HP PCL/PJL reference - Printer Job Language Technical Reference Manual

A-64 Product-Specific Feature Support EN
HP LaserJet 8000 and 8100 Series Comments
The PJL feature set used by the HP LaserJet 8000 and 8100 series
printers is similar to that of the HP LaserJet 4000 series printers. The
HP LaserJet 8100 also adds support for a few more paper sizes
(ROC8K, ROC16K, and JISEXEC) and adds job management
features (PROOF and HOLD jobs — see Chapter 10 for more
information on job management PJL commands).