In accordance with an embodiment, a sheet processing apparatus comprises a processing tray, a longitudinal alignment mechanism, a horizontal alignment mechanism and an interlocking mechanism. The processing tray can stack a sheet. The longitudinal alignment mechanism includes a rotatable paddle. The longitudinal alignment mechanism can align the sheets stacked on the processing tray in a sheet conveyance direction. The horizontal alignment mechanism includes a horizontal alignment plate movable in a sheet width direction orthogonal to the sheet conveyance direction. The horizontal alignment mechanism can align the sheets placed on the processing tray in the sheet width direction. The interlocking mechanism interlocks the paddle in the sheet width direction in synchronization with the movement of the horizontal alignment plate in the sheet width direction.

A processing machine includes at least one further processing unit following at least one processing unit configured as an application unit in a transport direction of a substrate. At least one transport unit is arranged between the at least one processing unit configured as an application unit and the at least one succeeding processing unit. The at least one transport unit includes a plurality of transport elements arranged one behind the other in the transport direction. The plurality of transport elements are individually axially adjustable, or the plurality of transport elements are groupwise axially adjustable.

An elastic body roller which has an excellent non-stick property or release property, and frictional force (gripping force) and is able to stably feed and guide a belt-shaped member such as a linerless label, a typical liner label, or the like is provided. Attention has been paid to coating an outer layer of an inner layer elastic material member having a silicone resin (a outer layer elastic material member) with a C hardness (hardness by a spring-type Asker C type defined in the SRIS 0101 standard) set low. An elastic material member of an elastic body roller has an inner layer elastic material member provided on the outer periphery of a roller shaft, and a outer layer elastic material member provided on the outer periphery of the inner layer elastic material member and being in contact with a belt-shaped member, and the outer layer elastic material member is formed from a silicone resin with a C hardness of 20 degrees or less.

Disclosed are a paper storage and a printer. The paper storage comprises: a warehouse body (20) for accommodating a medium, a medium outlet (A), and a roller (5) arranged on the storage body (20), wherein the medium outlet (A) is configured to discharge the medium accommodated in the storage body (20) after the medium passes by the roller (5), and an opening (224) opposite to the roller (5) is also arranged on a wall of the storage body (20), to allow an external medium processing device to match with the roller (5) through the opening (224) to process the medium. To replace the paper storage in a printer adopting such paper storage, the need for respective detachment of various parts of the paper storage, and the need for opening of the upper cover of the printer to load the paper roll are eliminated, thereby avoiding the problems of complex operations of replacing the paper roll and inconvenience in use.

A medium discharge device includes a discharge driven roller that nips the medium between the discharge driven roller and a discharge drive roller and that rotates drivenly and a first discharge aid member and a second discharge aid member that have a larger diameter than the discharge driven roller and that rotate by torque from the discharge driven roller, wherein the second discharge aid member is positioned to the outside of the first discharge aid member in the width direction, and the torque from the discharge driven roller is transmitted to the second discharge aid member via a shaft and an universal joint.

A sheet processing apparatus includes a shift unit including a pair of first conveying rollers that nip and convey a sheet and being able to move in a width direction orthogonal to a conveyance direction of the sheet in a state of nipping the sheet; a drive gear configured to transmit a driving force from a drive motor; a rack gear including a rack portion that meshes with the drive gear, the rack gear being configured to receive the driving force from the drive gear via the rack portion and, thereby, move the shift unit in the width direction in a state of nipping the sheet with a pair of first conveying rollers; a guide member configured to guide movement of the shift unit in the width direction; and a supporting member configured to nip the rack gear between the supporting member and the drive gear and support the rack gear, in which the rack gear is rotatable with respect to the shift unit on a plane parallel to the conveyance direction and the width direction.