3228 pitch lines

[leo34staffs]

Hi guys,
I have said machine whereas when i print off an internal printer test pa,ge on 600 x 600, its fine. But when i print out the test page at 1200 x 1200 i get pitch lines through all of the colours, i have gone through the ld pitch adjust and have only achieved small improvements (still liney).

Any ideas?

[zyqwiz]

Don't know what you mean by pitch lines but if you have fine lines in halftones then its probably the big drive gears on the drive with the tiny teeth.

[FRIDGEMAGNET]

It really depends on how many jitter lines you have and where they are.
It sounds like either the registration motor speed or the fuser speed depending where the lines are on the page.
The service manual has a reasonable troubleshooting section for quality issues.