Printing apparatus and

Abstract

The present disclosure provides a printing apparatus capable of detecting a semi-locked state in which an opening / closing portion is not fixed to a main body portion in a state in which the opening / closing portion connected to the main body portion in an openable and closable manner is closed with respect to the main body portion.SOLUTION: The printer includes a printing part for printing on recording paper, a body part 2 for supporting a first part of the printing part, and an opening / closing part 3 connected to the body part 2 rotatably around a rotary shaft 32 orthogonal to the width direction (Y-axis direction) of the recording paper to support a second part of the printing part. The printer also includes an opening / closing lever 8 provided on a side 3E2 of a second end of the opening / closing part 3 opposite to a first end connected to the body part 2, and rotating between a release position where the opening / closing part 3 can be opened / closed and a lock position where the opening / closing part 3 is fixed to the body part 2. In addition, the printing apparatus includes an opening / closing sensor 9 that is provided in the main body 2 and detects that the opening / closing lever 8 is in the lock position.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to printing devices. [Background technology]

[0002] Conventionally, thermal printers are known (see, for example, Patent Document 1). The thermal printer described in Patent Document 1 includes a main body and a cover that is rotatably supported relative to the main body.

[0003] In the thermal printer described in Patent Document 1, the cover is locked to the main body during normal use by a locking mechanism connected to an open / close button on the main body. When the open / close button is pressed, the locking mechanism is linked to the movement of the open / close button, releasing the cover from the main body. The unlocked cover can then rotate around a rotation axis perpendicular to the width direction of the paper relative to the main body and open to the side. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-171114 Summary of the Invention [Problem to be solved by the invention]

[0005] In the thermal printer described in Patent Document 1, the cover is released from the main body by the locking mechanism when the open / close button is pressed, but it is not possible to detect the half-locked state in which the cover is released while the cover is closed. As a result, users of the thermal printer may operate or perform maintenance on the thermal printer without realizing that the thermal printer is in the half-locked state.

[0006] Furthermore, the thermal printer described in Patent Document 1 has an open / close button on the main body. Therefore, if the thermal printer is placed in a limited space, obstacles around the thermal printer may make it difficult to press the open / close button, and the cover may not be able to be released from the locking mechanism on the main body.

[0007] The present disclosure provides a printing device that can detect a semi-locked state in which an opening / closing unit connected to a main body unit is closed relative to the main body unit, and that can unlock the opening / closing unit from the main body unit even in a limited space. [Means for solving the problem]

[0008] One aspect of the present disclosure provides a printing device comprising: a printing unit that prints on recording paper; a main body that supports a first part of the printing unit; an opening / closing unit that is rotatably connected to the main body about a rotation axis perpendicular to the width direction of the recording paper and supports a second part of the printing unit; an opening / closing lever that is provided at a second end of the opening / closing unit opposite the first end connected to the main body and that rotates between an released position that allows the opening / closing unit to be opened and closed and a locked position that fixes the opening / closing unit to the main body; and an opening / closing sensor that is provided on the main body and detects that the opening / closing lever is in the locked position.

[0009] Another aspect of the present disclosure provides a printing device comprising: a printing unit that prints on recording paper; a main body that supports a first portion of the printing unit; an opening / closing unit that is rotatably connected to the main body about a rotation axis perpendicular to the width direction of the recording paper and supports a second portion of the printing unit; and an opening / closing lever that is provided at a second end of the opening / closing unit opposite the first end connected to the main body and that rotates between an released position where the opening / closing unit can be opened and closed and a locked position where the opening / closing unit is fixed to the main body, wherein the opening / closing lever has an engaging portion that extends along the side of the opening / closing unit and engages with a side portion of the main body in the locked position, and an unlocking lever that extends toward the first end of the opening / closing unit in the locked position. [Effects of the Invention]

[0010] According to the above aspects of the present disclosure, it is possible to provide a printing device that can detect a semi-locked state in which the opening / closing unit is closed relative to the main body unit and is not fixed to the main body unit, and a printing device that can release the locked state of the opening / closing unit relative to the main body unit even in a limited space. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a printing apparatus according to a first embodiment. [Figure 2] Perspective view of the main body and opening / closing section [Figure 3] Perspective view of the main body and opening / closing section [Figure 4] Perspective view of the opening / closing lever [Figure 5] Perspective view of the opening / closing lever [Figure 6] Perspective view of the main body [Figure 7] Cross-section of the main body [Figure 8] Perspective view of the main body and opening / closing section [Figure 9] Front view of the main body and opening / closing section [Figure 10] Cross-section of the main body and opening / closing section [Figure 11] 1 is a perspective view of a main body and an opening / closing part in Modification 1. [Figure 12] 10 is a perspective view of a main body and an opening / closing part in Modification 2. [Figure 13] A perspective view of a main body and an opening / closing part in Modification 3. [Figure 14] Cross-sectional view of the main body and the opening / closing part in the second embodiment [Figure 15] 1 is a rear view of a printing device in a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the invention will be described with reference to the drawings.

[0013] [Embodiment 1] Fig. 1 is a perspective view showing a first embodiment of a printing device according to the present disclosure. Figs. 2 and 3 are perspective views of a main body 2 and an opening / closing unit 3 of the printing device 1 shown in Fig. 1. Each figure shows a three-dimensional Cartesian coordinate system having an X axis parallel to the conveyance direction Df of the recording paper P, a Y axis parallel to the width direction of the recording paper P, and a Z axis parallel to the cutting direction Dc of the recording paper P.

[0014] The printing device 1 of this embodiment is, for example, a thermal printer equipped with a thermal printhead 41h, and is used in a multimedia station (MMS), an automated teller machine (ATM), a cash dispenser (CD), a ticket machine, or a cash register installed in a convenience store. The printing device 1 conveys recording paper P, which is, for example, thermal paper, prints information such as letters and numbers on the recording paper P, and then cuts it to output pieces of recording paper such as tickets or receipts.

[0015] The printing device 1 includes, for example, a main body 2, an opening / closing unit 3, a printing unit 4, a cutting unit 5, a base unit 6, and a recording paper holder 7. The main body 2 is, for example, a main frame fixed to the base unit 6, and has the opening / closing unit 3, the printing unit 4, the cutting unit 5, etc. attached thereto.

