Air flow controlling system for an image recording apparatus

Details Air flow controlling system for an image recording apparatus Air flow controlling system for an image recording apparatus

1990-12-10

1991-10-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

271197, G03G 2100, B65H 2932

Patent

active

050600150

ABSTRACT:
An air flow control system for an image recording apparatus such as electrophotographic copying machines, includes an image recording device on which an electrostatic image is formed on the surface of a rotational image retainer. This image is developed to obtain a toner image. The toner image is then transferred to a recording medium which is brought into contact with the image forming surface, and the recording paper is then carried to a fixing device by a carrier device. A first suction inlet is positioned to prevent dispersion of the toner used in developing the toner image. A second suction inlet is positioned in the carrier device to provide suction to carry the recording medium. Air flow is dynamically controlled for both the first and second suction inlets, depending on whether a detector senses the presence or absence of the recording medium.

REFERENCES:
patent: 3685485 (1972-08-01), Kutsuwada et al.
patent: 4154521 (1979-05-01), Tanaka
patent: 4530589 (1985-07-01), Adams
patent: 4853735 (1989-08-01), Kodama et al.
patent: 4995307 (1991-02-01), Floyd

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