Image forming equipment having improved toner sensing

Details Image forming equipment having improved toner sensing Image forming equipment having improved toner sensing

1992-07-31

1993-12-14

Grimely, A. T.

Photocopying

Contact printing

Light boxes

355208, 355245, G03G 2100

Patent

active

052707830

ABSTRACT:
Image forming equipment having an image carrier and a developer carrier located face-to-face and forming an AC-superposed DC electric field between them to develop a latent image electrostatically formed on the image carrier. Sensors responsive to image forming conditions are provided and protected from noise ascribable to an AC component included in the electric field in the event when the sensors operate.

REFERENCES:
patent: 4620783 (1986-11-01), Tanaka et al.
patent: 4657374 (1987-04-01), Kurmoto et al.
patent: 4910557 (1990-03-01), Imai
patent: 4935784 (1990-06-01), Shigehiro et al.
patent: 5047804 (1991-09-01), Komura
patent: 5078086 (1992-01-01), Kopko et al.
patent: 5122835 (1992-06-01), Rushing et al.
patent: 5132733 (1992-07-01), Koizumi et al.

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