ELEKTROPHOTOGRAPHISCHES KOPIERGERAET

摘要

An electrostatic photographic copying machine includes a device for automatically exchanging used master paper with fresh master paper on a master holding body, and for indicating when such an exchange should be initiated. The machine includes an apparatus for cleaning the fixing roller, an apparatus for adjusting the amount of toner supplied to the developer, a transfer device whereby improper discharge is prevented, a transfer paper jam detector, and a device for improved mixing of developer.