Printer device

Abstract

The invention discloses a printer device, which can be formed by components which are not easy to consume, so that cut and discharged paper is difficult to fall down. The printer apparatus includes a printing section that performs printing while drawing out a sheet from a roll paper around which a band-shaped sheet is wound with a first surface as an outer side and conveying the sheet, a cutting section that is provided on a downstream side of the printing section in a sheet conveying direction and cuts the sheet, and a cutting section that is provided on a downstream side of the cutting section in the sheet conveying direction and cuts the sheet in the sheet conveying direction. The supporting part is arranged on the downstream side of the paper conveying direction of the cutting part, is inclined in a manner that the front end part of the paper moving along with the conveying is shifted from the second surface side to the first surface side, and is in contact with a second surface which is the back surface of the first surface to support the paper; and a pressing portion that presses the first surface of the sheet supported by the support portion.

Description

[0001] This application claims priority to Japanese application No. JP2024-165873, filed on September 25, 2024, and incorporates the contents of the aforementioned application in their entirety. Technical Field

[0002] Embodiments of the present invention relate to a printer device. Background Technology

[0003] Conventional printers have been used to print out paper from a roll of paper. Such printers are used, for example, for printing and issuing invoices. Each invoice is cut before issuance. To prevent the invoice from falling from the paper feed nozzle, the printer includes a support portion that supports the cut invoice from below and a component for pressing the paper against this support portion. This component is typically brush-shaped, with the tips of the brush bristles sliding along the upper surface of the discharged paper.

[0004] As described above, the brush-like component wears down due to the sliding of the bristles against the paper, and therefore needs to be replaced (maintained) periodically. Summary of the Invention

[0005] In view of the above problems, the present invention aims to provide a printer device that, through a structure made of non-consumable parts, makes it difficult for cut and ejected paper to fall.

[0006] To solve the above problems, the printer apparatus of the embodiment includes: a printing section that prints while pulling out and conveying paper from a roll of paper with a strip of paper wound around its outer side; a cutting section disposed on the downstream side of the printing section in the paper conveying direction that cuts the paper; a support section disposed on the downstream side of the cutting section in the paper conveying direction that is inclined such that the leading end of the paper, which moves with the conveying, is displaced in a direction from the second side toward the first side and supports the paper in contact with the second side, which is the back side of the first side; and a pressing section disposed on the downstream side of the cutting section in the paper conveying direction that presses the first side of the paper supported by the support section.

[0007] According to the above-described printer apparatus, a printer apparatus can be provided that makes it difficult for the ejected paper to fall off by means of a component that is not easily worn out.

[0008] In the printer device described above, the pressing part has a shaft at its upstream end in the paper transport direction and is able to swing around the shaft, and presses the paper through the portion downstream of the shaft in the paper transport direction, i.e., the pressing part.

[0009] According to the printer device described above, the paper can be pressed down by a swinging pusher.

[0010] In the printer device described above, the pushing part is subjected to force in the direction of pressing the paper against the pressing part.

[0011] According to the printer device described above, force can be applied to the pressing part.

[0012] In the printer device described above, the inclination of the support is steeper than the imaginary line connecting the front end of the support and the cutting position of the cutting part, and the pushing part is located at a position that interferes with the imaginary line when the paper is not in contact with it.

[0013] Based on the printer device described above, the position of the pressing part can be determined based on the imaginary lines.

[0014] In the printer device described above, the support portion has a concave curved surface.

[0015] According to the printer device described above, the support portion can be formed from a concave curved surface.

[0016] In the printer device described above, the pressing part of the pushing part is positioned opposite the support part at a predetermined gap, and holds the downstream end of the cut paper in the transport direction between the paper and the inclined surface of the support part.

[0017] According to the printer device described above, since the pressing part of the push part is not always pressed against the support part, the wear of the push part can be prevented.

[0018] In the printer device described above, the pressing part pushes the cut paper, which is bent in a state corresponding to the diameter of the roll paper, away from the upper surface of the support part, with reduced bending and towards the upper surface of the support part.

[0019] According to the printer device described above, the paper can be held with less pressure by utilizing the bending of the paper roll, thus preventing the wear of the pressing part.

