Patent ID: 8433212
Filing Date: 2013-04-30
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image forming device configured to form a toner image on a sheet; an image heating device configured to contact the toner image on the sheet and configured to heat the toner image on the sheet; a heating device configured to heat said image heating device; a detecting device configured to detect a temperature of said image heating device; a controlling device configured to control said heating device so that the temperature of said image heating device is maintained at a target temperature based on an output of said detecting device; a selecting device configured to select one of plurality of modes including a first mode in which the images are continuously formed on a plurality of thin sheets, a second mode in which the images are continuously formed on a plurality of thick sheets, and a third mode in which the images are continuously formed on a plurality of sheets including the thin sheet and the thick sheet; and a setting device configured to set the target temperature based on the selected mode, wherein the target temperature in the second mode is higher than the target temperature in the first mode, and the target temperature in the third mode is higher than the target temperature in the second mode.