Removing Printers (and other fun CUPS questions)
moseley at hank.org
Mon Jan 11 17:30:49 UTC 2010
This is on a 9.10 laptop. I'm in ipadmin group.
moseley adm dialout cdrom floppy audio dip video plugdev fuse lpadmin admin
System->Administration->Printing lists 32 printers. Some listed printers I
configured at my home (about 4) and the rest are network printers at the
1) How do I delete the ones I never use?
Selecting a printer, right click and "Delete" is grayed out.
I found a couple of related posts  but no solutions in my minute or two
of searching. Wrong search terms I guess.
Even if I run:
$ sudo python /usr/share/system-config-printer/system-config-printer.py
The Delete option is grayed out.
2) Where are all those printers saved? Even when I'm not on the office LAN
I still see the long list of printers. So, they must be saved some place:
$ lpinfo -vl | wc -l
And: http://localhost:631/printers/ shows only 10 printer. 9 have "Device
Not a lot listed in my /etc/cups/printers.conf
$ sudo fgrep Printer /etc/cups/printers.conf | grep -v /
# Printer configuration file for CUPS v1.3.9
Nothing in my home directory:
$ find ~/.cups/
$ ls -lt /home/moseley/.cups/lpoptions
-rw-r--r-- 1 moseley moseley 0 2009-12-15 10:34
My ppd directy is pretty empty:
$ ls /etc/cups/ppd
And, for example, I have a bunch of "Brother" printers displayed and this
$ sudo fgrep -r Brother /etc/cups
And I could not find "Brother" in gconf-editor.
Am I looking for printers in all the wrong places?
3) I'm never quite sure how to set up network printers. Should a machine be
used as a queue for the network printers and then all print jobs are sent to
that queue? Or should each user's workstation find the network printers
directly and install any required drivers or ppd files?
And if using a machine as a queue does that mean clients can send print jobs
to the queue w/o having to have any specific drivers or ppd files for the
printers that are connected to the queue machine?
4) And if clients use network printers directly (instead of via some queue
machine) what happens when the printer's IP address changes?
moseley at hank.org
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