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Unable to edit CUPS config file

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If you’re setting up a new Print Server, or adding new Printers to a Mac as per the Add/Remove Printers on Mac documentation:

  • Ensure that you have at least one Print queue set up on your Mac
  • Run /Applications/PaperCut NG/Control Printer Monitoring.command

If you then see errors in the Terminal app relating to: Unable to edit CUPS config file or Incorrect password

Then you can also try running the ‘configure cups’ command manually:

  • Open the ‘Terminal’ application on the Mac

  • Run:

    sudo su

    (that should elevate you to run as root, and ask for your admin password)

  • Run:

    cd /Applications/PaperCut\ NG/providers/print/mac/

    (or wherever you have installed PaperCut on your machine, to change directory to the print provider’s ‘mac’ directory)

  • Run:

    ./configure-cups

    (that should run the command manually to register the printers, running as root from above)

  • Set each printer in the list as you require - e.g. (E)nable/(D)isable/(L)eave


Categories: Troubleshooting Articles , Print Queues


Keywords: Mac , CUPS , error , add printer

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Last updated February 15, 2024