Image forming apparatus forming image on sheet according to sheet type

An image forming apparatus for a first purpose, configured to form an image on a sheet according to a sheet type, the image forming apparatus comprising:

• a plurality of sheet trays, on each of which a plurality of sheets are placed;
• an image forming device that forms an image on the sheet;
• a control device including a processor, and configured to act, when the processor executes a control program, as a setting device that sets one of first information for defining the sheet type with a plurality of items in association with the image forming apparatus for the first purpose, and second information for defining the sheet type with a fewer number of items than the first information, in association with another image forming apparatus for a second purpose different from the first purpose, as paper definition information for defining the sheet type, with respect to each of the plurality of sheet trays;
• and
• a storage device in which the paper definition information set by the setting device is stored, with respect to each of the sheet trays,
• the control device being configured to further act, when the processor executes the control program, as:
• a conversion device that converts the second information stored in the storage device, to third information of a same format as the first information, when the second information is set with respect to a sheet tray;
• and
• a controller that causes, when the sheet, the sheet type of which has been defined by the second information, is designated as the sheet to be used for an image forming operation by the image forming device, the sheet tray to feed the designated sheet, and causes the image forming device to form an image on the sheet, through a control relevant to the sheet type indicated by the third information.