Patent ID: 8878884

Claim:
An erasing apparatus for a sheet comprising: a conveying path configured to convey a sheet on which an image is formed with a coloring agent that is erased by heating; a first erasing section positioned on an upstream side of the conveying path, the first erasing section including a first heating plate provided on one surface side of the sheet and a first rotating roller provided to be opposed to the first heating plate, the first heating plate having a flat surface that contacts the sheet and is heated by a first planar heater, the first erasing section being configured to convey the sheet according to rotation of the first rotating roller while holding the sheet between the first heating plate and the first rotating roller and heating the sheet; and a second erasing section positioned on a downstream side of the first erasing section, the second erasing section including a second heating plate provided on the other surface side of the sheet and a second rotating roller provided to be opposed to the second heating plate, the second heating plate having a flat surface that contacts the sheet and is heated by a second planar heater, the second erasing section being configured to convey the sheet according to rotation of the second rotating roller while holding the sheet between the second heating plate and the second rotating roller and heating the sheet.