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cwmw.andy
11-17-2016, 10:02 PM
BizHub C452 Printing darkish mark at top of EVERY page. Same area, but has been getting progressively worse (growing larger and darker)
Tried searching the forums here, and am not seeing any similar issues, but hopefully somebody can tip me in the right direction.

FWIW using all OEM supplies...

For some reason I'm having trouble uploading image, and even insert from a web link...

Here's direct links to a couple samples
https://drive.google.com/file/d/0B5X0C5i7APJMMUU0NlpoMkZ4VXM/view?usp=sharing
https://drive.google.com/file/d/0B5X0C5i7APJMLWE5Z19DdXpBNzA/view?usp=sharing

Thanks!

mo0651
11-17-2016, 10:33 PM
Pull out the black drum unit and look for a pile of developer!:cool:

blackcat4866
11-17-2016, 11:17 PM
Which is the feed direction?
What size are these images?
Are functions are affected? Copies, scans, prints, some combination?

It sort of looks like a scanner focus issue to me, but the answers to these questions will narrow it down. =^..^=

Zesti
11-18-2016, 12:37 PM
Above both questions are valid. If It happens on copy/print? then check Black IU for developer pileup, if only in copy/scan then check scanner unit for misalignment.

konica7022
11-19-2016, 08:43 AM
I rebuild Y IU for c452 and it end up same way
only the YELLOW spread is on the lower right side of the papper

copier tech
11-19-2016, 10:58 AM
Andy as mentoned check your drum & developer units, if they are showing due in consumables replace them.

As for the user above, your answer, you 'rebuild' the image units! Fit OEM & you wont have any issues.

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