Question

in an printer the print head has they nozzles which spray ink at great speed on sheets of paper​

Answer 1

Answer:

Modern print heads contain chambers that get fed ink and tiny nozzles that spray out ink. Before print heads came around, prints were made on printing presses that made direct contact with the media. The process was often messy and expensive and the presses were very large. Modern print heads don't touch the media being printed on reducing mess and lowering the cost of printing. Inkjet print heads spray ink onto paper or other media in a controlled manner to produce the desired image.

Explanation:

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