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US 9,971,270 B2Granted
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKenichi Hirota, Taichi Takemura, Tomohisa Itagaki
Life of this patent
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Abstract
Temperature of a printing medium 110 is sufficiently decreased by stopping the printing medium 110 in a discharge path, conveying the printing medium at a low speed, switching a conveyance path, or the like. If the temperature of the printing medium 110 can be sufficiently decreased, the thermochromism phenomenon is suppressed. As a result, it is possible to provide an image forming apparatus capable of achieving highly accurate color matching and color stability.
Claims7
An image forming apparatus comprising;
- an image forming unit configured to form an image on a printing medium;
- a fixing unit configured to fix the image on the printing medium;
- a conveyance unit configured to convey the printing medium along a conveyance path;
- a color measurement unit configured to measure, downstream of the fixing unit in a conveyance direction of the printing medium, a color of the image;
- an obtaining unit configured to obtain information related to the printing medium;
- and
- a controller configured to determine, based on the obtained information, a predetermined time for reducing an influence of thermochromism, and control, based on the predetermined time, the conveyance of the printing medium until the color measurement unit measures the color of the image formed on the printing medium after the printing medium passes the fixing unit.
4 more elements
Dependencies are inferred from the claim text.