Abstract: An electrostatographic reproducing apparatus and process include a system for ultrasonically cleaning residual material from the imaging surface. Ultrasonic vibratory energy is applied to the air space adjacent the imaging surface to excite the air molecules for dislodging the residual material from the imaging surface. Preferably pneumatic cleaning is employed simultaneously with the ultrasonic cleaning. Alternatively a conventional mechanical cleaning system is augmented by localized vibration of the imaging surface at the cleaning station which are provided from behind the imaging surface.

Abstract: Paged material stored on microform cards is reproduced with uniform page print margins on hard copy using an office microprint copier. Each card in a series is aligned with a test pattern and then perforated while aligned. The perforated cards are placed in turn on a microfiche holder for the copier having raised pins to fit the perforations. The microformed paged material is then reproduced by the copier in blown-up size in a desired sequence.