A printer includes a guide frame, a deforming section, and a lever member. The guide frame includes a transport path. The deforming section includes a toothed roller, a supporting holder, and a torsion spring and deforms paper. The toothed roller comes into contact with the paper discharged from the transport path. The supporting holder is configured to pivot between a first position at which the toothed roller is located on the transport path and a second position at which the toothed roller is not located on the transport path. The torsion spring presses the supporting holder from the second position to the first position. The lever member is configured to switch between a regulating state in which pivoting of the supporting holder at the first position or the second position is regulated and a non-regulating state in which pivoting of the supporting holder is not regulated.

In an inkjet printer, a controller is configured to calculate, during movement of a carriage in a scanning direction, a signal level difference between a first detection signal in a mountain peak zone including an assumed mountain peak position and the first detection signal in a valley bottom zone including an assumed valley bottom position identified, based on information stored in a storage, and alternately execute, during the movement of the carriage, an ejection process of ejecting ink drops, and a conveying process of conveying the sheet by a predetermined line feed width. In the printing process, the printing head and the conveyor are driven according to a first condition when the signal level difference is equal to or larger than a threshold value, while driven according to a second condition when the signal level difference is less than the threshold value.

In an inkjet printer, a controller is configured to calculate, during movement of a carriage in a scanning direction, a signal level difference between a first detection signal in a mountain peak zone including an assumed mountain peak position and the first detection signal in a valley bottom zone including an assumed valley bottom position identified, based on information stored in a storage, and alternately execute, during the movement of the carriage, an ejection process of ejecting ink drops, and a conveying process of conveying the sheet by a predetermined line feed width. In the printing process, the printing head and the conveyor are driven according to a first condition when the signal level difference is equal to or larger than a threshold value, while driven according to a second condition when the signal level difference is less than the threshold value.

A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transport unit includes an abutting member disposed inside the belt, the abutting member pressing the belt from an inside of the belt and causing the belt to abut against the transport roller, and a guide member, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction, each of the upstream protrusion and the downstream protrusion protruding toward an inner surface of the belt, and a recess provided in an intermediate portion between the upstream protrusion and the downstream protrusion in the sheet transport direction, the recess being recessed away from a straight line connecting a top portion of the upstream protrusion and a top portion of the downstream protrusion, the guide member includes a contact surface that is in contact with the inner surface of the belt, the contact surface defining a part of a circulation track of the belt, and the upstream protrusion protrudes beyond a virtual circle that is tangent to the contact surface.

A decurling device includes: a first transport unit including a transport roller, the first transport unit that sandwiches a transported sheet and transports the transported sheet further downstream; and a second transport unit including an endless belt that is in contact with the transport roller. The transport roller has an elasticity that, when the belt is pressed against the transport roller, allows the belt to bite into the transport roller by a bite amount corresponding to a pressing force, the second transport unit includes an abutting member disposed inside the belt, the abutting member pressing the belt from an inside of the belt and causing the belt to abut against the transport roller, and a guide member, the abutting member includes an upstream protrusion, an downstream protrusion, the upstream protrusion and the downstream protrusion being provided at positions away from each other at an upstream portion and a downstream portion in a sheet transport direction, each of the upstream protrusion and the downstream protrusion protruding toward an inner surface of the belt, and a recess provided in an intermediate portion between the upstream protrusion and the downstream protrusion in the sheet transport direction, the recess being recessed away from a straight line connecting a top portion of the upstream protrusion and a top portion of the downstream protrusion, the guide member includes a contact surface that is in contact with the inner surface of the belt, the contact surface defining a part of a circulation track of the belt, and the upstream protrusion protrudes beyond a virtual circle that is tangent to the contact surface.

A paper correction apparatus B corrects a curl of a sheet S by passing the sheet S through curved paper conveying routes CCP1 and CCP2 whose curving amounts can be changed. The paper correction apparatus B is provided with a control unit B3 which sets the curving amounts of the curved paper conveying routes CCP1 and CCP2, and changes a sheet interval in accordance with the curving amounts which are set. By this configuration, it is possible to inhibit the productivity from being reduced due to paper correction during performing post-printing processes in a finisher which is located in the downstream side of the paper correction apparatus B.

A sheet conveying apparatus includes: a conveyor configured to convey a sheet along a conveyance path; a discharge tray configured to support the sheet discharged from the conveyance path; a sheet presser movable toward and away from a support surface of the discharge tray and configured to press the sheet being discharged, onto the support surface; a first stopper configured to limit a spaced distance between the sheet presser and the support surface to a first distance when the first stopper is located at a first position, and configured to allow the spaced distance to become greater than the first distance when the first stopper is located at a second position; and a position change mechanism configured to change a position of the first stopper between the first position and the second position.

A sheet conveying apparatus includes: a conveyor configured to convey a sheet along a conveyance path; a discharge tray configured to support the sheet discharged from the conveyance path; a sheet presser movable toward and away from a support surface of the discharge tray and configured to press the sheet being discharged, onto the support surface; a first stopper configured to limit a spaced distance between the sheet presser and the support surface to a first distance when the first stopper is located at a first position, and configured to allow the spaced distance to become greater than the first distance when the first stopper is located at a second position; and a position change mechanism configured to change a position of the first stopper between the first position and the second position.

A sheet stacking tray that includes a single pneumatic baffle which uses the pressure differential caused by the flow of air across a cross process curved bottom surface of the pneumatic baffle to hold the lead edge of sheets driven by an input nip into the sheet stacking tray above a stack especially for longer and lighter weight sheets as they are driven by the input nip to a registration wall.

A recording apparatus includes a recording head; an output unit that outputs the recording medium; an output tray that receives the recording medium; a pressing member that is configured to be displaced in an up-down direction and that presses the recording medium toward the output tray by displacement of the pressing member from an upper side to a lower side with respect to the recording medium; and a restricting member configured to contact an upstream end portion in an output direction of the recording medium pressed by the pressing member, the restricting member including a contact position thereof with respect to the upstream end portion being configured to rotate. The restricting member restricts deformation of the upstream end portion pressed by the pressing member at the contact position. The pressing member is displaced upward in a state in which the restricting member restricts the deformation of the upstream end portion.