Bizhub C253 Magenta/Black Stripes across the page

[tsbservice]

Probably a stupid question but what/where are the PH windows?

Cleaning Procedure; Transfer Belt Unit; Ph Window Y,M,C,K - Konica Minolta bizhub C353 Service Manual [Page 225] | ManualsLib
As a temporary measure you can use copier tech advice and clean ITB cleaning section, old aged cleaning blade would do that.

[mga]

It will be the transfer unit best to get a trained service engineer to fit

[tsbservice]

It will be the transfer unit best to get a trained service engineer to fit

Agree Mark in the end he will need new transfer belt unit.

[femaster]

Thanks for the help!

I've attached a sample print and the units overview (it's in german as it's where I'm from). The transfer belt is due soon, can it cause this symptom?
The total count of pages printed is 450k.

The pics really helps! Is the document they are from available to download?
I'll try cleaning again.

Your marks are definitely from the transfer belt. The cleaning unit attached to the transfer belt is not functioning properly and leaving toner on the belt. Most likely there is something caught in the cleaning blade (soft rubber "blade" inside the cleaning unit). As others have said, you can try to clean out the unit, but from my experience the lines and marks will most likely return within the first 50 pages or so because the belt is near end of life.

If you do elect to attempt to clean out the unit, be careful, as any small ding in that belt will show up on all your pages. Also be aware that without the proper toner vacuum you are going to have a huge mess on your hands, so take the needed precautions to protect your work area. In the end, the transfer belt unit is going to need to be replaced no matter what because it's nearing end of life.

Good luck, and get a replacement belt on order!

[Fretek]

I tried to clean the sensors, windows and the transfer belt itself (which at close examination looks pretty terrible, there are stripes visible where it leave those marks) to no avail.

So I guess all I can do now is to order a new transfer belt unit with the Nr A02ER73022, is this correct?

[blackcat4866]

So I guess all I can do now is to order a new transfer belt unit with the Nr A02ER73022, is this correct?

Correct. You'll need to do a color calibration after it's installed. =^..^=

[Fretek]

To conclude this, I replaced the transfer belt unit and did a graduation adjust and it's working perfectly again.

Thanks alot to everyone who helped! Highly appreciated.

[qbert69]

Just a note for future reference...
If the cleaning blade on the ITB have the "chatter" marks for more than one color and they're blurred, you can be darn sure the problem is occurring with the ITB cleaning section!!! One way to check is open the side door during mid-process image transfer to see if the "skid marks" are visible. Additionally to completely rule out that the transfer belt unit doesn't need to be replaced, is to take out the ITB unit, run a thin piece of mylar plastic under the silicone cleaning blade to dislodge any clumped toner or paper dust and re-powder the belt with some yellow toner dust. Even before you do this procedure, you will want to inspect the belt for any lines, divots or indentations.

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