A sensor (10) is used for detecting at least one edge of at least one product web (1) running in a run direction (2). The sensor (10) has active elements (11), which are arranged adjacent to one another and are formed by transmitters (12) and receivers (13). In this case, the transmitters (12) can emit waves (14) which are received by the receivers (13). The product web (1) is provided for influencing the waves (14) in the radiation path between the transmitters (12) and receivers (13). In this case, a first (21, 31) and second (22, 32) of the active elements (11) are adjacent and have a mutual first spacing (41). The second (22, 32) and a third (23, 33) of the active elements (11) are also adjacent to one another and have a second spacing (42), which corresponds to at least 1.2 times the first spacing (41).

An image forming apparatus includes a first unit, a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed, and an electric board. In the image forming apparatus, a disposition of the electric board is restricted by the first unit and the second unit.

A sheet handling apparatus includes a transport path that includes a first path, a second path, and a curved portion connecting the first path and the second path, the transport path circularly transports a sheet along the transport path in a forward direction or a backward direction. The sheet handling apparatus further includes a rolling body that is disposed at the curved portion and rotates clockwise and counterclockwise, and a plurality of rollers that are opposed to the rolling body and sandwich the sheet between each of the plurality of rollers and the rolling body along the curved portion of the transport path. The rolling body transports the sheet in the forward direction by rotating clockwise and transports the sheet in the backward direction by rotating counterclockwise.

A sheet conveyance apparatus includes a first guide, a second guide configured to form a conveyance path together with the first guide, a conveyance portion, a pressing portion configured to press the sheet against the first guide, an urging portion configured to urge the pressing portion in an urging direction toward the first guide, a receiving member configured to hold the pressing portion and receive a reaction force of the urging portion, and a detection unit including a first detection, and a second detection portion, wherein the second guide provided with the second detection portion, and the receiving member are movably disposed with respect to the first guide provided with the first detection portion respectively, and are configured to be positioned with respect to the first guide independently from each other.

Provided is a technique that enables proper sorting of discharged print media by suppressing curling of each of the print media sufficiently. A determining unit determines a curling suppressing operation to be executed such that in a case where sorting operation is executed, the suppressing operation having a higher effect of suppressing curling is executed than in a case where the sorting operation is executed. Then, a print control unit controls a print head to perform printing on print media while executing the suppressing operation determined by the determining unit.

A sheet processing apparatus includes a conveyance portion, a punching portion, a moving portion, a first detecting portion, and a control unit configured to control the conveyance portion, the punching portion and the moving portion, wherein the control unit is configured, for a target position of each of a plurality of holes to be formed to a single sheet, to cause the first detecting portion to execute a detection process, and to execute a moving process of moving the moving portion based on the output value of the first detecting portion corresponding to the target position and a punching process of performing punching to the target position of the sheet by the punching portion after the moving process has been completed.

A peripheral capable of sensing a media count includes a body, a stopper, a supply tray and a sensor assembly. The stopper is installed in the body. The supply tray accommodated within the body includes a base and a frame. The frame elastically and pivotally connected to the base supports media and pushes the media in a direction toward the stopper so that the media contacts the stopper. The sensor assembly installed in the body detects a position state of the frame to obtain a sensing signal corresponding to the number of the media.

A sheet stacking device includes a housing, a discharge tray, a lifting mechanism, a first upper surface detection part, a second upper surface detection part and a control part. The housing has a discharge port. On the discharge tray, the sheet discharged from the discharge port in a predetermined discharge direction is stacked. The lifting mechanism supports the discharge tray. The first upper surface detection part detects a first detected surface of the sheet on the discharge tray. The second upper surface detection part detects a second detected surface of the sheet on the discharge tray on a downstream side of the first detected surface in the sheet discharge direction. The control part controls the lifting mechanism based on a detection result of the first upper surface detection part and a detection result of the second upper surface detection part, and adjusts the discharge tray at a predetermined height.

A sheet processing machine (10) with a jam detection device (44, 46), the jam detection device (44, 46) comprising a light emitting element and a light receiving element forming a light barrier in a detection zone (53, 78) of a processing station of the sheet processing machine (10). The jam detection device (44, 46) further comprises a control unit (48) being connected to the light receiving element and being adapted to register if the light barrier is interrupted.

An image forming apparatus includes a first unit, a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed, and an electric board. In the image forming apparatus, a disposition of the electric board is restricted by the first unit and the second unit.