Printing

@Dave

I’ll need your email address.

In the meantime, please send me the Printer Definition File for your printer

PDF sent to you via email to the address you have included in IPPTrnspt.

Oh bugger.

Your printer, it seems, supports URF but not IPP.

The reverse engineering of URF that I’ve found does not show how to do duplexing.

Sorry.

Unless anyone else (nemo? nemo knows everything?) knows how to get duplexing to happen in URF, that’s a stopper.

Hi Dave,

I have extracted further information from the printer in the via IPPTools and Rick Murray’s FindIPP which I’ve sent to you to double check things.

Both tools state:

ipp-versions-supported (1setOf keyword) = 1.0,1.1,2.0
ipp-features-supported (keyword) = airprint-2.1

Hope the full details confirm things one way or the other.

Oops, I knew what I meant, but that wasn’t really what I said!

Your printer supports URF but not IPP PWG-Raster. That’s the bitstream carrying the information on the pixels to be printed.

Sorry.

It does mention PWG-Raster but not specifically IPP PWG-Raster in the output files but as usual it seems that a standard isn’t always a complete standard as they say and HP seem very good at that.

I have another printer that mentions it uses the PDumperIPP module but that isn’t duplex.

The printer-more-info string ends in info_config_AirPrint.html, and the document-format-supported string includes image/urf but nothing about PWG-Raster; this makes it look like a printer supporting AirPrint and Apple’s own proprietary format, but probably too early for the fully developed IPP to have caught on.

Anyway: if someone reading this has a printer that supports IPP PWG-Raster and duplexing, I hope to have something for you to test shortly, so please speak up!

Thanks for looking at this Dave and sorry I can’t help test this for you.

Still good to get to being able to test the basics.

A new PDumperIPP module is available from me – not from my web site, please either ask here or email me – along with three tiny BASIC apps to set to single-sided, duplex long edge, or duplex short edge.

As I’m sure you’ve worked out, feed/duplex selection is not part of the raster format but the metadata of the protocol that provides it – which would be IPP/CUPS/AirPrint.