Is a copier an input or output peripheral device?
A copier is neither an input device nor an output device because
it need not be connected to a computer and usually is not. A
Printer, which may also be used as a copier, is an output
peripheral device. A Scanner, which feeds data to a computer, is an
input peripheral device. Modern digital copiers use scanners as
their "front ends". The scanner is then an input device to a
copier.