There are provided an ink jet printing apparatus and a color conversion processing device that can prevent the generation of offset and blocking and can stably jet ink. A first LUT in which a total amount of ink after conversion is large overall and a second LUT in which a total amount of ink after conversion is small overall are prepared as a look-up table (LUT) that is used in color conversion processing. A LUT to be used is selected according to the number of printed mediums. The first LUT is selected in a case in which the number of printed mediums is smaller than a threshold value, and the second LUT is selected in a case in which the number of printed mediums is equal to or larger than a threshold value.

Systems and methods for aligning preprinted images on a roll of substrate to the moving components of a web press are disclosed. A method in accordance with one embodiment includes determining the speed of the moving components of the press, determining the speed of the web of preprinted images and adjusting the speed of the web of preprinted image to match the speed of the web. In particular embodiments, a press which produces rolls of preprinted material can be modified to change the equivalent cutoff length of the press. In further embodiments, a method of pasting new rolls of material to expiring rolls of material is accomplished by modulating the drive speed of the new roll of material to match the expiring roll of material while at the same time aligning the images on the new roll with the expiring roll.

Systems and methods for aligning preprinted images on a roll of substrate to the moving components of a web press are disclosed. A method in accordance with one embodiment includes determining the speed of the moving components of the press, determining the speed of the web of preprinted images and adjusting the speed of the web of preprinted image to match the speed of the web. In particular embodiments, a press which produces rolls of preprinted material can be modified to change the equivalent cutoff length of the press. In further embodiments, a method of pasting new rolls of material to expiring rolls of material is accomplished by modulating the drive speed of the new roll of material to match the expiring roll of material while at the same time aligning the images on the new roll with the expiring roll.

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.

A medium feeding apparatus includes a driving portion that drives a feeding roller, an arm portion that supports the feeding roller, and a displacement portion that can come into contact with the arm portion. The arm portion displaces the feeding roller between a contact position and a separation position. The contact position is a position where the feeding roller comes into contact with the medium, and the separation position is a position where the feeding roller is separated from the medium. The displacement portion rotates the arm portion to displace the feeding roller from the separation position to the contact position by using forward rotation power from the driving portion, and rotates the arm portion to displace the feeding roller from the contact position to the separation position by using reverse rotation power from the driving portion.

A medium feeding apparatus includes a driving portion that drives a feeding roller, an arm portion that supports the feeding roller, and a displacement portion that can come into contact with the arm portion. The arm portion displaces the feeding roller between a contact position and a separation position. The contact position is a position where the feeding roller comes into contact with the medium, and the separation position is a position where the feeding roller is separated from the medium. The displacement portion rotates the arm portion to displace the feeding roller from the separation position to the contact position by using forward rotation power from the driving portion, and rotates the arm portion to displace the feeding roller from the contact position to the separation position by using reverse rotation power from the driving portion.

A banknote processing apparatus capable of properly storing and dispensing a banknote is provided. The banknote processing apparatus includes: a transport unit that transports a banknote; a long-edge orientation storage unit that receives and stores, in a first orientation, the banknote transported by the transport unit, the first orientation being an orientation in which a short edge of the banknote is a leading edge thereof; a short-edge orientation storage unit that receives and stores, in a second orientation, the banknote transported by the transport unit, the second orientation being an orientation in which a long edge of the banknote is a leading edge thereof; and a control unit that selects, by controlling the transport unit, a storage destination for the banknote transported by the transport unit, from among any of the long-edge orientation storage unit and the short-edge orientation storage unit.

When a discharge count has exceeded a specified number of sheets, a sheet discharge device executes a process of moving down a discharge tray by a specified quantity and thereafter moving up the discharge tray until a top-surface detection part outputs a top-surface detection signal, while clocking a move-up time lasting from a move-up start of the discharge tray until output of the top-surface detection signal by the top-surface detection part. When the move-up time is equal to or less than a reference time, the sheet discharge device makes a next sheet discharged while the top-surface detection part outputs the top-surface detection signal; on the other hand, when the move-up time is more than the reference time, the sheet discharge device executes a correction process of moving down the discharge tray before making the next sheet discharged.

When a discharge count has exceeded a specified number of sheets, a sheet discharge device executes a process of moving down a discharge tray by a specified quantity and thereafter moving up the discharge tray until a top-surface detection part outputs a top-surface detection signal, while clocking a move-up time lasting from a move-up start of the discharge tray until output of the top-surface detection signal by the top-surface detection part. When the move-up time is equal to or less than a reference time, the sheet discharge device makes a next sheet discharged while the top-surface detection part outputs the top-surface detection signal; on the other hand, when the move-up time is more than the reference time, the sheet discharge device executes a correction process of moving down the discharge tray before making the next sheet discharged.