Those problems still sound more easy to fix than building custom mems Inkjet nozzles at home.
Lasers in all sorts of wavelengths can be bought.
Putting charge on the toner is just a question of adding some high voltage.
The dielectric photosensitive material on the toner transfer drum, yeah that may require some research.
Just letting you know that you are definitely suffering a Dunning Kruger moment. I have had to study how printers work all the way down to the electrochemical level and no paper printer is simple to make aside from a dot matrix printer. In my educated opinion I will say that you are borderline correct that a laser printer might be more feasible from a materials standpoint, neither are feasible in general for a home lab, let alone a guy at his kitchen table assembling a kit.
Laser printers and ink jet printers involve extremely complex electrochemical and physical processes to function that a home lab is going to struggle to replicate. The optics for laser printers have to be assembled in a clean room because even a single stray particle of dust will destroy the print quality for a large section of the page. Ink jet printers use tiny heaters to vaporize the ink and electric fields to propel it through a nozzle to the page. These jets are created using multilayer acid etched circuitboards that are precicely tuned for the specific inks and substrates that are used.
These are just examples of challenges to overcome, and are by no means exhaustive.
I hate the printer companies probably more than anyone here, so do not think I am a shill for them. I am articulating why what you are saying is impractical and unreasonable. Laser printers are probably easier to source most of the mechanical parts, but assembly is obscenely delicate and prohibitive. Ink jet printers are simpler to recreate and assemble, but the miniaturization required makes it impossible to do at home.
Those problems still sound more easy to fix than building custom mems Inkjet nozzles at home. Lasers in all sorts of wavelengths can be bought. Putting charge on the toner is just a question of adding some high voltage. The dielectric photosensitive material on the toner transfer drum, yeah that may require some research.
Just letting you know that you are definitely suffering a Dunning Kruger moment. I have had to study how printers work all the way down to the electrochemical level and no paper printer is simple to make aside from a dot matrix printer. In my educated opinion I will say that you are borderline correct that a laser printer might be more feasible from a materials standpoint, neither are feasible in general for a home lab, let alone a guy at his kitchen table assembling a kit.
Laser printers and ink jet printers involve extremely complex electrochemical and physical processes to function that a home lab is going to struggle to replicate. The optics for laser printers have to be assembled in a clean room because even a single stray particle of dust will destroy the print quality for a large section of the page. Ink jet printers use tiny heaters to vaporize the ink and electric fields to propel it through a nozzle to the page. These jets are created using multilayer acid etched circuitboards that are precicely tuned for the specific inks and substrates that are used.
These are just examples of challenges to overcome, and are by no means exhaustive.
I hate the printer companies probably more than anyone here, so do not think I am a shill for them. I am articulating why what you are saying is impractical and unreasonable. Laser printers are probably easier to source most of the mechanical parts, but assembly is obscenely delicate and prohibitive. Ink jet printers are simpler to recreate and assemble, but the miniaturization required makes it impossible to do at home.
And bottle printers? Or just the circuit board/software of an inkjet (Arduino)?