Tray selection in printing may involve checking for the availability of paper trays which may provide increased paper throughput, and by postponing a switch to use such trays to help avoid excessive tray switching that could adversely affect paper throughput. When a higher ranked tray is unavailable, tray selection may involve checking the availability of lower ranked trays before the present tray is empty, and by postponing a switch to such trays to help avoid excessive tray switching. A change in printing condition may provide a convenient and opportune time to switch between trays without adversely affecting paper throughput.

An example disclosed output hopper includes a cavity to receive media units from an output of a media processing device, the cavity to cause the media units to form a stack in a first direction; a first door pivotably movable between a closed position and an open position, the first door to retain the media units in the cavity when in the closed position, wherein the first door is configured to pivot on a first axis substantially parallel to the first direction; wherein: the first door includes a first cutout at a first top edge of the first door; and the first cutout allow the media units to spill over the first and second top edges when a capacity of the cavity is exceeded.

An image reading apparatus includes a common transport route, a first and a second transport route, a first and a second image sensor, a first and a second discharge tray, and a controller. The controller executes a first reading mode including guiding the document from the common transport route to the first transport route, reading the image on the first face of the document with the first image sensor, and discharging the document to the first discharge tray, or a second reading mode including reading the image on the second face of the document with the second image sensor, guiding the document from the common transport route to the second transport route, and discharging the document to the second discharge tray, inhibits the first reading mode, upon deciding that the first discharge tray is full, and inhibits the second reading mode, upon deciding that the second discharge tray is full.

A sheet transport device includes a transport unit, a load section, and a sheet accommodation section. The transport unit has a transport path along which a sheet read at a read position is transported to an output unit. The sheet output by the output unit is loaded onto the load section. The sheet accommodation section is disposed downstream in an output direction of the sheet from an inner wall surface extending upward adjacent to the load section and has a recess capable of accommodating a sheet of a predetermined minimum size. A retrieval space through which the sheet accommodated in the sheet accommodation section is retrievable is provided by exposing the transport path in a direction opposite to a loading direction of the sheet.

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.

An image reading apparatus, includes: a supply tray; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth as the document supported by the paper feed tray is decreased, the fourth position being higher than the third position; a first drive source, which generates a drive force; a first rotation body, which moves the movable plate by transmitting the drive force from the first drive source to the movable plate; and a second rotation body, which moves the discharge unit by transmitting the drive force from the first drive source to the discharge unit, wherein a diameter of the first rotation body and a diameter of the second rotation body are different from each other.

An image reading apparatus includes a supply tray which supports sheets and includes a movable plate configured to move in correspondence to reduction in a number of the sheets, a discharge tray which is located below the supply tray; a discharge unit which has a discharge opening for discharging the sheet and moves from a lower position and a higher position in correspondence to reduction in the number of the sheets supported on the supply tray, a controller which controls movements of the movable plate and the discharge unit, and a sheet detection unit which detects whether the sheets supported on the discharge tray is lower than a predetermined height. The controller determines a timing to move the discharge unit from the higher position toward the lower position based on a detection result of the sheet detection unit.

An image reading apparatus includes a supply tray which support sheets and includes a movable plate configured to move in correspondence to reduction in a number of the sheets supported on the supply tray, a discharge tray which is located below the supply tray and supports discharged sheets, a conveyance guide which guides a sheet conveyed from the supply tray toward the discharge tray, a reading sensor which reads an image on the sheet conveyed along the conveyance guide, and a discharge unit having a discharge opening for discharging the sheet to the discharge tray and moves from a third position to a fourth position in correspondence to reduction in the number of the sheets supported on the supply tray. A first timing for which the movable plate is to move and a second timing for which the discharge unit is to move are different.

An image reading apparatus includes: a supply tray; a discharge tray, which is positioned below the supply tray to support the sheet; a conveyance guide, which conveys the sheet from the supply tray to the discharge tray; a reading sensor, which reads an image on the sheet conveyed on the conveyance guide; a discharge unit, which includes a discharge port to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth position, the fourth position being higher than the third position; a first drive source, which generates a drive force; and a second drive source, which generates a drive force, wherein the movable plate is moved by the drive force from the first drive source, and the discharge unit is moved by the drive force from the second drive source.

An image reading apparatus includes: a supply tray, which supports sheets to be supplied and includes a movable plate configured to move from a first position to a second position as the sheet supported by the paper feed tray is decreased, the second position being higher than the first position; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth position as the sheet supported by the paper feed tray is decreased, the fourth position being higher than the third position; and a first drive source, which generates a drive force, wherein the discharge unit is configured to move by receiving the drive force and to transmit the drive force to the movable plate.