Tearable sealing member, developing apparatus and process cartri

Details Tearable sealing member, developing apparatus and process cartri Tearable sealing member, developing apparatus and process cartri

1997-01-07

1999-06-01

Beatty, Robert

Electrophotography

Internal machine environment

Particle or contaminant control

G03G 1508

Patent

active

059096063

ABSTRACT:
A tearable sealing member for unsealably sealing an opening of a developer container for containing a developer for an image forming apparatus includes a seal film for closing the opening, a flexible tape extending along a surface of the seal film, wherein the seal film is an uniaxially orientated foamed resin material and has an average density of not less than 0.65 g/cc and not more than 0.9 g/cc, measured under JIS K6758, and wherein the seal has a heat contraction rate in the orientated direction of not less than 10% and not more than 10%.

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patent: 5585895 (1996-12-01), Yashiro et al.

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