C5580 All-in-One printer using USB cable. Running Windows 7 on HP desktop. Printing blk. & wht. ext extremely slow. Each line of text takes at least 10 seconds. Ran Print Doctor and HP Printer Diagnostics. I uninstalled printer software and followed the HP Installer. It failed to complete: Fatal error - "-error" "-wStub" "394054". Now HP installer will NOT leave my desktop screen. It pops up with an icon of a small square with a rotating yellow CD in it. Can not cancel and delete this Installer placed icon and the mesage to retry. After many reboots it's still there! Printer problem persists.
USB cable not recognized when downloading new software and drivers for this printer after following instructions when to plug it in. Tried different USB location and still not recognized. Installer instructions had me change System Registry Utility to allow easier installation recognition for the printer but no instructions how to change the System Registry back! I restored the System to a week earlier date. Still no luck with printing problem. Please advise.