Electrophotography – Image formation – Development
Patent
1995-12-08
1999-03-23
Smith, Matthew S.
Electrophotography
Image formation
Development
399106, 399119, 222DIG1, G03G 1508
Patent
active
058872329
ABSTRACT:
An apparatus for dispensing toner in an electrophotographic printing system includes a housing for containing a supply of toner and toner filled containers for replenishing the supply of toner. Toner is allowed to flow to a developer assembly in the electrophotographic printing system by removal of a housing toner seal. The bottom of the container is dimensioned so that it can be inserted through the opening in the top of the housing and the opening in the top of another substantially identical container. A toner dam seal is attached to the container to close the bottom opening. In the preferred embodiment, the toner dam seal includes a length of flexible material for use in removal of the toner dam seal. In an alternative embodiment, cutting blades are attached to the interior of the sidewalls of both the housing and the container for cutting the toner dam seal upon installation of the container into the housing or into a previously installed container.
REFERENCES:
patent: 4816877 (1989-03-01), Keen
patent: 4930684 (1990-06-01), Patterson
patent: 5034776 (1991-07-01), Sugiura
patent: 5185616 (1993-02-01), Wilcke
patent: 5341196 (1994-08-01), Hodoshima et al.
patent: 5392963 (1995-02-01), Kelly et al.
Beaufort Richard F.
Christensen K. Trent
Phillips Quintin T.
Yergenson Robin P.
Hewlett--Packard Company
Smith Matthew S.
Wisdom Gregg W.
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