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cups-airprint

Cups 2.4 server to support Airprint for older printers

Docker image note

The image published to Dockerhub is only suitable for x86. If you want to run it on an ARM processor (e.g. Raspberry Pi 4), please run a docker-compose build yourselves for now.

Configuration

docker-compose

The container can be started via docker-compose.

Currently, it is required to run the container with host network mode to support multicasting for Airprint. The printer configuration is stored in the volume /config:

  • printers.conf: printer information
  • ppd: directory for ppd files

Username and password can be configured in the docker-compose file and the cups_password secret file (default if no password file: cups/cups).

Cups setup

The cups frontend is accessible at http://[host ip]:631. For setting up the printer, make sure to enable Share This Printer.

It takes some time until cups updates the printers.conf, so make sure that the file changed before stopping/restarting the container.

As an alternative to the WebUi, the printers can be also configured via command line, e.g.:

docker-compose exec cups bash

lpadmin -p bizhub20p -D "KONICA MINOLTA bizhub 20p" -v "http://192.168.24.19:631/ipp" -o printer-is-shared=true -i /ppd/bizhub20p.ppd # file has to be copied/mounted before
cupsenable bizhub20p
cupsaccept bizhub20p

Default paper size

The default paper size is currently set to a4 via /etc/papersize. This setting has to be adjusted via the environment variable if you require "Letter".

Acknowledgements