Invention Application
- Patent Title: ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
- Patent Title (中): 静电充电图像显影剂
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Application No.: US12816598Application Date: 2010-06-16
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Publication No.: US20100330491A1Publication Date: 2010-12-30
- Inventor: Kouji SUGAMA , Masahiko NAKAMURA , Masahiro ANNO , Shiro HIRANO , Junya ONISHI , Tatsuya FUJISAKI
- Applicant: Kouji SUGAMA , Masahiko NAKAMURA , Masahiro ANNO , Shiro HIRANO , Junya ONISHI , Tatsuya FUJISAKI
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
- Current Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
- Current Assignee Address: JP Tokyo
- Priority: JP2009153564 20090629
- Main IPC: G03G9/08
- IPC: G03G9/08

Abstract:
Provided is an electrostatic charge image developing toner producing neither halftone image unevenness nor density drop of solid images, even though a large number of print sheets are printed at high temperature and high humidity, and subsequently printing is further carried out at high temperature and high humidity after standing for a long time. Disclosed is an electrostatic charge image developing toner containing 3-10% by weight of at least one metal fluoride selected from the group consisting of sodium fluoride, magnesium fluoride, calcium fluoride, barium fluoride and aluminum fluoride, based on a total weight of the toner.
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