CX510de - white strip

[lebo]

Hello,
I can not still find caution of printing white strip in black. See the attachment "testpage.pdf".
For example switching between text mode and text/picture mode during copying makes strip less or more visible.
There are new image units in the machine. I also tested them in another machine, they worked ok.
Transferbelt was changed a 4 months ago.
I also cleaned mirror and glass in laser unit.
What do you think, is it damaged laser ?
Thank you for your advice.

[Phil B.]

Re: CX510de - white strip

Hello,
I can not still find caution of printing white strip in black. See the attachment "testpage.pdf".
For example switching between text mode and text/picture mode during copying makes strip less or more visible.
There are new image units in the machine. I also tested them in another machine, they worked ok.
Transferbelt was changed a 4 months ago.
I also cleaned mirror and glass in laser unit.
What do you think, is it damaged laser ?
Thank you for your advice.

sounds like you have toner clumps in the dev unit... replace dev powder or whole unit

[lebo]

Re: CX510de - white strip

sounds like you have toner clumps in the dev unit... replace dev powder or whole unit

Imaging-Developing unit is OK. I tried imaging units (all tray with all units and toners) in another machine and it worked without any problem.

[blackcat4866]

Re: CX510de - white strip

Take a look at the black drum unit. I've seen a bit of foam packing get stuck in the laser path. It's not particularly noticeable until you run the test sheet. =^..^=