Abstract: A position indicator that is used with a position detection device including a position detection sensor, the position indicator including a first function module and a second function module. The first function module includes a core body that, in operation, is brought into contact with an input surface for position detection in the position detection sensor, and a position detection signal transmission circuit, in operation, that transmits a position detection signal to the position detection sensor. The second function module includes a first function circuit that, in operation, generates characteristic selection information corresponding to a characteristic of the core body or a characteristic of the input surface and transmits the characteristic selection information, or a second function circuit that, in operation, generates a stimulus corresponding to the characteristic selection information such that a user who is holding the position indicator audibly or tactilely perceives the stimulus.

Abstract: It is an object of the present invention to secure safety of a human body accessible to a side of a delivery conveyor during operations of a printing machine. Each of sensors 79 in an area sensor that form a sensing area B to prevent access of a human body to the side of a delivery conveyor (a chain gripper or the like) is arranged on the side of the delivery conveyor of a delivery unit in a paper ejector 7. Sensing operations of some of the sensors 79 in the area sensor are controlled to be turned off by a control device 9 in conjunction with a preset instruction of presetting a size of sheet and operations of the printing machine to sense access of a human body to the side of the delivery conveyor and prevent a sheet from being sensed by the sensors 79 during printing operations.

Abstract: A sheet joggling device is provided to increase the number of times a sheet is pressed and to improve sheet joggling functions of stacked sheets. A width direction sheet joggling device disposed on both sides of the advancing direction of discharged sheets, and which aligns positions in the width direction when stacking sheets, has a back holding unit movably provided in the width direction as to a frame, a size changing mechanism to move the back holding unit in the width direction B, a back aligning plate unit movably attached to the sheet side of the back holding unit in the width direction B, and a back aligning plate vibrating mechanism for causing the back aligning plate unit to approach/retreat as to the sheets with a predetermined timing.