Lines on Prints on Frontier 350 Digital Prints

[grimasos]

Hello
I get lines on prints in the direction of paper transport at all sizes and papers.
These are lines not from transport or scratches, but something about printing, laser, settings, calibration, etc.
Don't know what it is.

Attach image.

I dust this area by compress air. But i do not touch glass. Nothing...
Can you help me ?

[cj.ruiz]

Line is always in same place in any size? I can’t see color of line, is magenta?

[grimasos]

Line is always in same place in any size? I can’t see color of line, is magenta?

Line is gray.
All format. Line is haft directions paper width. Also problem Problem is lines around the text . Look at the picture.
Attach more excample

[grimasos]

More example