C1060 with toner pile-up on the 2nd Transfer Unit

[OverKnight]

Anyone have an observation for this particular issue?

Let me set the stage, the ITB was a wreck. It was split/cracking on the front side and the Transfer Belt Cleaning Unit was certainly due for replacement. THOROUGHLY cleaned the ITB assembly and inspected the rollers, all seem well enough. Replaced the ITB and TBCU. System is perfectly happy with the new parts and print quality is perfect again, but...

On the 2nd Transfer Unit, there is Magenta depositing on the roller and piling on the metallic guide (SEE ATTACHED). To diagnose the issue, I swapped drums (old magenta drum with bad quality) and the problem still exists. I ruled out the drum and checked the Developer Unit. All looks fine there as well.

This was an issue I thought cured with the ITB not spewing toner through the cracks, but now Magenta is the only issue. The only other thing of note I think is the Magenta Drum doesn't seem to be evacuating the waste toner completely, maybe it's related?

Thanks!

[tulintron]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

Anyone have an observation for this particular issue?

Let me set the stage, the ITB was a wreck. It was split/cracking on the front side and the Transfer Belt Cleaning Unit was certainly due for replacement. THOROUGHLY cleaned the ITB assembly and inspected the rollers, all seem well enough. Replaced the ITB and TBCU. System is perfectly happy with the new parts and print quality is perfect again, but...

On the 2nd Transfer Unit, there is Magenta depositing on the roller and piling on the metallic guide (SEE ATTACHED). To diagnose the issue, I swapped drums (old magenta drum with bad quality) and the problem still exists. I ruled out the drum and checked the Developer Unit. All looks fine there as well.

This was an issue I thought cured with the ITB not spewing toner through the cracks, but now Magenta is the only issue. The only other thing of note I think is the Magenta Drum doesn't seem to be evacuating the waste toner completely, maybe it's related?

Thanks!

You can clean everything from the developer unit to the ITB. Print 20 to 30 pattern 53 with 255 in Magenta. The culprit of this will get dirty and find the cause. I would shoot the barrel.

If you suspect the magenta drum, you can try manually moving the mechanism and see if something is wrong.


It's not a hair loss defect, but it has to be evaluated carefully.


Good luck

[blackcat4866]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

Backed up drum waste can definitely cause this issue. Switching drum units may help in the short tern, but eventually the drum unit in the magenta slot will back up again. I see a major rear frame disassembly in your future. =^..^=

[blackcat4866]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

... It's not a hair loss defect, but it has to be evaluated carefully.

Can you clarify this statement? Maybe a questionable translation?

I try not to have any hair in my drum cleaning units. =^..^=

[OverKnight]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

Backed up drum waste can definitely cause this issue. Switching drum units may help in the short tern, but eventually the drum unit in the magenta slot will back up again. I see a major rear frame disassembly in your future. =^..^=

I anticipated that probability with the inspection of the older drum. I took the actual drum out of the assembly and saw that the magenta was packed. Auger was working correctly as I dumped the excess toner out and reassembled it again. Not worried about the quality, just needed to see if a clear drum is going to eject toner just like before. The answer was yes. No point in wasting a good drum that was going to act perfect for the first 500 sheets. LOL

So, if toner has no place to go, it would go in the direction of least resistance... Out the front facing side of the drum, transferred onto the ITB and then deposits on the 2nd Transfer? In essence, that would mean there is a blockage at the back exit point for magenta...

As for the suggestion of running test prints, I don't think that will help as the problem is outside the printable area to begin with. Agree?

[blackcat4866]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

... As for the suggestion of running test prints, I don't think that will help as the problem is outside the printable area to begin with. Agree?

There's no point in proceeding with image quality, until you can get that magenta drum waste to pass.
I agree. =^..^=

[OverKnight]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

There's no point in proceeding with image quality, until you can get that magenta drum waste to pass.
I agree. =^..^=

A bit more information before I tear into it...

Quality is great. The only problem is the dusting/depositing of toner specifically with magenta. The machine is also requesting a replacement of a toner filter. Service mode shows that the filter box is at 97%. I removed the back cover and inspected the filter box and also ran some prints with it removed to make sure the fan was working correctly. It works splendidly.

