PMP Mail Archive: RE: Printer Status - Web Server versus MIB (was: RE: PMP> New MFP Alert Groups Specification Available)

RE: Printer Status - Web Server versus MIB (was: RE: PMP> New MFP Alert Groups Specification Available)

From: McDonald, Ira (imcdonald@sharplabs.com)
Date: Tue Nov 21 2006 - 13:01:14 EST

  • Next message: Ron.Bergman@ricoh-usa.com: "PMP> MFP Alerts Meeting Minutes, February 19, 2007; Maui"

    Hi Paul,

    Typically, the embedded web server HTTP interface and the
    SNMP interface on network printers were developed by two
    different software teams, often at two different software
    vendors.

    Coherence across management interfaces gets lots of lip
    service from marketing types, but not much priority.

    Unless or until open web services interfaces are widely
    implemented on network printers, I doubt vendors will do
    much to improve this situation.

    Cheers,
    - Ira

    Ira McDonald (Musician / Software Architect)
    Blue Roof Music / High North Inc
    PO Box 221 Grand Marais, MI 49839
    phone: +1-906-494-2434
    email: imcdonald@sharplabs.com

    -----Original Message-----
    From: Paul Tykodi [mailto:ptykodi@tykodi.com]
    Sent: Saturday, November 18, 2006 9:43 PM
    To: McDonald, Ira
    Cc: 'Stuart Rowley'; 'Bergman, Ron'; pmp@pwg.org; wims@pwg.org
    Subject: Printer Status - Web Server versus MIB (was: RE: PMP> New MFP
    Alert Groups Specification Available)

    Hi Ira,

    I think you might be interested in the e-mail exchange appended below
    because it brings up the question (maybe an extension of the point made by
    Chris Story of Ricoh at the just concluded PWG F2F) of how reliable the
    proposed CIM and MFP Alert mechanisms will really be in the field when as
    mentioned in the attached e-mail discussion it is possible for a printer to
    issue different informative responses, for the SAME printer condition,
    depending upon whether an application has queried it via its internal web
    browser or its MIB.

    >From: Jason.F.Dawes@kp.org [mailto:Jason.F.Dawes@kp.org]
    >Sent: Thursday, October 05, 2006 12:54 PM
    >To: printing-user-lexmark@lists.freestandards.org
    >Cc: ptykodi@tykodi.com
    >Subject: Re: [Printing-user-lexmark] Lexmark T634 embedded web server
    >
    >Paul.
    >
    >Thanks for the information. As it turns out, the printer's SNMP agent is
    >returning different values for the appropriate MIBs than the values
    >displayed by the embedded web server, so using SNMP queries seems to have
    >limited value at this stage.
    >
    >i.e. For instance, the toner level is being read as -2 (unknown) and the
    >maintenance kit level is being read as -3 (some left!) while the web page
    >displays as percentages - much more useful when attempting to schedule
    >maintenance.
    >
    >It's quite possible that I'm not using the SMNP tool correctly, but it
    >seems very straightfoward.
    >
    >>"Paul Tykodi" <ptykodi@tykodi.com>
    >>Sent by: printing-user-lexmark-bounces@lists.freestandards.org
    >>10/04/2006 06:59 PM
    >>Please respond to
    >>ptykodi@tykodi.com To <printing-user-lexmark@lists.freestandards.org> cc
    >>Subject Re: [Printing-user-lexmark] Lexmark T634 embedded web server
    >>
    >>
    >>Hi Jason,
    >>
    >>The data sheet for the network interface card claims that it offers an
    >>industry standard MIB, which you can query via SNMP. I would imagine that
    >>most all of the characteristics shown by the embedded web server can
    >>therefore be queried via SNMP as well.
    >>
    >>HTH
    >>
    >>Best Regards,
    >>
    >>/Paul
    >>--
    >>Paul Tykodi
    >>Principal Consultant
    >>TCS - Tykodi Consulting Services LLC
    >>
    >>Tel/Fax: 603-343-1820
    >>Mobile: 603-866-0712
    >>E-mail: ptykodi@tykodi.com
    >>WWW: http://www.tykodi.com
    >>
    >>________________________________________
    >>>
    >>>From: printing-user-lexmark-bounces@lists.freestandards.org
    >>>[mailto:printing-user-lexmark-bounces@lists.freestandards.org] On Behalf
    >>>Of Jason.F.Dawes@kp.org
    >>>Sent: Wednesday, October 04, 2006 8:12 PM
    >>>To: printing-user-lexmark@lists.freestandards.org
    >>>Subject: [Printing-user-lexmark] Lexmark T634 embedded web server
    >>>
    >>>
    >>>I'm trying to develop an dashboard application that shows information
    >>>from a number of printers simultaneously.
    >>>
    >>>The Lexmark T634 has an embedded web server that has various pages, some
    >>>of which show the information that I'm interested in, as well as a Java
    >>>Applet that while useful, does not show everything that I'd like to see.
    >>>
    >>>Does anyone have any pointers to a reference for the embedded web servers
    >>>that lexmark uses, or barring that perhaps alternate methods for querying
    >>>the printer?
    >>>_________________________________________

