Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

[Tech Helpdesk]

Hi everyone,

Has anyone got a definitive fix for the waste toner clogging on the above models. When we get a call for 'machine gunning' noises on these models we know we are going to have to vac out / replace any of the following parts, waste box L assy, transfer belt, paper feed drive assy.

We all know the part numbers keep changing but the problem normally re-appears after 12 months or so. We have tried OEM toners and compats but we still get rocks in the waste system.

Any ideas ?

[taskalfaman]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

hi,
When it is clogged, you first have to look what the reason is,
and check what the final solution, which part is infected.
my opinion: => parts which can be infected
is the wtb turning? => wtb unit (complete section), and calibrate correctly
is the cleaning waste toner clogged => changed
is it making noise ( cleaning spiral) => change feed drive unit
is the tr belt clogged? change Tr belt
are one of the drum cleanings clogged? change dk.

I never had one device which was infected for the 2nd time.
if you replace all parts correct, everything should be ok
and check if toner is original, this avoids lots of trouble.


have fun.

[dalewb74]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

if you have had the problem why would you even consider compats? where is the actual toners stored at the location or stored before the customer receives them? surely they are doing the ole shake method.

[Tech Helpdesk]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

hi,
When it is clogged, you first have to look what the reason is,
and check what the final solution, which part is infected.
my opinion: => parts which can be infected
is the wtb turning? => wtb unit (complete section), and calibrate correctly
is the cleaning waste toner clogged => changed
is it making noise ( cleaning spiral) => change feed drive unit
is the tr belt clogged? change Tr belt
are one of the drum cleanings clogged? change dk.

I never had one device which was infected for the 2nd time.
if you replace all parts correct, everything should be ok
and check if toner is original, this avoids lots of trouble.


have fun.

Hi and thanks for the reply,

We originally put the issue down to compat toners , but since going back to OEM (18 months now) we still have them fail even with the updated parts fitted. It seems to be a design weakness to me and either the machines run too hot internally or the waste system is too slow causing the toners to clump and ultimately harden then clog up.
The lesser models have no filter on the back so we cannot blame clogged filters for the interior heat.

I just wondered if others have tried modifying the waste drives ?

[PrintWhisperer]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

hi,
When it is clogged, you first have to look what the reason is,
and check what the final solution, which part is infected.
my opinion: => parts which can be infected
is the wtb turning? => wtb unit (complete section), and calibrate correctly
....


have fun.

Checking that the bottle turns is key and failure leads to the majority of back-ups in this system. There was the 'hanging foam' that would obstruct rotation, but there is a more severe issue which often goes un-noticed.

The essential piece is actually the Waste Toner Box assembly, which has 2 halves, an upper and a lower.
The halves are connected by about 6 plastic hook and clip sections.
The rear right clip (closest to the bottle drive gear) will become unclipped, and allow the bottle to move away from the drive gear.
This 'unclipped' state will also misalign the waste shute inlet from the waste auger assembly, leading to clogging there.

There are 4 bulletins regarding other modifications to the waste system which have serial number cut-ins for applicability to your units.

QA_I196 (Most comprehensive, spring deformation and drive irregularity)
QA_I052-Waste scraper change
QA_I229-Disuse of Box slider note
QA_J213-Box change (Guide rib added)

[KYO_OEM]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

I think the problem is more complicated.
The weight of the waste toner is higher than that of the toner.
The toner is delivered in a sealed container and just fed to the back.
The waste toner, however, has absorbed paper dust and moisture from the air and therefore no longer flows as easily as the toner.
We have the same transport ribs in the waste toner container as in the toner container, however, which can no longer transport this heavier waste toner to the front.
It stacks and the problem will appear.
This usually happens at about 650 grams/ at 800g the bottle would be full.
When using paper with a high abrasion and / or high humidity, there is a greater risk that it will happen.
It starts to be a nightmare since KYO decided to disuse the waste toner full sensor in 2018
Bulletin 2ND-0093(I069)

[Tech Helpdesk]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

I think the problem is more complicated.
The weight of the waste toner is higher than that of the toner.
The toner is delivered in a sealed container and just fed to the back.
The waste toner, however, has absorbed paper dust and moisture from the air and therefore no longer flows as easily as the toner.
We have the same transport ribs in the waste toner container as in the toner container, however, which can no longer transport this heavier waste toner to the front.
It stacks and the problem will appear.
This usually happens at about 650 grams/ at 800g the bottle would be full.
When using paper with a high abrasion and / or high humidity, there is a greater risk that it will happen.
It starts to be a nightmare since KYO decided to disuse the waste toner full sensor in 2018
Bulletin 2ND-0093(I069)

Hi Kyo, thanks for the info and I must agree removing the full sensor wasn't the best idea ! Looking at the machine running the waste bottle only rotates for 5 seconds then stops, then later it will energise for a further 5 seconds, I am going to look at having the motor running longer or permanently. Will keep you posted

[PrintWhisperer]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

@Tech Helpdesk- I think if ribs cannot feed then more rotation does not help. However this timing observation is interesting and need to be verified as intentional and not intermittent contact (U030 test). Perhaps I have not watched long enough but it seems rotation should be continuous.
The real fix is to make the WT bottle ribs bigger since use of BK Toner as waste is being discontinued.

