Replacing the toner replaces a good part of the printing process. You could
try cleaning the drum carefully with a non-abrasive cloth in a dark room.
There are companies who will rebuild the toner cartridge and replace the
drum. They resurface old drums and reuse them.
If the toner cart isn't the problem, You need to look in the back and take a
look at the fuser roller. If it's scratched, you need to replace it. You can
replace the whole assembly, or if you're willing, just replace the roller.
That involves taking the fuser assembly apart carefully and changing the
The 4Lis a nice little printer. Definitely worth repairing as it will work
with most operating systems.
I thought there was a power switch inside the side door where the power
cable goes in.
Evan Koblentz Wrote:
> Got myself a (free) HP 4L today. It prints, but the page has a fuzzy
> background and there's a dark streak along the left edge. Of course I
> will replace the toner; ya'll think it needs more than that? Just a
> good cleaning inside, or is something broken?
> Oddly, HP has the service manual as a free download, but they don't have
> the user manual. Speaking of which: the power goes off after 15 minutes
> of inactivity, which is how it's supposed to work, but I can't figure
> out how to manually turn it off. Yes I tried pressing the power button.