IMAGE DECOLORING APPARATUS

摘要

In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

主权项

1. An image decoloring apparatus, comprising:
a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first decoloring section configured to convey and heat the sheet nipped between a first heat roller and a first press roller which are arranged opposite to each other across the conveyance path; and a second decoloring section configured to be arranged at the downstream side of the first decoloring section on the conveyance path to include a second heat roller and a second press roller, which are arranged opposite to each other across the conveyance path and respectively reversed with respect to the first heat roller and the first press roller, wherein the thickness of the second heat roller is smaller than the thickness of the first heat roller, and a diameter of the first heat roller and a diameter of the second heat roller are substantially equal.