I have attached 2 pictures that shows that magenta is reaching for the exits everywhere! Behind the unit is missing the duct cover and the blower blasts it straight onto the wall. Waste toner collection looks like magenta is dominating the blend (I was expecting the waste to be brownish). Toner Density Sensor Output seems nominal at Line Speed 1-4, 29777-29782-29784-29772 respectively. Ran the TDSO after the ITB was replaced. That being said, is it possible that toner is overwhelming the drum? Doesn't look like it from the test and all the other colors are in the same range.

IMG_3756.jpgIMG_3757.jpg

Anyway, I'm just spit balling here before going in too deep for no reason.

Thanks for your suggestions.

[tulintron]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

Can you clarify this statement? Maybe a questionable translation?

I try not to have any hair in my drum cleaning units. =^..^=

"hair fall" is just an expression we use here in Brazil when something takes so much time and wisdom.

I may have applied it in an unnecessary situation, causing conflict. it was not the intention

[blackcat4866]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

A bit more information before I tear into it...

Quality is great. The only problem is the dusting/depositing of toner specifically with magenta. The machine is also requesting a replacement of a toner filter. Service mode shows that the filter box is at 97%. I removed the back cover and inspected the filter box and also ran some prints with it removed to make sure the fan was working correctly. It works splendidly...

The toner filters are on the inner front cover. Usually I just vacuum them off and reset the counter.

... I have attached 2 pictures that shows that magenta is reaching for the exits everywhere! Behind the unit is missing the duct cover and the blower blasts it straight onto the wall. Waste toner collection looks like magenta is dominating the blend (I was expecting the waste to be brownish). Toner Density Sensor Output seems nominal at Line Speed 1-4, 29777-29782-29784-29772 respectively. Ran the TDSO after the ITB was replaced. That being said, is it possible that toner is overwhelming the drum? Doesn't look like it from the test and all the other colors are in the same range.

[ATTACH=CONFIG]54659[/ATTACH][ATTACH=CONFIG]54660[/ATTACH]

Anyway, I'm just spit balling here before going in too deep for no reason.

Thanks for your suggestions.

I suspect that your magenta developer is over-toning ... but it cannot overwhelm the capabilities of the waste toner collection system, even when over-toning. I've got a couple of machines that persist in over-toning ... I suspect it's the replacement toner that we're getting, and all we can do is live with the crappy toner until it's gone.

You'll also get some toner spray during a blockage, from toner forcing it's way out of the waste system at any place it can, then get evacuated by a cooling fan.

The short answer is, you still have to take the waste system apart. Bring your vacuum and some extra stretch-N-dust cloths. You'll need them. If your very lucky you'll clear the blockage before something breaks. =^..^=

[blackcat4866]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

"hair fall" is just an expression we use here in Brazil when something takes so much time and wisdom.

I may have applied it in an unnecessary situation, causing conflict. it was not the intention

Now I know. Thanks for the education.

No, it doesn't translate to American English successfully. =^..^=

[OverKnight]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

...I suspect it's the replacement toner that we're getting, and all we can do is live with the crappy toner until it's gone...=^..^=

Well, as the supply chain unpredictability persists, the toner bottles in stock are sealed products direct from Japan? Not all of them, but definitely the magenta. The bottles are keyed differently as well...

Anyway, it's Friday! Machine is functional and I will no doubt need to clean it again before figuring it out. It's a Monday problem now.... LOL

I'll report my findings then, thanks!

[wjurls]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

A bit more information before I tear into it...

Quality is great. The only problem is the dusting/depositing of toner specifically with magenta. The machine is also requesting a replacement of a toner filter. Service mode shows that the filter box is at 97%. I removed the back cover and inspected the filter box and also ran some prints with it removed to make sure the fan was working correctly. It works splendidly.

I have attached 2 pictures that shows that magenta is reaching for the exits everywhere! Behind the unit is missing the duct cover and the blower blasts it straight onto the wall. Waste toner collection looks like magenta is dominating the blend (I was expecting the waste to be brownish). Toner Density Sensor Output seems nominal at Line Speed 1-4, 29777-29782-29784-29772 respectively. Ran the TDSO after the ITB was replaced. That being said, is it possible that toner is overwhelming the drum? Doesn't look like it from the test and all the other colors are in the same range.