[0016] The opening / closing unit 3 is, for example, an openable top portion located above the side of the main body 2 where recording paper is inserted. In Fig. 2, the opening / closing unit 3 provided on the main body 2 is in a fully closed state, and in Fig. 3, the opening / closing unit 3 is in a fully open state. The opening / closing unit 3 has, for example, a rectangular planar shape with its longitudinal direction aligned with the width direction of the recording paper P, which is roll paper.

[0017] A rotation shaft 31 is provided at a first end 3E1 in the longitudinal direction of the opening / closing unit 3. The rotation shaft 31 is inserted into a through-hole provided in the main body 2, and is generally parallel to the conveyance direction Df (X-axis direction) of the recording paper P and generally perpendicular to the width direction (Y-axis direction) and cutting direction Dc (Z-axis direction) of the recording paper P. The opening / closing unit 3 is connected to the main body 2 so as to be rotatable about the rotation shaft 31, and is configured to be openable and closable relative to the main body 2.

[0018] 2 is disposed around the pivot shaft 31. The torsion spring 31s has, for example, a first arm that contacts the main body 2 and a second arm that contacts the opening / closing unit 3, and urges the opening / closing unit 3 in a direction that opens the main body 2 when the opening / closing unit 3 is closed relative to the main body 2. This allows the opening / closing unit 3 to be easily opened from a state in which it is closed relative to the main body 2, and prevents the opening / closing unit 3 from closing forcefully from a state in which it is open relative to the main body 2 as shown in FIG.

[0019] An opening / closing lever 8 is provided at a second end 3E2 of the opening / closing unit 3, which is opposite to the first end 3E1 connected to the main body 2. The opening / closing lever 8 is rotatably supported, for example, by a rotation shaft 32 provided on the opening / closing unit 3. As will be described in detail later, the opening / closing lever 8 rotates between an open position where the opening / closing unit 3 can be opened and closed, and a locked position where the opening / closing unit 3 is fixed to the main body 2. The opening / closing lever 8 also functions as a handle when opening the opening / closing unit 3, for example, from the closed state shown in FIGS. 1 and 2, to the opening / closing unit 3 shown in FIG. 3.

[0020] Although not shown, a torsion spring may be arranged around the pivot shaft 32 in the same manner as the pivot shaft 31. In this case, the torsion spring around the pivot shaft 32 may have a first arm that abuts against the opening / closing unit 3 and a second arm that abuts against the opening / closing lever 8. As a result, the torsion spring around the pivot shaft 32 biases the opening / closing lever 8 around the axis of the pivot shaft 32 so that, for example, when the opening / closing lever 8 is in the open position, the opening / closing lever 8 rotates toward the locked position.

[0021] 3, the printing unit 4 includes a head unit 41 as a first part that prints on recording paper P, and a platen unit 42 as a second part that transports recording paper P. In the example shown, the head unit 41 is attached to, for example, the main frame of the main body 2, and the platen unit 42 is attached to, for example, the opening / closing unit 3. That is, the main body 2 supports the head unit 41 as the first part of the printing unit 4, and the opening / closing unit 3 supports the platen unit 42 as the second part of the printing unit 4. The main body 2 is provided with a head frame 23 that supports the head unit 41.

[0022] Although not shown in the drawings, the arrangement of the head unit 41 and the platen unit 42 relative to the main body 2 and the opening / closing unit 3 can be reversed. That is, the main body 2 can support the platen unit 42 as a first part of the printing unit 4, and the opening / closing unit 3 can support the head unit 41 as a second part of the printing unit 4. In this case, a head frame similar to the head frame 23 provided in the main body 2 is provided in the opening / closing unit 3 that supports the head unit 41.

[0023] The head unit 41 includes, for example, a thermal printhead 41h which is a print head, and the platen unit 42 includes a platen roller 42r which transports the recording paper P.

[0024] A transport drive system, including a motor and gears that rotate the platen roller 42r of the platen unit 42, is attached, for example, to the main body 2. In the printing device 1, for example, by closing the opening / closing unit 3, a gear provided on the platen roller 42r is connected to a gear of the transport drive system attached to the main body 2. In the printing unit 4, for example, the platen roller 42r transports the recording paper P inserted between the head unit 41 and the platen unit 42 in the transport direction Df, and the thermal printhead 41h prints on the recording paper P.

[0025] The cutting unit 5 includes, for example, a fixed blade 51 supported by the opening / closing unit 3, and a movable blade 52 supported by the main body 2 and positioned adjacent to the fixed blade 51 in the conveyance direction Df of the recording paper P. The movable blade 52 is positioned, for example, adjacent to the front side of the fixed blade 51 in the conveyance direction Df of the recording paper P. The cutting unit 5 also includes a cutter drive unit 53 that supports the movable blade 52 and moves it up and down. The details will be described later, but the cutting unit 5 also includes, for example, a biasing unit 54 (see FIG. 10) that biases the fixed blade 51 toward the movable blade 52.

[0026] As shown in FIG. 3, the fixed blade 51 is disposed along the longitudinal direction of the rectangular opening / closing unit 3 and is supported by the opening / closing unit 3. The fixed blade 51 has an elongated shape extending in the width direction of the recording paper P. In other words, the longitudinal direction of the fixed blade 51 coincides with the longitudinal direction of the opening / closing unit 3. The movable blade 52 is supported by the main body 2 by attaching the cutting unit 5 to the main body 2. The movable blade 52 is provided so as to be movable by the cutter driving unit 53 along the cutting direction Dc, which is an operating direction that is approximately perpendicular to the conveyance direction Df of the recording paper P.

[0027] The cutter drive unit 53 is always connected to, for example, a motor and a gear. The cutter drive unit 53 includes, for example, a motor, gears, a link mechanism, etc. attached to the main body 2, and by driving the motor, moves the movable blade 52 back and forth in the cutting direction Dc and the opposite direction. The cutter drive unit 53 operates, for example, the movable blade 52 between a standby position before starting to cut the recording paper P and a completion position where cutting of the recording paper P is completed.

[0028] In the cutting unit 5, the fixed blade 51 supported by the opening / closing unit 3 is biased toward the movable blade 52 by the biasing unit 54, and the cutter driving unit 53 reciprocates the movable blade 52 along the cutting direction Dc of the recording paper P. In this way, the cutting unit 5 cuts the recording paper P printed by the printing unit 4 between the fixed blade 51 and the movable blade 52.

