A cutter unit includes a first frame, a fixed blade, a movable blade, a movable blade drive mechanism and a pressure mechanism. The fixed blade has a first cutting edge portion. One end portion of the movable blade has one end configured to cut a cut item in cooperation with the first cutting edge portion. The second cutting edge portion and the first cutting edge portion contacting with each other at a first point and a second point. Another end portion of the movable blade has a contacting portion in contact with the first frame at a third point. The first point, the second point and the third point define an imaginary triangle. The pressure member presses the movable blade at a pressure contact position so that the movable blade presses against the fixed blade. The pressure contact position is positioned substantially within the imaginary triangle.

A printer device includes a guide section, a first projecting section, and a second projecting section. The guide section is disposed to be opposed to a side surface of roll-like continuous paper and includes a guide surface for restricting movement of the continuous paper along a width direction of the continuous paper during conveyance of the continuous paper. The first projecting section is provided on the guide surface side of the guide section and rotatably holds a core section of the continuous paper. The second projecting section has an outer diameter larger than an outer diameter of the first projecting section and is movable between a supporting position where the second projecting section contains an outer circumference of the first projecting section and a storing position where the second projecting section is stored further on an inner side than the guide surface. In the supporting position, the second projecting section rotatably holds a core section of another continuous paper having a core diameter larger than a core diameter of the continuous paper.

A printer device includes a guide section, a first projecting section, and a second projecting section. The guide section is disposed to be opposed to a side surface of roll-like continuous paper and includes a guide surface for restricting movement of the continuous paper along a width direction of the continuous paper during conveyance of the continuous paper. The first projecting section is provided on the guide surface side of the guide section and rotatably holds a core section of the continuous paper. The second projecting section has an outer diameter larger than an outer diameter of the first projecting section and is movable between a supporting position where the second projecting section contains an outer circumference of the first projecting section and a storing position where the second projecting section is stored further on an inner side than the guide surface. In the supporting position, the second projecting section rotatably holds a core section of another continuous paper having a core diameter larger than a core diameter of the continuous paper.

A printing apparatus, comprising a storage unit for storing a sheet, a printing unit for printing on the sheet conveyed by a first conveyance unit from the storage unit, a second conveyance unit, provided between the first conveyance unit and the storage unit, for conveying the sheet from the storage unit toward the first conveyance unit, a conveyance control unit for controlling driving of the first and the second convey units such that the sheet is bent between the first conveyance unit and the second conveyance unit, and a detection unit, provided between the first and the second conveyance units, for detecting bending of the sheet, wherein the conveyance control unit stops conveyance of the sheet by the first conveyance unit based on a detection result of the detection unit.

A printing apparatus, comprising a storage unit for storing a sheet, a printing unit for printing on the sheet conveyed by a first conveyance unit from the storage unit, a second conveyance unit, provided between the first conveyance unit and the storage unit, for conveying the sheet from the storage unit toward the first conveyance unit, a conveyance control unit for controlling driving of the first and the second convey units such that the sheet is bent between the first conveyance unit and the second conveyance unit, and a detection unit, provided between the first and the second conveyance units, for detecting bending of the sheet, wherein the conveyance control unit stops conveyance of the sheet by the first conveyance unit based on a detection result of the detection unit.

A digital printing system (10) includes a flexible substrate (44), an optical assembly (200, 301) and a processor (20). The flexible substrate (44) has a periodic pattern, and is configured to be moved and to receive ink droplets in a printing process that forms an image thereon. The optical assembly (200, 301) is configured to illuminate the flexible substrate (44) with light (215, 315), to detect the light (215, 315) from the flexible substrate (44), and to derive from the detected light (215, 315) a signal indicative of the periodic pattern. The processor (20) is configured to receive the signal and to monitor or control the digital printing system (10) based on the periodic pattern as indicated by the signal.

A thermal printer includes: a roll sheet receiving portion; and a delivery slot through which a portion of the recording sheet drawn from the roll sheet is delivered to an outside of the thermal printer; a printing unit including: a thermal head; and a platen roller configured to convey the recording sheet toward the delivery slot while sandwiching the recording sheet between the thermal head and the platen roller; a flap provided on a portion of the casing between the printing unit and the roll sheet receiving portion so as to be pivotable about a first axis, and configured to press the roll sheet in a direction of separating away from the delivery slot through abutment against an outer peripheral surface of the roll sheet; and an urging member configured to urge the flap about the first axis in the direction of separating away from the delivery slot.

A thermal printer includes: a roll sheet receiving portion; and a delivery slot through which a portion of the recording sheet drawn from the roll sheet is delivered to an outside of the thermal printer; a printing unit including: a thermal head; and a platen roller configured to convey the recording sheet toward the delivery slot while sandwiching the recording sheet between the thermal head and the platen roller; a flap provided on a portion of the casing between the printing unit and the roll sheet receiving portion so as to be pivotable about a first axis, and configured to press the roll sheet in a direction of separating away from the delivery slot through abutment against an outer peripheral surface of the roll sheet; and an urging member configured to urge the flap about the first axis in the direction of separating away from the delivery slot.

Disclosed is a label printer, having a printhead and a counter-element to the printhead, wherein a carrier tape is led between the printhead and the counter-element; a drive mechanism for the carrier tape having a driven carrier tape drawing roller; and at least one non-driven carrier tape pressure roller that is associated with the carrier tape drawing roller, wherein, the carrier tape drawing roller and the respective carrier tape pressure roller are arranged after the printhead and the counter-element, wherein the drive mechanism for the carrier tape comprises a further driven carrier tape drawing roller and a further non-driven carrier tape pressure roller associated with the further carrier tape drawing roller is provided, with the further carrier tape drawing roller and the further carrier tape pressure roller, arranged in front of the printhead and the counter-element.

A printing apparatus includes: a roll sheet container that contains a roll sheet around which a recording sheet is wound; a first sheet guide that makes contact with a first surface of the recording sheet; a second sheet guide that makes contact with a second surface of the recording sheet; and a transport roller that transports the recording sheet. The first and second sheet guides are disposed so as to face each other to form a sheet route along which the recording sheet is to pass. The transport roller transports the recording sheet that passed along the sheet route. The second sheet guide includes: a projection that protrudes toward the roll sheet container; and a pushing section that extends from the projection along an outer circumference of the roll sheet and in a direction away from the first sheet guide.