Confusion on the copies attribute

[Helge Blischke]

After testing the various combinations fo copies specification with out
IPP capable
production printers and comparing the observed behaviour with that when
using
their traditional legacy interfaces for submitting print jobs, the
following
results showed up:

	An explicit copies specification in either job submitting interface
	(IPP or legacy) in any case takes precedence over any copies
specification
	defined by the print stream itself (wether it is PS or PDF or PCL)

	If the job gets submitted without an explicit copies specification via
	the job submitting interface, a copies specification inb the print
stream takes
	precedence over the default number of copies configured into the
interface
	(usually 1).

	Thus, for out in-house use, I modified the IPP backend accordingly:
	the copies attribute with the value from the copies command line
	parameter is only added to the set of attributes submitted to 
	the IPP printer if and only if the original set of job attributes
	explicitely specifies the number of requested copies. 
	(The behaviour of the other backends is not changed).

If you think this a usuful modification, I'll file a STR.

Helge

-- 
H.Blischke at srz-berlin.de
H.Blischke at srz-berlin.com
H.Blischke at acm.org