[0020] The printer device described above also includes: a sensor that detects when the pusher part swings beyond a predetermined degree; and a control unit that, based on the sensor's detection of the swinging of the pusher part, determines that the paper is blocked near the paper output port.

[0021] According to the printer device described above, since the pressing part performs both the function of detecting paper blockage and the function of holding the paper, the number of components of the printer device can be reduced.

[0022] In the printer device described above, the pressing part has a sheet-like shape that is longer in the paper width direction.

[0023] The printer device described above can be stably pressed in the width direction of the paper.

[0024] In the printer device described above, the pressing part has a guide surface on the upstream side of the paper transport direction of the pressing part, and the guide surface is inclined in a manner that causes the transported paper to be inclined in a direction from the first surface side to the second surface side.

[0025] According to the above-described printer device, the paper can be directed towards the second side from the first side as it moves downstream in the transport direction. Attached Figure Description

[0026] Figure 1 This is a perspective view showing an example of the appearance of the printer apparatus of an embodiment.

[0027] Figure 2 This is a perspective view of a printer device with its casing in an open state.

[0028] Figure 3 This is a cross-sectional view showing an example of the internal structure of a printer device.

[0029] Figure 4 This is a cross-sectional view of a printer device with its casing in an open state.

[0030] Figure 5 It is an enlarged cross-sectional view showing the periphery of the paper feed opening.

[0031] Figure 6 It is an enlarged cross-sectional view showing the periphery of the paper feed opening.

[0032] Figure 7 This is a schematic diagram used to illustrate the movement of the swinging part.

[0033] Figure 8 This is a perspective view showing an example of the appearance of the swinging part.

[0034] Figure 9 This is a perspective view showing another example of the appearance of the swinging part.

[0035] Figure 10 This is a perspective view showing another example of the appearance of the swinging part.

[0036] Figure 11 It is an enlarged cross-sectional view showing the periphery of the paper feed opening.

[0037] Explanation of reference numerals in the attached figures

[0038] 1…Printer unit, 2…House, 20…Main body, 21…Cover, 22…Paper outlet, 211…Support, 221…Support, 3…Paper storage, 4…Printing section, 41…Print head, 42…Impression roller, 45…Head support, 46…Spring, 5…Cutting section, 51…Fixed blade, 52…Modible blade, 7…Buffer section, 8…Swing section (an example of a pressing section), 81…Shaft, 82…Guide surface, 83…Switching section (step or concave / convex shape, etc.), 84…Rib, 85…Sensor, 86…Force application component, 88…Gutter, 89…Bending section (an example of a pressing section), 90…Roll paper, 91…Paper, 95…Imaginary line. Detailed Implementation

[0039] The embodiments are described using the accompanying drawings. Figure 1 This is a perspective view showing an example of the appearance of the printer device 1 in the embodiment. Figure 2 This is a perspective view of the printer device 1 with the housing 2 in an open state. Figure 3 This is a cross-sectional view showing an example of the internal structure of the printer device 1. Figure 4 This is a cross-sectional view showing the printer device 1 with the housing 2 in an open state. It should be noted that... Figure 3 and Figure 4 yes Figure 1 and Figure 2 The AA arrow cross-section of the printer device 1 in the diagram.

[0040] The printer unit 1 includes a housing 2, a paper storage section 3, a printing section 4, a cutting section 5, a buffer section 7, and a swing section 8. In the diagram, the X-axis represents the width (left-right direction) of the printer unit 1, the Y-axis represents the depth (front-back direction) of the printer unit 1, and the Z-axis represents the height (up-down direction) of the printer unit 1. The positive direction of the Z-axis is upward from the bottom of the printer unit 1. The positive direction of the Y-axis is from the front to the rear of the printer unit 1. When viewing the printer unit 1 along the positive Y-axis, the positive direction of the X-axis is from left to right.

[0041] The printer device 1 in this embodiment is a thermal printer, such as a ticket printer used for printing tickets, etc. (printing, outputting, issuing).

