A sheet feeder includes: a wheel for issuing a lowermost sheet out to a sheet processing unit; a grate for spacing the sheet apart from the wheel at a raised position and bringing the sheet into contact with the wheel at a lowered position; and a drive device for driving the grate up and down. The drive device includes: a link mechanism for movably supporting the grate; a spring for urging the grate to the lowered position; a grate raising/lowering cam for periodically driving the grate up/down; and a skip feed cam that is driven by a control device, separately from a drive system of the grate raising/lowering cam, and that, at a timing where reached is a phase at which the grate raising/lowering cam does not put the grate in the raised position, retains the grate at the raised position in order to skip feeding of the sheet.

A sheet feeder includes: a wheel for issuing a lowermost sheet out to a sheet processing unit; a grate for spacing the sheet apart from the wheel at a raised position and bringing the sheet into contact with the wheel at a lowered position; and a drive device for driving the grate up and down. The drive device includes: a link mechanism for movably supporting the grate; a spring for urging the grate to the lowered position; a grate raising/lowering cam for periodically driving the grate up/down; and a skip feed cam that is driven by a control device, separately from a drive system of the grate raising/lowering cam, and that, at a timing where reached is a phase at which the grate raising/lowering cam does not put the grate in the raised position, retains the grate at the raised position in order to skip feeding of the sheet.

A sheet feeding device, which is included in an image forming apparatus and includes a device attachment body, includes a sheet container configured to accommodate a sheet, a support configured to support a lower face of the sheet in the sheet container, a sheet width regulator configured to regulate a position of the sheet in a sheet width direction, a conveying force applier configured to apply a sheet conveying force in a sheet conveying direction to the sheet in the sheet container, and a sheet guide disposed above the sheet in the sheet container and configured to regulate movement of the sheet in an upper direction.

A sheet feeding device, which is included in an image forming apparatus and includes a device attachment body, includes a sheet container configured to accommodate a sheet, a support configured to support a lower face of the sheet in the sheet container, a sheet width regulator configured to regulate a position of the sheet in a sheet width direction, a conveying force applier configured to apply a sheet conveying force in a sheet conveying direction to the sheet in the sheet container, and a sheet guide disposed above the sheet in the sheet container and configured to regulate movement of the sheet in an upper direction.

A document conveying apparatus includes a first conveying roller for conveying a document stacked on the document tray, a second conveying roller, provided at a downstream side with respect to the first conveying roller, for conveying a document stacked on the document tray, a separation roller, provided at a downstream side with respect to the second conveying roller, for performing separation operation of the document, a driving force transmission mechanism for transmitting the driving force to a driving shaft of the first conveying roller, a driving shaft of the second conveying roller, and a driving shaft of the separation roller, and a first blocking mechanism, provided between the first conveying roller and the driving shaft of the first conveying roller, for blocking a driving force transmitted to the driving shaft of the first conveying roller, for a first certain period of time.

A document conveying apparatus includes a first conveying roller for conveying a document stacked on the document tray, a second conveying roller, provided at a downstream side with respect to the first conveying roller, for conveying a document stacked on the document tray, a separation roller, provided at a downstream side with respect to the second conveying roller, for performing separation operation of the document, a driving force transmission mechanism for transmitting the driving force to a driving shaft of the first conveying roller, a driving shaft of the second conveying roller, and a driving shaft of the separation roller, and a first blocking mechanism, provided between the first conveying roller and the driving shaft of the first conveying roller, for blocking a driving force transmitted to the driving shaft of the first conveying roller, for a first certain period of time.

A media processing device includes: a housing having an opening providing access to a cassette removably supported within the housing; a media unit holder configured to receive a rejected media unit driven between the opening and a body of the cassette along a media reject path; the media unit holder including: a deck having a support surface between a body of the cassette and the opening, the support surface facing the opening; the deck configured to receive the rejected media unit on the support surface for removal of the rejected media unit via the opening.

A media processing device includes: a hopper supporting media units (e.g. cards), and a biasing assembly biasing the cards toward a hopper outlet; an input roller for accepting a single card at a hopper slot inlet; a pick roller at the outlet for dispensing a card from the hopper to a media processing path; a motor having an output shaft; a primary drivetrain segment connecting the output shaft with the pick roller; an auxiliary output selector connected to the primary drivetrain segment and switchable between first and second output configurations; first and second auxiliary drivetrain segments connecting the output selector, respectively, with the input roller and a release member for disengaging the biasing assembly; and a selector input movable to switch the output selector between the first output configuration, coupling the primary and first auxiliary drivetrain segments, and the second output configuration, coupling the primary and second auxiliary drivetrain segments.

A paper sheet processing device that can smoothly send paper sheets into a machine body. A paper sheet or banknote processing device presses banknotes placed in an intake section towards a feed roller by a bill press and takes in the banknotes into a machine body, wherein the bill press comprises a main pressing section that is provided to be movable up and down in the intake section and can press the substantial center of the banknotes, and a first auxiliary pressing section and a second auxiliary pressing section that are provided independently of the main pressing section and can press regions of the banknotes other than the substantial center.

A device for separating value documents, in particular banknotes, includes a receiving device which is designed to receive a stack of value documents, a rotatable separating element which is designed to act temporarily on in each case one value document of the stack and to withdraw the same from the stack, and a drive device which is designed to set the separating element into rotation, and a control device which is designed to control the drive device such that the rotational speed of the rotation, into which the separating element is set by the drive device, is changed, in particular temporarily, during each revolution of the separating element. A method corresponds to the device and to a value document processing system comprising such a device