[0029] 1, the base unit 6 is a rectangular plate-shaped member that serves as a base for the printing device 1. The main body 2 and a recording paper holder 7 are arranged adjacent to each other on the base unit 6 and are fixed to the base unit 6. The recording paper holder 7 rotatably supports recording paper P, which may be, for example, roll paper, and continuously supplies the recording paper P between the head unit 41 and platen unit 42 of the printing unit 4.

[0030] 2, the printing device 1 of this embodiment is characterized by a configuration in which, when the opening / closing unit 3 is closed relative to the main body 2, the opening / closing lever 8 detects the locked position of the opening / closing lever 8, which secures the opening / closing unit 3 to the main body 2. Furthermore, the printing device 1 of this embodiment is characterized by a configuration in which, when the opening / closing unit 3 is closed relative to the main body 2, the opening / closing lever 8 can release the locked state of the opening / closing unit 3, even if there is not enough space around the opening / closing unit 3 for the user to reach in, as shown in FIG.

[0031] The characteristic configuration of the printing device 1 of this embodiment will be described in detail below with reference to Figures 4 to 10. Figures 4 and 5 are perspective views of the opening / closing lever 8. Figure 6 is a perspective view of the side of the main body 2 with which the opening / closing lever 8 engages. Figure 7 is a cross-sectional view of the main body 2 taken along line VII-VII in Figure 6, showing the opening / closing unit 3 in the locked and unlocked states.

[0032] 4 and 5, the opening / closing lever 8 has an engaging portion 81. The opening / closing lever 8 may also have a handle portion 82 and a pivot support portion 83. The opening / closing lever 8 may also have a lock release lever 84 and an extension portion 85. As shown in FIGS. 6 and 7, the printing device 1 is also provided with an opening / closing sensor 9 that is provided on the main body 2 and detects that the opening / closing lever 8 is in the locked position.

[0033] When the opening / closing lever 8 is in the locked position shown in the left diagram of FIG. 7, the engaging portion 81 extends along the side surface of the opening / closing unit 3 and engages with the side of the main body 2. Specifically, as shown in FIGS. 2 and 5, for example, the opening / closing lever 8 has a pair of engaging portions 81 provided at both longitudinal ends of a handle portion 82 along the second end 3E2 of the opening / closing unit 3. The pair of engaging portions 81 are connected by a flat plate-shaped reinforcing portion 81b. When the opening / closing lever 8 is in the locked position, for example, each engaging portion 81 engages with the side of the main body 2 by hooking a claw 81c provided at the tip end adjacent to the side of the main body 2 onto a shaft portion 21 provided on the side of the main body 2 shown in FIG.

[0034] In the example shown in FIG. 6 , the shaft 21, which engages the pawl 81c of the engagement portion 81 of the opening / closing lever 8, is provided between a gear box body 24e of a gear box 24 provided on the side of the main body 2 and a frame end wall 24f. The gear box body 24e houses, for example, a conveyance gear that meshes with a gear of a platen roller 42r of the platen unit 42 when the opening / closing unit 3 is closed relative to the main body 2. The frame end wall 24f of the gear box 24 protrudes approximately symmetrically to the front and rear sides in the conveyance direction Df of the recording paper P at the upper end of the gear box 24, and has an L-shape in side view. Each shaft 21 has a cylindrical shape with a central axis approximately parallel to the conveyance direction Df of the recording paper P. One end of the shaft 21 is connected to the gear box body 24e, and the other end of the shaft 21 is connected to the frame end wall 24f.

[0035] 2 and 4, the handle 82 is provided at the base end of the engagement portion 81 adjacent to the opening / closing portion 3, and protrudes away from the side surface of the opening / closing portion 3 when the opening / closing lever 8 is in the locked position. When the opening / closing lever 8 is in the locked position, the protruding direction of the handle 82 is the width direction (Y-axis direction) of the recording paper P, and is a direction roughly perpendicular to the length direction of the engagement portion 81, which extends in the cutting direction (Z-axis direction) of the recording paper P. As shown in FIGS. 4 and 5, a protrusion 82p is provided at the tip of the handle 82 in the protruding direction, protruding toward the tip side of the engagement portion 81. This allows the user of the printing device 1 to grip the handle 82 and hook their finger on the protrusion 82p when lifting the handle 82 with their hand.

[0036] As shown in Fig. 5, the pivotal support portion 83 protrudes from the base end of the engagement portion 81 in the opposite direction to the handle portion 82 and is pivotally supported by the opening / closing unit 3. Specifically, the opening / closing lever 8 has, for example, a pair of pivotal support portions 83 provided on both sides in the longitudinal direction of the handle portion 82 along the second end portion 3E2 of the opening / closing unit 3 shown in Fig. 2. Each of the pivotal support portions 83 has a through hole 83a through which the rotation shaft 32 provided at the second end portion 3E2 of the opening / closing unit 3 is inserted. The pair of pivotal support portions 83 are pivotally supported by the opening / closing unit 3 so as to be freely rotatable, for example, by inserting the rotation shaft 32 provided at the opening / closing unit 3 into the through hole 83a provided in each of the pivotal support portions 83.

[0037] 2, for example, when the opening / closing lever 8 is in the locked position, the unlocking lever 84 extends toward the first end 3E1 of the opening / closing unit 3. The unlocking lever 84 also extends, for example, along the top surface of the opening / closing unit 3, which is the end surface of the opening / closing unit 3 opposite the main body 2. Specifically, when the opening / closing lever 8 is in the locked position, the unlocking lever 84 extends along the top surface of the cover 33 of the opening / closing unit 3, from the second end 3E2 of the opening / closing unit 3 toward the first end 3E1.

[0038] 2, the cover 33 of the opening / closing unit 3 has a notch 34 shaped to follow the outline of the unlocking lever 84. When the opening / closing lever 8 is in the locked position, the unlocking lever 84 is housed in the notch 34 provided in the cover 33 of the opening / closing unit 3 and extends in the width direction (Y-axis direction) of the recording paper P along the top surface of the cover 33. In the example shown in the left diagrams of FIGS. 2 and 7, when the opening / closing lever 8 is in the locked position, at least a part of the unlocking lever 84 protrudes from the end face of the opening / closing unit 3 opposite the main body 2.

