GLOSSINESS IMPARTING DEVICE AND IMAGE FORMATION APPARATUS

• Main Author: AMITA AKIYASU
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2017
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

PROBLEM TO BE SOLVED: To improve the cooling performance of a glossiness imparting device.SOLUTION: A glossiness imparting device 300 includes: a glossiness imparting heating roller 21; an endless belt 24 which is stretched over a plurality of members including the glossiness imparting heating roller 21 and rotates; a glossiness imparting pressure roller 22 which is brought into pressure-contact with the glossiness imparting heating roller 21 via the endless belt 24 and forms a nip part; and cooling means 40 which cools the endless belt 24. The glossiness imparting device makes a recording material P formed with a toner image T enter the nip part and conveys the recording material in the state of contacting the endless belt 24 from the nip part. The cooling means 40 includes a cooling belt 41 which is provided on the inner peripheral side of the endless belt 24 and rotates in the state where a portion thereof is brought into contact with the endless belt 24. The cooling belt 41 is stretched over at least a drive roller 43 applied with the driving force and a cooling roller 42 cooling the cooling belt 41. The roller on the upstream side in the conveyance direction of the recording material P with respect to the cooling roller 42 is the drive roller 43.SELECTED DRAWING: Figure 2 【課題】光沢付与装置の冷却性能を向上する。【解決手段】光沢付与加熱ローラ２１と、光沢付与加熱ローラ２１を含む複数の部材に張架されて回動する無端状ベルト２４と、無端状ベルト２４を介して光沢付与加熱ローラ２１に圧接してニップ部を形成する光沢付与加圧ローラ２２と、無端状ベルト２４を冷却する冷却手段４０と、を有し、トナー画像Ｔが形成された記録材Ｐをニップ部に進入させ、該ニップ部から無端状ベルト２４に接触させた状態で搬送する光沢付与装置３００において、冷却手段４０は、無端状ベルト２４の内周側に設けられ、一部が無端状ベルト２４に接触した状態で回動する冷却ベルト４１を備え、冷却ベルト４１は、少なくとも、駆動力が付与される駆動ローラ４３と、該冷却ベルト４１を冷却する冷却ローラ４２とに張架されており、冷却ローラ４２に対し、記録材Ｐの搬送方向における上流側のローラを駆動ローラ４３としている。【選択図】図２