Ventura print dialog seems to be broken when printing custom sizes
I am trying to print using a custom paper size on an Epson P800 on Ventura 13.3.1.
I am using the latest firmware and drivers from Epson, and am not using Airprint.
Using Preview gives me all the printer options, but when I select a custom paper size I get this error message (in print progress)
If I go into Advanced printer settings, the custom sizes I have created are not listed.
This is the basic print dialog with 250x516mm selected, and the preview showing correctly.
And if I scroll down and click on the (very unintuitive) little i next to printer features..
I get the advanced options, but showing only standard paper sizes
Could it be that the printer thinks the paper selected in advanced settings is the correct one?
Surely these should match, or at least the custom sizes should be available in the advanced options?
Either way, from Preview or Affinity Photo, I cannot get my printer to print this custom size.
What is going on here?
MacBook Pro 15″