Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

[rapidocument]

I've already ordered the black drum unit because of this problem but I'd like to know why is this happening?, I've already visually checked the (black) drum unit and other parts and there no seems to be a visible cause for the drum to get these little scratchs/points which causes to leave a "ant trail" on printouts. (Kyocera color M6230cidn).

Thanks in advance for your advice,

[blackcat4866]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

An image might help.

I can take a wild guess, that you're see toner fused to the black drum. It can be cleaned off, but comes back. The real issue is that the internal temperature of the machine gets warm enough to fuser black toner to the drum. To keep the internal temperature lower and preserve the life of other consumables, set the sleep timer to 5 minutes or less, or Silent Mode (or both). =^..^=

[BillyCarpenter]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

An image might help.

I can take a wild guess, that you're see toner fused to the black drum. It can be cleaned off, but comes back. The real issue is that the internal temperature of the machine gets warm enough to fuser black toner to the drum. To keep the internal temperature lower and preserve the life of other consumables, set the sleep timer to 5 minutes or less, or Silent Mode (or both). =^..^=

How did you ever figure that out, bro? That seems like it'd be a tough one to diagnose.

[blackcat4866]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

The first clue was that it mainly affected the black drum ... closest to the fuser. The temperature probe confirmed it. If you examine one of those drums closely, you'll see that the toner fused to the surface is in narrow bands crossfeed (its the toner in the drum cleaning unit fusing). And no, Kyocera was not particularly transparent about it. They came up with 3 or 4 different mods on the drum coating. The only real fix would be a software fix to run the fans longer, and keep the temperature down. =^..^=

[BillyCarpenter]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

The first clue was that it mainly affected the black drum ... closest to the fuser. The temperature probe confirmed it. If you examine one of those drums closely, you'll see that the toner fused to the surface is in narrow bands crossfeed (its the toner in the drum cleaning unit fusing). And no, Kyocera was not particularly transparent about it. They came up with 3 or 4 different mods on the drum coating. The only real fix would be a software fix to run the fans longer, and keep the temperature down. =^..^=

Good work. What temperature probe are you using? I may need to get one. Sounds like it could come in handy.

[rapidocument]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

Here are the photos of the drum and the printouts, IMG-20230725-WA0014.jpgIMG_20230816_074921.jpgIMG_20230725_140038.jpg

[Larhal]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

Here are the photos of the drum and the printouts, [ATTACH=CONFIG]59271[/ATTACH][ATTACH=CONFIG]59272[/ATTACH][ATTACH=CONFIG]59273[/ATTACH]

I also have seen the same thing that Blackcat described.

I would try to clean the marks from the drum and also clean the PCR, Are the drum marks scratches or bumps?

Are you using genuine toner or compatible?

[rapidocument]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

They are scratches, drum coating is peeled off as you can see in the photo, and am using genuine OEM toner.

[blackcat4866]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

Good work. What temperature probe are you using? I may need to get one. Sounds like it could come in handy.

There are a couple of different ways you can go:
If the thing you're try to take the temperature of is line-of-sight, you can get a temperature gun quite cheaply ($25):

https://www.amazon.com/s?k=temperature+infrared+gun&hvadid=409956186439&hvdev=c&hvlocphy=9017145&hvnetw=g&hvqmt=e&hvrand=8399806170057808859&hvtargid=kwd-314524919239&hydadcr=24630_11410023&tag=googhydr-20&ref=pd_sl_xxh7m4sfv_e

If the thing you're trying to measure is not line-of-sight, but you can touch it, even inside the machine, this little thing plugs into my meter. It's a dielectric temperature probe:
SA1-IEC| Adhesive Fast Response Surface Thermocouples, High Temp

Here's an example: I had a Mita DC2525 at a school. They had tucked it into a low height closet under a stairway (the kind with the door cut at an angle?). They didn't like the sound of it running, so they would close the door to the tiny closet. They were experiencing some weird fusing issues, the image would re-print multiple times down the page. So what I did was ran my temperature probe under the door, and taped it to the front cover. I started a job of 200 duplex images, closed the door, then watched the temperature. I stopped the experiment when it hit 120F inside the closet. It would have gotten hotter, but I had proved my point. =^..^=

[darry1322]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

They have a DK-5140A drum (302NR93180) that is supposed to help with these marks.

We've been using them for a while. Results are mixed.

[copydocinc]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

The first clue was that it mainly affected the black drum ... closest to the fuser. The temperature probe confirmed it. If you examine one of those drums closely, you'll see that the toner fused to the surface is in narrow bands crossfeed (its the toner in the drum cleaning unit fusing). And no, Kyocera was not particularly transparent about it. They came up with 3 or 4 different mods on the drum coating. The only real fix would be a software fix to run the fans longer, and keep the temperature down. =^..^=

So is Kyocera honoring the warranty for these drums or are they doing something else about it? I have a couple that had to be replaced within 8 months and only 25,000 pages total. Exactly the marks you talked about.

[blackcat4866]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

So is Kyocera honoring the warranty for these drums or are they doing something else about it? I have a couple that had to be replaced within 8 months and only 25,000 pages total. Exactly the marks you talked about.

I don't know about the warranty question, but adjusting the sleep timer is the only long term solution.

An image might help.

I can take a wild guess, that you're see toner fused to the black drum. It can be cleaned off, but comes back. The real issue is that the internal temperature of the machine gets warm enough to fuser black toner to the drum. To keep the internal temperature lower and preserve the life of other consumables, set the sleep timer to 5 minutes or less, or Silent Mode (or both). =^..^=

[copydocinc]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

I don't know about the warranty question, but adjusting the sleep timer is the only long term solution.

I did set the sleep timer to 1 minute, when I set up the machine out of the box.
I didn't notice the other setting you mentioned "silent mode" Is that in the same area, to change its setting?

[blackcat4866]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

It may be there in System Menu > Adjustment Maintenance > Quiet Mode.

Funny, I never noticed that the earlier machines called it "Quiet Mode". =^..^=

[KYO_OEM]

Re: Kyocera M6230cidn with points and lines, black drum unit is with damaged surface

Mebius drum nightmare...
Drum Dash Marks from bk or colored background because of broken surface layer
Quite mode can be helpfull, but most not be helpfull
Depended to the kind of usage it can happen or not.
See extract from related bulletin:
Corrective measures for the vertical line image (Drum dash mark). In case of the following condition, in order to improve
further, set the drum unit (No.1) exclusively for the drum dash mark prevention as a service part in the field (Note)
- Print volume is high
- Repeat the continuous high volume print job
- Repeat the job in a short interval
- Depending on the above usage condition or the usage environment, machine inside temperature becomes high.

Also mixed experience with special dk unit, i have.
Sometimes it can help, sometimes not

By the way:
You do not need run any measurements for internal temp, by service status page you can see current values.
It`s hidden on the 2nd page.
Temperatures on service status page.JPG
Do not use this drum for CMY, because there you will get broken drum surface layer in the early stage.
More often and much more against usage from "normal" color drum.
The pressure from the cleaning blade would increased and the expected lifetime shorten THX KYOCERA