Whats wrong with my 4mp?

Archived from groups: comp.periphs.printers (More info?)

I have a Laserjet 4mp which has given me years of great service.

Recently, the output began looking "streaky; areas where the print was
faint; would vary from dark to faint on a horizontal plane (along the
line), but would appear in roughly the same place from line to line in the
vertical plane. I tried shaking the toner cart...no help. Went and bought
a new HP cart...same thing occurs.

Is it time to kiss this printer goodbye? What beyond the toner cart can
cause these symptoms? Any reasonable fix?

Thanks

Gary