I'm not sure this is the same problem but I'm working on a Phaser 8400 with blurry print. When the printer prints the the letter "A" for example, the shape of the letter "A" is printed 3 times, about 2mm below the first one and then 2mm below the second "A". Sounds like a y-axis problem, possibly the drum? The whole image is stretched on the page, the top and bottom of the red bar at the bottom of the status page is jagged. Thanks.
J