[lakpan]

I wish I knew anything about printing, but why can’t my computer just send a PDF to the printer and have it deal with the details itself? I don’t quite understand the need for the computer to have to get into the nitty gritty other than just sending the source and a JSON. Printers nowadays can handle the printing autonomously (obviously, since they can print via WiFi/bluetooth/pendrive since 2005)

[tonyedgecombe]

You need the user to select paper trays, simplex or duplex, etc. For bigger devices that might include document finishing options. Label printers might have a guillotine. Print/release where you need a pin at the printer to release the document are becoming more prevalent.

All this requires some interaction with the user. IPP Everywhere covers a lot but I'm guessing there will be some niche requirements that it misses.

[pxx]

This happens at a different layer than the printer driver; you just need to modify the postscript.

Paper trays, duplex, duplex with tumble, and cutting are specifiable in postscript; this is `setpagedevice`. Even things like custom stapler options (staple first two pages, etc) can be specified. See something like https://support.hp.com/us-en/document/bpp01888 for docs

[tonyedgecombe]

As I said IPP Everywhere covers a lot but there will always be requirements that haven't been considered.

[pjmlp]

Business laserprinters were always like that in regards to Postscript, followed by PDF, assuming your wallet is confortable with it.