Patent · US Active

System and method for detecting a fire in a fixer unit of a printer or copier

US7873288B2 · kind B2 · utility

1Cited by

4References

12Claims

0Family size

Assignee

Oce Printing Systems GmbH · DE

Inventors

Hans Taubenberger · Tegernsee, DE
Roland Wolf · Hersbruck, DE
Kurt Zietlow · Grafing, DE

Key dates

Filing date	Aug 1, 2007
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Dec 21, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/2007
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In a fixer unit system and method to detect a fire in a fixer unit of an electrographic image generation device, at least one portion of a fixer region of the fixing unit is monitored with a photoelectric sensor arranged adjacent to a substrate material having a toner image to be fixed, at least one portion of radiation generated by at least one heat radiator of the fixer unit is not detected by the photoelectric sensor by not passing said at least one portion of the radiation generated by the at least one heat radiator through to the photoelectric sensor by use of an optical filter associated with the photoelectric sensor. An error signal is output when a fire in the fixer region is detected with the photoelectric sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.