A conveying device conveys a sheet selectively along a first conveying path and a second conveying path which are connected at a junction into a common path portion. A reading unit reads an image of a sheet conveyed in the common path portion. A shutter is disposed in the second conveying path at a position upstream of the junction in a sheet conveying direction. The shutter is movable between a first position and a second position. The actuator is disposed in the common path portion and movable between a third position and a fourth position in response to the shutter moving between the first position and the second position, respectively. In a case where a detection sensor detects that the actuator is at the fourth position, a controller controls the conveying device to convey the sheet along the second conveying path.

In an image forming system, a hardware processor controls whether the first sheet is conveyed to an upstream side of the image former via a first conveying path which reverses sides of the first sheet or via a second conveying path which does not reverse the sides of the first sheet as well as the first conveying path, when images are formed on both sides of a plurality of the first sheets by the image former, in order to narrow a space between a plurality of the first sheets.

In an image forming system, a hardware processor controls whether the first sheet is conveyed to an upstream side of the image former via a first conveying path which reverses sides of the first sheet or via a second conveying path which does not reverse the sides of the first sheet as well as the first conveying path, when images are formed on both sides of a plurality of the first sheets by the image former, in order to narrow a space between a plurality of the first sheets.

A sheet separating device includes: a lifting nozzle configured to blow air against an end portion of a sheet bundle placed on a sheet loading portion to lift sheets; a separating nozzle configured to separate the sheets; a lifting-nozzle shutter member configured to open and close the lifting nozzle; a separating-nozzle shutter member configured to open and close the separating nozzle; a lifting-shutter driving mechanism configured to drive the lifting-nozzle shutter member; a separating-shutter driving mechanism configured to drive the separating-nozzle shutter member; and an open/close control unit configured to control the lifting-shutter driving mechanism and the separating-shutter driving mechanism such that the lifting-nozzle shutter member and the separating-nozzle shutter member are opened or closed simultaneously.

A sheet separating device includes: a lifting nozzle configured to blow air against an end portion of a sheet bundle placed on a sheet loading portion to lift sheets; a separating nozzle configured to separate the sheets; a lifting-nozzle shutter member configured to open and close the lifting nozzle; a separating-nozzle shutter member configured to open and close the separating nozzle; a lifting-shutter driving mechanism configured to drive the lifting-nozzle shutter member; a separating-shutter driving mechanism configured to drive the separating-nozzle shutter member; and an open/close control unit configured to control the lifting-shutter driving mechanism and the separating-shutter driving mechanism such that the lifting-nozzle shutter member and the separating-nozzle shutter member are opened or closed simultaneously.

A deskew module of a valuable media depository is selectively controlled to operate in two deskew modes of operation. One deskew mode of operation selectively activates a single angle drive idler in a first cell while simultaneously activating a single straight drive idler in second cell, which forces the media to self-align against an edge of the deskew module for exiting the deskew module deskewed.

A deskew module of a valuable media depository is selectively controlled to operate in two deskew modes of operation. One deskew mode of operation selectively activates a single angle drive idler in a first cell while simultaneously activating a single straight drive idler in second cell, which forces the media to self-align against an edge of the deskew module for exiting the deskew module deskewed.

A discharge unit discharges the sheet has an image. A switching unit switches between stacking the sheet discharged from the discharge unit on a stacking unit or conveying the sheet the discharge unit toward an image reading apparatus. A conveyance unit conveys the sheet conveyed via the switching unit to a reading unit. A cooling unit cools the sheet discharged from the discharge unit or cools the reading unit.

A discharge unit discharges the sheet has an image. A switching unit switches between stacking the sheet discharged from the discharge unit on a stacking unit or conveying the sheet the discharge unit toward an image reading apparatus. A conveyance unit conveys the sheet conveyed via the switching unit to a reading unit. A cooling unit cools the sheet discharged from the discharge unit or cools the reading unit.

According to an embodiment, a decoloring device is disclosed. A decoloring unit decolors an image formed with decolorable colorant on a sheet. A reading unit reads a surface of the sheet to determine whether the surface of the sheet is reusable. When the surface of the sheet read by the reading unit is determined to be not reusable, a marking unit adds a mark to the read surface. A first tray receives the sheet on which a mark is added by the marking unit.