[0039] 2 and the left diagram of FIG. 7, a portion of the unlocking lever 84 protrudes from the top surface of the opening / closing unit 3, which is the end surface of the opening / closing unit 3 opposite the main body 2. In more detail, when the opening / closing lever 8 is in the locked position, one end of the unlocking lever 84 in the cutting direction Dc (Z-axis direction) of the recording paper P protrudes upward (outside the cover 33) from the base end to the tip of the unlocking lever 84 extending in the width direction of the recording paper P (Y-axis direction).

[0040] As shown in the left diagram of FIG. 7, when the opening / closing lever 8 is in the locked position, the extension 85 extends along the side of the opening / closing unit 3 and the main body 2 to a position farther away from the opening / closing unit 3 than the engagement portion 81. As shown in FIGS. 4 and 5, the extension 85 has a protrusion 85c at its tip. When the opening / closing lever 8 is in the locked position shown in the left diagram of FIG. 7, the protrusion 85c is arranged to protrude more toward the side of the main body 2 than the other parts of the extension 85. The top surface of the protrusion 85c that faces the side of the main body 2 when the opening / closing lever 8 is in the locked position is a plane that is approximately perpendicular to the width direction (Y-axis direction) of the recording paper P.

[0041] 4, the extension 85 has a rib 85r that protrudes in the opposite direction from the protrusion 85c from the surface opposite to the surface on which the protrusion 85c is provided. The rib 85r extends, for example, from the base end of the extension 85 connected to the handle 82 to the tip of the extension 85. The height of the rib 85r in the protruding direction increases as it approaches the base end of the extension 85. The rib 85r improves the rigidity of the extension 85 against a force acting on the protrusion 85c at the tip of the extension 85 in the protruding direction of the rib 85r.

[0042] 6, the opening / closing sensor 9 that detects the locked position of the opening / closing lever 8 is mounted on a circuit board 93 and attached to a support plate 25 on the side of the main body 2. The support plate 25 is, for example, a plate-shaped member that is generally parallel to the width direction (Y-axis direction) and cutting direction Dc (Z-axis direction) of the recording paper P, and is attached to the side wall of the main body 2. The circuit board 93 is attached so as to be sandwiched between the frame end wall 24f of the gear box 24 and the support plate 25.

[0043] The opening / closing sensor 9 detects that the opening / closing lever 8 is in the locked position, for example, depending on the position of the side surface of the extension 85 facing the main body 2. Specifically, as shown in the left diagram of FIG. 7, for example, the opening / closing sensor 9 has a plunger 92 that detects the locked position of the opening / closing lever 8 by being pushed in by the opening / closing lever 8 in the locked position. Furthermore, the plunger 92 protrudes, for example, toward the side surface of the extension 85 facing the main body 2 when the opening / closing lever 8 is in the locked position.

[0044] More specifically, as shown in Fig. 6, the open / close sensor 9 has a roughly rectangular parallelepiped main body 91 and a plunger 92 that protrudes from the main body 91 outward in the width direction of the recording paper P. The main body 91 is mounted on a circuit board 93. The plunger 92 is urged outward in the width direction of the recording paper P by, for example, a spring inside the main body 91, and opens a switch connected to an electronic circuit on the circuit board 93 when pressed into the main body 91. The circuit board 93 has, for example, an electronic circuit that detects the locked position of the open / close lever 8 when the switch is opened by the plunger 92.

[0045] 6, the support plate 25 has a guide portion 25g that protrudes outward in the width direction (Y-axis direction) of the recording paper P at the center in the cutting direction Dc (Z-axis direction) of the recording paper P. The surface of the guide portion 25g that faces the open / close sensor 9 is inclined so that it gets farther away from the open / close sensor 9 the further outward in the width direction of the recording paper P it is. As a result, when the open / close lever 8 rotates from the release position to the lock position, the guide portion 25g guides the extension portion 85 to face the end face of the main body portion 91 from which the plunger 92 protrudes, so that the extension portion 85 can reliably push in the plunger 92 of the open / close sensor 9.

[0046] Furthermore, in the printing device 1 of this embodiment, the opening / closing lever 8 has a function to clear paper jams. A paper jam occurs when the recording paper P becomes caught between the fixed blade 51 and the movable blade 52 when the recording paper P is being cut by the cutting unit 5, preventing the movable blade 52 from operating. The function of clearing paper jams using the opening / closing lever 8 of the printing device 1 of this embodiment will be described below with reference to Figures 8 to 10.

[0047] Fig. 8 is a perspective view of the main body 2 and the opening / closing unit 3 with the cover 33 of the opening / closing unit 3 removed. Fig. 9 is a front view of the main body 2 and the opening / closing unit 3 near the opening / closing lever 8, showing the operation of the opening / closing lever 8. Fig. 10 is a cross-sectional view of the main body 2 and the opening / closing unit 3 taken along line XX in Fig. 9.

[0048] In the printing device 1 of this embodiment, the fixed blade 51 of the cutting unit 5 is supported so as to be able to swing by the opening / closing unit 3. Specifically, as shown in Fig. 8, the fixed blade 51 has tongue-shaped protrusions 51p on the edge along the longitudinal direction on the opposite side from the movable blade 52 in the cutting direction Dc (Z-axis direction) of the recording paper P. The fixed blade 51 has, for example, a pair of protrusions 51p between both longitudinal ends and the center.

[0049] As shown in FIG. 2, the protrusion 51p of the fixed blade 51 is inserted into a through hole 35 provided in the cover 33 of the opening / closing unit 3. A gap is formed in the conveying direction Df of the recording paper P between the through hole 35 of the opening / closing unit 3 and the protrusion 51p of the fixed blade 51. As shown in FIG. 8, the fixed blade 51 has a through hole 51a near the protrusion 51p. The protrusion 36 of the opening / closing unit 3 is inserted into the through hole 51a of the fixed blade 51. The protrusion 36 is provided on the opening / closing unit 3 and protrudes forward in the conveying direction Df of the recording paper P. A gap is formed in the cutting direction Dc of the recording paper P between the through hole 51a of the fixed blade 51 and the protrusion 36 of the opening / closing unit 3.

[0050] As shown in the left diagram of FIG. 10 , the cutting unit 5 also has a biasing member 54 that biases the fixed blade 51 in the direction of arrow A1 toward the movable blade 52. The biasing member 54 is, for example, a plate spring fixed to the opening / closing unit 3. The movable blade 52 is positioned further forward in the conveyance direction Df of the recording paper P than the fixed blade 51. As described above, the fixed blade 51 is biased forward in the conveyance direction Df of the recording paper P by the biasing member 54, with the protrusion 51p inserted into the through-hole 35 of the opening / closing unit 3 and the protrusion 36 of the opening / closing unit 3 inserted into the through-hole 51a.

