View Full Version : CQ Lexmark Cs-410 White Void

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07-28-2021, 03:25 PM
I have a white void (see pic)49812 in the same area, but only in black. All 3 colors are fine. I've replaced the black developer unit, the entire image carousel, and took out print head assembly to clean mirrors and slit glasses. Has anyone seen this or have any suggestions?

07-29-2021, 01:43 AM
The variation in density implies a charge related issue. How about the black drum unit?

07-29-2021, 12:30 PM
Are OEM supplies being used?

It will either be the Black Developer (70C0D10) or the Photoconductor Kit (70C0P00). I can't see it being the Imaging Unit (ITB) since it is only Black that is showing the defect.

07-29-2021, 05:31 PM
Yes OEM I have replaced the black Drum unit and developer unit, the entire Image unit out of a pm kit.

12-03-2021, 01:21 PM
If you replace OPC and DEV, then, something is between laser and OPC. Check laser path..

12-30-2021, 10:38 PM
I would check the laser unit. there is probably dirt on the glass or lens. I would also remove the laser unit and clean it that way.

01-05-2022, 11:59 PM
First easy thing to do is to wipe the glass! The area is large though and leans towards material breakdown or contamination. Not just some splatter of toner on the glass.

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