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MOVING DOOR TO REMOVE CLEANER BRUSH CONTACT FROM THE PHOTORECEPTOR

IP.com Disclosure Number: IPCOM000027529D
Original Publication Date: 1997-Aug-31
Included in the Prior Art Database: 2004-Apr-08
Document File: 6 page(s) / 248K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a method to disengage brush cleaning elements from a flexible belt photoreceptor to allow image on image, multi-pass color development. The method to accomplish this disengagement is to separate the brush from the photoreceptor by sliding or pivoting a door into position between the cleaning brush and the photoreceptor. The moving door disclosed herein is a low cost, low mass method to disengage the brush from the photoreceptor without changing the photoreceptor belt path and without the complication of moving the cleaner housing.

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Page 1 of 6

XEROX DISCLOSURE JOURNAL

MOVING DOOR TO REMOVE CLEANER BRUSH CONTACT FROM THE PHOTORECEPTOR Int. C1. G03g 15/20

Bruce E. Thayer

Proposed Classification
U. S. C1. 3991123

FIG. 7a

3

FIG. 7b

XEROX DISCLOSURE JOURNAL - Vol. 22, NO. 4 July/August 1997

187

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Page 2 of 6

MOVING DOOR TO REMOVE CLEANER BRUSH CONTACT FROM THE PHOTORECEPTOR (CONT'D)

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FIG. Id

188 XEROX DISCLOSURE JOURNAL - Vol. 22, NO. 4 July/AugW 1997

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

Page 3 of 6

MOVING DOOR TO REMOVE CLEANER BRUSH CONTACT FROM THE PHOTORECEPTOR (CONT'D)

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Disclosed is a method to disengage brush cleaning elements from a flexible belt photoreceptor to allow image on image, multi-pass color development. The method to accomplish this disengagement is to separate the brush from the photoreceptor by sliding or pivoting a door into position between the cleaning brush and the photoreceptor. The moving door disclosed herein is a low cost, low mass method to disengage the brush from the photoreceptor without changing the photoreceptor belt path and without the complication of moving the cleaner housing.

XEROX DISCLOSURE JOURNAL - Vol. 22, NO. 4 July/AuguSt 1997 189

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

Page 4 of 6

MOVING DOOR TO REMOVE CLEANER BRUSH CONTACT FROM THE PHOTORECEPTOR (CONT'D)

In the image on image, multi-pass color development process, four layers of color toner (black, cyan, yellow and magenta) are developed onto the photoreceptor before transfer to paper. A separate cycle of the photoreceptor is required to accomplish the development of each color toner layer. To avoid disturbance of these images as the color toner layers are being developed the cleaning elements must be disengaged from the photoreceptor surface until the four toner layers have been developed and transferred to paper. After the toner image has been transferred to paper the cleaning elements must be reengaged to the photoreceptor to clean any residual toner which failed to transfer. In order to maintain a high productivity level, the cleaning elements should disengage and engage the photoreceptor within the space of the interdocument gaps. This requires that the disengagement and engagement occur over fairly short time periods which will depend on the length of the interdocument zone and on the photoreceptor process speed.

Moving a thin door between the photoreceptor and the cleaning brush is proposed as a method to disengage the brush from the photoreceptor. The motion of the door 1 could be sliding, either linearly as indicated in Figure l(a)(b) or in a curved track, or pivoting about an appropriate pivot point, as indicated in Figure l(c)(d). Examples of these concepts are shown in schematic in Figure 1. The cleaning apparatus 6 includes thin door 1, casing 2, and cleaning brush 4 including core 5. The device is positioned to face the photoreceptor surface 3....