[0051] With this configuration, the fixed blade 51 is supported so as to be able to swing by the opening / closing unit 3. As shown in the left diagram of Fig. 10, when no force is acting rearward in the transport direction Df of the recording paper P, the fixed blade 51 is urged forward in the transport direction Df of the recording paper P by the urging unit 54, and is positioned at a normal position where it can cut the recording paper P. On the other hand, when a force greater than the urging force of the urging unit 54 acts rearward in the transport direction Df of the recording paper P, the tip of the fixed blade 51 swings rearward in the transport direction Df of the recording paper P, with the through-hole 35 of the opening / closing unit 3 as a fulcrum, as shown in the right diagrams of Figs. 2 and 10.

[0052] 9 and 10, when the opening / closing lever 8 is in the locked position, the unlocking lever 84 is located at a normal position closer to the fixed blade 51 in the biasing direction of the biasing portion 54 (the direction of arrow A1 in the left view of FIG. 10). In other words, as shown in the left views of FIGS. 8 and 9, when the opening / closing lever 8 is in the locked position, the unlocking lever 84 is located at a normal position closer to the front of the fixed blade 51 in the conveyance direction Df of the recording paper P. In this normal position, the unlocking lever 84 is located, for example, above and in front of the fixed blade 51 as shown in the left view of FIG. 10, and is not in contact with the fixed blade 51. On the other hand, when the opening / closing lever 8 is rotated from the locked position to the released position, the unlocking lever 84 rotates toward the movable blade 52 in the cutting direction Dc of the recording paper P, and is located at the paper release position, as shown in the right views of FIGS. 9 and 10.

[0053] 10, the lock release lever 84 pivots to push the fixed blade 51 in the direction of arrow A2 against the biasing force of the biasing unit 54, separating the tip of the fixed blade 51 from the movable blade 52. Here, the direction of arrow A2 in which the lock release lever 84 separates the fixed blade 51 from the movable blade 52 is opposite to the biasing direction of arrow A1 of the biasing unit 54 shown in the left diagram of FIG. 10. In this way, the lock release lever 84 is disposed at the paper release position in which the fixed blade 51 is separated from the movable blade 52 in the direction opposite to the biasing direction of the biasing unit 54 at the release position of the opening / closing lever 8 shown in the right diagram of FIG. 9 and the right diagram of FIG.

[0054] The operation of the printing device 1 of this embodiment will be described below based on a comparison with a printing device in a comparative example that is different from the printing device according to the present disclosure.

[0055] 15 is an enlarged rear view of a portion of the main body C2 and the opening / closing part C3 of a printing device in a comparative example. The printing device in the comparative example differs from the printing device 1 of this embodiment mainly in that the opening / closing sensor C9 is provided at the upper end of the main body C2 facing the opening / closing part C3, and in that the opening / closing lever C8 does not have the lock release lever 84 or the extension part 85. The other configurations of the printing device in the comparative example are the same as those of the printing device 1 of this embodiment.

[0056] The opening / closing sensor C9 of the printing device of the comparative example detects that the opening / closing unit C3 is open when the opening / closing unit C3 is not closed relative to the main body C2 and the plunger C92 of the opening / closing sensor C9 is not pushed in, as shown in the left diagram of Fig. 15. The opening / closing sensor C9 of the printing device of the comparative example also detects that the opening / closing unit C3 is closed relative to the main body C2 and the plunger C92 of the opening / closing sensor C9 is pushed in by the opening / closing unit C3, as shown in the right diagram of Fig. 15. However, the opening / closing sensor C9 of the printing device of the comparative example cannot detect a half-locked state in which the opening / closing lever C8 is not engaged with the side of the main body C2.

[0057] In contrast, the printing device 1 of this embodiment includes the printing unit 4, main body 2, opening / closing unit 3, opening / closing lever 8, and opening / closing sensor 9, as described above. The printing unit 4 prints information such as letters and numbers on recording paper P. The main body 2 supports a head unit 41 as a first part of the printing unit 4. The opening / closing unit 3 is rotatably connected to the main body 2 about a rotation axis 31 perpendicular to the width direction of the recording paper P, and supports a platen unit 42 as a second part of the printing unit 4. The opening / closing lever 8 is provided at a second end 3E2 of the opening / closing unit 3 opposite to a first end 3E1 connected to the main body 2, and rotates between an open position where the opening / closing unit 3 can be opened and closed, and a locked position where the opening / closing unit 3 is fixed to the main body 2. The opening / closing sensor 9 is provided at the main body 2 and detects when the opening / closing lever 8 is in the locked position.

[0058] With this configuration, the opening / closing unit 3 can be fixed to the main body 2 by closing the opening / closing unit 3 relative to the main body 2 as shown in FIG. 2 from a state in which the opening / closing unit 3 is open relative to the main body 2 as shown in FIG. 3 and rotating the opening / closing lever 8 from the release position to the lock position. At this time, as shown in the right diagram of FIG. 7 , by rotating the opening / closing lever 8, which is in the release position with the opening / closing unit 3 closed relative to the main body 2, to the lock position shown in the left diagram of FIG. 7 , the opening / closing sensor 9 detects that the opening / closing lever 8 is in the lock position. In other words, in a semi-locked state in which the opening / closing unit 3 is closed relative to the main body 2 and the opening / closing lever 8 is not in the lock position, the opening / closing sensor 9 detects that the opening / closing lever 8 is in the release position. Therefore, according to the printing device 1 of this embodiment, it is possible to detect a semi-locked state in which the opening / closing unit 3 is closed relative to the main body 2 and not fixed to the main body 2 based on the detection result of the opening / closing sensor 9.

[0059] Furthermore, in the printing device 1 of this embodiment, the opening / closing sensor 9 has a plunger 92 that detects the locked position of the opening / closing lever 8 by being pushed in by the opening / closing lever 8 in the locked position. With this configuration, it is possible to detect that the opening / closing lever 8 is in the locked position using a simple plunger-type opening / closing sensor 9. This reduces the component costs of the printing device 1 and simplifies the structure of the printing device 1.