I think the problem is more complicated....

GREAT comment and it got me to thinking "Wow, they should have a 'FULL" state calibration in U155"
So I went and checked as it's been a bit since I checked for the latest bulletin and 'VOILA':

QA 2V8-0053 (M011) Details Firmware versions and procedure supporting setting U155 FULL by manual input (from leaflet with replacement Waste Toner Box Unit)

@KYO_OEM: So what is the magic number to set U155 FULL for detecting full on that 650g? (which will vary by unit a little bit I think)If you have the latest firmware then check U155 for that new parameter.

[KYO_OEM]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

i havn`t had time for testing 650g, but one of my colleagues had done this for 600g.

The needed value for "full/ 600g" around 120 - 127.
Higher value will decrease the amount of waste toner that can be in the Waste Toner box before the machine is reporting full WT.
Lower value will increase the amount of waste toner that can be in the Waste Toner box before the machine is reporting full WT.
Factory settings:
NON: 233
EMPTY: 190
FULL: 107

Take a look for the attachment, i received from my international colleague.

[Tech Helpdesk]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

i havn`t had time for testing 650g, but one of my colleagues had done this for 600g.

The needed value for "full/ 600g" around 120 - 127.
Higher value will decrease the amount of waste toner that can be in the Waste Toner box before the machine is reporting full WT.
Lower value will increase the amount of waste toner that can be in the Waste Toner box before the machine is reporting full WT.
Factory settings:
NON: 233
EMPTY: 190
FULL: 107

Take a look for the attachment, i received from my international colleague.

Thanks KYO, I will certainly read it and we will give it a try at 600g full and fingers crossed this will prevent the problems re-occurring

[fmelo@sapo.pt]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

Checking that the bottle turns is key and failure leads to the majority of back-ups in this system. There was the 'hanging foam' that would obstruct rotation, but there is a more severe issue which often goes un-noticed.

The essential piece is actually the Waste Toner Box assembly, which has 2 halves, an upper and a lower.
The halves are connected by about 6 plastic hook and clip sections.
The rear right clip (closest to the bottle drive gear) will become unclipped, and allow the bottle to move away from the drive gear.
This 'unclipped' state will also misalign the waste shute inlet from the waste auger assembly, leading to clogging there.

There are 4 bulletins regarding other modifications to the waste system which have serial number cut-ins for applicability to your units.

QA_I196 (Most comprehensive, spring deformation and drive irregularity)
QA_I052-Waste scraper change
QA_I229-Disuse of Box slider note
QA_J213-Box change (Guide rib added)

Need some help on this. Where can i find those Service Bulletins? Already have QA_I196 but i need the others. Can you please help? Thanks

[doinbox]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

hi,
When it is clogged, you first have to look what the reason is,
and check what the final solution, which part is infected.
my opinion: => parts which can be infected
is the wtb turning? => wtb unit (complete section), and calibrate correctly
is the cleaning waste toner clogged => changed
is it making noise ( cleaning spiral) => change feed drive unit
is the tr belt clogged? change Tr belt
are one of the drum cleanings clogged? change dk.

I never had one device which was infected for the 2nd time.
if you replace all parts correct, everything should be ok
and check if toner is original, this avoids lots of trouble.


have fun.

Must be the luckiest Guy alive.

[faizel]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

Checking that the bottle turns is key and failure leads to the majority of back-ups in this system. There was the 'hanging foam' that would obstruct rotation, but there is a more severe issue which often goes un-noticed.

The essential piece is actually the Waste Toner Box assembly, which has 2 halves, an upper and a lower.
The halves are connected by about 6 plastic hook and clip sections.
The rear right clip (closest to the bottle drive gear) will become unclipped, and allow the bottle to move away from the drive gear.
This 'unclipped' state will also misalign the waste shute inlet from the waste auger assembly, leading to clogging there.

There are 4 bulletins regarding other modifications to the waste system which have serial number cut-ins for applicability to your units.

QA_I196 (Most comprehensive, spring deformation and drive irregularity)
QA_I052-Waste scraper change
QA_I229-Disuse of Box slider note
QA_J213-Box change (Guide rib added)

Where can i find those Service Bulletins

[Samanator]

[blackcat4866]

Re: Kyocera TASKalfa 3252ci and 3253ci waste toner blockages

Nice detailed explanation! There aren't very many guys that will go this far, but it's definitely the right way to go.

Thanks for taking the time. =^..^=