IPP> Document-format attribute.. [ipp-mod] clarification

IPP> Document-format attribute.. [ipp-mod] clarification

IPP> Document-format attribute.. [ipp-mod] clarification

Manros, Carl-Uno B cmanros at cp10.es.xerox.com
Tue Mar 28 17:24:30 EST 2000


Tom,

It seems that thlis clarification should go into the model docoment before
RFC publication.

Carl-Uno

-----Original Message-----
From: Hastings, Tom N [mailto:hastings at cp10.es.xerox.com]
Sent: Tuesday, March 28, 2000 8:27 AM
To: anthony.porter at computer.org; 'Venkatesh'; ipp at pwg.org
Subject: RE: IPP> Document-format attribute.. [ipp-mod] clarification


I searched both the Model and the Implementer's Guide and there isn't
anything that explains what "auto-sensing" is.

So, ok to add the following clarification to the [ipp-mod] document in
section 4.1.9.1:

 using an implementation-dependent method that examines some number of
octets of the document data

so that it reads:

4.1.9.1 Application/octet-stream -- Auto-Sensing the document format

One special type is 'application/octet-stream'.  If the Printer object
supports this value, the Printer object MUST be capable of auto-sensing the
format of the document data using an implementation-dependent method that
examines some number of octets of the document data, either as part of the
create operation and/or at document processing time.

Or should we put something similar in the Implementer's Guide, instead?

Tom


-----Original Message-----
From: Anthony Porter [mailto:anthony.porter at computer.org]
Sent: Monday, September 06, 1999 03:08
To: 'Venkatesh'; ipp at pwg.org
Subject: RE: IPP> Document-format attribute..


It can usually tell from the first few bytes of the file.  For example,
PostScript files start with %!PS and PDF files start with %PDF.  Gif files
start with GIF89 and so on.

-----Original Message-----
From: owner-ipp at pwg.org [mailto:owner-ipp at pwg.org]On Behalf Of Venkatesh
Sent: 06 September 1999 08:54
To: ipp at pwg.org
Subject: IPP> Document-format attribute..


Hello Everybody..
 I have a doubt in the "document-format" attribute that the client
optionally specifies in the request..(according to IPP/1.1 draft)
The draft says that if theclient supplies this attribute and its value
is
'application/octet-stream' then the server needs to aut-sense the
document..
Can anyone explain me how does this autosensing happens.......
How actually will the Printer Object  perform this task...

Thank You




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