Problem printing when there is an embedded picture

hello,

I'm trying to help someone that is having problems in both PowerPoint and
Word (2007) when they have an embedded picture. The user experinces random
printer problems (a black horizontal line, slides not printing, etc.). In
the case of the "black line", it appears randomly...sometimes running through
the picture, sometimes on page 1 and sometimes on page 16. She is able to go
back and reprint the affected page normally without a problem.

The printer has been checked out by an HP technician and said to be
fine....She has also tried printing using all the available drivers with no
luck...

Thanks!