Toner and developer, toner container, process cartridge, image forming method and image forming apparatus

• Main Authors: HAGI MASAYASU, NAKAMURA MINORU, MIKURIYA YOSHIHIRO, YAMAMOTO ATSUSHI, NOZAKI CHIYOSHI, KATOH HIROAKI, INOUE MASAHIDE, NOZAKI TSUYOSHI, KADOTA TAKUYA
• Format: Patent
• Language: English
• Published: 22.12.2009
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

A toner including a binder resin, a colorant and a release agent, and satisfying the following relationships (1) and (2): 1.0FT120/FT160 wherein FT120 is a maximum tensile strength (N) when a recording medium having the toner unfixed on is vertically separated from the surface of a substrate having a temperature of 120° C. at a constant speed after pressed thereto at a pressure of 100 kPa, and FT160 is same except that the substrate has a temperature of 160° C.; 1.0<=FP100/FP200 wherein FP100 is a maximum tensile strength (N) when a recording medium having the toner unfixed on is vertically separated from the surface of a substrate having a temperature of 160° C. at a constant speed after pressed thereto at a pressure of 100 kPa, and FP200 is same except that the pressure is 200 kPa.