Image forming apparatus, decoloring apparatus and image forming method
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorMasanaka Mizuno
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Abstract
In one embodiment, an image forming apparatus forms an image on a recording medium using a plurality of decolorable coloring materials having different decoloring conditions. Further, the image forming apparatus forms a mark relating to authority information indicating authority capable of decoloring one of the plurality of decolorable coloring materials for each of the decolorable coloring materials on the recording medium. Further, in another embodiment, a decoloring apparatus grasps the authority information, and decolors the image of the decolorable coloring material, in accordance with the grasped authority information.
Claims20
An image forming apparatus comprising:
- a conveyance device configured to convey a sheet;
- a first image forming unit configured to form a first image using a non-decolorable toner;
- a second image forming unit configured to form a second image using a decolorable toner that is decolored at and above a decoloring temperature;
- a transfer device configured to transfer the first and second images to the sheet conveyed by the conveyance device;
- and
- a processor configured to control the first and the second image forming unit and the transfer device such that the second image formed by the decolorable toner is superposed on at least a part of the first image formed by the non-decolorable toner.
An image forming method carried out by an image forming apparatus, the image forming method comprising:
- conveying a sheet with a conveyance device;
- forming a first image using a non-decolorable toner with a first image forming unit;
- forming a second image using a decolorable toner that is decolored at and above a decoloring temperature with a second image forming unit;
- and
- transferring, with a transfer device, the first and second images to the sheet such that the second image formed by the decolorable toner is superposed on at least a part of the first image formed by the non-decolorable toner.
Dependencies are inferred from the claim text.