Horizontal Lines pro 906ex

[ali.alhaj]

I have problem with pro 906ex when printing from PC after 500 to 1000 the machine print horizontal line.

My procedure :

1- replace LD
2- replace POLYGON
3- NEW firmware engine+system.
4- Replace Controller Box
5- Replace IOB board + BCU board.
6- OPU board
7- Replace Front Switches.

The Problem is still.

Can any body solve this problem.

thanks.

[slimslob]

Are the lines parallel to or across the direction of paper travel? Please provide a scan of a sample.

[ali.alhaj]

Hi

the file in the attachment .

[slimslob]

Hi

the file in the attachment .

If the paper was fed long edge first, I would say that it is time to rebuild the PCU cleaning unit, both coronas and possibly replace the drum.

[hossam]

hey there,
i have the same problem, have you found the solution for this problem?
thanks