HP 4 FAMILY - Manual (Page 124)

Media Type
Command
This command sets the print mode required for printing on
various media types.
?&l#M
# = 0 - Plain paper
1 - Bond paper
2 - Special paper
3 - Glossy film
4 - Transparency film
Default = 0
Range = 0 to 4
If no printable data has been sent, this command moves
CAP to the top of form at the left margin of the current
page. If printable data has been sent, the page is closed and
printed, and CAP moves to the top of form at the left
margin of the next physical page.
When transparency media is loaded, the printer auto-
matically adjusts the media type to Transparency and the
print quality to Presentation Graphics, regardless of the
language or remote-panel selection.
The Media Type and Print Quality commands always
override remote control panel settings if the printer detects
a different type of media than was requested. It may
override these commands and the remote control panel
settings.
Note This command may override the remote panel. HP
recommends programmatically setting media type,
especially in network environments.
2-88 Printer-Specific Differences