- 专利标题： Cyan toner, developer, toner accommodating unit, image forming apparatus, and image forming method
-
申请号： US17336866申请日： 2021-06-02
-
公开(公告)号： US11841679B2公开(公告)日： 2023-12-12
- 发明人: Hiyori Fujino , Keisuke Tada , Shoki Matsuda , Fumihiko Chimoto , Ayumi Satoh
- 申请人： RICOH COMPANY, LTD.
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Grüneberg and Myers, PLLC
- 优先权： JP 20106328 2020.06.19
- 主分类号： G03G9/08
- IPC分类号： G03G9/08 ; G03G9/087 ; G03G15/01
摘要：
A cyan toner is provided. The cyan toner comprises toner particles each comprising a binder resin and a colorant. From 1.0% to 20.0% by number of the toner particles have a CH rate of 7.0% or more in absolute value. The CH rate is calculated from the following formula (1):
CH rate (%)=[(In−Iave)/Iave]×100 Formula (1)
where, in a Raman spectrum of each toner particle, In represents an integrated intensity within a wavenumber region of from 2,600 to 3,180 cm−1 when an intensity at a wavenumber λ within a wavenumber region of from 2,600 to 2,800 cm−1 is s normalized to 1, where a total intensity of all the toner particles is maximum at the wavenumber λ; and Iave represents an average of the In.
CH rate (%)=[(In−Iave)/Iave]×100 Formula (1)
where, in a Raman spectrum of each toner particle, In represents an integrated intensity within a wavenumber region of from 2,600 to 3,180 cm−1 when an intensity at a wavenumber λ within a wavenumber region of from 2,600 to 2,800 cm−1 is s normalized to 1, where a total intensity of all the toner particles is maximum at the wavenumber λ; and Iave represents an average of the In.
公开/授权文献
信息查询
