Q. How many rubber feet for the typewriter?
Solution:
rubber feet is used as roller for the ribbon .The ribbon is a thin strip of fabric or polymer such as Mylar, which is covered in pigment. It is positioned on two spools, with the ribbon running in front of the paper. When the keys are pressed, the typebars are pushed against the ribbon, leaving the imprint of a character behind. Typewriter ribbons are typically black but other colors are possible, as are bi-colored ribbons with (for example) a red and a black edge.
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