I think one of the worst decisions I have ever made was to buy a Phaser 740.
Countless problems and headaches. And nothing but pay-per-incident support
for this printer that never should have been manufactured. I feel myself
about to go on a rant, so I'll get to the problem...
Lately I'm having problems with uneven toner density. The left and right
edges of the page are lighter than the middle - when I run a print test you
could say there are thing white streaks running vertically across the page
where the print density is too light. This is true for all colors. And
forget grayscale printing, sometimes it is practically imperceptible even in
the center of the page.
I've tried two different fusers (with two different fuser rolls) - one is
the latest version that resolves the toner flaking problems. I've cleaned
the transfer roller. I've tried using different paper sources. I've tried
different media types. My charge grid is just a few months old. All my toner
cartridges have been replaced within the last six months. Consumables page
reports 40% remaining on my imagining unit.
What on earth is going on here? Is there anything else I can do??? Seems
like I've tried just about everything.
I have a major project coming on and I need my printer to work. SOON!