[0042] The housing 2 houses other components (paper storage section 3, printing section 4, cutting section 5, buffer section 7, swing section 8, etc.). The housing 2 is box-shaped and has a cover 21 at the front for opening and closing the main body 20. Figure 3 As shown, in this embodiment, the lower part of the cover 21 is rotatably supported on the edge of the opening of the main body 20, and the opening of the main body 20 is opened and closed as it is rotated. When the cover 21 is in the closed state of the main body 20, as... Figure 1As shown, a paper discharge port 22 is formed between the upper edge of the cover 21 and the edge of the opening of the main body 20. The paper discharge port 22 is an opening for discharging paper 91 from the housing 2.

[0043] The cover 21 of the printer unit 1 has a support portion 211 on its upper side. The support portion 211 is located downstream of the paper transport direction of the cutting section 5 and has an inclined surface that contacts the back side of the printing surface of the paper 91 to support the paper 91. This inclined surface causes the leading end of the paper 91, which moves with the transport, to be displaced in the direction from the back side of the paper 91 toward the printing surface side.

[0044] More specifically, the support portion 211 is located outside the paper discharge port 22, supporting the underside of the paper 91 discharged from the paper discharge port 22. The support portion 211 is detachably provided on the paper discharge port 22, or is integrally provided with the paper discharge port 22. That is, the support portion 211 is detachably formed on the cover 21, or is integrally formed with the cover 21. The support portion 211 can also be referred to as a worktable.

[0045] The paper storage section 3 stores the roll of paper 90 in a manner that allows paper 91 to be pulled out from the roll of paper 90. The roll of paper 90 is formed by winding a strip of paper 91 with the first side facing outwards. In this embodiment, the first side is the side on which printing is performed (i.e., the printing surface). Therefore, the outer peripheral surface of the roll of paper 90 is the printing surface of the paper 91. In addition, the back side of the printing surface is an example of a second side. The paper 91 is an example of a sheet-like printing medium. With the cover 21 in the open main body 20 position, the paper storage section 3 is open, allowing the roll of paper 90 to be replaced or added.

[0046] The printer device 1 prints on the paper 91 while pulling out the paper 91 from the roll of paper 90 stored in the paper storage section 3 and feeding it.

[0047] The buffer section 7 functions as a damper, absorbing the tension associated with the paper 91 from the start of paper feeding until the roll paper 90 rotates stably. Thus, the buffer section 7 stabilizes the printing process of the printing section 4.

[0048] here, Figure 5 and Figure 6 This is an enlarged cross-sectional view showing the periphery of the paper discharge port 22. Figure 5 This shows the state of paper 91 before it is cut. Figure 6 This shows the state of paper 91 after it has been cut.

[0049] The printing unit 4 prints on the paper 91 while pulling it out of and conveying it from a roll of paper 90 on which a strip of paper 91 is wound. It has a print head 41 and an impression roller 42. The print head 41 is mounted on the main body 20, and the impression roller 42 is mounted on the cover 21. In this embodiment, the impression roller 42 is a roller that is driven by rotation to convey the paper 91 sandwiched between the impression roller 42 and the print head 41.

[0050] The printhead 41 is a thermal head with a structure that arranges multiple heating elements neatly. The printhead 41 prints onto the paper 91 held between the impression roller 42 and the printhead 41 by heating the heating elements corresponding to the printing pattern.

[0051] More specifically, the printhead 41 is mounted on the printhead support 45 and is positioned opposite the impression roller 42. The printhead support 45 applies force to the printhead 41 in the direction of pressing it against the impression roller 42 by the elastic force of the spring 46. Thus, the printhead 41 is pressed against the impression roller 42.

[0052] When replenishing or replacing the roll of paper 90, the user opens the cover 21, replenishes or replaces the roll of paper 90, clamps the front end of the paper 91 pulled from the roll of paper 90 into the impression roller 42 and the print head 41, and then closes the cover 21. Thus, the front end of the paper 91 is held by the impression roller 42 and the print head 41.

[0053] The cutting section 5 is located downstream of the printing section 4 in the paper transport direction and is used to cut the paper 91. It has a fixed blade 51 and a movable blade 52. The movable blade 52 is a blade that can move in the thickness direction of the paper. The moving mechanism that moves the movable blade 52 is controlled by the control section mounted on the printer device 1, and moves the movable blade 52 in the vertical direction (Z-axis direction) shown in the figure. The fixed blade 51 is provided in a position opposite to the movable blade 52 such that it does not move within the main body 20.

