Discussion
Inkjet printer works on the principle of :
Answer: D
The answer is the piezoelectric effect.
In a piezoelectric inkjet print head, each ink chamber has a piezoelectric crystal in its wall. A voltage makes the crystal flex, which pushes a tiny droplet of ink out of the nozzle onto the paper. Epson printers use this principle; the other main type, the thermal or bubble jet, heats the ink to form a vapour bubble that ejects the drop.
Osmosis is the movement of solvent through a membrane and plays no part in ejecting ink. 'Newton effect' and 'Coulomb effect' are not the operating principles of inkjet printers.
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