CUPS back-end for the canon printers using the proprietary USB over IP BJNP protocol. This back-end allows Cups to print over the network to a Canon printer. The design is based on reverse engineering of the protocol.
Version 2.0 adds ink-level reporting and improved out-of-paper detection.
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Very happy with this software. Enabled me to use my Canon MX870 printer with Linux over a wireless connection.
Thanks so much!
Works, very small, no complaints.
On FreeBSD 8.2, the distributed cups-bjnp v0.5.3 ID'ed my Canon PIXMA MP990 via IP4/ethernet, but CUPS gave "Failed to read side-channel request!" Reading here about 5.5, it appears that bugs specific to the MP990 might remain in v0.5.5. So I tried enabling the MP990's optional 'lpr' support and Gutenprint's "Canon PIXMA MP990 - CUPS+Gutenprint v5.2.7" driver started working. Thumbs up and thanks for the effort, but not necessary for this printer.
Got 0.5.4 detecting Canon PIXMA MP980 (initial printer WiFi setup done from Windows) with CUPS 1.4.2 under Gentoo amd64 after creating a symlink from /usr/libexec/cups/backend/bjnp to /usr/lib/cups/backend/bjnp (might be good to update install for this). Now to test the actual printing all I need is to find an amd64 filter/PPD (or setup a 32-bit chroot for cnijfilter hoping it works with MP980).