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Luckin Coffee, the extremely successful Chinese competitor to Starbucks exclusively operates via their app. Sadly, users prefer it because of all the discounts and coupons it offers. So really, just surveillance capitalism as usual.
Ink tanks have a waste ink pad, which is essentially a sponge that soaks up ink, which may be replaceable depending on how shitty the manufacturer is.
Canon Megatanks don’t have a pad at all just dump the ink randomly, so you have to throw the printer out.
Epson’s Ecotank pads are replaceable, but have a DRM chip for a sponge (though quite cheap).
In a rare W for HP, their smart tanks have user replaceable pads (albeit labour intensive).
Print heads for ink tanks also tend to be fairly cheap, around $50 for a colour set. Issues with clogging etc are also overblown, with most modern models with auto clean cycles.
People love laser printers (and rightfully so compared to inkjets), but ink tanks fix most of the issues with inkjets.
Ink tanks are refilled with generic ink, as opposed to proprietary cartridges. They thus have vastly cheaper running costs, even more so than lasers, which still needs replacements for their drum units every few years.
Also, laser toner is literally fine microplastic powder, and printing works by depositing and “baking” this powder onto paper. Laser printers result in terrible indoor air quality without adequate ventilation.
The US is the fire nation confirmed
Water cooling is typically much more complex and expensive than air cooling, and is mainly attractive because of space limitations. The same applies to data centers. IBM’s mainframes have a liquid cooled version mainly targeted towards users wishing to get the most out of their data center space before upgrading sites. These ship without coolant, and simply ask the user to “just add water,” i.e. just demineralised/distilled water.
Sure Mainframe ain’t dead, but what about that toilet water? | Aussie Storage Blog - https://aussiestorageblog.wordpress.com/2021/04/07/sure-mainframe-aint-dead-but-what-about-that-toilet-water/