Decoloring apparatus, image forming apparatus, and decoloring method
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTakayasu Aoki, Koji Imamiya, Noboru Furuyama
Life of this patent
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Abstract
According to one embodiment, a decoloring apparatus includes: a heating rotating member having roughness (Rz) of a surface, which comes into contact with a conveyed sheet, equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm and configured to heat and decolor a decolorable colorant on the sheet; and a pressing member configured to come into press contact with the heating rotating member to form a nip section between the pressing member and the heating rotating member and cooperate with the heating rotating member to nip and convey the sheet.
Claims20
A decoloring apparatus comprising:
- a heating member having roughness (Rz) of a surface, which comes into contact with a conveyed sheet, equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm and configured to heat and decolor a decolorable colorant on the sheet;
- and
- a pressing member configured to come into press contact with the heating member to form a nip section between the pressing member and the heating member and cooperate with the heating member to nip and convey the sheet.
A decoloring apparatus comprising:
- a heating member configured to heat and decolor a decolorable colorant on a sheet;
- a pressing member configured to come into press contact with the heating member to form a nip section between the pressing member and the heating member and cooperate with the heating member to nip and convey the sheet;
- and
- a roller pair configured to nip and convey the sheet further on a downstream side in a sheet conveying direction than the nip section, the roller pair having roughness (Rz) of a surface of a roller, which comes into contact with a printing surface of the sheet, of the roller pair equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm.
An image forming apparatus comprising:
- a heating member having roughness (Rz) of a surface, which comes into contact with a conveyed sheet, equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm and configured to heat a colorant on the sheet and fix the colorant on the sheet or decolor the colorant;
- and
- a pressing member configured to come into press contact with the heating member to form a nip section between the pressing member and the heating member and cooperate with the heating member to nip and convey the sheet.
A decoloring method in a decoloring apparatus including:
- a heating member configured to heat and decolor a decolorable colorant on a sheet;
- and a pressing member configured to come into press contact with the heating member to form a nip section between the pressing member and the heating member and cooperate with the heating member to nip and convey the sheet,
- the method comprising bringing a member having roughness (Rz) of a surface equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm into press contact with a printing surface of the sheet printed with a decolorable colorant in the nip section or a position further on a downstream side in a sheet conveying direction than the nip section.
Dependencies are inferred from the claim text.