A decurling device includes a first conveyance path, a second conveyance path, a first switch, a decurler, and a controller. A sheet is conveyed along the first conveyance path or the second conveyance path. The first switch switches a route of conveyance of the sheet to the first conveyance path or the second conveyance path. The sheet has a first main surface and a second main surface. The decurler is located in the second conveyance path. The decurler corrects curl of the sheet. In a situation in which a weight per unit area of the sheet is smaller than a first threshold value, the controller controls the first switch such that the sheet is conveyed along the second conveyance path.

A leveling apparatus used in a cutting process after forming process of a pouch-type secondary battery, and the leveling apparatus includes: a roller assembly having pairs of upper rollers and lower rollers arranged in at least two rows for rolling in contact with upper and lower surfaces adjacent to both rim edges of the pouch-type secondary battery; and a support frame supporting the roller assembly, wherein the roller assembly applies rolling with respect to the upper and lower surfaces adjacent to both rim edges of the pouch-type secondary battery to thereby remove stress.

A roller assembly for transporting a substrate includes a step roller and a plurality of first auxiliary rollers. The step roller includes a main roller, and a pair of edge rollers sleeved on the main roller and located on two opposite ends of the main roller, respectively. The plurality of first auxiliary rollers are disposed on two opposite sides of the step roller, respectively. A first film forms a closed loop through the first film being rolled on the plurality of first auxiliary rollers and the step roller cyclically. A method using the same is also provided.

A roller assembly for transporting a substrate includes a step roller and a plurality of first auxiliary rollers. The step roller includes a main roller, and a pair of edge rollers sleeved on the main roller and located on two opposite ends of the main roller, respectively. The plurality of first auxiliary rollers are disposed on two opposite sides of the step roller, respectively. A first film forms a closed loop through the first film being rolled on the plurality of first auxiliary rollers and the step roller cyclically. A method using the same is also provided.

A web handling system is disclosed. The web handling system includes a roller wheel including two or more rollers configured to engage a print medium, a motor to rotate the roller wheel and a controller to transmit a signal to the motor indicating which of the two or more rollers are to engage the print medium.

A web handling system is disclosed. The web handling system includes a roller wheel including two or more rollers configured to engage a print medium, a motor to rotate the roller wheel and a controller to transmit a signal to the motor indicating which of the two or more rollers are to engage the print medium.

A sheet medium flattening device includes a mounting frame configured to mount and support following components; an annular passage, including an annular inner passage plate and an annular outer passage plate, a heating module arranged in a hollow inner cavity of the inner passage plate to supply heat for the inner passage plate; at least one pinch roller arranged at an outer side of the annular guiding plate and realizing clamping with the inner passage plate through a hole slot arranged in the annular guiding plate; a reversing mechanism configured to selectively convey banknotes between the conveying passage and the annular passage of the flattening device; a driving device configured to drive the inner passage plate to rotate; and a control system configured to control a temperature of the heating module and control a selectively switchover of the reversing mechanism.

A sheet medium flattening device includes a mounting frame configured to mount and support following components; an annular passage, including an annular inner passage plate and an annular outer passage plate, a heating module arranged in a hollow inner cavity of the inner passage plate to supply heat for the inner passage plate; at least one pinch roller arranged at an outer side of the annular guiding plate and realizing clamping with the inner passage plate through a hole slot arranged in the annular guiding plate; a reversing mechanism configured to selectively convey banknotes between the conveying passage and the annular passage of the flattening device; a driving device configured to drive the inner passage plate to rotate; and a control system configured to control a temperature of the heating module and control a selectively switchover of the reversing mechanism.

A medium flattening method, when a medium is transported by being adhered to an adhesive layer which is on a surface of a transport belt, includes detecting a presence or absence of floating being generated in the medium on the transport belt using a sensor, executing a process for flattening to flatten the floating in the medium in the case where the floating exists, and transporting the medium, where the floating is eliminated using the process for the flattening, to a liquid discharge region of a liquid discharge section. The executing of the process for the flattening includes executing the process for the flattening with regard to the medium and liquid discharge with regard to the medium in parallel.

A medium flattening method, when a medium is transported by being adhered to an adhesive layer which is on a surface of a transport belt, includes detecting a presence or absence of floating being generated in the medium on the transport belt using a sensor, executing a process for flattening to flatten the floating in the medium in the case where the floating exists, and transporting the medium, where the floating is eliminated using the process for the flattening, to a liquid discharge region of a liquid discharge section. The executing of the process for the flattening includes executing the process for the flattening with regard to the medium and liquid discharge with regard to the medium in parallel.