A recording device as a processing device includes: a recording unit accommodated in a housing and configured to perform recording on a medium; and a medium accommodating unit that accommodates the medium discharged from the housing. The medium accommodating unit includes: a sheet-shaped accommodating member; a rotating shaft provided inside the housing and to which one end of the accommodating member is connected; and an operating portion provided separably from the housing and to which the other end of the accommodating member is connected. The accommodating member is wound around the rotating shaft and accommodated inside the housing when the operating portion is mounted on the housing. The accommodating member is fed from the rotating shaft so that the medium is accommodated when the operating portion is separated from the housing.

A transmission gear is movable in an axial direction between a first position separated from an output gear and a second position coupled to the output gear in a state where the transmission gear engages with an input gear. The input gear is configured to: by rotating in a first direction by receiving driving force from a drive source, move the transmission gear from the first position to the second position and transmit driving force in the first direction to the output gear via the transmission gear; and by rotating in a second direction, move the transmission gear from the second position to the first position and cancel transmission of driving force to the output gear. The transmission gear is configured to, when the output gear rotates in a state where the transmission gear is located at the first position, not be coupled to the output gear.

A sheet conveyance device includes: a first conveyance path configured to allow a sheet to be conveyed along the first conveyance path; a second conveyance path that extends upward from a branch position in the first conveyance path; a third conveyance path that extends downward from the branch position; a first conveyance roller disposed in the second conveyance path and configured to rotate normally and reversely to convey the sheet; a first drive motor disposed below the branch position; and a first belt disposed in a drive transmission path from the first drive motor to the first conveyance roller and configured to transmit a driving force from the first drive motor to the first conveyance roller.

A recording device as a processing device includes: a recording unit accommodated in a housing and configured to perform recording on a medium; and a medium accommodating unit that accommodates the medium discharged from the housing. The medium accommodating unit includes: a sheet-shaped accommodating member; a rotating shaft provided inside the housing and to which one end of the accommodating member is connected; and an operating portion provided separably from the housing and to which the other end of the accommodating member is connected. The accommodating member is wound around the rotating shaft and accommodated inside the housing when the operating portion is mounted on the housing. The accommodating member is fed from the rotating shaft so that the medium is accommodated when the operating portion is separated from the housing.

A recording device as a processing device includes: a recording unit accommodated in a housing and configured to perform recording on a medium; and a medium accommodating unit that accommodates the medium discharged from the housing. The medium accommodating unit includes: a sheet-shaped accommodating member; a rotating shaft provided inside the housing and to which one end of the accommodating member is connected; and an operating portion provided separably from the housing and to which the other end of the accommodating member is connected. The accommodating member is wound around the rotating shaft and accommodated inside the housing when the operating portion is mounted on the housing. The accommodating member is fed from the rotating shaft so that the medium is accommodated when the operating portion is separated from the housing.

An image forming apparatus including a housing, a sheet cassette, a second roller, a gear train, a pendulum gear, and a stop member. The gear train includes a gear rotatable together with the second roller. The pendulum gear is movable between a meshing position where the pendulum gear is in meshing engagement with the gear train and a separated position where the pendulum gear is separated away from the gear train. The stop member allows the pendulum gear to move from the separated position to the meshing position. In the state where the sheet cassette is at an internal position and the stop member is at the second position, the stop member is out of contact with a part of the sheet cassette in a first direction but contacts the part of the sheet cassette in a second direction.

A sheet conveyance device includes: a first conveyance path configured to allow a sheet to be conveyed along the first conveyance path; a second conveyance path that extends upward from a branch position in the first conveyance path; a third conveyance path that extends downward from the branch position; a first conveyance roller disposed in the second conveyance path and configured to rotate normally and reversely to convey the sheet; a first drive motor disposed below the branch position; and a first belt disposed in a drive transmission path from the first drive motor to the first conveyance roller and configured to transmit a driving force from the first drive motor to the first conveyance roller.

A sheet conveyance device includes: a first conveyance path configured to allow a sheet to be conveyed along the first conveyance path; a second conveyance path that extends upward from a branch position in the first conveyance path; a third conveyance path that extends downward from the branch position; a first conveyance roller disposed in the second conveyance path and configured to rotate normally and reversely to convey the sheet; a first drive motor disposed below the branch position; and a first belt disposed in a drive transmission path from the first drive motor to the first conveyance roller and configured to transmit a driving force from the first drive motor to the first conveyance roller.

A recording device as a processing device includes: a recording unit accommodated in a housing and configured to perform recording on a medium; and a medium accommodating unit that accommodates the medium discharged from the housing. The medium accommodating unit includes: a sheet-shaped accommodating member; a rotating shaft provided inside the housing and to which one end of the accommodating member is connected; and an operating portion provided separably from the housing and to which the other end of the accommodating member is connected. The accommodating member is wound around the rotating shaft and accommodated inside the housing when the operating portion is mounted on the housing. The accommodating member is fed from the rotating shaft so that the medium is accommodated when the operating portion is separated from the housing.

A processing device includes a processing section and a medium receiving section, wherein the medium receiving section has a sheet-like receiving member having flexibility, a pivot shaft coupled to one end of the receiving member, an operation section coupled to the other end of the receiving member and provided separable from the pivot shaft, and a pair of support sections that support both ends of the operation section, and the receiving member is wound around the pivot shaft and housed inside of the housing when the operation section approaches the pivot shaft, and is unwound from the pivot shaft and hangs down receivable the medium when the operation section is separated from the pivot shaft, and is wound around the pivot shaft such that contacting side with the medium is an inner side when the receiving member is wound around the pivot shaft.