Browse Prior Art Database

EXTENDED DEVELOPER HOUSING SHOE SEAL

IP.com Disclosure Number: IPCOM000025260D
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 53K

Publishing Venue

Xerox Disclosure Journal

Abstract

In many electrostatographic copying machines, contaminating dirt generated in the developer housing may be carried out of the developer housing and deposited throughout the machine causing contamination of electrical components, lenses, lamps and preventing photoreceptor discharge. The figure illustrates a sealing arrangement in which contamination of the remainder of the machine is minimized. In the figure, the image on the electrostatic latent image on the photoreceptor 10 is developed with developer 12 carried into the development zone by developer roll 14. The developer housing rides against the photoreceptor by means of shoes 16 attached to the end of the developer housing, not interferring with the photo-receptor surface in the center of the drum. The figure illustrates a seal which would seal off the entire end of the developer housing reducing the contamination flow to other parts of the machine. A strip of foam may be fastened to the inside of the shoe and ride on the drum thereby creating a positive developer housing end seal.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

EXTENDED DEVELOPER HOUSING SHOE SEAL U.S. Cl. 355/3DD Edwin J. Davis

Proposed Classification

Int. Cl. G03g 15/00

In many electrostatographic copying machines, contaminating dirt generated in the developer housing may be carried out of the developer housing and deposited throughout the machine causing contamination of electrical components, lenses, lamps and preventing photoreceptor discharge. The figure illustrates a sealing arrangement in which contamination of the remainder of the machine is minimized. In the figure, the image on the electrostatic latent image on the photoreceptor 10 is developed with developer 12 carried into the development zone by developer roll
14. The developer housing rides against the photoreceptor by means of shoes 16 attached to the end of the developer housing, not interferring with the photo- receptor surface in the center of the drum. The figure illustrates a seal which would seal off the entire end of the developer housing reducing the contamination flow to other parts of the machine. A strip of foam may be fastened to the inside of the shoe and ride on the drum thereby creating a positive developer housing end seal.

Volume 9 Number 2 March/April 1984 141

[This page contains 1 picture or other non-text object]

Page 2 of 2

142

  XEROX DISCLOSURE JOURNAL Volume 9 Number 2 March/April 1984

[This page contains 1 picture or other non-text object]