[0060] Furthermore, in the printing device 1 of this embodiment, the opening / closing lever 8 has an engagement portion 81 and an extension portion 85. When the opening / closing lever 8 is in the locked position, the engagement portion 81 extends along the side surface of the opening / closing unit 3 and engages with the side portion of the main body unit 2. When the opening / closing lever 8 is in the locked position, the extension portion 85 extends along the side surface of the opening / closing unit 3 to a position farther away from the opening / closing unit 3 than the engagement portion 81. Furthermore, the opening / closing sensor 9 detects that the opening / closing lever 8 is in the locked position based on the position of the side surface of the extension portion 85 that faces the main body unit 2.

[0061] This configuration prevents the opening / closing lever 8 from being detected as being in the locked position before the engaging portion 81 of the opening / closing lever 8 engages with the side of the main body 2, i.e., prevents erroneous detection by the opening / closing sensor 9. More specifically, when the opening / closing lever 8 is in the locked position shown in the left diagram of FIG. 7 , the extension portion 85 extends along the side of the opening / closing unit 3 and the side of the main body 2 to a position farther away from the opening / closing unit 3 than the engaging portion 81. Therefore, when the opening / closing lever 8 is rotated to the locked position and the engaging portion 81 engages with the side of the main body 2, or after that, the opening / closing sensor 9 detects that the opening / closing lever 8 is in the locked position based on the position of the side of the extension portion 85. This allows the opening / closing sensor 9 to more reliably detect that the opening / closing lever 8 is in the locked position. Therefore, the printing device 1 of this embodiment can more reliably detect the semi-locked state of the opening / closing unit 3, in which the opening / closing lever 8 is in the released position while the opening / closing unit 3 is closed relative to the main body 2, as shown in the right diagram of FIG. 7 .

[0062] More specifically, the plunger 92 of the opening / closing sensor 9 protrudes toward the side surface of the extension portion 85 that faces the main body 2 when the opening / closing lever 8 is in the locked position. This prevents the plunger 92 of the opening / closing sensor 9 from being pushed in before the engagement portion 81 of the opening / closing lever 8 engages with the side surface of the main body 2. More specifically, when the opening / closing lever 8 is in the locked position shown in the left diagram of FIG. 7 , the extension portion 85 extends along the side surface of the opening / closing unit 3 and the side surface of the main body 2 to a position that is farther away from the opening / closing unit 3 than the engagement portion 81. Therefore, the extension portion 85 can fully push in the plunger 92 of the opening / closing sensor 9 at or after the opening / closing lever 8 is rotated to the locked position and the engagement portion 81 engages with the side surface of the main body 2. This allows the opening / closing sensor 9 to more reliably detect that the opening / closing lever 8 is in the locked position. Therefore, according to the printing device 1 of this embodiment, it is possible to more reliably detect the semi-locked state of the opening / closing unit 3, in which the opening / closing unit 3 is closed relative to the main body 2 and the opening / closing lever 8 is in the released position, as shown in the right diagram of Figure 7.

[0063] Furthermore, the opening / closing lever 8 of the printing device 1 of this embodiment has a lock release lever 84 that extends toward the first end 3E1 of the opening / closing unit 3 when in the locked position.

[0064] With this configuration, for example, even if the printing device 1 is housed in a housing and there is not enough space for the user of the printing device 1 to fit their hand around the opening / closing lever 8, the opening / closing lever 8 can be rotated from the locked position to the released position by pushing the unlocking lever 84 toward the main body 2. Specifically, by pushing the unlocking lever 84 of the opening / closing lever 8, which is in the locked position shown in the left diagram of FIG. 7, toward the main body 2, the opening / closing lever 8 rotates from the locked position to the released position as shown in the right diagram of FIG. 7, and the opening / closing part 3 can be opened relative to the main body 2.

[0065] Furthermore, in the opening / closing lever 8 of the printing device 1 of this embodiment, at least a part of the unlocking lever 84 protrudes from the end face of the opening / closing unit 3 opposite to the main body unit 2 when in the locked position.

[0066] With this configuration, the user of the printing device 1 can visually understand that the opening / closing lever 8 rotates from the locked position to the released position by pushing the unlocking lever 84 toward the main body 2. Furthermore, the user of the printing device 1 can more easily rotate the opening / closing lever 8 from the locked position to the released position by pushing the unlocking lever 84, which protrudes from the end face of the opening / closing unit 3 opposite the main body 2, toward the main body 2.

[0067] Furthermore, in the printing device 1 of this embodiment, the unlocking lever 84 of the opening / closing lever 8 is disposed at the front end of the opening / closing unit 3 in the transport direction Df of the recording paper P, but it may also be disposed at the rear end of the opening / closing unit 3 in the transport direction Df of the recording paper P. This configuration improves the degree of freedom in designing the printing device 1.

[0068] The printing device 1 of this embodiment also includes a cutting unit 5 that cuts the recording paper P. The cutting unit 5 has a fixed blade 51 supported by the opening / closing unit 3, a movable blade 52 supported by the main body 2 and positioned adjacent to the fixed blade 51 in the transport direction Df of the recording paper P, and a biasing unit 54 that biases the fixed blade 51 toward the movable blade 52. When the opening / closing lever 8 is in the locked position, the unlocking lever 84 of the opening / closing lever 8 is positioned at a normal position that is closer to the biasing direction of the biasing unit 54 than the fixed blade 51. When the opening / closing lever 8 is in the released position, the unlocking lever 84 of the opening / closing lever 8 is positioned at a paper release position that separates the fixed blade 51 from the movable blade 52 in the direction opposite to the biasing direction of the biasing unit 54.

[0069] With this configuration, by moving the opening / closing lever 8 from the locked position to the released position as shown in Fig. 9, the fixed blade 51 can be separated from the movable blade 52 by the lock release lever 84 as shown in Fig. 10. As a result, if a paper jam occurs in which recording paper P is caught between the fixed blade 51 and the movable blade 52 and the movable blade 52 cannot be operated, the opening / closing lever 8 can be moved from the locked position to the released position to separate the fixed blade 51 from the movable blade 52 and clear the paper jam.

