I hope you've already prevented updates from the mothership as carts are not refillable and HP has been locking out third-party carts for a while: https://www.eff.org/deeplinks/2016/09/what-hp-must-do-make-a...
Best to write your congressman first. When the laws are clearly success in court is more likely. Right now HP is twisting some legal arguments in a way that holds up to the letter of the law.
No. It is willingness to abuse others when it is possible to get away with it. It is a matter of morality and conscience, nothing natural.
The people making up the company should have. That is, unless they want to live in a society, where homo homini lupus est.
The legal 'bite' that has been attempted to be used to make these tactics work in the US (with varying success) is the DMCA. [2] [3] [4]. The argument goes, if you try to break the mechanism that locks down the print cartridge, that counts as circumventing a copy protection device. [5]
[1] https://en.wikipedia.org/wiki/Sony_Computer_Entertainment,_I....
[2] https://www.cnet.com/news/lexmark-invokes-dmca-in-toner-suit...
[3] http://brandonw.net/skylanders/activision.pdf
[4] http://www.theregister.co.uk/2009/09/23/texas_instruments_ca...