Decoloring method and decoloring device
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorsNorifumi Yagi, Takao Ishida, Kanya Hiroi, Mamoru Nomura
Life of this patent
Estimating the term…
Abstract
A decoloring device according to an embodiment includes a decoloring unit that erases a first image formed with erasable colorant on a first side of a sheet and a second image formed with erasable colorant on a second side of the sheet. A reading unit reads the first and second sides of the sheet and determines whether the first side and the second side are reusable. A single-side reusable paper tray stacks the sheet if the reading unit determines that only one of the first and second sides is reusable. A marking unit adds a mark to the one of the first and second sides that is determined to be not reusable when only one of the first and second sides is determined to be reusable.
Claims20
A decoloring device comprising:
- a decoloring unit configured to erase a first image formed with erasable colorant on a first side of a sheet and a second image formed with erasable colorant on a second side of the sheet;
- a reading unit configured to read the first and second sides of the sheet to determine whether each of the first side and the second side is reusable;
- a single-side reusable paper tray configured to receive the sheet if the reading unit determines that only one of the first and second sides is determined to be reusable;
- and
- a marking unit configured to, when only one of the first and second sides is determined to be reusable, add a mark to the one of the first and second sides that is determined to be not reusable.
A method for sorting sheets comprising:
- reading a first side and a second side of a sheet;
- determining whether one or both of the first side and the second side are reusable;
- when only one of the first and second sides is determined to be reusable, adding a mark to a side of the sheet determined to be not reusable;
- and
- discharging the sheet to one of a single-side reusable paper tray, a both-side reusable paper tray, and a rejected paper tray based on the determination.
A method for sorting sheets comprising:
- reading a first side and a second side of a sheet;
- determining that only one of the first side and the second side is reusable;
- adding a mark to a side of the sheet determined to be not reusable;
- and
- discharging the sheet to a single-side reusable paper tray so that the sheet is stacked on the single-side reusable paper tray with the one of the first and second sides determined to be reusable being oriented in a predetermined orientation.
Dependencies are inferred from the claim text.