Abstract: A paper ejector unit which transports paper printed by a printing mechanism of a printer along a transport path includes a paper accumulator provided ahead of an end-of-transport path on a downstream side in a transport direction of the paper, the paper accumulator accumulating the paper ejected from the end, a door which opens and closes between a closed condition in which the paper accumulator is separated from an outside and an open condition in which the paper accumulator communicates with the outside, and a door opening and closing controller which maintains the door in the closed condition with no reception of input of an opening operation signal which opens the door, and changes the door from the closed condition to the open condition with reception of the input of the opening operation signal.

Abstract: A label printer is provided with a printer body that includes a paper roll holder; a label printing unit that includes a print head; a platen roller that sends the paper strip in a first direction after the paper strip passes through the print head; a cover that opens or closes the paper roll holder; and a removal unit that peels off the label from the paper strip. One end of the cover is pivotally supported on the printer body via a first rotation shaft that is parallel to a central axis of the paper roll. One end of a longitudinal side of the removal unit is pivotally supported on the cover via a second rotation shaft that is perpendicular to the first rotation shaft. A locking mechanism that engages with the cover is provided at the other end of the longitudinal side of the removal unit.

Abstract: A printer is provided with a printer body that includes a paper roll holder; first and second paper guides that come in contact with both end surfaces of a paper roll in the paper roll holder and prevent a positional shift of the paper roll in a central axis direction; first and second guide rails that restrict movement directions of the first and second paper guides so as to allow the first and second paper guides to slide in the central axis direction of the paper roll; and a link lever that connects the first paper guide and the second paper guide. The link lever enables the first and second paper guides to slide in conjunction with each other and to move closer to or away from each other.

Abstract: A label printer is provided with a printer body that includes a paper roll holder; a label printing unit that includes a print head; a platen roller that sends the paper strip in a first direction after the paper strip passes through the print head; a cover that opens or closes the paper roll holder; and a removal unit that peels off the label from the paper strip. One end of the cover is pivotally supported on the printer body via a first rotation shaft that is parallel to a central axis of the paper roll. One end of a longitudinal side of the removal unit is pivotally supported on the cover via a second rotation shaft that is perpendicular to the first rotation shaft. A locking mechanism that engages with the cover is provided at the other end of the longitudinal side of the removal unit.

Abstract: A paper ejector unit which transports paper printed by a printing mechanism of a printer along a transport path, includes a paper accumulator provided ahead of an end-of-transport path on a downstream side in a transport direction of the paper, the paper accumulator accumulating the paper ejected from the end, a door which opens and closes between a closed condition in which the paper accumulator is separated from an outside and an open condition in which the paper accumulator communicates with the outside, and a door opening and closing controller which maintains the door in the closed condition with no reception of input of an opening operation signal which opens the door, and changes the door from the closed condition to the open condition with reception of the input of the opening operation signal.

Abstract: The invention provides a portable printer wherein provisions are made to prevent rain drops or dust particles from entering the interior of a body case through a paper exit port of the printer when a person carrying the portable printer in an exposed manner, for example, on his or her waist, is caught in rain or passes through a dusty area, and provisions are also made to ensure that power to the portable printer is turned off when not in use.

Abstract: The invention provides a portable printer wherein provisions are made to prevent rain drops or dust particles from entering the interior of a body case through a paper exit port of the printer when a person carrying the portable printer in an exposed manner, for example, on his or her waist, is caught in rain or passes through a dusty area, and provisions are also made to ensure that power to the portable printer is turned off when not in use.

Abstract: In a printer for printing a rolled printing paper, a front panel is attached to a frame that houses a print unit and a paper holder unit. When the front panel is opened, the print unit and the paper holder unit project on the front side of the frame in association with the action of the front panel.

Abstract: In a printer for printing a rolled printing paper, a front panel is attached to a frame that houses a print unit and a paper holder unit. When the front panel is opened, the print unit and the paper holder unit project on the front side of the frame in association with the action of the front panel.

Abstract: Before stopper members (25) of a skew correcting mechanism (10) are evacuated from a sheet conveyor path, sheet conveyor roller pairs (8) rotate a set angle in a direction opposite to the sheet feeding direction such that a sheet is separated from the stopper members (25). The sheet conveyor roller pairs (8) are arranged so that at least one of the rollers of each pair is independently pressed against the other with a force corresponding to the type of the sheet.

Abstract: A type printer in which deterioration of a platen is prevented by distributing positions of impacts on the platen by a printing head over the whole region of peripheral surface of a cylindrical platen. The drive shafts of a paper feed roller, platen, and tractor are operatively connected to each other by a gear train, and driven by a motor. The gear ratio of gears in the gear train is selected so that the peripheral velocities of the paper feed roller, platen, and tractor agree with each other. The platen rotates in synchronism with the feed velocity of paper fed by the paper feed roller and the tractor, by which the positions of impacts, which are effected by the printing head, are distributed over the whole region on the peripheral surface of the platen.

Abstract: First and second sheet guides (21, 31) are arranged individually in front and at the back of a print head (6) in a sheet feeding direction. Each of these sheet guides (21, 31) has an arcuate end edge opposite to the print head (6), the width-direction central portion of the end edge being located at the longest distance from the print head so that the space between the end edge and the print head gradually increases with lateral distance from the width-direction central portion of the end edge. In consequence, the leading end portion of a sheet that is printed by means of the print head (6), especially its opposite ends, can be prevented from abutting against the sheet guides (21, 31) and causing jamming due to deformation of the sheet or the like as the leading end portion of the sheet passes through a gap between a conveyor plate (9) and the sheet guides (21, 31).