I have seen something similar in a deskjet that had been
dropped.
The solution in that case was to raise the round steel
bar that the print carriage rides along. The fault was
caused by the print head actually dragging along the
paper as it printed.

On 30 Jul 98, jack wrote:

>   I have recently encountered a problem with this printer.
>   If I print in the default color(black) the document is
>   printed with streaks running throughout, as if I were
>   crossing out words. If I change the color and leave the
>   font the same the document is printed perfectly. I have
>   followed the maintenance tips on the HP site, but come
>   up with the same results.
>
>   Does anyone have any idea how I might fix this (without
>   buying a new printer) Many thanks Jack Zeigler p.s. I
>   have also changed the black print cartridge.
                        Chris
from
Christopher M. Hutton        Electronics Technician

Aston Business School        [log in to unmask]
Service Unit
Aston University  UK         +44 (0)121 359 3611 Ex 4733