Invention Grant
US08163450B2 Toner, and image forming apparatus and image forming method using the toner
有权
调色剂,以及使用调色剂的成像设备和图像形成方法
- Patent Title: Toner, and image forming apparatus and image forming method using the toner
- Patent Title (中): 调色剂,以及使用调色剂的成像设备和图像形成方法
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Application No.: US12367750Application Date: 2009-02-09
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Publication No.: US08163450B2Publication Date: 2012-04-24
- Inventor: Hiroyuki Kishida
- Applicant: Hiroyuki Kishida
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company Limited
- Current Assignee: Ricoh Company Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-041105 20080222; JP2008-293063 20081117
- Main IPC: G03G9/08
- IPC: G03G9/08

Abstract:
A toner including toner particles; and external additives including a fatty acid metal salt having an average primary particle diameter of from 0.5 to 1.5 μm; a positively chargeable particulate inorganic material; and a negatively chargeable particulate inorganic material. An image forming apparatus including a photoreceptor bearing an electrostatic image, and a center feed developing device configured to develop the electrostatic image with a developer including the toner to form a toner image, and a transfer device configured to transfer the toner image onto a receiving material preferably fed at a speed of from 500 to 1700 mm/s. An image forming method including forming an electrostatic image, developing the electrostatic image with the center feed developing device using the toner to form a toner image, and transferring the toner image onto a receiving material preferably fed at a speed of from 500 to 1700 mm/s.
Public/Granted literature
- US20090214966A1 TONER, AND IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD USING THE TONER Public/Granted day:2009-08-27
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