Bizhub C250 Printing alternating black smudges on top half, making new noise
This machine is printing alternating black smudges on top half of prints only. When I print or copy something with no content in top half it comes out clean. Also only seems to affect black. Printed some solid color images and only black content or text on top half of page is effected.
There is also loud repeating cycling noise jus before and after a print job is in process,... a sound I have never heard before this print defect started occuring.
Re: Bizhub C250 Printing alternating black smudges on top half, making new noise
Originally Posted by mo0651
What does the fusing unit look like. A lot of smearing and blurring.
No the fusing unit looks clean, ... at least on visual inspection of the rollers with the cover open. I haven't removed it to look beyond that. I would think that if it were a mess in the fusing unit it would show up on the clean prints (sample text at bottom of page... nothing at top), but it doesn't. They come out clean if there is no content in the top half... imagine the attached sample with white space only in the top of the page.