Abstract: A printer includes an enclosure, a paper output tray, and two positioning devices. The enclosure includes a receiving base and two side portions extending from the receiving base. The paper output tray is pivotally mounted between the two side portions. The two positioning devices are mounted to the two side portions. The paper output tray is placed in the receiving base in a first position. The paper output tray can rotate to resist each of the two positioning devices and move to a side portion, thereby enabling the paper output tray to rotate to a second position. Each of the two positioning devices restores to an original position to support the paper output tray stably in the second position, to enable the removal of a paper jam or other circumstance.

Abstract: A media size detection device for detecting a size of a media held in a media tray is provided. The device includes a width adjuster and a length adjuster, a first magnetic member indicates width and a second magnetic member indicates length, and a plurality of magnetic sensors arranged on a lower surface of the media tray generates signals as to respective proximities of the first and second magnetic members, the act of placing and securing the media within the media tray enables the automatic calculation of the size of the media. A media size detection method is also provided.

Abstract: A media size detection device for detecting a size of a media held in a media tray is provided. The device includes a width adjuster and a length adjuster, a first magnetic member indicates width and a second magnetic member indicates length, and a plurality of magnetic sensors arranged on a lower surface of the media tray generates signals as to respective proximities of the first and second magnetic members, the act of placing and securing the media within the media tray enables the automatic calculation of the size of the media. A media size detection method is also provided.

Abstract: A printer includes an enclosure, a paper output tray, and two positioning devices. The enclosure includes a receiving base and two side portions extending from the receiving base. The paper output tray is pivotally mounted between the two side portions. The two positioning devices are mounted to the two side portions. The paper output tray is placed in the receiving base in a first position. The paper output tray can rotate to resist each of the two positioning devices and move to a side portion, thereby enabling the paper output tray to rotate to a second position. Each of the two positioning devices restores to an original position to support the paper output tray stably in the second position, to enable the removal of a paper jam or other circumstance.

Abstract: A printer includes a main body, a guiding plate secured within the main body, a cover rotatably connected to the main body and including at least one resisting block, and a shielding assembly arranged between the cover and the guiding plate. The printer includes a shielding plate rotatably connected to the main body and at least one elastic element secured to the shielding plate. The shielding plate is in an upright state when no external force is exerted on the shielding plate. When the cover is rotated to cover the main body, the resisting block resists the elastic element, causing the shielding plate to rotate from the upright state to a horizontal state, and causing a portion of the shielding plate to contact the guiding plate.

Abstract: A printer includes a main body, a guiding plate secured within the main body, a cover rotatably connected to the main body and including at least one resisting block, and a shielding assembly arranged between the cover and the guiding plate. The printer includes a shielding plate rotatably connected to the main body and at least one elastic element secured to the shielding plate. The shielding plate is in an upright state when no external force is exerted on the shielding plate. When the cover is rotated to cover the main body, the resisting block resists the elastic element, causing the shielding plate to rotate from the upright state to a horizontal state, and causing a portion of the shielding plate to contact the guiding plate.