[IPP] IPP Scan - Is Push scanning mandatory?

[IPP] IPP Scan - Is Push scanning mandatory?

[IPP] IPP Scan - Is Push scanning mandatory?

Ira McDonald blueroofmusic at gmail.com
Tue Feb 11 16:57:19 UTC 2014


Hi Mike,

I also want to hear Pete's definition of constrained network clients.

In TCG work on mobile devices, we are careful to accomodate very low-end
"feature phones" (under $100 street price) that dominate the emerging
countries
markets.  These devices definitely do *not* have 8GB, high-speed CPUs, or
large batteries.

Radio usage controls battery life.  Acting as a pull and forward agent for
large
files is a seriously poor idea for very low-end phones.

Cheers,
- Ira


Ira McDonald (Musician / Software Architect)
Co-Chair - TCG Trusted Mobility Solutions WG
Chair - Linux Foundation Open Printing WG
Secretary - IEEE-ISTO Printer Working Group
Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music / High North Inc
http://sites.google.com/site/blueroofmusic
http://sites.google.com/site/highnorthinc
mailto: blueroofmusic at gmail.com
Winter  579 Park Place  Saline, MI  48176  734-944-0094
Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434



On Tue, Feb 11, 2014 at 11:49 AM, Michael Sweet <msweet at apple.com> wrote:

> Pete,
>
> Please provide your definition of a constrained network scan client with
> minimal local storage.
>
>
> On Feb 11, 2014, at 11:38 AM, Zehler, Peter <Peter.Zehler at xerox.com>
> wrote:
>
>  All,
>
> The use case of the constrained client with minimal local storage should
> be accommodated.  However the use case important to Xerox is where the
> client must have the scanner deliver the scanned documents directly to the
> destination.  (e.g., scanning a contract and delivering is securely to the
> destination.)  The ability to discover scanners that support push without
> interrogating all the scanners in an enterprise environment is needed.  We
> eliminated seven of the text records from the discovery message.  This
> leaves 4 mandatory, 2 conditional, and 2 optional.  Adding this one should
> not be an undue burden.  I can live with a Boolean but would prefer a list
> of schemes.  A list fully populated with the defined values would be
> "http,https,ftp,ftps,smb,ipp,ipps,mailto" which probably comes down to
> about 45 bytes for the text record.
>
> Pete
>
>
>
> Peter Zehler
>
> Xerox Research Center Webster
> Email: Peter.Zehler at Xerox.com
> Office: +1 (585) 265-8755
>
> Mobile: +1 (585) 329-9508
> FAX: +1 (585) 265-7441
> US Mail: Peter Zehler
> Xerox Corp.
> 800 Phillips Rd.
> M/S 128-25E
> Webster NY, 14580-9701
>
>
>
> *From:* Ira McDonald [mailto:blueroofmusic at gmail.com<blueroofmusic at gmail.com>]
>
> *Sent:* Tuesday, February 11, 2014 10:55 AM
> *To:* Michael Sweet; Ira McDonald
> *Cc:* Zehler, Peter; IPP at pwg.org
> *Subject:* Re: [IPP] IPP Scan - Is Push scanning mandatory?
>
>
>
> Hi Mike,
>
> Crossed wires?
>
> The mobile client may have very limited local storage and therefore want
> the MFD to push a large scan output file directly to a network server.
> That's
> the use case for the boolean in the TXT record (at least I thought that was
> what Smith and Pete were concerned about).
>
> Cheers,
>
> - Ira
>
>
>  Ira McDonald (Musician / Software Architect)
> Co-Chair - TCG Trusted Mobility Solutions WG
> Chair - Linux Foundation Open Printing WG
> Secretary - IEEE-ISTO Printer Working Group
> Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
> IETF Designated Expert - IPP & Printer MIB
> Blue Roof Music / High North Inc
> http://sites.google.com/site/blueroofmusic
> http://sites.google.com/site/highnorthinc
> mailto: blueroofmusic at gmail.com
> Winter  579 Park Place  Saline, MI  48176  734-944-0094
> Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434
>
>
>
> On Tue, Feb 11, 2014 at 10:13 AM, Michael Sweet <msweet at apple.com> wrote:
>
> Ira,
>
>
>
> On Feb 10, 2014, at 5:31 PM, Ira McDonald <blueroofmusic at gmail.com> wrote:
>
>   Hi Mike and Pete,
>
> What about a simple TXT record discovery attribute for Push capability
> that's boolean?
>
> Since a bunch of URI schemes are conditionally mandatory anyway, that gets
> 90% of
> the discovery need.
>
>
>
> What would be the use case?
>
>
>
> It's one thing to need to find a color printer - you can't use software to
> print color on a B&W printers - but for scan if the MFD doesn't support
> push, the (mobile) client certainly *can* do it...
>
>
>
> _________________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>
>
>
>
>
>
>  _________________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>
>
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