IMAGE FORMING APPARATUS

To provide an image forming apparatus that suppresses attachment and accumulation of a toner onto a surface of a fixing roller.SOLUTION: An image forming apparatus comprises: a fixing nip (fixing means) that applies heat and pressure to a toner image to fix the toner image to a sheet; and a fixing r...

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Bibliographic Details
Main Authors OZAKI TAKESHI, ENDO AKITAKA
Format Patent
LanguageEnglish
Japanese
Published 12.12.2019
Subjects
CINEMATOGRAPHY
CONVEYING
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
HOLOGRAPHY
MAGNETOGRAPHY
PACKING
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
STORING
TRANSPORTING
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Summary:To provide an image forming apparatus that suppresses attachment and accumulation of a toner onto a surface of a fixing roller.SOLUTION: An image forming apparatus comprises: a fixing nip (fixing means) that applies heat and pressure to a toner image to fix the toner image to a sheet; and a fixing roller 106a (driven rotating body) that is arranged downstream of the fixing nip in a sheet conveyance direction and has its rotation shaft 106a9 provided inclined with respect to the sheet conveyance direction. The fixing roller 106a includes a contact part 106a3 that is in contact with an image surface (transfer surface) to which the toner image on the sheet is transferred, and at least one slits 106a7 and 106a8 (groove parts) that are notched in a direction orthogonal to an axial direction of the rotation shaft 106a9 and form a gap with the sheet.SELECTED DRAWING: Figure 7 【課題】定着コロの表面へのトナーの付着・堆積を抑制した画像形成装置を提供する。【解決手段】トナー像を加熱及び加圧することでシートに定着させる定着ニップ（定着手段）と、定着ニップよりシート搬送方向における下流に配置されると共に、その回転軸１０６ａ９がシート搬送方向に対して傾斜して設けられる定着コロ１０６ａ（従動回転体）と、を備える。定着コロ１０６ａは、シートのトナー像が転写された画像面（転写面）に接触する接触部１０６ａ３と、回転軸１０６ａ９の軸方向に直交する方向に切り欠かれ、シートとの間に空隙を存する少なくとも１つのスリット１０６ａ７，１０６ａ８（溝部）と、を有する。【選択図】図７
Bibliography:Application Number: JP20190164128