Universal fuser heating apparatus with effective resistance switched responsive to input AC line voltage

US6870140B2 · kind B2 · utility

Assignee

• Lexmark International, Inc. · US

Inventors

• William Paul Cook · Lexington, US
• Mark K. DeMoor · Lexington, US
• Steven J. Harris · Frankfort, US
• John William Kietzman · Lexington, US
• Gregory McClure · Lexington, US
• Jerry Wayne Smith · Ann Arbor, US

Key dates

• Filing date: May 21, 2003
• Grant date: Mar 22, 2005
• Expiry date: May 21, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/2035
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A plurality of universal fuser heating apparatus embodiments are provided, each of which is capable of receiving any one of a number of input AC line voltages falling within at least two AC line voltage ranges. In each embodiment, the fuser heating apparatus has a first, low effective resistance corresponding to AC line voltages falling within low AC line voltage ranges and a second, high effective resistance corresponding to AC line voltages falling within high AC line voltage ranges.