[Printing-architecture] Scenarios for using the various Open Print API

Claudia Alimpich alimpich at us.ibm.com
Thu Nov 21 10:58:56 PST 2002


First I sent this note to printing-discuss but it got held up waiting for
the monitor. Maybe the same will happen to this note...

Following is what I came up with for possible scenarios describing how to
use the APIs together. Please provide your comments and any additions. When
it is clean, I will post it to the PWG site.

Claudia Alimpich
alimpich at us.ibm.com
-------------------------------------------------------------------------

21Nov2002

            Using the Application, JTAPI, Capabilities API, PAPI, and Print
Service


Following are scenarios that describe how the various Open Print APIs can
be used (or not used)
together:

      1) One of the following:
            a) The Application provides the user with choices that are
determined by
                  the application itself.
            b) The Application uses the Capabilities API* to determine the
capabilities
                  of the target device(s) and then provides the user with
choices.
            c) The Application uses a PPD file to determine the
capabilities of the target
                  device.
            d) What other ways can device capabilities be determined?
      2) The user makes selections from the choices.
      3) Optionally, one of the following:
            a) The Application uses the JTAPI to create a job ticket.
            b) The Application sets IPP attributes that describe how the
job is to be
                  processed.
            c) Both a) and b).
      4) One of the following:
            a) The Application uses the PAPI to submit the data/content
file and the job
                  ticket to the Print Service.
            b) The Application uses the PAPI to submit the data/content
file and the IPP
                  attributes to the Print Service.
            c) The Application uses the PAPI to submit the data/content
file, the job ticket,
                  and the IPP attributes to the Print Service.
            d) The Applicaiton saves the job ticket without submitting it
or the data/content
                  file to the Print Service.

* Question: Is the Capabilities API part of PAPI or a separate API?








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