[0070] The printing device 1 of this embodiment also includes a printing unit 4, a main body 2, an opening / closing unit 3, and an opening / closing lever 8. The printing unit 4 prints information such as letters and numbers on recording paper P. The main body 2 supports a head unit 41 as a first part of the printing unit 4. The opening / closing unit 3 is rotatably connected to the main body 2 about a rotation axis 31 perpendicular to the width direction of the recording paper P, and supports a platen unit 42 as a second part of the printing unit 4. The opening / closing lever 8 is provided at a second end 3E2 of the opening / closing unit 3 opposite a first end 3E1 connected to the main body 2, and rotates between an open position where the opening / closing unit 3 can be opened and closed, and a locked position where the opening / closing unit 3 is fixed to the main body 2. The opening / closing lever 8 has an engaging portion 81 that extends along the side of the opening / closing unit 3 and engages with the side of the main body 2 in the locked position, and an unlocking lever 84 that extends toward the first end 3E1 of the opening / closing unit 3 in the locked position.

[0071] With this configuration, for example, even if the printing device 1 is housed in a housing and there is not enough space around the opening / closing lever 8 for the user of the printing device 1 to fit their hand, the opening / closing lever 8 can be rotated from the locked position to the released position by pushing the unlocking lever 84 toward the main body 2. Specifically, by pushing the unlocking lever 84 of the opening / closing lever 8, which is in the locked position shown in the left diagram of FIG. 7, toward the main body 2, the opening / closing lever 8 rotates from the locked position to the released position as shown in the right diagram of FIG. 7, and the opening / closing unit 3 can be opened relative to the main body 2. Therefore, with the printing device 1 of this embodiment, it is possible to release the locked state of the opening / closing unit 3 relative to the main body 2 even in a limited space.

[0072] As described above, this embodiment can provide a printing device 1 that can detect a semi-locked state in which the opening / closing unit 3, which is openably connected to the main body 2, is not fixed to the main body 2 when the opening / closing unit 3 is closed relative to the main body 2. Furthermore, this embodiment can provide a printing device 1 that can release the locked state of the opening / closing unit 3 relative to the main body 2 even in a limited space.

[0073] The printing device 1 of this embodiment is not limited to the configuration described above. Modifications of the printing device 1 of this embodiment will be described below. Figures 11 and 12 are perspective views of the main body 2 and the opening / closing unit 3 in Modifications 1 and 2 of the printing device 1, respectively. In these modifications, a protrusion 84b is provided at the tip of the lock release lever 84 of the opening / closing lever 8, protruding from the end face of the opening / closing unit 3 on the side opposite to the main body 2.

[0074] 11 and 12, when the opening / closing lever 8 is in the locked position, only the protrusion 84b of the unlocking lever 84 protrudes from the top surface of the cover 33, which is the end surface opposite the main body 2 of the opening / closing unit 3. The end surface of the unlocking lever 84 opposite the main body 2, excluding the protrusion 84b, is flush with the top surface of the cover 33 without any steps, as the unlocking lever 84 is housed in the cutout portion 34 of the cover 33.

[0075] 11, the shape of the protrusion 84b is rectangular when viewed from a direction perpendicular to the top surface of the cover 33. In the example shown in Fig. 12, the shape of the protrusion 84b when viewed from a direction perpendicular to the top surface of the cover 33 is an oval or track shape with arcs at both ends in the longitudinal direction of the unlocking lever 84 and a straight portion between them. The shape of the protrusion 84b is not particularly limited.

[0076] In this way, the tip of the unlock lever 84 is provided with a protrusion 84b that protrudes from the end face of the opening / closing unit 3 opposite the main body 2, allowing the user of the printing device 1 to press the protrusion 84b to rotate the opening / closing lever 8 from the locked position to the released position. This not only makes it easier to rotate the opening / closing lever 8 to release the locked state in which the opening / closing unit 3 is fixed to the main body 2, but also allows the user to visually understand that they can press the protrusion 84b to release the locked state of the opening / closing unit 3. Furthermore, because no part other than the protrusion 84b protrudes from the end face of the opening / closing unit 3 opposite the main body 2, erroneous operation of the opening / closing lever 8 and accidental release of the locked state of the opening / closing unit 3 can be prevented.

[0077] 13 is a perspective view of the main body 2 and the opening / closing part 3 in Modification 3 of the printing device 1 of this embodiment. In the printing device 1 of this embodiment, the opening / closing sensor 9 is provided on the side of the main body 2 on the rear side in the transport direction Df of the recording paper P, as shown in Fig. 6, and the opening / closing lever 8 has an extension part 85 on the rear side in the transport direction Df of the recording paper P, as shown in Fig. 8.

[0078] However, in the printing device 1 of Modification 3 shown in Figure 13, the open / close sensor 9 and the extension 85 of the open / close lever 8 are provided on the side of the main body 2, forward in the transport direction Df of the recording paper P. The printing device 1 of Modification 3 can also achieve the same effects as the printing device 1 of the above-mentioned Embodiment 1. In other words, the positions of the open / close sensor 9 and the extension 85 of the open / close lever 8 are not particularly limited.

[0079] [Embodiment 2] Next, a second embodiment of the printing device according to the present disclosure will be described with reference to Fig. 14. Fig. 14 is an enlarged cross-sectional view of a portion of the main body 2 and the opening / closing unit 3 in the second embodiment of the printing device according to the present disclosure.

[0080] The printing device 1 of this embodiment differs from the printing device 1 of the first embodiment described above in that the opening / closing lever 8 does not have an extension 85, and that the plunger 92 of the opening / closing sensor 9 protrudes in the cutting direction Dc of the recording paper P toward the top surface of the main body 2 facing the opening / closing unit 3. The other configurations of the printing device 1 of this embodiment are the same as those of the printing device 1 of the first embodiment described above, so similar parts are given the same reference numerals and their explanations will be omitted.

[0081] As shown in the left diagram of FIG. 14, in the printing device 1 of this embodiment, the opening / closing lever 8 has an engaging portion 81 that extends along the side surface of the opening / closing unit 3 and engages with the side portion of the main body unit 2 when in the locked position. The opening / closing sensor 9 detects that the tip surface 81a of the engaging portion 81 is in the locked position. Specifically, when the opening / closing lever 8 is in the locked position, the plunger 92 of the opening / closing sensor 9 protrudes toward the tip surface 81a of the engaging portion 81, which faces away from the top surface of the opening / closing unit 3. As a result, when the opening / closing lever 8 is in the locked position shown in the left diagram of FIG. 14, the plunger 92 of the opening / closing sensor 9 is pushed by the tip surface 81a of the engaging portion 81 in a direction away from the opening / closing unit 3 in the cutting direction Dc of the recording paper P.

