A sheet feeder includes: multiple sheet feeding trays each configured to house one or more print media sheets; and a processor configured to cause a sheet feeding tray assigned a top priority to feed a print media sheet after the sheet feeding tray is set up for sheet feeding and a state of the sheet feeding tray is fixed, the top priority being highest among priorities that are assigned to the multiple sheet feeding trays and that are determined in advance with regard to sheet feeding.

A sheet feeding parameter management system includes: a plurality of air sheet feeding apparatuses each including an air sheet feeder that feeds a sheet and enabled to change a sheet feeding parameter; and a management apparatus connected to the plurality of air sheet feeding apparatuses, wherein each of the plurality of air sheet feeding apparatuses includes: a sheet type information acquisitor that acquires sheet type information; and a hardware processor that: adjusts the sheet feeding parameter; and transmits the sheet type information and the sheet feeding parameter to the management apparatus, and the management apparatus includes the hardware processor that: causes a storage to store an adjustment result associated with the sheet type information and the sheet feeding parameter; and sets, based on the adjustment result, for an air sheet feeding apparatus to be processed among the plurality of air sheet feeding apparatuses.

An image forming apparatus, in which an image forming method is performed, includes an image forming device to form an image on a recording medium, a reading device to scan the recording medium having a position detection mark and generate a scanned image, and circuitry to calculate a plurality of correction values to adjust a position of the image to be formed on the recording medium, based on the scanned image. The circuitry is configured to calculate a first correction value based on a first scanned image generated from a first face of the recording medium, calculate a second correction value based on a second scanned image generated from a second face of the recording medium, and calculate a third correction value to adjust a position of an image to be formed on the second face, based on the first scanned image using the first correction value.

A drive apparatus according to the present invention includes a first motor that transmits power to a rotating shaft of a conveyance roller for conveying a sheet, a second motor that transmits power to the rotating shaft of the conveyance roller, a storage that stores information indicating the driving force of the second motor during a period in which the conveyance roller conveys the sheet; and a controller that drives the second motor with the driving force indicated by the information during a period when the conveyance roller conveys the sheet, wherein the controller changes the information stored in the storage according to a load applied to the conveyance roller during the period when the conveyance roller conveys the sheet, and drives the second motor with a driving force indicated by the information after the change during a period when the conveyance roller conveys a next sheet.

An apparatus includes a movable regulation member that regulates a trailing edge side position of a sheet stack stored in a storage portion in a sheet feeding direction, a trailing edge detection portion, movable together with the regulation member, that detects a sheet surface on the trailing edge side of the sheet stack, and a control unit that detects whether the regulation member is positioned to an end surface on the trailing edge side of the sheet stack based on a detection result by the trailing edge detection portion, and that causes a display unit to provide a warning if the regulation member is not positioned to the end surface, wherein, if a predetermined sheet with thicknesses different between leading edge and trailing edge sides thereof in the sheet feeding direction is set by a setting unit, the control unit does not cause the display unit to provide the warning.

An apparatus to select-introduce blank sheets and/or printed materials and corresponding method, comprising a positioning seating, a selector unit and an introduction unit suitable to select and introduce sheets in sequence according to the format and basic weight, maintaining high cadences and at the same time reducing the causes of blockages of the sheets in the apparatus.

A sheet feeding apparatus includes a sheet supporting unit, a sheet feed unit, an air separation unit configured to separate the uppermost sheet by blowing the air onto a side surface of the sheet bundle supported by the sheet supporting unit, a velocity detection unit configured to detect actual velocity of a sheet fed by the sheet feed unit, a drive load detection unit configured to detect an actual drive load for feeding the sheet by the sheet feed unit, and a controller configured to control the sheet feed unit and the air separation unit. In a case where the sheet is fed by the sheet feed unit, the controller is configured to control an operation of the air separation unit depending on the actual velocity of the sheet detected by the velocity detection unit and the actual drive load detected by the drive load detection unit.

Provided is a paper sheet processing system capable of preventing a large number of wrong paper bills put in a paper sheet processing apparatus at one time from being exchanged with clean money. A bill processing apparatus sends information on a total amount of the bills supplied to the bill processing apparatus incorporated in a gaming machine and the number of games played by a player counted by a counter to a management server. The management server compares the total amount with a predetermined amount and if the total amount is higher than the predetermined amount, compares the counted number of games with a predetermined number. If the counted number of games is smaller than the predetermined number, the management server sends a report signal to a management apparatus.

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.

A transport monitoring control device includes a transport unit configured to transport a recording medium while nipping the recording medium, a driving unit configured to drive the transport unit, a detector configured to detect a waveform related to a load of the driving unit when the recording medium enters the transport unit or is discharged from the transport unit, and a determining unit configured to determine whether the recording medium is skewed with respect to the transport unit, based on a waveform width at a height obtained by multiplying a peak value of the waveform by a predetermined coefficient.