Adding kernel boot parameter "pnpacpi=off" helps. Printer is now OK and apparently nothing else breaks due to switching pnpacpi off.
Anyway, I have no idea how to make it work "automagically" for other disribution users. So I pass the problem to you, The Debian Developers.
I offer to serve with my system as a testbed, if you want me to spoil more sheets of paper.
BTW the problem seems to be known for half a year in kernel bugzilla, but is not a leading edge problem, so I am afraid it needs THIS dirty patch in the distribution.
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