Encoded wheel for a toner cartridge

US6295422A · kind A · utility

Assignee

• Lexmark International, Inc. · US

Inventors

• Steven Alan Curry · Nicholasville, US
• Benjamin Keith Newman · Lexington, US
• Earl Dawson Ward, II · Richmond, US
• Phillip Byron Wright · Lexington, US

Key dates

• Filing date: Apr 21, 2000
• Grant date: Sep 25, 2001
• Expiry date: Apr 21, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2221/1838
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An encoded wheel for a toner cartridge including a plate having preprogrammed indicia positioned at locations defined in relation to a clock face, the preprogrammed indicia including a start indicia positioned between about a 5:00 o'clock position and a 6:00 o'clock position, a stop indicia positioned at about a 9:00 o'clock position, at least one preselected cartridge characteristic indicia positioned between the start indicia and the stop indicia, and at least one measurement indicia located between about 200 degrees and about 230 degrees from said 6:00 o'clock position.