| 摘要 |
PROBLEM TO BE SOLVED: To detect a full state at appropriate timing by performing integration in consideration of curling of each sheet when detecting the full state of an ejection tray on the basis of counting.SOLUTION: An image formation apparatus comprises: an ejection tray; a printing part; a loading control part which obtains a front surface value for a toner amount on a front surface of a sheet and a rear surface value for a toner amount on a rear surface of the sheet, and obtains an absolute value of the difference between the front surface value and the rear surface value for each sheet; and a storage part which stores correction value data defining the magnitude of a correction value in accordance with the absolute value. The loading control part obtains the correction value of each sheet on the basis of the absolute value and correction value data, obtains a correction count value by adding a correction value of a discharged sheet corrected with the correction value to a count value, obtains an integration value by integrating the correction count values, and detects the full state of the ejection tray when the integration value reaches a predetermined upper limit value. |
