Vertical Blank Lines from Dell 3100cn Color Laser
I have a Dell 3100cn Color Laser printer that is about 18 months old. Just recently, when printing out any document, I get a blank vertical line that affects the black toner. Upon opening up the printer and removing the drum, and rotating to the black cartridge, there is a space on the mag roller where the toner doesn't seem to cover. I can move toner to the blank spot with my finger or card and the printer will print okay for a couple of pages. The problem will then repeat. The blank spots on the mag roller line up with my page.
I don't have the luxury to try a new drum but I don't think it is the drum because the other 3 colors print fine. I'm looking for any reasonable solution.