Invention Grant
US08478142B2 Image forming apparatus and toner sensor status sensing method thereof and determination of agitator abnormality
有权
图像形成装置和调色剂传感器状态检测方法以及搅拌器异常的确定
- Patent Title: Image forming apparatus and toner sensor status sensing method thereof and determination of agitator abnormality
- Patent Title (中): 图像形成装置和调色剂传感器状态检测方法以及搅拌器异常的确定
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Application No.: US11935580Application Date: 2007-11-06
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Publication No.: US08478142B2Publication Date: 2013-07-02
- Inventor: Han-sang Oh
- Applicant: Han-sang Oh
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim, LLP
- Priority: KR10-2007-0012398 20070206
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
An image forming apparatus which comprises a developing unit having a toner and a developer therein, the apparatus includes a toner sensor to receive a control voltage and to generate an output voltage corresponding to a remaining amount of the toner in the developing unit, a pulse width modulator to supply the control voltage to the toner sensor corresponding to a pulse width modulation (PWM) signal and a controller to control the pulse width modulator to supply the control voltage to the toner sensor to adjust a duty ratio of the PWM signal and make the output voltage reach a target value.
Public/Granted literature
- US20080187330A1 IMAGE FORMING APPARATUS AND TONER SENSOR STATUS SENSING METHOD THEREOF Public/Granted day:2008-08-07
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