The disclosure is directed to a printer device including a printer body, a paper correction module, and a processor. The printer body has a media feed path. The printer body detects a width of the paper to output a paper size signal. The paper correction module is installed in the media feed path. The paper correction module includes two paper guiding arms and an actuating mechanism. The actuating mechanism is capable of driving the two paper guiding arms to approach or move away from each other. The processor is electrically connected with the actuating mechanism. After the processor receives the paper size signal, the actuating mechanism is controlled to space the two paper guiding arms with a preset interval.

A recording apparatus includes: an apparatus main body that includes a recording unit; a medium-receiving tray that is configured to be switched between a first state and a second state; and a motor, in which the medium-receiving tray includes a first tray, a second tray that is configured to be displaced with respect to the first tray and that is positioned further than the first tray from the apparatus main body when the medium-receiving tray is in the second state, a pinion gear engaged with a first rack formed in the first tray in a displacement direction of the second tray and with a second rack formed in the second tray in the displacement direction, and a displacement section that supports the pinion gear and that is displaced in the displacement direction in response to receiving power from the motor.

An image forming apparatus includes a stack portion on which a sheet is to be stacked, a regulating portion, a first detection device which includes a rotary variable resistor, a second detection, and a control unit. The regulating portion regulates a position of an edge of the stacked sheet. The first detection device outputs a detection signal based on the rotary variable resistor. The rotary variable resistor rotates in accordance with the sheet edge position regulated by the regulating portion. The second detection device detects presence or absence of the stacked sheet. The control unit calculates a calculated sheet width of the stacked sheet based on the output detection signal. The control unit sets the calculated sheet width after a first predetermined time has elapsed since the second detection device detects that the sheet is stacked on the stack portion as a detected sheet width of the stacked sheet.

An image reading apparatus includes a stacking portion, a feeding unit, a reading unit, and a discharge portion provided below the stacking portion. The feeding unit feeds a sheet stacked on the stacking portion in a feeding direction. The reading unit reads an image on the fed sheet and the discharge portion discharges the read sheet. The stacking portion includes first and second support surfaces that support the sheet and first and second regulating units to regulate a position of the sheet in a widthwise direction using two opposing ends of the sheet. The second support surface is retractable from a predetermined section above the discharge portion. The first support surface includes a downstream support portion that supports the sheet on a downstream side of the predetermined section in the feeding direction. A part of the second regulating surface is positioned on the downstream support portion.

An image forming apparatus (1) includes a discharge port (25), a sheet stacking plate (41), a pair of cursors (43), a cursor driver (95), a pair of blowers (83) and a controller (37). Through the discharge port (25), a sheet formed an image is discharged. On the sheet stacking plate (41), the sheet discharged through the discharge port (25) is stacked. The pair of cursors (43) is supported on the sheet stacking plate (41) in a slidable manner in width directions perpendicular to a discharge direction of the sheet and comes into contact with both side edges of the sheet. The cursor driver (95) drives the pair of cursors (43). The pair of blowers (83) is provided in the pair of cursors (43) so as to blow air to both corners on an upstream side in the discharge direction of the sheet which is discharged through the discharge port (25), from above. The controller (37) controls the cursor driver (95) and the pair of blowers (83).

Disclosed herein is a paper roll support device for a printing apparatus. The paper roll support device includes: first and second paper guides arranged to be opposite to each other, and configured to support a paper roll; a support panel configured to fix the first and second paper guides; first and second transfer rods installed such that first ends thereof are fixed to the first and second paper guides, and configured to be movable in conjunction with each other; a pulley provided to be rotatable coaxially with the pinion gear; a belt installed such that one end thereof is fixed to one side of the outer circumference of the pulley and the other end thereof is fixed to one end of one of the first and second transfer rods, and configured to rotate the pulley; and an elastic member configured to reversely rotate the pulley to its original position.

A medium receiving tray has a first tray and a second tray. A movable support having a second support surface for supporting media is disposed in the second tray. When the medium receiving tray is in a first state, the movable support is positioned above a first support surface of the first tray. When the medium receiving tray is switched from the first state to a second state, a free end is detached from the downstream end of the first support surface and displaced downward, and the second support surface is thereby inclined upward toward the downstream in a medium discharging direction.

A printer device includes: a recessed accommodation part accommodating a roll-shaped continuous paper; a pair of rack gears arranged in a staircase-like shape on a paper conveyance direction side of the continuous paper, and having tooth rows arranged in a first direction orthogonal to the paper conveyance direction so as to face each other; a pinion gear arranged between the pair of rack gears and fitting into the tooth rows of the pair of rack gears, and a pair of paper guides respectively provided at one end portion of an upper rack gear in the first direction and anther end portion of a lower rack gear in the first direction, and supporting side surfaces of the continuous paper accommodated in the accommodation part. The pair of paper guides perform an opening or closing movement in the first direction by the pair of rack gears and the pinion gear.

An image reading apparatus includes a stacking portion, a feeding unit, a reading unit, and a discharge portion provided below the stacking portion. The feeding unit feeds a sheet stacked on the stacking portion in a feeding direction. The reading unit reads an image on the fed sheet and the discharge portion discharges the read sheet. The stacking portion includes first and second support surfaces that support the sheet and first and second regulating units to regulate a position of the sheet in a widthwise direction using two opposing ends of the sheet. The second support surface is retractable from a predetermined section above the discharge portion. The first support surface includes a downstream support portion that supports the sheet on a downstream side of the predetermined section in the feeding direction. A part of the second regulating surface is positioned on the downstream support portion.

An image forming apparatus (1) includes a discharge port (25), a sheet stacking plate (41), a pair of cursors (43), a cursor driver (95), a pair of blowers (83) and a controller (37). Through the discharge port (25), a sheet formed an image is discharged. On the sheet stacking plate (41), the sheet discharged through the discharge port (25) is stacked. The pair of cursors (43) is supported on the sheet stacking plate (41) in a slidable manner in width directions perpendicular to a discharge direction of the sheet and comes into contact with both side edges of the sheet. The cursor driver (95) drives the pair of cursors (43). The pair of blowers (83) is provided in the pair of cursors (43) so as to blow air to both corners on an upstream side in the discharge direction of the sheet which is discharged through the discharge port (25), from above. The controller (37) controls the cursor driver (95) and the pair of blowers (83).