Translucent removable viewing window for optical viewing the lev

Details Translucent removable viewing window for optical viewing the lev Translucent removable viewing window for optical viewing the lev

1997-06-24

1999-03-30

Grimley, Arthur T.

Electrophotography

Cleaning of imaging surface

Having handling of removed material

399 35, 399120, G03G 1500

Patent

active

058900497

ABSTRACT:
A sensing system is disclosed for detecting a full condition within a waste developer system, the sensing system including: a developer waste bottle for receiving and holding waste developer material including toner and carrier deposited therein from the developer system, the developer waste bottle having a translucent, removable viewing window for optical viewing the level of developer material therein, the viewing window comprises a sensing portion in fluid communication with the developer waste bottle, the sensing portion adapted to have developer material flow therein when the magnetic material in the toner waste bottle reaches the predetermined level. A sensor assembly is mounted exterior to the developer waste bottle and in optical communication with the viewing window, the sensor being responsive to the level magnetic material in the developer waste bottle when the magnetic material in the toner waste bottle reaches the predetermined level The sensing portion defines a cavity therein, the cavity being partly enclosed by a protective baffle for preventing airborne toner from depositing in the cavity. The reusable waste bottle is black in color while the removable window is translucent, permitting the use of an optical sensor for determining when the waste has reached the level of the window. Because the bottle is black, it can be easily refurbished by simply removing the window and either cleaning the window or installing a new one.

REFERENCES:
patent: 4711561 (1987-12-01), Tsuruoka
patent: 4768062 (1988-08-01), Tanzawa et al.

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