I was going to submit a bug for this but I don't know what package I
should report the bug against.
Debian bugreport says:
Please enter the name of the package in which you have found a problem,
or type 'other' to report a more general problem. If you don't know what
package the bug is in, please contact debian-user@lists.debian.org for
assistance.
I have a Dell 2130cn, which is a PCL6 compatible printer. CUPS/Print
manager says
"Generic PCL 6/PCL XL Printer Foomatic/pxlcolor (recommended)"
is the recommended driver and the only PCL6 driver that actually prints
in color as far as I can tell. However, sometime in the past year or two
(maybe between Bullseye and Bookworm), this driver no longer allows me
to print in duplex.
I was able to print in duplex from Windows, so I decided to try a
different driver. I tried both
"Generic PCL 6/PCL XL Printer - CUPS+Gutenprint v5.3.4"
and
"Generic PCL 6/PCL XL Printer Foomatic/hpijs-pcl5c"
They both print in duplex, but do not print in color.
I would like to submit a bug report, but I do not know if I should only
submit one for printer-driver-pxljr, which I think provides pxlcolor or
something more generic.
