AirPrint options for Dymo labelwriter 320 using raspberry pi
I have set up a raspberry pi zero to act as a print server using CUPS. This should allow me to use AirPrint on my iPad to print labels on my Dymo Labelwriter 320. I can indeed print to labels size 2.2”x4”, but this is the only size that I can get working. The AirPrint menu offers only 10 label sizes including the 2.2” x 4” size which is a bit too big for my preference. None of the choices are useful for me.
I would like to use my stock of 57mm x 32mm labels, but despite these being sold as compatible with the Label writer this size option does not appear on the AirPrint drop down list.
The CUPS server on the Pi also has choices and this does allow the 57mm x 32mm option, but it prints sideways across two labels.
I have tried editing CUPS config files, without success.
I can’t figure out where Airprint gets the list of size options from.
Is it a hidden configuration file on the Raspberry Pi? If so can I edit it to include my preference?
Is it from the printer hardware? If so why are there only 10 random options?
I am running out of ideas.