[0054] When printing on paper 91 is finished, the movable blade 52 moves from the back side of paper 91 to the front side of paper 91, and paper 91 is cut by clamping it with the movable blade 52 and the fixed blade 51. The front side of paper 91 corresponds, for example, to the printed surface of paper 91. In addition, the back side of paper 91 corresponds to the side of paper 91 opposite to the printed surface (non-printed surface).

[0055] It should be noted that the purpose of the cutting unit 5 is not limited to cutting the paper 91 (full cutting). For example, the cutting unit 5 can also perform partial cutting of a portion of the paper 91. Full cutting and partial cutting are preset according to the user's instructions via an operation unit (not shown).

[0056] The swinging part 8 is an example of a pressing part. The pressing part is located downstream of the paper transport direction of the cutting part 5 and upstream of the paper discharge port 22, pressing the first surface (printing surface) of the paper 91 supported by the support part 211.

[0057] Figure 7 This is a schematic diagram used to illustrate the operation of the swinging part 8. Additionally, Figure 8 This is a perspective view showing an example of the appearance of the swinging part 8. The swinging part 8 has a sheet-like shape that is longer in the width direction of the paper, and has a shaft 81, a guide surface 82, a groove 88, a bend 89, etc.

[0058] Shaft 81 is the swing center of the swinging part 8 and is provided along the length direction of the swinging part 8. The swinging part 8 can rotate (oscillate) about shaft 81. The swinging part 8 can also be called a baffle.

[0059] The curved portion 89 has a valley shape formed by a bend line parallel to the shaft 81. The curved portion 89 is an example of a pressing portion, located downstream of the shaft 81 in the paper transport direction. Furthermore, the curved portion 89 is the lower end of the swing portion 8. That is, the curved portion 89 is the lowest part of the swing portion 8. The curved portion 89 is located away from the shaft 81 (for example, if the shaft 81 is located on one side of the swing portion 8, it is near the opposite side) and moves significantly with rotation about the shaft 81.

[0060] The guide surface 82 is at least a portion of the lower surface of the side of the swing portion 8 opposite to the paper 91, located upstream of the bending portion 89 in the paper transport direction. Furthermore, the guide surface 82 is the portion where the leading edge of the transported paper 91 contacts the printing surface, defining the travel direction of the paper 91 and guiding it in the prescribed direction. As the paper 91 is transported, the leading edge of the paper 91 moves downstream in the paper transport direction along the guide surface 82. In this embodiment, the guide surface 82 is inclined such that the paper 91 tilts downwards (from the first surface side towards the second surface side) as it moves downstream in the transport direction. It should be noted that the guide surface 82 may not be flat; for example, it may be curved.

[0061] The groove 88 extends along the paper transport direction and is partially provided on the swing part 8. The groove 88 is provided, for example, to avoid components such as paper pressure plates used to press the side ends of the paper 91 to define the position of the paper 91 in the width direction.

[0062] The swinging part 8 presses down on the first side of the paper 91 by its own weight. Hereinafter, the force that pushes the swinging part 8 up against this pressing force will be called the upward force. When the upward force exceeds the pressing force, the swinging part 8 swings by rotating around the axis 81.

[0063] Here, the printer device 1 includes a sensor 85 that detects the swinging part 8 swinging excessively beyond a predetermined degree. When a paper jam occurs due to paper 91 becoming blocked near the paper output tray 22, the swinging part 8 swings excessively, with its movement (or rotation angle) exceeding a predetermined degree. When the sensor 85 of the printer device 1 detects the swinging part 8 swinging excessively beyond a predetermined degree, the control unit of the printer device 1 determines that a paper jam has occurred. It should be noted that the control unit is composed of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), etc. The CPU expands the program stored in the ROM, etc., into the RAM and executes it, thereby realizing the prescribed functions. That is, the printer device 1 includes: a sensor 85 that detects the swinging part 8 swinging excessively beyond a predetermined degree; and a control unit that, based on the swinging of the swinging part 8 detected by the sensor 85, determines that paper 91 is blocked near the paper output tray 22. The swinging part 8 performs both the function of detecting paper jams and the function of holding the paper. Therefore, it is possible to reduce the number of components in the printer device 1.