[0082] As shown in the right diagram of Figure 14, when the opening / closing part 3 is closed relative to the main body part 2 and the engagement part 81 of the opening / closing lever 8 is in a semi-locked state where the engagement part 81 is not engaged with the shaft part 21 on the side of the main body part 2, the opening / closing sensor 9 detects that the opening / closing lever 8 is not in the locked position, i.e., is in the released position.

[0083] Furthermore, when the opening / closing lever 8 is rotated from the semi-locked state shown in the right diagram of Fig. 14 to the locked position shown in the left diagram of Fig. 14, the inclined surface 81s provided at the tip of the engaging portion 81 comes into contact with the tip of the plunger 92, pushing the plunger 92 into the main body portion 91. The inclined surface 81s at the tip of the engaging portion 81 is inclined with respect to the tip surface 81a so that the inclined surface 81s approaches the tip surface 81a as it moves away from the tip of the claw 81c.

[0084] Thereafter, when the opening / closing lever 8 is further rotated toward the locked position, the tip surface 81a of the engaging portion 81 comes into contact with the tip of the plunger 92, further pushing the plunger 92 into the main body 91. Then, when the opening / closing lever 8 rotates to the locked position shown in the left drawing of Fig. 14 and the claw 81c of the engaging portion 81 engages with the shaft portion 21, and the plunger 92 is further pushed into the main body 91, the opening / closing sensor 9 detects that the opening / closing lever 8 is in the locked position.

[0085] Therefore, in this embodiment, as in embodiment 1, a printing device 1 can be provided that can detect a semi-locked state in which the opening / closing unit 3, which is connected to the main body unit 2 in an openable / closable manner, is closed relative to the main body unit 2 and is not fixed to the main body unit 2.

[0086] The above describes in detail an embodiment of a printing device according to the present disclosure. However, the printing device according to the present disclosure is not limited to the above-described embodiment. Various modifications or substitutions may be applied to the above-described embodiment without departing from the scope of the present disclosure. For example, the open / close sensor is not limited to a sensor having a plunger, and a magnetic or optical open / close sensor may be used. Furthermore, the open / close lever does not need to have an unlocking lever. Furthermore, if the unlocking lever is not configured to separate the fixed blade from the movable blade in the direction opposite to the biasing direction of the biasing unit, the unlocking lever may be located at the rear end of the open / close unit in the paper transport direction. [Explanation of symbols]

[0087] 1 printing device, 3 opening / closing section, 31 rotating shaft, 3E1 first end, 3E2 second end, 4 printing section, 41 head unit (first part), 42 platen unit (second part), 5 cutting section, 51 fixed blade, 52 movable blade, 54 biasing section, 8 opening / closing lever, 81 engaging section, 81a tip surface, 84 lock release lever, 84b protrusion, 85 extension section, 9 opening / closing sensor, 92 plunger, Df transport direction, P recording paper.

Claims

1. a printing unit that prints on recording paper; a main body supporting a first portion of the printing unit; an opening / closing unit that is rotatably connected to the main body unit about a rotation axis that is perpendicular to the width direction of the recording paper and supports a second portion of the printing unit; an opening / closing lever provided at a second end of the opening / closing unit opposite to a first end connected to the main body unit, the opening / closing lever pivoting between an open position where the opening / closing unit can be opened and closed and a lock position where the opening / closing unit is fixed to the main body unit; an opening / closing sensor provided in the main body portion and configured to detect that the opening / closing lever is in the locked position; A printing device comprising:

2. the opening / closing sensor has a plunger that is pushed in by the opening / closing lever at the locked position to detect the locked position of the opening / closing lever; The printing device of claim 1 .

3. the opening / closing lever has an engaging portion that extends along a side surface of the opening / closing portion and engages with a side portion of the main body portion in the locked position, and an extension portion that extends along the side surface of the opening / closing portion to a position that is farther away from the opening / closing portion than the engaging portion in the locked position, the opening / closing sensor detects whether the opening / closing lever is in the locked position according to the position of a side surface of the extension portion facing the main body portion. The printing device of claim 1 .

4. the opening / closing lever has an engaging portion that extends along a side surface of the opening / closing portion and engages with a side portion of the main body portion when in the locked position; the open / close sensor detects that the tip surface of the engagement portion is in the locked position; The printing device of claim 1 .

5. The opening / closing lever has a lock release lever that extends toward the first end of the opening / closing portion when in the locked position. The printing device according to any one of claims 1 to 4.

6. When the opening / closing lever is in the locked position, at least a part of the unlocking lever protrudes from an end face of the opening / closing part opposite to the main body part. The printing device according to claim 5 .

7. a projection provided at a tip end of the unlocking lever, the projection projecting from an end face of the opening / closing part opposite to the main body part; The printing device according to claim 5 .

8. the lock release lever is disposed at a rear end of the opening / closing section in the recording paper transport direction; The printing device according to claim 5 .

9. a cutting unit that cuts the recording paper, the cutting section has a fixed blade supported by the opening / closing section, a movable blade disposed adjacent to the fixed blade in the conveyance direction of the recording paper and supported by the main body section, and a biasing section that biases the fixed blade toward the movable blade, When the opening / closing lever is in the locked position, the lock release lever is disposed at a stationary position closer to the urging direction of the urging unit than the fixed blade, and when the opening / closing lever is in the released position, the lock release lever is disposed at a paper release position that separates the fixed blade from the movable blade in a direction opposite to the urging direction of the urging unit. The printing device according to claim 5 .

10. a printing unit that prints on recording paper; a main body supporting a first portion of the printing unit; an opening / closing unit that is rotatably connected to the main body unit about a rotation axis that is perpendicular to the width direction of the recording paper and supports a second portion of the printing unit; an opening / closing lever provided at a second end of the opening / closing unit opposite to a first end connected to the main body unit, the opening / closing lever pivoting between an open position where the opening / closing unit can be opened and closed and a lock position where the opening / closing unit is fixed to the main body unit; Equipped with The opening / closing lever has an engaging portion that extends along a side surface of the opening / closing portion and engages with a side portion of the main body portion in the locked position, and an unlocking lever that extends toward the first end of the opening / closing portion in the locked position. Printing device.

11. the lock release lever is disposed at a rear end of the opening / closing section in the recording paper transport direction; The printing device of claim 10.

Images