Image forming apparatus with cleaning voltage or current control based on density of a control toner image
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United States of America Patent
Stats
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Aug 26, 2014
Grant Date -
Apr 12, 2012
app pub date -
Sep 27, 2011
filing date -
Oct 8, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image forming apparatus includes an image bearing member that is rotatable, a toner image forming portion that is able to form a toner image to be transferred to a transfer material and a control toner image not to be transferred to a transfer material on the image bearing member, a transfer member that transfers the toner image formed on the image bearing member to the transfer material, a detecting portion that detects a density of the control toner image, an adjustment portion that adjusts a toner image formation condition of the toner image forming portion based on an output of the detecting portion, a cleaning member that electrostatically cleans the transfer member, and a controller which changes a voltage or a current to be applied between the transfer member and the cleaning member based on the density of the control toner image.
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