Printing
Cups administration
Install:
pamaxc install system-config-printer cups-pk-helper
Configure /etc/polkit-1/rules.d/49-allow-passwordless-printer-admin.rules
as decribed in the docs above. The user needs to be in group wheel.
Then use system-config-printer
for printer administration, the web interface still asks for passwords.
Command line printing
simple print
lp -d Canon_MG6450 FILE
or even, when Canon_MG6450 is the default printer
lp FILE
Duplex
Default settings:
lpoptions -p Canon_MG6450
Available Settings:
lpoptions -p Canon_MG6450 -l
lpoptions -p Canon_MG6450 -l | grep -i duplex
Print parts of document:
lp -d Canon_MG6450 -o "page-ranges=1 CNGrayscale=True Duplex=None" A.pdf
Greyscale, no Duplex:
lp -d Canon_MG6450 -o "CNGrayscale=True Duplex=None" A.pdf
Print Duplex:
lp -d Canon_MG6450 -o Duplex=DuplexNoTumble A.pdf
Duplex Grayscale:
lp -d Canon_MG6450 -o "Duplex=DuplexNoTumble ColorModel=Gray" A.pdf
Set margins
lp -o fit-to-page -o page-left=18 -o page-right=18 -o page-top=18 -o page-bottom=18 FILE
Query available printers
lpstat -p -d
Set default printer
lpoptions -d Canon_MG6400_series_
Show default printer/destination
lpstat -d
Use different printer
lp -d EPSON_XP-342_343_345_Series …
etc
General stats:
lpc status Canon_MG6450
Show queue:
lpq -P Canon_MG6450