Dispensing – With recorder – register – indicator – signal or exhibitor
Patent
1977-06-02
1979-01-23
Scherbel, David A.
Dispensing
With recorder, register, indicator, signal or exhibitor
222DIG1, 350 61, B41F 3106
Patent
active
041356420
ABSTRACT:
A toner dispenser having a rotatable cylindrical dispenser roll and an automatic low toner level indicator comprising a lamp and photocell mounted in opposed walls of the dispenser adjacent the bottom of the dispenser housing. The lamp and photocell are separated from the toner in the dispenser by transparent windows. A wiping arrangement is provided inside the dispenser to periodically clean the windows including wiper pads biased into contact with the windows and movable periodically back and forth across the surface of the windows in response to rotation of the dispenser roll.
REFERENCES:
patent: 3409901 (1968-11-01), Dost et al.
patent: 3475859 (1969-11-01), Pirlet
patent: 3498500 (1970-03-01), Hanson
patent: 3596807 (1971-08-01), Hudson et al.
patent: 3834806 (1974-09-01), Whited
patent: 3844661 (1974-10-01), Birkett et al.
Connolly Douglas P.
Forward John E.
Muller George A.
Scherbel David A.
Xerox Corporation
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