    HTH

    Best Regards,

    /Paul

    --
    Paul Tykodi
    Principal Consultant
    TCS - Tykodi Consulting Services LLC
    

    Tel/Fax: 603-343-1820 Mobile: 603-866-0712 E-mail: ptykodi@tykodi.com WWW: http://www.tykodi.com

    > -----Original Message----- > From: pmp-owner@pwg.org [mailto:pmp-owner@pwg.org] On Behalf Of McDonald, > Ira > Sent: Saturday, November 18, 2006 12:52 PM > To: 'Stuart Rowley'; Bergman, Ron; pmp@pwg.org > Subject: RE: PMP> New MFP Alert Groups Specification Available > > Hi Stuart, > > With your example range (4) below (affects scan and fax, > but not print) you have neatly shown why I think that the > ranges are no help. When you add a document transform > function, an email function, an instant messaging function, > etc., these combination ranges become impractical. > > We are overloading right-most subunit index to specify > function (loosely 'imaging device'). > > But the ambiguity goes away when there's an XML Schema > or a MIB or whatever that _does_ expose associations of > device and service with subordinate subunits - because the > one-to-many from subunit "up" is explicit. That's what > the current WIMS/SM Service and Device objects and my > several drafts of an Imaging System MIB do. > > I suggest we replace this appendix with a "Rationale for > Design Alternatives" appendix (as in IPP PSX spec) and > explain why ranges of subunit indices is impractical > and not extensible. > > Cheers, > - Ira > > Ira McDonald (Musician / Software Architect) > Blue Roof Music / High North Inc > PO Box 221 Grand Marais, MI 49839 > phone: +1-906-494-2434 > email: imcdonald@sharplabs.com > -----Original Message----- > From: pmp-owner@pwg.org [mailto:pmp-owner@pwg.org]On Behalf Of Stuart > Rowley > Sent: Friday, November 17, 2006 3:27 PM > To: Bergman, Ron; pmp@pwg.org > Subject: RE: PMP> New MFP Alert Groups Specification Available > > > Ron, > > Thanks for posting the changes so quickly. > > I am still a little concerned that the case of a subunit used by multiple > functions is not clear. We discussed the subunits that use the print > function and the fax function as being in the print function index range, > but what about the example of a cover open which means the scan function > is > out and the (outbound) fax function is out, but the print function is > unaffected? What range would an implementation use in this case? > > Maybe we need 4 ranges: > 1: affects print function alone or in combination with other functions > (does > not break current implementations) > 2: affects scan function exclusively > 3: affects fax function exclusively > 4: affects scan and fax function > > Thanks, > > Stuart > > Stuart Rowley > Network Product Mgr. > Kyocera Technology Development > 1855 Gateway Blvd. #400 > Concord, CA 94520 > stuart.rowley@ktd-kyocera.com > V: 925.849.3306 > F: 925.849.3399 > > > > > > > From: pmp-owner@pwg.org [mailto:pmp-owner@pwg.org] On Behalf Of Bergman, > Ron > Sent: Friday, November 17, 2006 11:10 AM > To: pmp@pwg.org > Subject: PMP> New MFP Alert Groups Specification Available > > The latest MFP Alerts Specification is now available at: > > ftp://ftp.pwg.org/pub/pwg/pmp/wd/wd-mfp-alert-groups10-20061117.doc > ftp://ftp.pwg.org/pub/pwg/pmp/wd/wd-mfp-alert-groups10-20061117.pdf > ftp://ftp.pwg.org/pub/pwg/pmp/wd/wd-mfp-alert-groups10-20061117- > rev.pdf > > This document contains the changes discussed in last Wednesday's > teleconference. > > > Ron Bergman > Chairman, PWG PMP Work Group > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.409 / Virus Database: 268.14.7/537 - Release Date: 11/17/2006 >

    -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.14.8/539 - Release Date: 11/19/2006



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