[0064] It should be noted that the pressing force generated by the swinging part 8 is set to be sufficiently large compared to the lifting force generated by the stiffness of a sheet of paper 91, but not exceeding the lifting force when a paper jam occurs, which is more appropriate.

[0065] The swing section 8 also serves as a component that provides other functions. Another function is to hold the cut paper 91 on the support section 211 (paper holding function).

[0066] Here, the printer assembly 1 has a support portion 221. The support portion 221 is located inside the paper outlet 22 and supports the paper 91 from below in the section from the downstream side of the printing unit 4, passing through the cutting portion 5 and just before reaching the paper outlet 22. Behind the support portion 221, and after the paper outlet 22, the lower surface of the paper 91 is supported by a support portion 211. It should be noted that... Figure 7 In the example shown, support portion 221 and support portion 211 are generally flat surfaces, and the angle between them is an obtuse angle.

[0067] Figure 7 The position of the swinging part 8 shown is the initial position. A preferred position and operation are set to support the paper 91 between the swinging part 8 and the support part 211. As the paper 91 is ejected, the paper 91 and the swinging part 8 interfere with each other. When the upward thrust of the paper 91 exceeds the pressing force of the swinging part 8, the swinging part 8 moves (swings) from the initial position.

[0068] The oscillating part 8 holds the downstream rear end of the cut paper 91 in the transport direction between it and the upper surface (incline) of the support part 211, preventing it from falling from the paper outlet 22. The oscillating part 8 is positioned at a predetermined gap g between the support part 211 and its lower end (bent part 89), eliminating the need for it to press against the support part 211 to hold the paper 91. In other words, the bent part 89 of the oscillating part 8, positioned at a predetermined gap with the support part 211, holds the downstream rear end of the cut paper in the transport direction between it and the incline of the support part 211. Therefore, since the bent part 89 is not always pressed against the support part 211, wear of the oscillating part 8 can be prevented.

[0069] The paper 91 is bent according to the diameter of the roll 90 and has a waist corresponding to its thickness. Therefore, when it is cut and placed on the support 221 and the support 211, its central portion in the length direction moves away from the upper surface of the support 211, maintaining a bent state. The swinging part 8 presses the paper 91 in a direction that weakens the bend and approaches the upper surface of the support 211. The paper 91 receives the pressing force of the swinging part 8, and the swinging part 8 receives the upward pushing force caused by the waist of about one sheet of paper 91. Thus, the paper 91 is held between the swinging part 8 and the support 211. That is, the swinging part 8, relative to the cut paper that has moved away from the upper surface of the support 211 in a bent state corresponding to the diameter of the roll, weakens the bend and pushes it towards the upper surface of the support 211. Thus, the paper 91 can be held with less pressure by utilizing the bend of the roll, and wear of the swinging part 8 can be prevented.

[0070] With the shape and configuration of the swing section 8, the leading edge of the paper 91 is guided by the guide surface 82 to the gap g between the bending section 89 and the support section 221. Then, the paper 91 exits from the paper discharge port 22 through the gap g between the bending section 89 and the support section 221 and reaches the support section 211.

[0071] The imaginary line 95, illustrated by a double-dotted line, connects the downstream end of the support portion 211 in the paper transport direction to the position where the paper 91 is cut by the cutting portion 5 (upstream end of the support portion 221 in the paper transport direction). In this embodiment, this imaginary line 95 is used as a reference when setting the initial position of the swing portion 8.

[0072] The support portion 211 is inclined in such a way that even if the length of the paper 91, which is longer than the front end of the support portion 211, is difficult to fall, it will become increasingly higher towards the downstream side in the paper transport direction. The inclination of the support portion 211 is steeper than the imaginary line 95. As a result, the upper surface of the support portion 211 forms an obtuse angle with the upper surface of the support portion 221.

[0073] The curved portion 89, located in the initial position, interferes with (intersects with) the imaginary line 95. Since the upper surface of the support portion 211 and the upper surface of the support portion 221 form an obtuse angle, a space containing the aforementioned gap g is formed between the imaginary line 95 and the upper surfaces of the support portions 211 and 221.

