Image forming apparatus and method using an environment detector which changes a test toner image based on a detection result
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United States of America Patent
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Jun 4, 2013
Grant Date -
May 31, 2012
app pub date -
Feb 7, 2012
filing date -
May 22, 2007
priority date (Note) -
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Abstract
An image forming apparatus includes an image carrier, an image forming member, a transferer, a toner image detector, and a controller. The transferer transfers the toner image from the image carrier directly or indirectly onto a recording medium transported by a surface moving member. The toner image detector detects a test toner image formed in a test toner image detection area located at an end portion of the surface moving member. The controller checks a length of the recording medium in a main scanning direction during continuous image formation, and forms the test toner image either in a space between recording media when the length of the recording medium exceeds a length of the surface moving member minus a length of the test toner image detection area in the main scanning direction or otherwise in parallel to the toner image transferred onto the recording medium.
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