, the frame might be deformed"

The waste toner forwarding unit on the drive unit will get bound. Needs to be empties and cleaned. Verify with U030 main motor test. Look under service Navi for the bulletins for this machine.

Sent from my XT1635-01 using Tapatalk

[kjg]

Re: 4002i / 5002i / 6002i toner section grinding noise

We have had only a few and it was either right after toner was replaced or on setup of equipment. I noticed that the toner drive was turning but the bottle had stopped turning. I put some pressure on the bottle close to the drive and the noise stopped AND the bottle would turn (I removed the covers to get a better view).
I replaced the toner bottle with a new one in all instances and the noise went away. I am trying to see if the bottles get a slight deformation in them that causes the bottle to shift away from the drive just enough to stop them from turning. I really can't see what is wrong with the bottles but as I said, in all instances replacement of the toner with a new one corrected the loud grinding noise.

As for the waste toner bottles, My thoughts are they should not be shipped pre-installed in the equipment. I replaced several right out of the box because they wouldn't stay in. After they were replaced, they didn't give me any issues. We did replace about 3 waste toner assemblies early on for similar issues but now I wonder if that measure was really necessary.

[Kidaver]

Re: 4002i / 5002i / 6002i toner section grinding noise

I've come across techs who forget to take the plug out of a new dev unit's entry port backing up the toner and causing issues.

[mickeyc123]

Re: 4002i / 5002i / 6002i toner section grinding noise

I've had two of these machines with waste toner blockages, both had around 400K on them.

On both, the augur in the waste toner assembly had ceased. found compacted waste toner blocking the augur from turning. it was as hard as rock and the size of small stone chippings.

I had to remove the main drive unit and detach the waste toner assembly from the back of that to clear it out completely.

One of the machines started straight into a C2810 - Waste toner motor error. The other was just grinding on the augur gear.

once the waste toner assembly was cleared the machines have been working away without issue.

just something to keep in mind with this model/family. we are using genuine toner and the machines are in clean, warm offices.

[Tonerkiller]

Re: 4002i / 5002i / 6002i toner section grinding noise

Hey all


We have several models of this series making grinding noise in the toner hopper area. We have heard there are certain bulletin/QA's that might address this problem but have not been able to locate them on KDA / Copystar Central service portal. Does anyone know which QA might address this, Any help?

2ND-0092 (I059) This is the bulletin that you are looking for.

[campy]

Re: 4002i / 5002i / 6002i toner section grinding noise

Is this waste toner a serious problem? I am considering buying one for resale but don't want a nightmare waiting to happen. I looked at the tech pub and it looks like a nightmare.
Have they been generally a good series?

[JR2ALTA]

Re: 4002i / 5002i / 6002i toner section grinding noise

It's a fine model but the waste system is complicated. Any clog can backup into the transfer belt and main drive of the machine. It doesn't take long for these clogs to compact and become charcoal. Of course at this point we have extremely loud gear skipping. The waste drive is borrowed from the paper feed assy so it can be confusing at first as to the source of the binding.

I would not use empty K toner as a waste bottle. It's designed to work that way but I don't trust it.

[KYO_OEM]

Re: 4002i / 5002i / 6002i toner section grinding noise

Instead of KYO bulletin 2ND-0092 (I059) sometimes my own solution can be helpfull.
(Takes not so much time, easier work...)
Regarding waste toner stucking, change WTB unit, since rev. 3 /(302ND94223) it`s solved.
The amount of claims regarding this issue decreased dramatically.

[ngable20]

Re: 4002i / 5002i / 6002i toner section grinding noise

Update on this thread,

No solution found yet.

I believe the problem both of the bulletins provided by kyocera are only related to toner drive unit and that is not where we are have grinding. The grinding is coming from the waste auger unit going to the waste toner bottle, hardened toner locks the auger up and it grinds as the main drive unit tries to push the gear of the auger unit.

We are constantly having to go back (every 2 weeks to 2 months) to the same locations (about 10 or 12 in all) replacing waste toner augers and Transfer belts since it seems that the hardened toner is coming from the belt and hardening in the exit of the transfer belt.

Anyone else having these problems? What are your solutions?

[blackcat4866]

Re: 4002i / 5002i / 6002i toner section grinding noise

If you have fused toner in the cleaning augers, I would suspect that the internal temperature (and perhaps outside temperature also) is too high. I would check fan filters, fan direction (pointed the right way), and fan operation.

Years back we had a bunch of Canon NP-6050 series analogs that the toner in the drum cleaning unit would fuse solid and break the gears on the front of the drum cleaning unit. Removing the ozone filters was not quite enough. On a few machines I took the large two-speed fan in the bottom of the machine and tucked it away in a corner (the controller board monitors the current to that fan and would error out if the fan was disconnected), then I installed a high speed muffin fan 100vac into the main duct. The new fan was wired to run whenever the main switch was on. Other than being a little noisy it solved the issue. Later on Canon came out with a mod circuit board to put in line with the original fan to run at high speed most of the time (like mine).

[toddanderson]

Re: 4002i / 5002i / 6002i toner section grinding noise

did you replace both the WTB unit waste box assembly and the inter unit ( unit attached to the back of the main drive)
replace both at the same time

Update on this thread,

No solution found yet.

I believe the problem both of the bulletins provided by kyocera are only related to toner drive unit and that is not where we are have grinding. The grinding is coming from the waste auger unit going to the waste toner bottle, hardened toner locks the auger up and it grinds as the main drive unit tries to push the gear of the auger unit.

We are constantly having to go back (every 2 weeks to 2 months) to the same locations (about 10 or 12 in all) replacing waste toner augers and Transfer belts since it seems that the hardened toner is coming from the belt and hardening in the exit of the transfer belt.

Anyone else having these problems? What are your solutions?

[nathicana]

Re: 4002i / 5002i / 6002i toner section grinding noise

I'll chip in on the waste toner clogging. The toner hopper noise is addressed in a bulletin.

The problem usually begins when the waste container stops rotating. The user forces the container in wrong or too hard and the housing of the WTB unit gets spread apart at the very rear of the machine. You can see it if you look carefully but it takes a trained eye. Replacing the WTB unit fixes the non rotation but there is another, easier way.

Replace the clogged waste toner assembly on the main drive unit along with the pf drive section gear that breaks. Then run the machine with the waste toner door open to check if the waste container is turning. It probably won't be.

Remove the paper drawer so you can get to the sheet metal beside the waste container from inside the machine. Reach all the way to the rear and give it a thump and the WTB unit will pop back into place. Verify the waste container is turning before you leave these machines.