| US 7,611,813 B2 | ||
| Toner and image forming method | ||
| Tetsuya Ida, Mishima (Japan); Takeshi Ootsu, Susono (Japan); Koh Ishigami, Mishima (Japan); Naoki Okamoto, Mishima (Japan); Nozomu Komatsu, Susono (Japan); Noriyoshi Umeda, Susono (Japan); Yoshinobu Baba, Yokohama (Japan); Takayuki Itakura, Mishima (Japan); Takeshi Naka, Susono (Japan); and Hirohide Tanikawa, Suntoh-gun (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jan. 30, 2007, as Appl. No. 11/668,554. | ||
| Application 11/668554 is a continuation of application No. PCT/JP2006/322276, filed on Nov. 08, 2006. | ||
| Claims priority of application No. 2005-323390 (JP), filed on Nov. 08, 2005. | ||
| Prior Publication US 2007/0122727 A1, May 31, 2007 | ||
| Int. Cl. G03G 9/00 (2006.01) | ||
| U.S. Cl. 430—108.3 [430/111.4; 430/110.3; 430/124.1] | 4 Claims |
| 1. A toner comprising at least:
toner particles each containing at least a binder resin, a release agent, and a colorant; and
an inorganic fine powder,
wherein:
(i) a degree of aggregation Y1 at a time of compression (200 kPa) of the toner satisfies a relationship of 15≤Y1≤35, and a degree of aggregation Y2 at a time of non-compression of the toner satisfies a relationship of 7≤Y2≤15; and
(ii) a highest endothermic peak of the toner is present in a temperature range of 30 to 200° C. in an endothermic curve measured
with a differential scanning calorimeter (DSC), and a peak temperature Tsc (° C.) of the highest endothermic peak satisfies
a relationship of 60≤Tsc≤130.
|