Kyocera Ecosys M6526cdn image defects

[tsbservice]

Hi Guys, customer with KonMinoltas asked me a favour to see these 2 MFPs.
They both have image defects, lines on copy see attachments. Print samples are SEF and colored lines didn't appear always but on every few pages while black lines are on every copy.
Machine counts are 50k and 100k on machine with black lines/bands
I'm thinking that color lines machine has dirty DF glass and second one bad drum cleaning blade but wanted to hear from experienced.
Any ideas will be greatly appreciated as normally I don't work on Kyocera brand.

[copier tech]

Re: Kyocera Ecosys M6526cdn image defects

Hi Guys, customer with KonMinoltas asked me a favour to see these 2 MFPs.
They both have image defects, lines on copy see attachments. Print samples are SEF and colored lines didn't appear always but on every few pages while black lines are on every copy.
Machine counts are 50k and 100k on machine with black lines/bands
I'm thinking that color lines machine has dirty DF glass and second one bad drum cleaning blade but wanted to hear from experienced.
Any ideas will be greatly appreciated as normally I don't work on Kyocera brand.

Do these lines appear on prints or just copies?

All 4x drums are the same so you have 8x to help troubleshoot by swapping them around etc.

[tsbservice]

Re: Kyocera Ecosys M6526cdn image defects

Do these lines appear on prints or just copies?

All 4x drums are the same so you have 8x to help troubleshoot by swapping them around etc.

Black ones Yes. Color probably not although one of the clients tell me it does lines on print jobs also but I couldn't replicate them.
That is good stuff to know.

[craigster]

Re: Kyocera Ecosys M6526cdn image defects

First image to me looks like a transfer belt issue and second looks like scan glass. You need to print out the test page on colors to get the best notion of whats going on

[tsbservice]

Re: Kyocera Ecosys M6526cdn image defects

First image to me looks like a transfer belt issue and second looks like scan glass. You need to print out the test page on colors to get the best notion of whats going on

Belt would be an issue as I have no manual to read how to do adjustments etc after belt replacement.
I have read that dev/drums have life around 200k but what is transfer belt expected life? Do belt cleaning blades fail early?

[craigster]

Re: Kyocera Ecosys M6526cdn image defects

Transfer belt assy is a common issue as so are the drums. If those are original parts I would definitely get a transfer belt, they have benn update a few times. The test page is in system menu/adjustments and maintenance/ service settings/test page. When you get to service setting you will have to log in to device. user: 2600 pass 2600

[tsbservice]

Re: Kyocera Ecosys M6526cdn image defects

OK, now I found SM and feels much better

[blackcat4866]

Re: Kyocera Ecosys M6526cdn image defects

To me, the black issue looks like drum cleaning. Not sure about the second. Try these images:

[kuby]

Re: Kyocera Ecosys M6526cdn image defects

Defects gauge is in the Appendixes for the Kyocera machines. Should be under Trouble Shooting but it isn't.

[tsbservice]

Re: Kyocera Ecosys M6526cdn image defects

Defects gauge is in the Appendixes for the Kyocera machines. Should be under Trouble Shooting but it isn't.

I somehow read and actually like Kyo SM. One of the things that really impressed me is this gauge. Very visual. Liked test page green instead of weak yellow seen it in Xerox manuals also.
However cleaning blades have no repeating pattern. So does strange color rainbow.

[copiertec]

Re: Kyocera Ecosys M6526cdn image defects

Agreed with the other techs. First one is either drum unit or transfer belt, swap a drum unit from one of the other colors and see if it follows the drum unit, if it does the drum unit is the issue. The second one looks like smutz on the scan glass.

[tsbservice]

Re: Kyocera Ecosys M6526cdn image defects

Some feedback.

First machine cleaning optics seems to resolve rainbow lines.
Second machine I cleaned ITB and swapped black with magenta drums problem came back after day or two. Purchased ITB.
There's another third one meanwhile similar to second machine, swapped drums problem's gone on B&W.
New drum purchased.
Thanks to all for valuable suggestions and insights.
Easy to work with manual kinda liked it especially repeating errors gauge is very perspicuous and great idea to use green instead of week yellow for image troubleshooting, saw this also in Xerox.