Re: Question regarding continuous media

Armin,

> On Dec 7, 2025, at 7:23=E2=80=AFAM, Armin Felder =
<[email protected]> wrote:
>=20
> Hi,
>=20
> In my free time, I am currently working on a small thermal printer =
driver using the PAPPL lib.
> I defined a media called: continuous-short_bdl_58x0mm (5.1.3 =
5101.1-2023)
> but when sending a job with e.g. 58x99 it fails validating the media =
size

"continuous-short" is not a valid media name prefix.  The currently =
registered prefixes are "asme", "custom", "disc", "iso", "na", "oe", =
"om", "prc", "roc", "roll", "jis", "jpn", with "choice" available to =
combine multiple sizes such as =
"choice_iso_a4_210x297mm_na_letter_8.5x11in" to automatically choose =
between ISO A4 and US Letter.

What you want is "roll_current_58x0mm" for 58mm wide roll of =
indeterminant length for the ready size, "roll_default_58xLENGTHmm" for =
the default size, and "roll_min_MINWIDTHxMINLENGTHmm" and =
"roll_max_MAXWIDTHxMAXLENGTHmm" for the supported sizes.  Since not all =
clients know how to deal with roll media, you should also include =
"custom_min/max_WIDTHxLENGTHmm" in the supported media.

The media types for continuous media would be "continuous" for paper and =
"labels-continuous" for labels.

________________________
Michael Sweet