Image forming apparatus
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United States of America Patent
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Aug 12, 2014
Grant Date -
May 30, 2013
app pub date -
Nov 13, 2012
filing date -
Nov 30, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An image forming apparatus includes photosensitive drums, electrostatic latent image forming units, developing sleeves, patch detection sensors which detect image densities of the toner images formed by the electrostatic latent image forming units, and toner replenishment units which replenish the developing sleeves with the toner based on the detection results of the patch detection sensors. Further, controllers are provided to control the rotation speeds of the developing sleeves at the time of forming the reference toner image to be higher than the rotation speeds of the developing sleeves at the time of forming a normal image.
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Family
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Cited Art Landscape
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