Patent ID: 7937005

Claim:
An image forming apparatus comprising: a designating section for allowing an operator to input a designation of a sheet size of a sheet; a sheet size detecting section for detecting a sheet size of a sheet provided in advance; a storage section for storing image forming driver information associated with a sheet size designated by the designating section; an image forming unit for performing image forming; and a controller for allowing the image forming unit to perform image forming in accordance with the image forming driver information stored in the storage section, wherein the storage section stores driver information associated with each of a plurality of size groups into which a plurality of sets of sheet sizes close to each other are respectively sorted, and the controller allows the image forming unit to perform image forming to a sheet in accordance with image forming driver information associated with the sheet size designated by the designating section when the designated sheet size falls in the size group including a sheet size detected by the sheet size detecting section.