Learn in the textbookOutput Devices (Display and Printing)
DefinitionA printer (プリンター) is an output device that prints a computer's text and images onto paper or other flat surfaces.
ExplanationPrinting methods differ in speed, fineness and suitable uses, and the table shows how the main methods compare. Print speed is expressed in ppm (pages output per minute), and print fineness in dpi (dots per inch).
AnalogyInkjet is like spraying colored droplets with a mister, laser is like laying colored powder on paper and pressing it in with an iron, and impact is like stamping hard enough to mark the sheet underneath too.
Memory hookImpact means a forceful blow. The striking force reaches the sheet underneath, which links it to the method that can make copies.