Bizhub C360, white spots with fuzzy white lines on Magenta & Black lines at bottom

[tsbservice]

Thanks for the posts, I'll check them out tomorrow evening. I work in another position and when I get off I'll review above, it's volunteer/charity based for me, likely won't be able to visit their location again till 4:00 CST. I did take some other pictures at the time but didn't want to flood with information on original post. The magenta drum looked okay previously that day and I rolled it to see all sides but didn't check black (doh). But good point on the colors of lines, My higher quality photo I couldn't upload for size limitation I checked seems to indicate that there might have been other colors faintly blended.

The Developing unit mag roller looked really messy , that might be normal for this model/brand maybe. Pages never exhibit changes or any decline in magenta so looks to be dumping okay. Swapping Drums tomorrow (or "technically" later today with the time lol) and we'll let you know, but just for all inclusive photo for first day.

From what I'm see now you really don't have magenta developer.

[Firmaware]

Totally agree with Copyman... the developers are not good

Gesendet von meinem SM-G980F mit Tapatalk

[MitchHPprint]

From what I'm see now you really don't have magenta developer.

I'm not sure I quite understand, are you saying that it's that bad? Cleaning Developer Unit - YouTube Haha! I assumed after watching this that that was the norm.

[blackcat4866]

I'm not sure I quite understand, are you saying that it's that bad? Cleaning Developer Unit - YouTube Haha! I assumed after watching this that that was the norm.

Definitely not the norm. You should have a nice "carpet" of developer across the developing roller. So you'll want the magenta developing unit.

The white spots indicate to me that the magenta developing roller has been arcing to the magenta drum. I'm thinking you'll need a magenta drum too.

And femaster is probably correct about primary transfer cleaning. Especially if the streaks are composite black (mixed of 4 colors). It should be obvious, even without removing the primary transfer belt. You'd see a streak of toner that wipes right off on the belt, as seen from the right side. Usually I have not had much luck with re-priming the primary transfer cleaning blade. Most likely you'll want a primary transfer belt unit also.

=^..^=

[femaster]

Yeah, after seeing that development unit, I'll agree completely with the others; there is essentially nothing on the mag roller in the development unit, which means that something caused it to empty out. That is usually the sign of a bad drum. Since the current drum had been in there for 6 months, I'm going to guess that it wasn't the old drum that caused the issue, but was in fact the replacement.

You will definitely need to replace the magenta dev unit as others have said, and even though the magenta drum was recently replaced, you'll want to do it again otherwise you risk draining all the developer out of the new dev unit.

Pardon the mess in this post, it was sent using crappy Tapatalk app...

[mayorg]

Change the DV unite it will 100% work

Sent from my SM-G960U using Tapatalk

[MitchHPprint]

I temp swapped the Yellow and Magenta Drums and there wasn't any change except then magenta faintly covered the whole page now(probably knocked some magenta toner loose in transfer, seemed less white spots in prints though.). Though I only performed 5 test page prints, at least it seemed to confirm dev unit since no change after 5 pages. Also I confirmed line issue was Transfer belt there was no lines on the black drum and the line did indeed have some other colors mixed in on page and ran up to blade.

So I informed them if they want to see fix (outside of any unknown issue were not aware of) a 1.)"A new Dev", 2.) "A new Magenta Drum; for future quality assurance" and then for the secondary dark lines at bottom of page issue a new 3.) "Transfer belt.

**
Btw I recommended ordering a Black drum for the drum portion(Dev is still magenta ordered). I saw the color drums were all twice the price! I'm assuming drums are universal? I noticed they had a yellow drum in there with a "K" sticker on it so figured that drums must be universal so no reason to not order the Magenta same way. went OEM for quality assurance (mostly due to age of printer model--don't want to get used parts).
**

Thanks Everyone for your assistance reviewing so I wasn't alone in my efforts, I'll definitely get a free pizza out of it so I'll take it. Be a while for parts to be ordered by them and for them to reach me back to come install, (shipping said 2 weeks) likely due to pandemic but I'd say I think were safe marking closure here.

[femaster]

Btw I recommended ordering a Black drum for the drum portion(Dev is still magenta ordered). I saw the color drums were all twice the price! I'm assuming drums are universal? I noticed they had a yellow drum in there with a "K" sticker on it so figured that drums must be universal so no reason to not order the Magenta same way. went OEM for quality assurance (mostly due to age of printer model--don't want to get used parts).

You've covered all the parts that I would recommend at this point.

One note however... The Black drum will "fit" into a color slot just fine, BUT you MUST order a "Color Reset Chip" and replace the chip that comes on the black drum. The chip is not the same, and the copier will give you an error that an incorrect drum is installed. While I don't recommend it, you could use the chip from the original magenta drum, but this might cause issues with the new magenta dev unit. Chips shouldn't be more than about $10 on average, so I personally wouldn't take the chance of killing the very expensive dev unit ove an additional few $$s.

[fornerm]

Hello,is there any result of troubleshooting? Machine is runing ?
mfg

[blazebusiness]

Hello,is there any result of troubleshooting? Machine is runing ?
mfg

If you read through all the comments more carefully you will see that after troubleshooting the problem the magenta developer unit was the problem.