>>>https://www.techdirt.com/articles/20150815/02480731963/your-toner-is-no-good-here-region-coding-ink-cartridges-customers.shtml
>>
>>yesterdays c't (the article cited on your links is two weeks old) comes up that Kyocera does the same.
>
>WP claims HP has been doing it since 2004: https://en.wikipedia.org/wiki/Regional_lockout#Printers

For HP and Xerox I would have expected the like. Kyocera was not that known on the consumer market and more reliable a long time.

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