HP 2550L prints dirty bands on each page

[Fernando Peral]

The printer prints well, but it prints with a dirty band of near 2
centimeter width all across each page in the left part of it. For
example, printing in B&W a text page, i can read the text all over the
sheet, but the part of the band appears with a medium gray tone, darker
in the center of the band an lighter in the borders.

The drum is disty too. It has what i think is toner in the two roller,
the white roller and the light green roller. When i clean it completely
(with alcohol), it print well, without the band, sometimes just a few
pages, sometimes some hundres of pages, but in the end it begins to
print dirty again.

I think it may be the drum that it's bad, but i'm not sure. May be any
other part wich is getting the drum dirty? the drum is expensive enough
for not to change ir just for testing pourpouses.

any help?

thanks

 

[Baron]

Brenda Ann Inscribed thus:

If the band is across the page its likely to be a drum problem.
If the band runs down the page its probably a toner problem.
Usually if there is a drum fault the band repeats itself several times
on the page.

Your problem could be the drum, but is much more likely to be the
toner cartridge.

Taking the toner cartridge out and giving it a good side to side shake
often will clear bits of toner that has caught under the scraper blade.

 

[N_Cook]

Brenda Ann Inscribed thus:


If the band is across the page its likely to be a drum problem.
If the band runs down the page its probably a toner problem.
Usually if there is a drum fault the band repeats itself several times
on the page.


Taking the toner cartridge out and giving it a good side to side shake
often will clear bits of toner that has caught under the scraper blade.

And rotating backwards a couple of turns

 

[Jamie]

Brenda Ann Inscribed thus:




If the band is across the page its likely to be a drum problem.
If the band runs down the page its probably a toner problem.
Usually if there is a drum fault the band repeats itself several times
on the page.




Taking the toner cartridge out and giving it a good side to side shake
often will clear bits of toner that has caught under the scraper blade.

And while you do that, make sure there isn't a funny electronics and
plastic putty stuff attached to it!