[cups.general] RAW queue en 9100 printing

[Dennis Leeuw]

Hi all,

For all our windows printer queues we used to use IPP to the printer and 
a RAW queue on CUPS and that worked fine, till a couple of weeks ago we 
received a Xerox WC7556 printer. After a lot of tweaking and testing I 
found that the only solution to make it work is to use port 9100 + RAW 
printing.

When we use IPP and RAW and we send a job that has to print 2 copies, 
only one is printed.
When we use 9100 and RAW then all works fine.

That fact that we found a solution is great, but I also would like to 
know why. Can someone explain to me what the difference is and how this 
works? Or can someone point me to the direction how to find out what 
goes on?

We are using Windows XP, CUPS 1.4.3 on Ubuntu.

Thanks in advance,

Dennis Leeuw