The printer is not printing. It makes no difference if I am using an
application or trying to print a test page in the control center. For test
page, I've gone to
control center (kcontrol) -> peripherals -> printers -> instances -> test ...
I'm having trouble printing with Gentoo, and CUPS. I have configured CUPS and the HP driver correctly (well I think) and when I go to print a test page it'll print a page which is 100% black. THis happens on 600dpi, and not on 300dpi, but I want 600dpi since the quality of images on 300dpi is bad.