Invention Grant
- Patent Title: Developing apparatus for providing developer to an image bearing member and image forming apparatus having the developing apparatus
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Application No.: US16440109Application Date: 2019-06-13
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Publication No.: US10761451B2Publication Date: 2020-09-01
- Inventor: Masahito Kato , Hirokazu Fujino , Naoki Fukushima , Atsushi Toda , Daisuke Baba , Yosuke Kishi , Masaki Hirose
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2282fabc
- Main IPC: G03G15/08
- IPC: G03G15/08 ; G03G15/09

Abstract:
A developing apparatus, includes: a developer bearing member that is rotatable; an moving member configured to move the magnetic developer carried on the developer bearing member before the magnetic developer is restricted by a restricting member, the moving member being rotatable and brought into contact with a surface of the developer bearing member; and a control portion, wherein, at a contact position between the developer bearing member and the moving member, assuming that a moving speed vector of a surface of the developer bearing member is taken as R and a moving speed vector of a surface of the moving member is taken as r, the control portion controls rotational operation of the developer bearing member and the moving member such that a direction of a vector R−r during image formation and a direction of a vector R−r during non-image formation be opposite to each other.
Public/Granted literature
- US20190384206A1 DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS Public/Granted day:2019-12-19
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