[0074] In the printer device 1 of this embodiment, the cut paper 91 is placed on the support portion 221 and the support portion 211 while its central portion is bent into a mountain shape. It should be noted that... Figure 7 In the schematic diagram, the overlapping represents the swing part 8 and the bent paper 91 when it is not pressed by the swing part 8 (in the crossed state), but in reality the swing part 8 presses the paper 91 from above, so the paper 91 is located near the imaginary line 95.

[0075] More specifically, the paper 91 is curved according to the diameter of the roll 90, having a waist, so that the central portion of the paper 91 in the longitudinal direction on the support 211 separates from the upper surface of the support 211, maintaining a curved state. The swinging part 8 presses the paper 91 in a direction that reduces this curvature and approaches the upper surface of the support 211. It should be noted that, regarding the degree of curvature of the paper 91, specifically, it can be considered to be close to or less than the curvature state of the paper 91 just before it is pulled out of the roll 90. With this configuration, the swinging part 8 can apply an appropriate pressing force to the paper 91 to prevent it from falling off the support 211.

[0076] Thus, according to this embodiment, a printer device 1 can be provided that uses a swinging part 8, which is not a consumable like a brush, to make it difficult for the cut and ejected paper 91 to fall.

[0077] It should be noted that the above embodiments can also be implemented by appropriately modifying a part of the configuration or function of the above devices. Modifications are described below. In the description of the modifications, the parts that differ from the above embodiments are mainly described; the same symbols are used for parts shared with the above embodiments, and detailed descriptions are omitted.

[0078] (Variation Example 1)

[0079] In practice, there may be steps or uneven shapes between the shaft 81 and the guide surface 82. That is, the shaft 81 and the guide surface 82 may not be flat.

[0080] For example, depending on the manufacturing method or process of the swing part 8 (as an example, the case of a mold), it is sometimes difficult to make the part connecting the shaft 81 to the guide surface 82 flat, and a step is provided in this part accordingly. In addition, for example, in order to reduce the effect of friction with the paper 91, ribs or other uneven shapes are sometimes provided on the surface of the swing part 8 (including the guide surface 82) to reduce the contact area with the paper 91. In practice, these situations are not intended to be excluded.

[0081] For example, in Figure 7 In the example, a concave shape is provided between shaft 81 and guide surface 82, but a convex shape can also be provided. This will be explained below. Figure 9 and Figure 10 To indicate other examples.

[0082] Figure 9 This is a perspective view showing another example of the appearance of the oscillating part 8. The oscillating part 8 has a switching part 83 on the upstream side of the guide surface 82 in the paper transport direction. The switching part 83 is an example of the step or uneven shape between the shaft 81 and the guide surface 82 described above. The switching part 83 shown is the boundary part in the direction of the switching guide surface 82 and its surrounding surface, but in practice, the shape of the switching part 83 can be a groove along the width direction of the paper or a stepped step.

[0083] Figure 10 This is a perspective view showing another example of the appearance of the oscillating part 8. The oscillating part 8 has a rib 84, and a guide surface 82 is provided on the rib 84. In addition, the rear end of the rib 84 (the upstream end in the paper transport direction) corresponds to the switching part 83. The rib 84 is provided to achieve effects such as reducing friction between the paper 91 and the oscillating part 8 or strengthening the oscillating part 8.

[0084] pass Figure 9 and Figure 10 The swinging part 8 shown can also serve as Figure 7 and Figure 8 The effect of the swinging part 8 shown.

[0085] (Variation Example 2)

[0086] Furthermore, during implementation, the initial position of the swinging part 8 is not limited to... Figure 7 For example, the position of the bend 89 can be greater than... Figure 7 The example is located further up, more specifically, between the imaginary line 95 and the bent paper 91 when not pressed by the swing part 8. In this case, the bent state of the paper 91 is the state with the lowest arch height among the imagined states, for example, the state of the paper 91 pulled from the largest diameter roll of paper 90 used in the printer device 1.

[0087] In this configuration, it can also play a role with Figure 7 The configuration shown has roughly the same effect.

