Electronic printer developing unit with bracket for positioning

Details Electronic printer developing unit with bracket for positioning Electronic printer developing unit with bracket for positioning

1992-03-20

1993-08-03

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355251, 118653, G03G 1508

Patent

active

052333906

ABSTRACT:
A bracket having great rigidity is provided. A magnetic roller is rotatably mounted on the bracket and a doctor blade is fixed to the bracket. A bracket assembly comprising the bracket, the magnetic roller and the doctor blade is fixed to a frame of a developing unit. A gap g between the magnetic roller and the doctor blade is maintained at a predetermined value even if the frame is deformed due to an external force, and thus printing at a constant density is ensured.

REFERENCES:
Patent Abstracts of Japan, vol. 7, No. 146 (P-206) (1291), Jun. 25, 1983 (JP 58-057152).
Patent Abstracts of Japan, vol. 6, No. 92 (P-119) (970), May 29, 1982 (JP 57-026880).
"Magnetic Brush Developer", IBM Technical Disclosure Bulletin, vol. 31, No. 12, May, 1989, pp. 467 and 468, New York, USA.

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