HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

EN Customer Support-3
When you call the Personal Peripherals Assist Line, please have the
following information available to help us answer your questions:
z Identify which computer you are using.
z Identify any special equipment or software you are using (for
example, spoolers, networks, switch boxes, modems or special
software drivers).
z Identify the cable you are using and who sold it to you.
z Identify any special interface, I/O, or RAM boards installed in your
printer.
z Identify the software names and versions you are currently using.