Invention Grant
US07995935B2 Developer device, image forming apparatus, and toner replenishment method
有权
显影装置，图像形成装置和调色剂补充方法
- Patent Title: Developer device, image forming apparatus, and toner replenishment method
- Patent Title (中): 显影装置，图像形成装置和调色剂补充方法
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Application No.: US12621566Application Date: 2009-11-19
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Publication No.: US07995935B2Publication Date: 2011-08-09
- Inventor: Masanori Okada
- Applicant: Masanori Okada
- Applicant Address: JP
- Assignee: Kyocera Mita Corporation
- Current Assignee: Kyocera Mita Corporation
- Current Assignee Address: JP
- Agent Gerald E. Hespos; Michael J. Porco
- Priority: JP2008-299038 20081125
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
A differential sensitivity calculation portion calculates the differential sensitivity D of a toner concentration sensor, using an output voltage V1 and V2 of the toner concentration sensor when a toner chamber is in a state of toner concentration T1 and T2 at the time of initial operation of a printer, or at some other time. A toner replenishment control portion takes as input a current output voltage Vs output from the toner concentration sensor, calculates the toner concentration in the toner chamber using the output voltage Vs and the differential sensitivity D calculated by the differential sensitivity calculation portion, and outputs a control signal to a toner replenishment motor so as to maintain the toner concentration in the toner chamber at an appropriate concentration.
Public/Granted literature
- US20100129092A1 DEVELOPER DEVICE, IMAGE FORMING APPARATUS, AND TONER REPLENISHMENT METHOD Public/Granted day:2010-05-27
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