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Browse Prior Art Database

CUSTOMER DADH SENSOR CLEANING TOOL

IP.com Disclosure Number: IPCOM000026841D
Original Publication Date: 1993-Dec-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 102K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a xerographic machine, the photo-optical sensors on the Duplex Automatic Document Handler (DADH) become contaminated with paper dust and can cause a paper misfeed signal. When such misfeed signals occur, a Technical Representative cleans the sensors during a service call. Two approaches are currently used: 1) the DADH is disassembled in order to gain cleaning access to the sensors, or 2) a polyester sheet, with a brush like material attached to it, is manually fed through the document handler to clean the sensors.

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XEROX DISCLOSURE JOURNAL

CUSTOMER DADH SENSOR CLEANING TOOL
Richard C. Hogestyn

Proposed Classification
U.S. C1.355/308 Int. C1. G03g 21/00

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28

XEROX DISCLOSURE JOURNAL Vol18 No 6 NovembedDecember 1993 613

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CUSTOMER DADH SENSOR CLEANING TOOL(Cont'd)

In a xerographic machine, the photo-optical sensors on the Duplex Automatic Document Handler (DADH) become contaminated with paper dust and can cause a paper misfeed signal. When such misfeed signals occur, a Technical Representative cleans the sensors during a service call. Two approaches are currently used: 1) the DADH is disassembled in order to gain cleaning access to the sensors, or 2) a polyester sheet, with a brush like material attached to it, is manually fed through the document handler to clean the sensors.

A customer DADH sensor cleaning tool is proposed to eliminate the service call and provide a means by which the machine operator can periodically clean the sensors as a preventive maintenance procedure. The tool is automatically moved through the DADH during a software diagnostic check.

A top view of the customer DADH sensor cleaning tool 10 is shown in the Figure. Referring specifically to the Figure, the sensor cleaning tool 10 is comprised of two extruded polypropylene fiber brushes 20. The brushes 20 are of low to medium density and ultrasonically bonded to the opposite sides of a 5 1/2 inch x 8 1/2 inch polypropylene sheet 22 having a thickness of approximately 0.005 of a...