FIXING DEVICE AND IMAGE FORMING APPARATUS

To prevent attachment of water droplets and foreign substances to a detection surface of temperature detection means by controlling the air current around the temperature detection means, thereby preventing wrong detection of the temperature detection means and a defect in an image.SOLUTION: A fixin...

Full description

Saved in:
Bibliographic Details
Main Author IWATANI NAOKI
Format Patent
LanguageEnglish
Japanese
Published 29.08.2019
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:To prevent attachment of water droplets and foreign substances to a detection surface of temperature detection means by controlling the air current around the temperature detection means, thereby preventing wrong detection of the temperature detection means and a defect in an image.SOLUTION: A fixing device 20 comprises a rotatable fixing member 21, an opposing rotating body 22 that is in contact with the fixing member 21 to form a nip part N with the fixing member 21, and a heat source 23 that heats the fixing member 21, conveys a recording medium P carrying an unfixed image to the nip part N, and fixes the unfixed image to the recording medium. The fixing device is provided with air current generation means 120 that generates an air current F2 directed from a back face 110b toward a detection surface 110a of temperature detection means 110 for the fixing member 21 held by a body structure member 100 of an image forming apparatus 1.SELECTED DRAWING: Figure 3 【課題】定着装置において、温度検知手段の周辺の気流を制御することで温度検知手段の検知面への水滴や異物の付着を防止して温度検知手段の誤検知を防止し、画像の不具合を生じさせない。【解決手段】回転可能な定着部材２１と、定着部材２１と当接することにより定着部材２１との間にニップ部Ｎを形成する対向回転体２２と、定着部材２１を加熱する加熱源２３とを備え、ニップ部Ｎに未定着画像を担持した記録媒体Ｐを搬送して、当該記録媒体に未定着画像を定着する定着装置２０において、画像形成装置１の本体構造部材１００に保持された定着部材２１用の温度検知手段１１０の背面１１０ｂから検知面１１０ａへ向かう気流Ｆ２を発生させる気流発生手段１２０が設けられる。【選択図】図３
Bibliography:Application Number: JP20180025916