Invention Grant
- Patent Title: Toner set
-
Application No.: US15129330Application Date: 2015-03-26
-
Publication No.: US09958798B2Publication Date: 2018-05-01
- Inventor: Hiroshi Nakatani , Takeru Chiba
- Applicant: ZEON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2014-070204 20140328
- International Application: PCT/JP2015/059472 WO 20150326
- International Announcement: WO2015/174212 WO 20151001
- Main IPC: G03G9/097
- IPC: G03G9/097 ; G03G9/08

Abstract:
There is provided a toner set including a yellow toner, a cyan toner and a magenta toner, the toners each comprising an external additive and colored resin particles comprising a binder resin, a colorant and a charge control agent. An absolute value of an average of q/d for any of the yellow, cyan and magenta toners is expressed by charge amount q (fC) and particle diameter d (μm). It is obtained by measurement using an electric field detachment-type charge amount distribution measurement device. It is in a range of 2.0 to 6.5 fC/10 μm, and a standard deviation (SD) of q/d is 13 fC/10 μm or less. A difference between average values of q/d for any two of the yellow, cyan and magenta toners is 2.0 fC/10 μm or less. A difference (ΔSD) between standard deviations of q/d for the two toners is 5.0 fC/10 μm or less.
Public/Granted literature
- US20170115584A1 TONER SET Public/Granted day:2017-04-27
Information query