Cleaning blade for electrophotographic copying machines or the l

Details Cleaning blade for electrophotographic copying machines or the l Cleaning blade for electrophotographic copying machines or the l

1987-12-23

1989-04-18

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 118652, 430125, 152565, G03G 1508

Patent

active

048231614

ABSTRACT:
The present invention provides a cleaning blade for use in electrophotographic copying machines, facsimile machines, printers or the like which is characterized in that it has a double-layer structure and comprises a contact member made of a poly(urethane)ureamide polymer and to be held in contact with a toner image bearing member, and a support member for the contact member having the same hardness or substantially the same hardness as the contact member and lower than the contact member in glass transition temperature.

REFERENCES:
patent: 4083633 (1978-04-01), Shanly
patent: 4218131 (1980-08-01), Ito et al.
patent: 4247196 (1981-01-01), Ogawa et al.
patent: 4284345 (1981-08-01), Sugiyama et al.
patent: 4417365 (1983-11-01), Murasaki
patent: 4469434 (1984-09-01), Yamazaki et al.
patent: 4537130 (1985-08-01), Theilacker
patent: 4630328 (1986-12-01), Croteau
patent: 4639123 (1987-01-01), Adachi et al.

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