Patent ID: 8849161
Filing Date: 2014-09-30
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a developing device configured to include a decolorizable toner; a developing device configured to include an undecolorizable toner; a control portion configured to selectively switch between a mode for forming an image with the decolorizable toner on a transfer material and a mode for forming an image with the undecolorizable toner on a transfer material; and a fixing portion configured to heat and fix the image formed with the decolorizable toner or undecolorizable toner on the transfer material, wherein the undecolorizable toner has a fixing temperature range of which an upper limit is higher than an upper limit of a fixing temperature range of the decolorizable toner, the fixing temperature ranges of the undecolorizable toner and the decolorizable toner partially overlap with each other, and the undecolorizable toner has at least the fixing temperature range in a range lower than a decoloring temperature of the decolorizable toner; a heating temperature of the fixing portion is set in the overlapped temperature range.