Images being printed have very thin void lines which occur intermittently in feed direction as pictured (SUPER CLOSE UP PICTURE TAKEN)
Void lines have that pixel thick look to them, and dead straight and even, and can be in any position on the page front to rear, not consistently in one position.
They come and go throughout a print run, not degrade as the print run continues.
Where the red solid image border finishes (or starts???) the tiny white void lines become magenta lines to the edge of paper, IF THE VOID LINE happens to occur at that point. As i mentioned before they are not across the whole print in any 1 position.
- LSU glass has been cleaned obviously, but these void lines are too tiny and pixel perfect for that simple fix.
- Magenta drum charge roller has been swapped out and no change.
- Magenta drum cylinder replaced even though radial lines not visible on drum surface.
Would my next step to look at the magenta drum blade?
I have had other blades across various brands get tiny tiny nicks in them, and where you would expect a simple blade fail and constant toner line, it results in sporadic charge/discharge on the drum surface, and some very strange copy quality faults to diagnose.
I doubt a normal client would even notice these void lines, however my client is using data heavy graphics and running postscript high res prints so has a keen eye for any CQ issues unfortunately.
Input would be appreciated before we spend the money on a whole new magenta process unit for hot swap as a solution!!!
(Or I can lecture another client on business print vs professional print, not being a cheap ass, and to outsource or buy a professional print machine if he wants that quality - usually results in me being banned from site hahaha)