Computer Science for IGCSE & O level - Hardware (Section 25 - No. 33)

What happens in a thermal bubble (used in inkjet printers)?
Ink is heated and vaporized creating a bubble that ejects ink
Ink is ejected by the magnetic field
Ink is forced out by pressure rollers
A laser burns the ink onto the paper.

Explanation

Heat is used to form a bubble, which then ejects the ink.

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