firewall technology.

4.5. INTERNATIONALIZATION

   Users of Internet printing will come from all over the world.  As
   such, where appropriate, internationalization and localization will
   be enabled for the protocol.

5. IPP SCENARIOS

   Each of the scenarios in this section describes a specific IPP
   operation, such as submitting a print job. Section 10 contains
   several detailed flows for each scenario to provide additional
   detail.  The examples should not be considered exhaustive, but
   illustrative of the functions and features required in the protocol.
   Flows are intended to be protocol neutral. It is not assumed that all
   of the functions and features described in these scenarios will
   necessarily be supported directly by IPP or in version 1.0 of IPP.

   See the IPP Model and Semantics document for details on
   configurations of clients, servers and firewalls.









 
RFC 2567             Internet Printing Design Goals           April 1999


5.1. PRINTER DISCOVERY

   Client                                               Directory Service
   Service

    +----------------------------------------------------------- >
       give me information on printers with these characteristics


    < -----------------------------------------------------------+
        Information on Printers matching these characteristics

   The objective of printer discovery is to locate printers that meet
   the client's wants and needs. The Directory Service should provide
   enough information for the client to make an initial choice. The
   client may have to connect to each individual Printer offered to get
   more detail.  Not all information available from the Directory
   Service is obtained using IPP; some information may be
   administratively provided.

   The actual protocol used between client and Directory or Name Service
   is considered outside the scope of IPP. Printer Discover is included
   in the scenarios to provide design goals for the directory schema for
   IPP Printers and to further define Printer attributes.

   Characteristics that might be considered when locating a Printer
   include:

   - capabilities of the Printer, e.g. PDLs supported
   - physical location, e.g. in building 010
   - driver required and location
   - cost per page to print (outside the scope of IPP)
   - whether or not printer is access controlled
   - whether or not usage requires client authentication
   - whether or not Printer can be authenticated
   - whether or not payment is required for printing (outside the scope
     of IPP)
   - maximum job size (spool size) (outside the scope of IPP)
   - whether or not Printer support compression (outside the scope of
     IPP)
   - whether or not Printer supports encryption
   - administrative limits on this Printer
      - maximum number of copies per job
      - maximum number of pages per job








 
RFC 2567             Internet Printing Design Goals           April 1999


   Responses could additionally include:

   - how to get more information
      - web page
      - telephone number
      - help desk

5.2. DRIVER INSTALLATION

   Client                                               Printer