Method and apparatus for determining when a layer of tacky mater

Details Method and apparatus for determining when a layer of tacky mater Method and apparatus for determining when a layer of tacky mater

1986-05-08

1987-11-10

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

118 60, 118104, 118691, 355 3FU, 432 60, 432 75, G03G 2100

Patent

active

047053887

ABSTRACT:
A method and a device are provided for determining the moment that a layer of tacky material needs to be rejuvenated. Typically, the layer is present on a cleaning member for removing contaminants such as paper dust and softened toner material from a fusing surface. The method includes measuring the light reflection value of the layer of tacky material, comparing the measured light reflection value with a reference value and rejuvenating the layer of tacky material as soon as the measured light reflection value differs by a predetermined value from the reference value. The device implements the method of the present invention.

REFERENCES:
patent: 4193681 (1980-03-01), Tanigawa et al.
patent: 4272182 (1981-06-01), Abe et al.
patent: 4272666 (1981-06-01), Collin
patent: 4336766 (1982-06-01), Maher et al.
patent: 4607947 (1986-08-01), Ensing et al.

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