| 摘要 |
An image forming apparatus includes: a plurality of trays; a plurality of full-stack detectors; a first storage section; a second storage section; and a controller. The plurality of trays are loaded with first sheets that are output from an image forming section. Each of the plurality of full-stack detectors is provided at one of the plurality of trays, each full-stack detector detecting that a corresponding tray is full of first sheets. The first storage section stores the number of second sheets printed in the past by sheet type. The second storage section stores usage priorities of the trays by sheet type based on the contents stored in the first storage section and a sheet stack capacity of each tray. The controller decides a first tray for outputting a third sheet that is output this time based on the priorities stored in the second storage section.
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