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

[Toxic]

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

I would go for developing unit replacement right after drum and charge unit replacement does not give results.

[blackcat4866]

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?

You lost me about half way through.

If it was the laser causing this issue by writing that band of image (on digital devices the laser writes the text/image, NOT the white areas), the laser would have to be consistently ON when the beam reached the one end, which seems very unlikely to me. Usually with lasers, the fault you get is light NOT leaving the laser, usually obstructed by toner, or dust, or a failed laser diode, or a failed mirror motor ... many of these things will code out the machine. If it passes a Auto Color Calibration, the laser isn't it.

In my opinion it's got to be the magenta developing unit dumping, or the magenta drum not cleaning, or a rusting charge grid. In either case the toner spray will contaminate the primary charge grid, making it worse. =^..^=

[OverKnight]

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

You lost me about half way through.

If it was the laser causing this issue by writing that band of image (on digital devices the laser writes the text/image, NOT the white areas), the laser would have to be consistently ON when the beam reached the one end, which seems very unlikely to me. Usually with lasers, the fault you get is light NOT leaving the laser, usually obstructed by toner, or dust, or a failed laser diode, or a failed mirror motor ... many of these things will code out the machine. If it passes a Auto Color Calibration, the laser isn't it.

In my opinion it's got to be the magenta developing unit dumping, or the magenta drum not cleaning, or a rusting charge grid. In either case the toner spray will contaminate the primary charge grid, making it worse. =^..^=

Simply put, I already swapped the drum to see if it would do the same thing. I don't know if it was creating the same conditions, but the build-up on the 2nd Transfer definitely occurred. The band is perfect and one could assume a mechanical defect rather than just a minor quality flaw with something else. Imaging was a guess, but like you said, that would code out (I kinda figured it would).

I'm reaching for the answer and SLOWLY getting to PERFECTION. LOL

AND I already thought of the coronas, got a full set of them. ;-)

I'll swap out the magenta and replace it with a new one. As for the drum itself, there isn't anything visible on it that would suggest its failing. We'll see what happens next...

Thanks!

[OverKnight]

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

I would go for developing unit replacement right after drum and charge unit replacement does not give results.

Yes, I already thought of the coronas. Got a set and a drum for the Magenta if all else fails. However, like I have explained, I swapped the drum out already to test the drum theory. Similar results.

I'm going with the corona and see if the problem lies there...

Thanks!

[OverKnight]

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

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

HMM, on the drum itself? That I don't know. I would need to look closer at that and would prove it is closer to the source of the problem.

What I do know, is the band is visible on the ITB. I would assume that the drum would have this as well if the machine panics...

I'm going to replace the corona to see if it's a charging issue to the drum.

Thank!

[OverKnight]

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

Morning!

First, I would like to thank everyone for their suggestions and guidance with this issue.

This morning I swapped the black corona with the magenta corona. Then sent a job for a quick 10 clicks and pulled out the drawer to observe the results on the 2nd Transfer... and found black depositing instead. TADA!

Pulled the effected corona and as you can see in the picture, there is a blob of magenta on the bottom rail. I would assume it's creating a blind spot/charging issue thus creating a band on the lead of the drum. It would also be the root cause to consumption, packing and collection of magenta. This band would just feed the drum and TBCU waste/$$$.
IMG_3772.jpg

Call me crazy, but I wanted to go one step further and clean the corona assembly. The next image shows the blob removed, the corona wire is cleared of all deposits and put back in service. Works perfectly.

IMG_3773.jpg

Each step of this process was a necessary and important step to the quality of the machine. The tinkering with each item and the ruling out of worse case scenarios is just part of the learning process. The final solution turns out to be a $50 part, which can now be held off until it's true EOL or quality suffers once more.

THE KEY TO KNOWING "WHY" HAS BEEN ACHIEVED, ONCE AGAIN COMING DOWN TO A SIMPLE FIX AND OBSERVATION!

Case Closed.

FYI, not only is it a good idea for you to maintain the service log, but have your clients keep one too. It was clear to me that the magenta here was way OFF because the last bottle of toner was swapped out in July. That means it only lasted a month or so and that didn't jive with the numbers.

[Toxic]

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

Glad you solve it after all suffer.
Charge units should be always first thing to check and replace and estimated life for them is with reason shortest compare to drum, developer etc.

[OverKnight]

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

Glad you solve it after all suffer.
Charge units should be always first thing to check and replace and estimated life for them is with reason shortest compare to drum, developer etc.

Your not wrong! It was just unusual to see a clear band of toner resulting from a bad corona. BUT, here we are.