BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

[cwmw.andy]

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]

Re: BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

Pull out the black drum unit and look for a pile of developer!

[blackcat4866]

Re: BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

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]

Re: BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

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]

Re: BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

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]

Re: BizHub C452 - Print Defect at top Right of Each page (no repetitions on the page)

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.