Bearing seal for xerographic developer unit

Details Bearing seal for xerographic developer unit Bearing seal for xerographic developer unit

1995-09-25

1996-07-30

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

384147, G03G 2100

Patent

active

055417108

ABSTRACT:
A bearing unit is used to suspend shafts within a developer unit housing of a xerographic device. An annular bushing is used with a bearing surface to support an end journal of the shaft. The bushing also has a seal retention shoulder which extends axially from the bearing surface portion. An annular sealing member is positioned against the seal retention shoulder such that it remains stationary with the annular bushing. The sealing member includes two or more sealing lips for contacting the end journal with a stagnation zone between the sealing lips. The sealing lips are on deflection arms extending toward the interior of the developer unit housing.

REFERENCES:
patent: 5475467 (1995-12-01), Watanabe et al.
Mita Technical Bulletin DC-4600, Subject: Preventing Developing Roller Shaft From Wearing, Oct. 26, 1993.
Mita SCOOP, vol. 5-No. 4, Sep.-1989.

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