Invention Grant
- Patent Title: Toner, toner cartridge, development device, and image forming apparatus
-
Application No.: US16194910Application Date: 2018-11-19
-
Publication No.: US10663876B2Publication Date: 2020-05-26
- Inventor: Takeshi Kojima
- Applicant: Oki Data Corporation
- Applicant Address: JP Tokyo
- Assignee: Oki Data Corporation
- Current Assignee: Oki Data Corporation
- Current Assignee Address: JP Tokyo
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7f4c6c68 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@30b99eb4
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/09 ; G03G9/087

Abstract:
A toner includes binder resin 101 and a coloring agent 102. The coloring agent 102 is configured so that hue of a hue measurement print image printed on a print medium with the toner satisfies −8.6≤a*(Y)≤−7.9 and 93.4≤b*(Y)≤95.4, where a*(Y) and b*(Y) represent an a* value and a b* value of the hue measurement print image and light resistance F of a light resistance measurement print image printed on a print medium with the toner, after an irradiation test in which the light resistance measurement print image is irradiated with light having 0.36 W/m2 spectral irradiance at a wavelength of 340 nm for 663 hours, is higher than or equal to 70%. The toner is configured so that its melt viscosity at 120° C. is higher than or equal to 1400 Pa·s and lower than or equal to 1600 Pa·s.
Public/Granted literature
- US20190163080A1 TONER, TONER CARTRIDGE, DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS Public/Granted day:2019-05-30
Information query