Detailed information
lpstat -l -p
lpstat -a
lpstat -a | awk '{print $1}'
lists PPD files for printers that have been added to the system
ls /etc/cups/ppd/*.ppd
Find version of PPD file
cat /etc/cups/ppd/DCP7065DN.ppd | grep Version
Link:
https://askubuntu.com/questions/276437/which-driver-and-ppd-version-is-my-printer-using
