TA9003i lots of black dots printing

[LiamXCIII]

Hi everyone, here is one for you all.

I have a Taskalfa 9003i, which has done about 2.6Mil prints so far, creating vertical black dots in a line across the paper.

At first glance I thought charge roller, removed the drum unit and there I could see the white line on the charge roller lined up exactly against the printed dots image on the paper.
So I removed the charge roller, cleaned, put back in and the problem persisted, straight away. Took charge roller back out again, and the white line was in the exact same place even after I just cleaned it.

So after this I opted to replace the Drum unit, which had no impact, I have now proceeded to replace the development unit and today the transfer belt unit, everytime I open the device back up, cleaning the charge roller and the general area.
Once the device turns back on, first print I do the line of dots appear. Everytime it's in the exact same position, even against the old charge roller there is no movement of the dotted line!!

I cannot work out where this is coming from, as the only thing contacting the charge roller is the drum surface itself? And the drum unit is brand new!

I started to look at other options, maybe drum drive shaft, I cannot see that there is any burrs on the drum drive shaft, it looks pretty good to me, but perhaps some sort of vibration is causing this? Or maybe I am looking at the drum cover guide that sits on the front and rear torsion arms, closes against the drum when the conveying unit closes?

Has anybody had this problem occur, similar models will be TA8001i, TA8002i etc... attached example.

[Tonerkiller]

Re: TA9003i lots of black dots printing

Yes, I have seen this. Replace the transfer belt and the drum at the same time. The belt is arcing to the drum, so the belt is bad but now it took out the drum.

[LiamXCIII]

Re: TA9003i lots of black dots printing

Hiya,

Thanks for replying, did you get a chance to see the example of the problem I attached, does the fault you describe the fix for match that?

If so, then I will re order drum and transfer and replace as a pair.

Thank you

[BillyCarpenter]

Re: TA9003i lots of black dots printing

I've never seen this problem. But I'm curious as to the cause. Maybe blackcat or one of the other master techs will know??!!

[blackcat4866]

Re: TA9003i lots of black dots printing

Yes, I have seen this. Replace the transfer belt and the drum at the same time. The belt is arcing to the drum, so the belt is bad but now it took out the drum.

+1 on this. If you were to disassemble the 2nd transfer roller unit you would see burn marks on the 2nd transfer roller (behind the belt). =^..^=

[LiamXCIII]

Re: TA9003i lots of black dots printing

Thanks for confirming this, so what I have potentially done then, is...... fit a brand new drum unit, in which has now become faulty because the 2nd transfer belt unit has just taken it out again. And in fitting a whole new transfer belt unit, hasn't got rid of the problem because now the new drum unit itself is faulty?

So I was best off fitting the drum and transfer as a pair. DOH!

[blackcat4866]

Re: TA9003i lots of black dots printing

Yes, exactly. =^..^=

[LiamXCIII]

Re: TA9003i lots of black dots printing

Okey dokey, I will order up a new drum and transfer belt unit and fit as a pair, hopefully this will cure this horrible dotted line!

[BillyCarpenter]

Re: TA9003i lots of black dots printing

Thanks for confirming this, so what I have potentially done then, is...... fit a brand new drum unit, in which has now become faulty because the 2nd transfer belt unit has just taken it out again. And in fitting a whole new transfer belt unit, hasn't got rid of the problem because now the new drum unit itself is faulty?

So I was best off fitting the drum and transfer as a pair. DOH!

I'm sure you're not the first to make this mistake. I'm adding this to my database so I don't do it.

[Tonerkiller]

Re: TA9003i lots of black dots printing

I've never seen this problem. But I'm curious as to the cause. Maybe blackcat or one of the other master techs will know??!!

Sorry if my solution was not clear enough. I do not log into the site very often. I have been working exclusively on Kyocera for over 20 years.

[BillyCarpenter]

Re: TA9003i lots of black dots printing

Sorry if my solution was not clear enough. I do not log into the site very often. I have been working exclusively on Kyocera for over 20 years.

I meant no offense. Your solution was crystal clear. I was just looking to get another opinion. Good job on diagnosing the problem.

[bsm2]

Re: TA9003i lots of black dots printing

Sorry if my solution was not clear enough. I do not log into the site very often. I have been working exclusively on Kyocera for over 20 years.

You did a great job Buddy

[fishleg]

Re: TA9003i lots of black dots printing

Yes, I have seen this. Replace the transfer belt and the drum at the same time. The belt is arcing to the drum, so the belt is bad but now it took out the drum.

Yup same for me... Was an expensive learning experience no bulletins about it. I did a drum once it lasted 2 weeks before belt killed it.

Just make sure when you fit belt you run atleast 200 copies off and check the belt isn't starting to come off. It's like these machines are out to ruin your day. I've fitted loads and I would say 1/10 the belt goes weeee within 200 copies so it needs spaces.

[ntbann]

Re: TA9003i lots of black dots printing

They released a new transfer belt that does not need to be shimmed for meandering.302NJ94223

[LiamXCIII]

Re: TA9003i lots of black dots printing

Hi Chaps,

So indeed turns out it was the old transfer belt unit that was the culprit, this is what was causing the dotted line in the first place, and upon fitting a new drum on first visit all I did was create the same problem due to the belt being the issue.
When I fitted a new belt the issue was still there due to the new drum already being affected by the old belt unit.

New belt unit was ok upon inspection, so a new drum has sorted the issue, expensive due to destroying a brand new drum in the process but should I see the dotted line again I will now where to look.

Followed the bulletin which ensures the belt unit doesn't track too far and in turn shreds itself off to unit, the gap between the front edge of the belt and the metal guide next to is had to fall within 8-10mm
However I did not realise their was a new belt part 302NJ94223, one i ordered was the original 302NJ94212 PARTS BELT ASSY SP

Thank you all