Re: HOW2 mobile, headless-rPi connect to LAN-printer?

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Subject	Re: HOW2 mobile, headless-rPi connect to LAN-printer?
Date	Sat, 28 Mar 2015 09:21:30 +0000 (UTC)
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Cross-posted to 3 groups.

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On Thu, 26 Mar 2015 14:03:37 +0000, The Natural Philosopher wrote:

> On 26/03/15 13:30, Dan Purgert wrote:
>> what TCP9100 was used for back then
> 
> Basically its about as high level as a parallel serial or USB port. 9100
> was a RAW protocol.
> 
> How to get bytes from computer to printer. They still need to be the
> RIGHT bytes.
> 
> 
> MOST printers today are postcript capable and that means CUPS =- which
> is very very postcript oriented - will be able to make a stab at
> supporting them.
> 
> Problems occur with winprinters that accept some weird PCL language that
> need a special rasterisation setup to accept a full image or
> postscript-in-a-weird-font type stuff, or need special commands to
> select specail features like duplex printing.
> 
> The latter can be handled by writing a PPD file. I've actually dome that
> for a printer that wasn't fully supported.
> 
> 
> But rasterisation may be more difficult. I am not sure how cups handles
> that.
> 
> It seems on research there are a bundle of image and postcript to raster
> programs that cups uses - these should be totally portable to any
> architecture, and therefore part of any full CUPS and Ghostscript port.
> 
> And PPDs are just text files.
> 
> So I would say there is no part of CUPS that requires an architecture
> specific device driver beyond USB, serial, parallel or tcp socket level.
> 
> So cups on a Pi should 'just work' *once set up*. As well as it does on
> *86.
> 
> Now of the 'printer discovery tools' that allow automagic detection and
> installation of network printers, that is another matter.
> 
> Id google bonjour, as that seems to be the latest wheeze.
--
Obviously, many writers here are 'in the industry'.
So for them: the more complex the better.
But how/why do you USERS tolerate the absurdity: compared to printing
a page of plain text 40 years ago?!

If you examine a typical http of a big organisation, via lynx today,
each "page" is 95% redundant/repeated garbage; for 5% new info.
The kiddies cheer-on-with-delight each new layer of complexity.
It's like the lawers: "why use 10 words, when 10'000 will do?"

Thread

Re: HOW2 mobile, headless-rPi connect to LAN-printer? noSpam@gmail.com - 2015-03-25 03:13 +0000
  Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-25 09:34 -0400
    Re: HOW2 mobile, headless-rPi connect to LAN-printer? Joe <joe@jretrading.com> - 2015-03-25 18:05 +0000
      Re: HOW2 mobile, headless-rPi connect to LAN-printer? Jerry Peters <jerry@example.invalid> - 2015-03-25 21:04 +0000
        Re: HOW2 mobile, headless-rPi connect to LAN-printer? Unknown <dog@gmail.com> - 2015-03-29 22:04 +0000
          Re: HOW2 mobile, headless-rPi connect to LAN-printer? The Natural Philosopher <tnp@invalid.invalid> - 2015-03-30 08:35 +0100
          Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-30 09:06 -0400
      Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dan Purgert <dan@djph.net> - 2015-03-25 23:55 +0000
        Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-26 09:22 -0400
          Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dan Purgert <dan@djph.net> - 2015-03-26 13:30 +0000
            Re: HOW2 mobile, headless-rPi connect to LAN-printer? The Natural Philosopher <tnp@invalid.invalid> - 2015-03-26 14:03 +0000
              Re: HOW2 mobile, headless-rPi connect to LAN-printer? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-03-26 15:08 +0000
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? Unknown <dog@gmail.com> - 2015-03-28 08:45 +0000
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? mm0fmf <none@mailinator.com> - 2015-03-28 09:32 +0000
              Re: HOW2 mobile, headless-rPi connect to LAN-printer? Unknown <dog@gmail.com> - 2015-03-28 09:21 +0000
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? Joe <joe@jretrading.com> - 2015-03-28 10:09 +0000
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? Unknown <dog@gmail.com> - 2015-03-30 04:46 +0000
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-30 09:13 -0400
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? druck <news@druck.org.uk> - 2015-03-30 20:53 +0100
                Re: HOW2 mobile, headless-rPi connect to LAN-printer? druck <news@druck.org.uk> - 2015-03-28 22:52 +0000
  Re: HOW2 mobile, headless-rPi connect to LAN-printer? alister <alister.nospam.ware@ntlworld.com> - 2015-03-25 19:59 +0000
  Re: HOW2 mobile, headless-rPi connect to LAN-printer? John Davis <wa8yxm@arrl.invalid.net> - 2015-03-25 19:39 -0400

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