Patent ID: 8160459
Filing Date: 2012-04-17
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a plurality of sheet trays; an accumulating unit to accumulate therein a correspondence of tray classification information that represents a classification of each of the sheet trays and tray identifiers that are information for identifying each of the sheet trays; a determining unit to determine whether there are overlapping tray identifiers in the accumulating unit, the overlapping tray identifiers being tray identifiers that are common for same tray classification information or different tray classification information; and a changing unit to, when the determining unit determines that there are overlapping tray identifiers, change the overlapping tray identifiers in the accumulating unit so that there are no overlapping tray identifiers, wherein the image forming apparatus further comprises a priority-level accumulating unit to accumulate therein a correspondence of the tray classification information and a priority level of each of the sheet trays, wherein the changing unit is configured to change the overlapping tray identifiers according to the priority level.