I tried using a HP business inkjet 2800 PCL 5, PCL 6 and PS - uploaded all these drivers from
CDROM to driver store.

Unable to print when the iPrint printer is installed. Printer does not print at all although status
indicated so and iPrint showed success.

Uploading any 'system' instead of 'file' driver e.g. HP 4000 laserjet PS / PCL drivers, am able to
print to the 2800.

Am able to use the installed 2800 drivers to print direct to a Std 9100 tcp/ip socket although via
iPrint fails.

James Tan