I am using an HP880 printer, using the firmware V1.9.2.7 CR5 printing with LPT port some text/graphics are missing. (p9101d -f /dev/printers/0 1: i removed -B from the LPT printing deamon). I tried the USB port of the HP880 printer as well, this port seems to work ok.
Could you please post your system log, once job is printed? Try this with no -b.