Received xx bytes of unknown back-channel data

[Michael Sweet]

Anonymous wrote:
> Today when printing I noticed that printed text is fuzzy. When I looked in CUPS Printers page i saw a message "Received 35 bytes of unknown back-channel data!" right under Printer State. I never saw this message before. What does this message means ? Is it a cause of fuzzy print ?

It just means that the printer sent some status data back, probably
to say "hey, your toner is low" or "out of paper".

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Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Document Software          http://www.easysw.com