Q. Normal width of a typewriter ribbon is ?

A
10 mm
B
11 mm
C
12 mm
D
13 mm
Solution:

A typewriter ribbon or ink ribbon is an expendable module serving the function of transferring pigment to paper in various devices for impact printing. Such ribbons were part of standard designs for hand- or motor-driven typewriters, teleprinters, stenotype machines, computer-driven printers and many mechanical calculators, before electronic alternatives replaced most of them.

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