I've just bought a HP laserjet 6P printer from Ebay which I recived today, and whenI print pages with it , it does not print along a line vertically down the page. I've ensured I've got the latest drivers from the HP web site, I've tired the cleaning software utility which HP supply on their web site, and I've also tried haking the toner cartridge fro side to side. But the problem still persists. I coud buy another cartridge, but I don't want to do this , and find the problem still persists.
Has anyone got any ideas please?