Laserjet 3500 Print Missing

[agates]

I have a HP Laserjet 3500. When printing the Configuration Page, it will print only the colors fine down the page, but the black is missing. It always prints the first page perfect, after that, everything black is missing. I have replaced the black cartridge, transfer assy, and black scanner. Same issue. Minus it being light, copies are attached. Any ideas or help?

[cs_peter]

Your original attached link didn't go anywhere, so it was removed. We prefer people not link externally, which is why you can attach images to your post. Please repost images that way so that we can see the problem.