Invention Grant
US07593653B2 Optical sensor system with a dynamic threshold for monitoring toner transfer in an image forming device
有权
具有用于监测图像形成装置中的调色剂转印的动态阈值的光学传感器系统
- Patent Title: Optical sensor system with a dynamic threshold for monitoring toner transfer in an image forming device
- Patent Title (中): 具有用于监测图像形成装置中的调色剂转印的动态阈值的光学传感器系统
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Application No.: US11843328Application Date: 2007-08-22
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Publication No.: US07593653B2Publication Date: 2009-09-22
- Inventor: John Parker Richey , David Feinauer , Mark Alan Stuart
- Applicant: John Parker Richey , David Feinauer , Mark Alan Stuart
- Applicant Address: US KY Lexington
- Assignee: Lexmark International, Inc.
- Current Assignee: Lexmark International, Inc.
- Current Assignee Address: US KY Lexington
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
A method and device for monitoring toner transfer within an image forming device is described herein. A reflectivity sensor senses movement of a toner transfer gear operatively connected to a toner transfer system. A threshold unit generates a dynamic threshold based on the output of the reflectivity sensor. In one embodiment, the threshold unit generates the dynamic threshold based on a time delayed average of the sensor output. An instantaneous sensor output is compared to the dynamic threshold. Based on the comparison, the device determines the how much the toner transfer gear has rotated, and therefore, how much toner has been transferred from the toner cartridge.
Public/Granted literature
- US20090052911A1 Optical Sensor System With A Dynamic Threshold For Monitoring Toner Transfer In An Image Forming Device Public/Granted day:2009-02-26
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