[ATTACH=CONFIG]54659[/ATTACH][ATTACH=CONFIG]54660[/ATTACH]

Anyway, I'm just spit balling here before going in too deep for no reason.

Thanks for your suggestions.

If that filter box is at 97% you definitely need to replace it. They always look fine when removed but the internal filter is for sure clogged up. Also, while the filter box is removed, get your vacuum out with a crevice nozzle and reach back behind the process drawer and clean out those suction ports (8 of them). When the filter and ports get clogged these machines will start blowing toner all over the place. Particularly magenta.

[OverKnight]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

If that filter box is at 97% you definitely need to replace it. They always look fine when removed but the internal filter is for sure clogged up. Also, while the filter box is removed, get your vacuum out with a crevice nozzle and reach back behind the process drawer and clean out those suction ports (8 of them). When the filter and ports get clogged these machines will start blowing toner all over the place. Particularly magenta.

Yes, Sir! Go with the simple fix first. LOL

When I first saw the dusting throughout the unit, I made sure to clean out the inlets. The ITB was certainly distressed and the majority of the problem. Replacing the TBCU was due as well. Combined it cleaned everything up except this magenta leak. I will revisit the inlets, be thorough this time and replace the filter box.

I'll report the results once I have everything done and running.

[OverKnight]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

OK, got the new Filter Box and broke down the Process Unit and completed a thorough cleaning, including the Dust Proof Glass (you'll know why I point this out by reading the rest).

IMG_3767.jpg

NOTE: Out of curiosity I weighed the old Filter Box vs. the new and it was definitely heavier. Dumped it and magenta was spewing out. EWWWW.

Picked a job out that was a good sized run of 800+ sheets. Loaded the tray with 200 sheets (to break the run) and went to town... After each reload, I check the 2nd Transfer for deposits. Yep, magenta's still there. As the fate would have it, a few sheets would double and halt the system. WE BE JAMMIN'

This was a good thing because I was able to see this issue and it's literal tracks. As you can see, there is a BAND of magenta coming off the ITB. This isn't just some dusting of toner poofing from the end. It looks like its being written to the drum or rather the drum isn't being cleared near the end?

IMG_3768.jpg

Sticking to principles, I'm assuming the drum becomes charged, the Writing Unit exposes the drum thus reversing the charge in non-image areas and toner then adheres to everything else. That might be simplifying it, but I'm sure you get what I mean.

It's a guess that this area isn't being "written" correctly and carrying toner to a place that it doesn't belong. Again, thank God for jams. LOL

It's clearly a solid band of magenta toner and none of the other colors are a problem nor is quality. Machine is running like it doesn't care... other than consuming magenta like it's candy.

Any thoughts on this new hypothesis?

[tsbservice]

Re: C1060 with toner pile-up on the 2nd Transfer Unit

OK, got the new Filter Box and broke down the Process Unit and completed a thorough cleaning, including the Dust Proof Glass (you'll know why I point this out by reading the rest).

[ATTACH=CONFIG]54733[/ATTACH]

NOTE: Out of curiosity I weighed the old Filter Box vs. the new and it was definitely heavier. Dumped it and magenta was spewing out. EWWWW.

Picked a job out that was a good sized run of 800+ sheets. Loaded the tray with 200 sheets (to break the run) and went to town... After each reload, I check the 2nd Transfer for deposits. Yep, magenta's still there. As the fate would have it, a few sheets would double and halt the system. WE BE JAMMIN'

This was a good thing because I was able to see this issue and it's literal tracks. As you can see, there is a BAND of magenta coming off the ITB. This isn't just some dusting of toner poofing from the end. It looks like its being written to the drum or rather the drum isn't being cleared near the end?

[ATTACH=CONFIG]54734[/ATTACH]

Sticking to principles, I'm assuming the drum becomes charged, the Writing Unit exposes the drum thus reversing the charge in non-image areas and toner then adheres to everything else. That might be simplifying it, but I'm sure you get what I mean.

It's a guess that this area isn't being "written" correctly and carrying toner to a place that it doesn't belong. Again, thank God for jams. LOL

It's clearly a solid band of magenta toner and none of the other colors are a problem nor is quality. Machine is running like it doesn't care... other than consuming magenta like it's candy.

Any thoughts on this new hypothesis?

This means if you do panic stop machine test M drum will has that band?