HP PCL/PJL reference (PCL 5 Color) - Technical Reference Manual

4-6 Modifying Output Color EN
Finish Mode Command
The Finish Mode command allows the user to specify the finish, matte
or glossy, to be applied to the document. A normal page has a matte
finish. Glossy finish can be requested to be applied to the page as it’s
printed. The finish is distinct from the type of media. Therefore, a
matte finish can be requested for glossy media, and a glossy finish
can be requested for plain or matte paper.
?&b#F
The finish mode must be set before the first page is marked and
applies to all the pages in the document. Each document defaults to a
matte finish.
# = 0 - Matte finish
1 - Glossy finish
Default =0
Range = 0, 1 (command is ignored for invalid values)