HELP! Loads of trouble with HP 6110....

I need help!

I bought an HP Officejet 6110 to use with my iMac (OS X 10.2.8) a few months
ago and it has been nothing but trouble.

I'll try to print pages off a Pagemaker project, but often all I get is just
about 1/4 inch of printed material before the HP spits it out and does the
exact same thing on page after page. Some of the time, the material that is
printed is just a few lines of random text symbols.

Other times, I will get it to print correctly (usually after restarting my
Mac), but the project will shut down after just a few completed pages.

After this problem, I get a reading on the computer citing "system error 100."
What is system error 100? I tried scanning through the HP site, but couldn't
find any reference to a system error 100.

Does any of this sound familiar? What can I do to rectify these problems?

HELP!

thanks...

Jerry