Electrophotography – Image formation – Development
Patent
1995-09-06
1997-04-22
Royer, William J.
Electrophotography
Image formation
Development
G03G 1508
Patent
active
056237189
ABSTRACT:
Doctor blade 1 has a compliant lamination (4) having a resin film backing layer (4a) and conductive layer (4b) abrasive silicon carbide particles and conductive carbon black in a resin binder. The compliant lamination is supported on an aluminum bar 2, having a downwardly extending wall 2b. In use lamination 2 is bent under the support bar at the end of the wall, a direct turn which avoids a wedge configuration where the lamination contacts the developer roller (7). The conductive layer remains conductive as it wears during use and the avoidance of the wedge prevents a build-up of toner at the nip during use, both of which make possible long effective useful operation of this doctor blade.
REFERENCES:
patent: 5085171 (1992-02-01), Aulick et al.
patent: 5170213 (1992-12-01), Yamaguchi et al.
patent: 5428428 (1995-06-01), Haneda
Bracken Peter W.
Brener Jeffery R.
DiGirolamo Martin V.
Stafford Donald W.
Wallin Peter E.
Brady John A.
Lexmark International Inc.
Royer William J.
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