Abstract: A printer device includes a hopper configured to receive a roll of paper, a printing head, a conveyor, a flapper, and a remaining paper sensor. The printing head prints on the paper. The conveyor draws out an end of the paper from the roll and conveys the paper to the printing head. The flapper contacts an outer peripheral surface of the roll and presses the roll against an inner wall of the hopper at a drawing-out point where the paper is drawn out from the roll. The remaining paper sensor provides an indication that an amount paper remaining in the roll has reached a predetermined amount of paper.

Abstract: In general, according to one embodiment, a paper sheet storage device that is capable of accurately detecting a near end of a stored roll paper sheet is provided. A paper sheet storage device in an embodiment includes a storage unit configured to store a roll paper sheet obtained by winding a long paper sheet, a near end detection unit configured to detect a near end since a diameter of the roll paper sheet stored in the storage unit becomes smaller, and a pressing unit configured to press the roll paper sheet stored in the storage unit in a direction of the near end detection unit.

Abstract: A printer according to an embodiment includes a printing unit that prints on a sheet. The sheet is discharged through an outlet. The sheet is conveyed on a sheet conveyance path through the printing unit and to the outlet. A movable device is located on the sheet conveyance path upstream of the outlet in a sheet conveying direction. The movable device can move between a separation position, a proximity position, and a protruding position. A detection device detects a position of the movable device. A controller determines a conveyance abnormality of the sheet based on the state of the movable device detected by the detection device, and outputs a signal indicating the conveyance abnormality.

Abstract: A printer according to an embodiment includes a printing unit that prints on a sheet. The sheet is discharged through an outlet. The sheet is conveyed on a sheet conveyance path through the printing unit and to the outlet. A movable device is located on the sheet conveyance path upstream of the outlet in a sheet conveying direction. The movable device can move between a separation position, a proximity position, and a protruding position. A detection device detects a position of the movable device. A controller determines a conveyance abnormality of the sheet based on the state of the movable device detected by the detection device, and outputs a signal indicating the conveyance abnormality.