Invention Grant
- Patent Title: Image forming device and image forming apparatus
- Patent Title (中): 图像形成装置和图像形成装置
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Application No.: US12858742Application Date: 2010-08-18
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Publication No.: US08376494B2Publication Date: 2013-02-19
- Inventor: Tetsuro Hirota , Masanori Horike , Shin Kayahara , Osamu Endou , Tomoko Takahashi
- Applicant: Tetsuro Hirota , Masanori Horike , Shin Kayahara , Osamu Endou , Tomoko Takahashi
- 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: JP2009-190579 20090820; JP2010-131029 20100608
- Main IPC: B41J29/38
- IPC: B41J29/38

Abstract:
An image forming device, including a toner bearer including plural linear electrodes located at a first regular pitch in a crosswise direction thereof, flying a toner on the surface thereof between the plural linear electrodes with a pulse voltage thereto to form a floating toner layer; and a substrate including plural hole-electrode combinations arranged in a longitudinal direction of the linear electrodes, each formed of a through-hole and a hole-adjacent electrode located close to the through-hole, wherein the floating toner layer is formed in an area facing the through-hole, and a toner passes through only the through-holes facing a desired image from the floating toner layer with a record on or off voltage, and the plural hole-electrode combinations are lined at a second regular pitch in a crosswise direction of the toner bearer, and the second regular pitch is an integral multiple of the first regular pitch.
Public/Granted literature
- US20110043589A1 IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS Public/Granted day:2011-02-24
Information query
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