Browse Prior Art Database

ALIGNMENT MARK FOR CLEANING BLADES

IP.com Disclosure Number: IPCOM000026838D
Original Publication Date: 1993-Dec-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 66K

Publishing Venue

Xerox Disclosure Journal

Abstract

Mid volume xerographic copiers and printers use a blade cleaning system to scrape or wipe toner from a photoreceptor surface. The cleaning blade, which is normally a strip of urethane material, is fixed to an inexpensive and simple holder having no moving parts. The cleaning blade is held in position by frictional contact. Installation of a blade to the respective holder is accomplished by manual insertion of the blade into a channel, in the holder, until the blade reaches a maximum penetration depth along its entire length. Since the blade is a pliable material and naturally resists insertions, a skewed alignment problem is often encountered which ultimately causes uneven wear and premature failure. A skewed cleaning blade can also cause photoreceptor tracking problems and premature failure of the photoreceptor. To alleviate the problems associated with a misaligned cleaning blade, it is proposed that a reference line be printed on the cleaning blade to indicate proper seating of the blade in its holder. As shown in the Figure, cleaner blade 10 possesses an alignment mark 20. The alignment mark is applied to the blade at the same time a lot number 22 is printed during a manufacturing process.

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XEROX DISCLOSURE JOURNAL

ALIGNMENT MARK FOR CLEANING BLADES Crystal A. Martin

Proposed Classification
U.S. C1.355/299 Int. C1. G03g 21/00

22 20

10

f

M 5977

XEROX DISCLOSURE JOURNAL Vol18 No 6 NovembedDecember 1993 607

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

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ALIGNMENT MARK FOR CLEANING BLADES(Cont'd)

Mid volume xerographic copiers and printers use a blade cleaning system to scrape or wipe toner from a photoreceptor surface. The cleaning blade, which is normally a strip of urethane material, is fixed to an inexpensive and simple holder having no moving parts. The cleaning blade is held in position by frictional contact. Installation of a blade to the respective holder is accomplished by manual insertion of the blade into a channel, in the holder, until the blade reaches a maximum penetration depth along its entire length. Since the blade is a pliable material and naturally resists insertions, a skewed alignment problem is often encountered which ultimately causes uneven wear and premature failure. A skewed cleaning blade can also cause photoreceptor tracking problems and premature failure of the photoreceptor. To alleviate the problems associated with a misaligned cleaning blade, it is proposed that a reference line be printed on the cleaning blade to indicate proper seating of the blade in its holder. As shown in the Figure, cleaner blade 10 possesses an alignment mark 20. The alignment mark is applied to the blade at the same time a lo...