[franzpeterfolz]

Laser printers need much power for heating. Would it be possible to switch to a ink printer? They should work fine on 10 to 20 Watts. They even have external Poweradapters like a Laptop.

It depends on the usagepattern. Not printing enough would dry up the ink. Printing to much could be to expensive or to slow.

But heating dust up with a laser to melt it down on paper seems to be very inefficient in terms of energyefficiency.

[Kliment]

This is veering offtopic but laser printers don't actually use the laser for heating the toner, they use it to create charges on an image drum which picks up the toner electrostatically. The fuser assembly is a very simple resistive heater.