Image forming apparatus congigured to form an image by using a recolorable decolorable colorant and undecolorable colorant or anunrecolorable decolorable colorant and fix both colorant at the same time, and method for reuse of sheet

摘要

According to one embodiment, an image forming apparatus includes an image forming section, a fixing device, and a control section. The image forming section forms images on a sheet with a recolorable decolorable colorant and an undecolorable colorant. The fixing device heats the sheet to fix the recolorable decolorable colorant and the undecolorable colorant on the sheet. The control section performs temperature control for the fixing device and fixes the recolorable decolorable colorant and the undecolorable colorant on the sheet at temperature higher than decoloring start temperature of the recolorable decolorable colorant to thereby fix the recolorable decolorable colorant on the sheet in a decolored state and fix the undecolorable colorant on the sheet in a colored state.

主权项

1. An image forming apparatus comprising:
an image forming section configured to form images on a sheet by using both a recolorable decolorable colorant and an undecolorable colorant; a fixing device configured to heat the sheet to fix the recolorable decolorable colorant and the undecolorable colorant on the sheet at the same time; and a fixing-temperature control section configured to perform temperature control for the fixing device and fix the recolorable decolorable colorant and the undecolorable colorant on the sheet at a temperature higher than a decoloring start temperature of the recolorable decolorable colorant to thereby fix the recolorable decolorable colorant on the sheet in a decolored state and fix the undecolorable colorant on the sheet in a colored state.