Smoke detecting device, flash fusing device, image forming...

Details Smoke detecting device, flash fusing device, image forming... Smoke detecting device, flash fusing device, image forming...

2007-04-30

2009-08-11

Gray, David M (Department: 2852)

Electrophotography

Diagnostics

Fixing

C399S091000, C399S094000, C399S336000

Reexamination Certificate

active

07574151

ABSTRACT:
A smoke detecting device including: a light-emitting portion that emits light; a light-receiving portion that receives scattered light resulting from the light which the light-emitting portion emits being scattered by smoke generated from a recording medium on which flash-light is irradiated from a flash fusing device; and a judging section that acquires a light amount signal of the received light, from the light-receiving portion, and that judges, on the basis of the light amount signal, whether or not smoke has been generated from the recording medium on which flash-light is irradiated from the flash fusing device, the light that the light-emitting portion emits passing through a space between the flash fusing device and the recording medium, is provided.

REFERENCES:
patent: 5477218 (1995-12-01), Manmoto et al.
patent: 2005/0286916 (2005-12-01), Nakazato et al.
patent: 2007/0097372 (2007-05-01), Itagaki
patent: A 7-319322 (1994-05-01), None
Machine Translation of JP 07-319322 A.

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