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Thanks for your help.

I have (1) cleaned the charging corona, (2) changed the toner, (3) replaced the imaging unit, (4) cleaned the inside of the machine, (5) cleaned the syncronizing roller and...

Hello my friends

I have a problem with my old but perfectly working (till now ...) Konica-Minolta Bizhub C350: all of a sudden, it shows strange bubbles and shifts on black prints.

In appendix,...

The drawn arrow shows the way the paper is printed : tail of arrow comes out first, tip of arrow comes out last. The dirty strip is definitely on the trailing edge.

I now tried what I generally...

Well, it's not as easy as that to make the foggy strip visible on a scanned copy. I did my best and you can find a magenta testprint in appendix.

The picture shows the paper direction and the...

Sorry if I'm not clear (english is not my mothertongue) ...

The shown picture is a "zoom in" detail of a color A4 portrait test-print which includes a black part; it does not show the entire page....

Hi,

Thanks for your quick reply.

I can't figure out where the color printing process differs from the black printing process, making the strip to appear only in the first case. The transfer...

Hi everyone,

I have an old Konica-Minolta Bizhub C350, which is perfectly working with one exception: a foggy strip running from top to bottom appears on the trailing edge of every color copy or...

Thanks for the explanation. The clutch doesn’t seem to slip, whatever the loaded paper is. And if it would slip, the transfer rollers would turn at a lower speed, right? That would increase the speed...

Hi Albonline

Thanks very much for these very interesting explanations. Again, it's more complicated than one could imagine.

On the C350, there is a clutch on the 1st transfer roller (not on the...

Yep, the problem is definitely the fuser speed : I have now unmounted the fuser and checked all the paper guides, finns and mechanical movement of the loop detector. There is nothing wrong, that's...

Hi Albonline

The fuser loop detector works correctly, according to the i/o check page in the tech. rep. mode. The problem seems to sit elsewhere ...

Kind regards

Hello,

It's the first time I'm posting something on this forum. But I have used it many times to solve problems (and I found solutions!).

I have a Bizhub C350. I know, it's old and should be...