Hi, On 2021-08-13 6:12 a.m., Brian wrote: > On Thu 12 Aug 2021 at 18:56:58 -0400, Polyna-Maude Racicot-Summerside wrote: > >> Hi, >> >> On 2021-08-12 6:27 p.m., Brian wrote: >>> On Thu 12 Aug 2021 at 15:33:26 -0400, Polyna-Maude Racicot-Summerside wrote: >>> >>>> Hi, >>>> >>>> On 2021-08-12 3:22 p.m., Brian wrote: >>>>> On Tue 10 Aug 2021 at 18:29:02 -0400, Polyna-Maude Racicot-Summerside wrote: >>>>> >>>>> [...] >>>>> >>>>>> I'm using a Xerox B205 MFC and it's fully supported. Yes it's laser but >>>>>> the reason I am writing this message regard something else. >>>>>> >>>>>> It's the support of MOPRIA. >>>>>> Even if it's mostly made for Android, what it does is offer a discovery >>>>>> and printing protocol compatible with all CUPS system (will publish IP >>>>>> endpoint that support PostScript, PCL and PDF, all depending on the >>>>>> printer but at least one of them). Regarding the scanner, it will >>>>>> support sending by email thru the use of a SMTP server account. >>>>>> >>>>>> So I think we can say these devices will be supported by Linux (and Debian). >>>>> >>>>> I was a bit taken aback when you advocated Mopria as a criterion for >>>>> determining whether a printer could be operated driverlessly on Debian. >>>>> But is it the *best* criterion? >>>>> >>>>> I've now got my head around it. >>>>> >>>>> Surely, it is better looking for AirPrint support in the printer specs >>>>> to determine the driverless capabilities of printer? >>>>> >>>> >>>> Have you looked what does Mopria is ? >>> >>> I have examined the aims and objectives of the Mopria Alliance in >>> excrutiating detail. >>> >>>> It require that the printer (and scanner) offer : >>>> Printing thru the use of IPP protocol >>> >>> Correct. >>> >>>> Possibility to send the data in PDF format directly (or JPG) >>>> Auto discovery of the services offered thru "Bonjour". >>> >>> Please give a link at the Mopria website substantiating your clain that >>> a Mopria certified device should be ca[able of accepting PDF as a PDL >>> in addition to PWG raster and PCLm. >>> >> Like already written in my first post regarding this issue : >> https://mopria.org/spec-download > > That is a link to an HP scanning specification. Maybe I was less than > clear that printing and printers were the focus of my attention, not > scanning. > >>>> And all of the condition make a printer pretty much driver less. >>>> >>>> There's no link with you talking about AirPrint. >>> >>> That avoids any meaningful dialog (and is incorrect). >> >> Can you explain to me what does AirPrint has to do with driverless >> printing ? Can you explain to me if AirPrint allow my printer automatic >> discovery ? IPP ? JPEG/PDF direct printing ? > > There are three criteria for a printer to be regarded as driverless. > > 1. The transport protocol must be IPP. Apple AirPrint uses it. > 2. There must be a discovery protocol, mDNS/DNS-SD. Apple AirPrint uses > it and calls it Bonjour. > 3. There must be a PDL common to the client and the printer. > > It is the third criterion in relation to Mopria that I am concerned > with. As you said above: > > > ...(will publish IP endpoint that support PostScript, > > PCL and PDF,... > > Leaving aside that PostScript and PCL are not acceptable driverless > PDLs, I was intrigued by the information that PDF is a common PDL > satisfying criterion 3 for a Mopria-certified printer. I read > > https://mopria.org/PDFs/Mopria_Whitepaper_092313.pdf > > which is from 2013. > > It says: > > > Page Description Languages WiFi Direct Services Print includes > > PCL-m, PWG Raster > > Standard Document Exchange Format JPEG, .png, PDF (future) > > I then hoped (forlornly, it turns out) that you might know the present > status of PDF as a printing PDL in Mopria eight years afterwards. > > If you do not know, thats fine. We will leave it there. > No one force you to nothing. I've already written that the printers support PDF and JPEG, but this seems unreliable to you because I'm in gendering from French Canada (as your good friend deloptes seem to believe). Sorry if I don't keep a notepad and bookmark of all the information I collect. The simple fact the the dozen of printer I installed and dealt with, all being chosen on the only fact of being Mopria supported were offering JPEG and PDF (plus more). Maybe I'd have more interest in doing some research to help you out, as you seem to need some hard proof regarding Mopria. But the interest in doing so go pretty low when I consider the type of rudeness and lack of respect you show in your messages. Hope you got all you needed as information. Good luck. -- Polyna-Maude R.-Summerside -Be smart, Be wise, Support opensource development
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