msweet at apple.com
Mon Feb 6 06:56:12 PST 2017
Stephan, > On Feb 6, 2017, at 2:39 AM, Stephan <stephanwib at googlemail.com> wrote: > > Hi Michael, > >> >> Check that you have the current firmware for your printer - that printer *should* be reporting PDF support. > > I discussed this with Lexmark and they will definitely not fix it in > their firmware. The reason is that a recertification of AirPrint would > be required by Apple. Newer printers (starting around 2012) do support > all attributes that are required, but not the series of 2010 and > older. This is very annoying as these printers can perfectly print PDF > (and even XPS) but cause big trouble in this use case. That is unfortunate... >> Anyways, the IPP backend has a number of "modes" to support older printers, and you are hitting one. > > I was hoping for a hint where the said attributes are discarded in > this particular case. It is not visible easily in the source code ;) In this case, if the printer does not report support for the document format, we drop the options (basically, we are sending the printer a "raw" print data stream and don't want to confuse it with job attributes...) _________________________________________________________ Michael Sweet, Senior Printing System Engineer