Multiple cartridge keying apparatus

Details Multiple cartridge keying apparatus Multiple cartridge keying apparatus

1995-03-15

1996-06-25

Royer, William J.

Photocopying

Contact printing

Light boxes

222DIG1, G03G 1506

Patent

active

055305318

ABSTRACT:
The present invention insures that the proper color toner used in a color printer is replaced once the present supply is consumed The printer has several of receptacles, one receptacles for each colored toner. Each receptacle has a unique key receptacle. The replacement toner comes in a cartridge, one cartridge for each color of the several of colored toners. A cartridge is constructed from a common body to which an endcap is attached. The endcap has a unique key that mates with only one of the unique key receptacles. Each cartridge is removably inserted in the correct receptacle.

REFERENCES:
patent: 4611899 (1986-09-01), Kasamura et al.
patent: 4907019 (1990-03-01), Stephens
patent: 5293913 (1994-03-01), Preszler

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