Electronic copying apparatus

摘要

An electronic copying apparatus comprises a movable optical unit with a mirror lens defining a first light path between an original and the mirror lens and a second light path between the mirror lens and a photosensitive body, which include a ratio of optical distances controlled according to the copying magnification, and driving belts to move the photosensitive body according to the correlation as follows VP = ¦VL (1- alpha )¦ where VP is a moving speed of the photosensitive body, VL is a moving speed of the optical unit and alpha is a copying magnification.