Offset majority uses hectograph, black-and-white graph article turns first imprint to bouncier mackintosh roller canister, turn again imprint to paper, call offset print normally.

• 平版印刷绝大部分采用胶版印刷,印刷的图文先转印到比较有弹性的橡皮布辊筒上,再转印到纸上,通常称为胶印。