Image forming apparatus

摘要

According to one embodiment, an image forming apparatus includes an image forming portion configured to selectively form a toner image on an image bearing member using a developing device including a decolorizable toner or a developing device including an undecolorizable toner, a transfer portion configured to transfer the toner image, which is formed on the image bearing member, onto a transfer material, and a fixing portion configured to fix the toner image, which is transferred by the transfer portion, on the transfer material. The undecolorizable toner has at least a fixing temperature range in a range equal to or higher than a fixing temperature lower limit of the decolorizable toner and lower than decoloring temperature of the decolorizable toner.

主权项

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 fixing temperature ranges of the undecolorizable toner and the decolorizable toner partially has an overlapped temperature range with each other; a heating temperature of the fixing portion is set in the overlapped temperature range.