Sensor for measuring toner applying capability

Details Sensor for measuring toner applying capability Sensor for measuring toner applying capability

1994-05-05

1996-04-09

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118688, 355208, G03G 2100

Patent

active

055066640

ABSTRACT:
A sensor measures the toner applying capability of a toning station. It includes a transparent conductive rotatable member which is rotated through a developer applying zone and a sensing position remote from the developer applying zone. Toner is applied by developer in the station to the exterior surface of the rotatable member as controlled by a bias applied to the rotatable member. The applied toner is sensed by a transmission densitometer at the sensing position. The output can be used to control toner concentration, an original charge on an image member or a development bias applied to the toner station.

REFERENCES:
patent: 4431300 (1984-02-01), Snelling
patent: 4648702 (1987-03-01), Goto
patent: 4866481 (1989-09-01), Yamada et al.
patent: 5270784 (1993-12-01), Nakane et al.

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