Browse Prior Art Database

EFFECTIVELY NON-REFILLABLE COPIER OR PRINTER CARTRIDGE

IP.com Disclosure Number: IPCOM000026683D
Original Publication Date: 1993-Apr-30
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 93K

Publishing Venue

Xerox Disclosure Journal

Abstract

The unauthorized third party refurbishment of combined consumable print cartridges (intended for single use) for reuse in copiers and printers (cartridges with a photoreceptor and materials) is a major problem for Original Equipment Manufacturers (OEM) in the electrographic industry.

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 55% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

EFFECTIVELY NON-REFILLABLE Proposed Classification COPIER OR PRINTER CARTRIDGE
U.S.
Paul F. Morgan C1.355/206
Int. C1. G03g 21/00

The unauthorized third party refurbishment of combined consumable print cartridges (intended for single use) for reuse in copiers and printers (cartridges with a photoreceptor and materials) is a major problem for Original Equipment Manufacturers (OEM) in the electrographic industry.

This can be prevented by a self-destruct mechanism for such single use cartridges. Once actuated, it is impossible to refill and reuse a depleted unit after an original preset use cycle has expired.

A number of mechanical configurations for interposition of a knife edge, pawl or scraper blade with the photoreceptor surface are readily accomplished. For example, a revolution counter attached to either a cartridge photoreceptor or developer roll may be used to manually actuate a simple spring loaded scraper blade. Alternatively, a wind-up reel or fine threaded screw could engage, or release a finger or pin against, the photoreceptor.

Upon engagement, at the predesignated usage limit, the further motion of the photoreceptor surface against the pawl renders the cartridge effectively and permanently unusuable. The scraper blade will scratch the photoreceptor, thereby destroying or reducing print quality. Reproduced images of these scratches will appear if further copies are attempted. Alternatively, a finger can be engaged to actually j...