Invention Application
- Patent Title: ELECTROPHOTOGRAPHIC TONER, ELECTROPHOTOGRAPHIC DEVELOPER, TONER CARTRIDGE, AND IMAGE FORMING METHOD
- Patent Title (中): 电子印刷墨粉,电子显影剂,墨粉盒和图像形成方法
-
Application No.: US12046957Application Date: 2008-03-12
-
Publication No.: US20090011347A1Publication Date: 2009-01-08
- Inventor: Katsumi DAIMON , Yutaka SUGIZAKI , Susumu YOSHINO , Hiroshi NAKAZAWA
- Applicant: Katsumi DAIMON , Yutaka SUGIZAKI , Susumu YOSHINO , Hiroshi NAKAZAWA
- Applicant Address: JP Tokyo
- Assignee: FUJI XEROX CO., LTD.
- Current Assignee: FUJI XEROX CO., LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2007-176475 20070704
- Main IPC: G03G13/14
- IPC: G03G13/14 ; G03G9/087 ; G03G9/097

Abstract:
The invention provides an electrophotographic toner having a crystalline polyester resin; a non-crystalline polyester resin; a colorant; and a releasing agent. A resin (i), that is included in a toluene-soluble component of the toner and having a molecular weight of 30,000 to 100,000 as measured by gel permeation chromatography relative to polystyrene standards, has an acid value A. A resin (ii), that is included in a toluene-soluble component of the toner and having a molecular weight of 8,000 to 12,000 as measured by gel permeation chromatography relative to polystyrene standards, has an acid value B. A resin (iii), that is included in a toluene-insoluble component of the toner, has an acid value C. The acid values A, B, and C satisfy the inequation of B>A>C. The invention further provides an electrophotographic developer using the toner, a toner cartridge storing the toner, and an image forming method using the developer.
Public/Granted literature
- US08512926B2 Electrophotographic toner, electrophotographic developer, toner cartridge, and image forming method Public/Granted day:2013-08-20
Information query