US 2016/0355038 A1 · IMAGE DECOLORING APPARATUS

Abstract

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.

Claims5

Dependent claims

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 a diameter of the first heat roller and a diameter of the second heat roller are substantially equal.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/241,263Filed 19 Aug 2016

Priority

3 Feb 2015

Published

8 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

B41M 5/305
Using chemical colour formers: with reversible electron-donor electron-acceptor compositions
B41J 2/4753
For heating selectively by radiation or ultrasonic waves: using thermosensitive substrates, e.g. paper
B41M 7/0009
After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock: obliterating the printed matter;…
B41M 7/009
After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock: using thermal means, e.g. infrared…

Image decoloring apparatus

Life of this patent

Image decoloring apparatus

Life of this patent

Abstract

Claims5