Image-forming device
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United States of America Patent
Stats
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Jul 27, 2010
Grant Date -
Jan 10, 2008
app pub date -
Jul 5, 2007
filing date -
Jul 5, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image-forming device includes a cleaning unit, a toner detection unit, a control unit, and a cleaning target member in the housing. The cleaning unit applies a predetermined voltage with a predetermined absolute value to the cleaning target member to remove toner from the cleaning target member through an electrostatic force. The toner detection unit detects an amount of toner on the cleaning target member at least twice to detect a first amount of toner and a second amount of toner. The first amount and the second amount of toner are detected when a first voltage having a first absolute value is applied as the predetermined voltage at a first time and when a second voltage having a second absolute value is applied as the predetermined voltage at a second time. The control unit determines the predetermined absolute value based on the first toner amount and the second toner amount.
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Cited Art Landscape
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