Hello,

I've had this problem for a while now and was hoping someone would have an idea on how to fix it. My Dell 3000cn prints a vertical line down the center of every page 1-2 times out of every 15 pages or so. Here is a link to what it looks like:

Click here for image

I've replaced the drum, fuser, checked the head cleaner, to no avail. Technician suggests replacing the bios roller but I don't want to keep throwing money into this printer without knowing if it will be fixed.

Any ideas?