Image forming apparatus and image forming system
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United States of America Patent
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Feb 23, 2016
Grant Date -
Jun 25, 2015
app pub date -
Dec 12, 2014
filing date -
Dec 19, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image forming apparatus includes an image bearing member, a process member that acts on the image bearing member, a voltage application unit that applies a voltage to the process member, a current detection unit that detects an electric current that flows to the image bearing member, and a control unit that causes the voltage application unit to apply voltages respectively having positive and negative polarities to the process member, to determine a surface potential of the image bearing member based on a detection result acquired by the current detection unit, and to output information about a usage amount of the image bearing member according to the determined result.
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