Abstract: In a process head for electrophotographic apparatus integrally formed with a charing/exposing chamber, a developing chamber, a drying chamber and a fixing chamber along the feeding direction of the film for recording and thereby made capable of processing plural frames of the recording film simultaneously, stage heads which constitute the respective processing chambers are fixed to a mounting member and a portion with charging mechanism is detachably inserted in the interval space between the stage head corresponding to the charging/exposing chamber and the mounting member so that its maintenance can be facilitated and the apparatus as a whole can be made compact in size.

Abstract: A charging device for use in an electrophotographic apparatus is disclosed which charges, with improved efficiency and uniformity, a limited area of an electrophotosensitive member where a picture image is to be formed by corona discharge and which uniformly distributes electrostatic charges over the entire surface of the above area of the electrophotosensitive member. In the device, conductive members are disposed on both sides of a corona wire in the charging chamber to act as mating electrodes, and a mask in the form of a flexible film projects toward the opening of the chamber in such a manner as to make intimate contact with the electrophotosensitive member during charging.

Abstract: An electrophotographic device having a process head wherein four stages of charging/exposing, developing, drying and fixing are continuously arranged at intervals corresponding to one frame of a film, and a process which requires a longer processing time is conducted simultaneously while other processes are being conducted, thereby completing a whole process in a shorter time by a continuous operation.