What does this message mean: "can't find in CUPS Spooler Entry"?

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http://askubuntu.com – As this older question on installing my printer was never solved, I thought about giving it another try - given the fact that now I have a different version of Lubuntu (12.10) and more experience: but the same Canon LBP-1120 printer. After following this guide, and also the manual of the driver, all seemed well until the last command in the manual (6. Register the printer in the ccpd daemon setup file). # /usr/sbin/ccpdadmin -p LBP1120 -o /dev/usb/lp0 This resulted in LBP1120 can't find in CUPS Spooler Entry!! What does this mean? EDIT: considering the closing as duplicate of this quest (HowTos)