[0088] (Variation Example 3)

[0089] Next, the upper surfaces of support portion 211 and support portion 221 may not be as shown. Figure 7The two obtuse-angled surfaces shown can, for example, form adjacent and smoothly continuous concave curved surfaces. In such a configuration, by setting the same imaginary line 95, and arranging the swing portion 8 at the position where it interferes (intersects) with the imaginary line 95 at the lower end (bent portion 89), it is possible to achieve a connection with... Figure 7 The same effect is achieved by constructing it.

[0090] (Variation Example 4)

[0091] Figure 11 This is an enlarged cross-sectional view showing the periphery of the paper feed port 22. In this modified example, the swinging part 8 has, for example, a force-applying member 86 such as a spring. The force-applying member 86 applies force to the swinging part 8 in the direction of pressing the paper 91, thus applying a load to the rotation of the swinging part 8 around the axis 81. This load is used to ensure the normal operation of the swinging part 8 when the paper feed direction of the printer unit 1 is changed from front to upward. The swinging part 8 is in its initial position when there is no interference with the paper 91, and as the paper is fed (the paper 91 is discharged), it bears the load from the paper 91 resisting the force applied by the force-applying member 86.

[0092] When the printer device 1 is conceived to be fixed in orientation, as in the above embodiment, the swinging part 8 can be designed to move by its own weight. However, the printer device 1 is not limited to this. Figure 1 The state shown is that the paper 91 is discharged forward. As long as the paper discharge port 22 is set to face upward in a way that allows the paper 91 to be discharged upward, the design needs to ensure that the operation of the swing unit 8 is not affected even if the direction of the printer device 1 changes relative to the vertical direction.

[0093] As shown in this modified example, by providing a force-applying component 86 that replaces the pressing force in the above embodiment, a swinging part 8 can be designed to allow the printer device 1 to change its direction relative to the vertical direction.

[0094] While several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments may be implemented in various other forms and may be omitted, substituted, modified, or combined in various ways without departing from the spirit of the invention. These embodiments and their variations are included within the scope or spirit of the invention and within the scope of the claims and their equivalents.

Claims

1. A printer device, characterized in that, include: The printing unit performs printing while pulling out and feeding the paper from a roll of paper with a strip of paper wound around its first side. A cutting section is provided downstream of the printing section in the paper transport direction to cut the paper; A support portion is provided downstream of the paper conveying direction of the cutting portion, such that the leading end of the paper moving with the conveying is tilted in a direction that is displaced from the second surface side toward the first surface side, wherein the support portion is a support portion that supports the paper by contacting the second surface, which is the back side of the first surface. as well as The pressing part is located downstream of the paper conveying direction of the cutting part and presses down on the first surface of the paper supported by the support part.

2. The printer apparatus according to claim 1, wherein, The pushing part has an axis at its upstream end in the paper transport direction and is able to swing around the axis, and presses the paper through the portion downstream in the paper transport direction of the axis, namely the pressing part.

3. The printer apparatus according to claim 2, wherein, The pushing part is subjected to force in the direction of pressing the paper against the pressing part.

4. The printer apparatus according to claim 1, wherein, Compared to the imaginary line connecting the front end of the support portion and the cut-off position of the cut-off portion, the inclination of the support portion is steeper. When the paper is not in contact with the paper, the pushing part is located at a position that interferes with the imaginary line.

5. The printer apparatus according to claim 1, wherein, The support portion has a concave curved surface.

6. The printer apparatus according to claim 2, wherein, The pressing part of the pushing part is positioned opposite the support part at a predetermined gap, and holds the downstream end of the cut paper in the conveying direction between the paper and the inclined surface of the support part.

7. The printer apparatus according to claim 6, wherein, The pressing part, relative to the cut paper that is bent in a state corresponding to the diameter of the roll of paper and leaves the upper surface of the support, reduces the bending and pushes it toward the upper surface of the support.

8. The printer apparatus according to claim 7, wherein, Also includes: The sensor detects when the pushing part swings beyond a predetermined degree; as well as The control unit determines that the paper is blocked near the paper discharge port based on the oscillation of the pushing part detected by the sensor.

9. The printer apparatus according to claim 1, wherein, The pressing part has a sheet-like shape that is longer in the width direction of the paper.

10. The printer apparatus according to claim 2, wherein, The pushing part has a guide surface on the upstream side of the paper conveying direction of the pressing part, the guide surface being inclined in a direction from the first surface side to the second surface side.

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