
For moving probably the solution: 2 step motors (1 horizontally, 1 vertically)
I don't know of any patent that is on basic printers. If PDF is patented: You could convert PDF and PS files on the computer and then send the raw pixel data to the printer.
Fingerprints: I think you mean the yellow dots. I guess they are totally voluntary by the industry. (If any expert reads this and know that's wrong, please correct me.)
Again guessing: Ink doesn't produce poisonous stuff, only laser and thermo printers do. Or?
Regarding re-use of existing cartridge design/system: would it be too hard to 3D-print a cartridge in our own format?
Also we need a very primitive CPU/processor/microcontroller and a very simple firmware. Just spray ink or not, then move the carriage horizontally, then vertically.
I am wondering about (a) the data cable and (b) the power source:
(a) could be serial, RS232 or USB.
(b) could be battery, USB, power adapter.
I just stumbled over this project:
MMIX is created by Prof. Knuth purely for expressing his algorithms. Back then C++ and Java were the latest, hottest sh... (and would soon be outdated themselves). Prof. Knuth didn't like C++ and general programming language fashion. So he invented MMIX. It was never meant to be implemented in real HW.
I don't know whst's wrong with the other CPU architectures you listed. I especially wonder why Sparc wasn't used more.
I don't know of an industry company who builds truely libre hardware. Only half-libre if you are willing to call it so.
Which region are you willing to work in?
Following their price change and Unity Runtime Fee announcement, things for Unity Technologies keep getting worse and worse.

Unity frustrates devs with extra fees.
I don't think you need a particular order.
Windows -> GNU/Linux
KDE/Gnome -> JWM
TV -> Reading books
Twitter -> Fediverse
Coke/Cola -> Tea/infusion
Amazon -> Local bookshop
I definitely think that capitalism harms and should be ended. And right-wing is even much worse than capitalism.
Far left means communism and anarchism, right?
Assumed a moderate socialism is possible, how could it be organized? As a market soxialism (as the Wikipedia article describes)? Union-driven?
"Alternative gaming" comes to my mind. But "Underground" fits well.
I'm a bit worried about the far left.
One text I loved very much is "The rebels (or robbers) of Liang Shan moore (or Po)". I guess it is very taoistic, but I'm not sure about that.
Unfortunately I can't find a reference on English wikipedia and on the net. I am sure there is both because there's even a TV series about it.
The Analects (Lun Yu) is a famous book from Confucius (Kungtse). I love it but I think it isn't the final answer to everything. I understand why taoists laugh about him but I appreciate his rigid morals.
Richard Wilhelm was a German sinologist who translated several texts to German. For example I ging, Tao te king, Secret of the Golden Flower, Analects. In my opinion he gave great care for understanding the Chinese culture, not just viewing it through Western prejudices.
Hi all!
What software do you use? And is it as simple as you would like, or do you have to make compromises?
I do a lot of compromises. I use: Linux kernel, Xubuntu distro, jwm, Mousepad (editor), Thunar, xfce4-term, Chromium. I am slowly learning how to use Mutt, Arch Linux, Netsurf and perhaps Hurd or Haiku.
Greetings Peter
What's your favorite Magic edition?
Do you play Magic (or just collect)?
Or do you collect Magic cards beyond playing?
Let me introduce a really cool fantasy novel:
"A Wizard of Earthsea" is about magic, its power and its sources.
The main character is Ged, who is told about, starting from his childhood until he rises to power.
It is narrated vividly. The description of the magical school and the diverse sources of magic is entertaining.
Greetings Peter
What is your all-time favorite from the Discworld novels (by the famous Terry Pratchett) ?
Greetings Peter
Welcome to the world of RuneScape - One world, two amazing games! RuneScape is the original game that's been evolving for over 20 years! Old School RuneScape is the game as you remember it from 2007 - improved and expanded!

Hi all roleplayers!
I liked to play some MMORPGs (at least for a while), for example Runescape. But I stopped playing it for two reasons:
(a) A player can and must develop every skill.
(b) It doesn't run on Linux.
What MMORPG did/do you enjoy? Perhaps Runescape, too? Or maybe WoW?
Greetings Peter
I want to recommend to you the novel "Rivers of London" (In USA "Midnight Riot").
It's "Urban Fantasy", namely about a magic cop in the contemporary England. The main protagonist is Peter Grant, a black cop. He is the apprentice of Nightingale, the only legal magician in England.