An image processing system includes an image forming unit, an image decoloring unit, a first sheet stacking unit, a second sheet stacking unit, a first detector for the first sheet stacking unit, a second detector for the second sheet stacking unit, and a control unit. The control unit controls a transport path of a sheet discharged from one of the image forming unit and the image decoloring unit.

An image processing system includes an image forming unit, an image decoloring unit, a first sheet stacking unit, a second sheet stacking unit, a first detector for the first sheet stacking unit, a second detector for the second sheet stacking unit, and a control unit. The control unit controls a transport path of a sheet discharged from one of the image forming unit and the image decoloring unit.

Method for cleaning a printed band (195) of flexible material, having printing ink at at least one side thereof and is stripped from the printing ink using an apparatus (100) which comprises a cleaning organ.) The method comprises contacting the at least one side of the band (195) that comprises printing ink with a cleaning fluid (599), removing the printing ink that has been contacted with the cleaning fluid (599) with the cleaning organ yielding a cleaned band (195) of flexible material, and removing adhering cleaning fluid (599) from the cleaned band (195) of flexible material;

For effective cleaning the printed band (195) is guided into a bath (121) with cleaning fluid (599), and is stripped from the printing ink in the bath (121) by means of the cleaning organ; and the cleaned band (195) is guided out off the bath (121) and stripped from the adhering cleaning fluid (599).

A sheet sorting device according to an embodiment includes a transporting unit that transports a sheet. A reading unit generates an image of a surface of the sheet. A decoloring unit performs a decoloring processing to decolor an image on the sheet. The sheet sorting device includes a plurality of sheet stacking trays. A processor causes the reading unit to generate an image of the surface of the sheet after the decoloring unit performs the decoloring processing on the sheet. The processor determines a color of the sheet based on the generated image. The processor determines one sheet stacking tray out of the plurality of sheet stacking trays as a transport destination of the sheet, based on the determined color. The transporting unit transports the sheet to the determined sheet stacking tray.

An image processing system includes an image forming unit, an image decoloring unit, a first sheet stacking unit, a second sheet stacking unit, a first detector for the first sheet stacking unit, a second detector for the second sheet stacking unit, and a control unit. The control unit controls a transport path of a sheet discharged from one of the image forming unit and the image decoloring unit.

An image processing system includes an image forming unit, an image decoloring unit, a first sheet stacking unit, a second sheet stacking unit, a first detector for the first sheet stacking unit, a second detector for the second sheet stacking unit, and a control unit. The control unit controls a transport path of a sheet discharged from one of the image forming unit and the image decoloring unit.