Printer

Abstract

To provide a printer that can contribute to suppressing liquid from reaching a substrate.SOLUTION: A printer 1 comprises an enclosure 2, a display part 8 and a stopper 52. The enclosure 2 includes a bottom plate 31, an upper plate 41, and a first intermediate plate 64. The first intermediate plate 64 is positioned between the bottom plate 31 and the upper plate 41. In a vertical direction, a substrate 19 for controlling a thermal head 93 is arranged between the bottom plate 31 and the first intermediate plate 41. The display part 8 is connected to the upper plate 41 through a shaft, which rotates around the shaft. The stopper 52 is supported by the enclosure 2, below the upper plate 41 and is connected to the display part 8 through the first opening 411 formed in the upper plate 41, so as to gradually hold the attitude in the rotating direction of the display part 8. A first buffer wall 68 is formed on the upper surface of the first intermediate plate 64. The first buffer wall 68 is formed on a passage F for liquid that flows into the enclosure 2 through the first opening 411 to extend across the passage F. The first buffer wall 68 defines a first buffer space 69 where liquid is accumulated.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a printer. [Background technology]

[0002] The label creation device described in Patent Document 1 includes a housing and an upper cover unit. The housing contains a print head for printing on a medium and a board on which a CPU and the like are mounted. The upper cover unit has a liquid crystal display unit and is connected to the top surface of the housing via a rotating shaft. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-104697 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described label production device, if liquid is applied to the top surface of the housing, depending on the configuration around the rotation shaft, the liquid may seep into the housing from around the rotation shaft. If the liquid reaches the substrate, the electrical system of the label production device may fail.

[0005] It is an object of the present invention to provide a printer which helps to prevent liquid from reaching the substrate. [Means for solving the problem]

[0006] A printer according to one aspect of the present invention is a housing that houses a printing unit that performs printing, and includes a bottom plate that extends in a vertical direction, a top plate that extends in a vertical direction and is located higher than the bottom plate, and a first middle plate that extends in a vertical direction and is located between the bottom plate and the top plate in the vertical direction, and a board for controlling the printing unit is disposed between the bottom plate and the first middle plate in the vertical direction. the display unit is supported by the housing below the top plate and connected to the display unit via a first opening provided in the top plate, and a stopper is provided for gradually maintaining the position of the display unit in the rotational direction, and a first buffer wall is provided on the upper surface of the first middle plate, the first buffer wall being a wall that is provided in a flow path of liquid that enters the housing through the first opening in an upright position in which the direction from above to below is vertical, and that extends so as to intersect with the flow path and defines a first buffer space in which the liquid accumulates.

[0007] According to the above aspect, even if liquid enters the housing through the first opening in the upright position, the liquid accumulates in the first buffer space before reaching the substrate, thereby contributing to preventing the liquid from reaching the substrate.

[0008] In the printer, the housing may include a second middle plate provided between the bottom plate and the first middle plate in the vertical direction and extending so as to intersect with the vertical direction, the substrate is disposed between the bottom plate and the second middle plate in the vertical direction, the first middle plate is provided with a second opening at a downstream position of the flow path with respect to the first buffer wall, the first buffer wall is provided with a notch extending downward from an upper end of the first buffer wall to a position above the lower end of the first buffer wall and guiding the liquid to the second opening, and a second buffer wall may be provided on the upper surface of the second middle plate, the second buffer wall being provided in the flow path of the liquid flowing through the second opening in the upright position and extending so as to intersect with the flow path, and defining a second buffer space in which the liquid accumulates. In this case, even if the liquid overflows from the first buffer space in the upright position, the overflowing liquid accumulates in the second buffer space before reaching the substrate. Thus, the printer contributes to suppressing the liquid from reaching the substrate.

[0009] In the printer, the first buffer wall may be located on one side of a specific direction perpendicular to the up-down direction with respect to the first opening, the first middle plate may include a guide portion extending downward as it approaches the one side of the specific direction, the first buffer wall may extend upward from the one end of the guide portion in the specific direction, and the notch may be disposed at a position overlapping with the first opening in a direction perpendicular to the up-down direction and the specific direction as viewed from the specific direction. In this case, the printer contributes to suppressing an increase in size of the housing in the left-right direction.

[0010] In the printer, the first buffer wall may be located in one specific direction perpendicular to the up-down direction with respect to the first opening, the first middle plate may include a guide portion extending downward as it approaches the one specific direction, the first buffer wall may extend upward from the one end of the guide portion in the specific direction, and the notch may be disposed at a position offset from the first opening in a direction perpendicular to the up-down direction and the specific direction as viewed from the specific direction. In this case, liquid flowing through the guide portion is likely to strike the first buffer wall before flowing toward the notch. Thus, the printer contributes to making it easier to store liquid in the first buffer space.

[0011] In the printer, the first buffer wall may be located in one specific direction perpendicular to the up-down direction with respect to the first opening, the first middle plate may include a guide portion extending downward as it approaches the one specific direction, the first buffer wall may extend upward from the one end of the guide portion in the specific direction, and the guide portion may be provided with a pair of guide walls protruding upward from both ends of the guide portion in a direction perpendicular to the up-down direction and the specific direction. In this case, the liquid flowing through the guide portion flows toward the first buffer wall while its flow in the left-right direction is regulated by the pair of guide walls. Thus, the printer contributes to making it easier to collect liquid in the first buffer space.

[0012] In the printer, the housing includes a lower cover including the bottom plate and accommodating the substrate, the lower cover defining an accommodation space that accommodates a medium to be printed by the printing unit and opens upward, and an upper cover including the top plate and the first middle plate, the upper cover being connected to the lower cover so as to be movable between a closed position that covers the accommodation space from above and an open position that opens the accommodation space, and the first middle plate may be located between the bottom plate and the top plate in the vertical direction when the top cover is located in the closed position. In this case, the printer contributes to suppressing liquid from entering the accommodation space.

[0013] In the printer, the housing may include a discharge plate extending intersecting a front-rear direction perpendicular to the up-down direction and the left-right direction and having a discharge port for discharging the medium printed by the printing unit from the housing, and the discharge plate, the printing unit, the first buffer wall, and the stopper may be arranged in the front-rear direction in the order of the discharge plate, the printing unit, the first buffer wall, and the stopper. In this case, the printer contributes to preventing liquid from reaching the printing unit. [Brief description of the drawings]

[0014] [Figure 1] 1 is a perspective view of the printer 1 with the upper cover 4 placed in the closed position and the display unit 8 in a reclined position. [Diagram 2] 1 is a perspective view of the printer 1 with the upper cover 4 placed in the closed position and the display unit 8 in an upright position. [Diagram 3] 1 is a perspective view of the printer 1 with the upper cover 4 in the open position and the display unit 8 in a reclined position. [Figure 4] 4 is a cross-sectional view taken along line IV-IV of FIG. 1. [Diagram 5] FIG. 5 is an enlarged view of a region W1 shown in FIG. [Figure 6] FIG. 5 is an enlarged view of a region W2 shown in FIG. [Figure 7] 2 is an exploded perspective view of a display unit 8, a button cover 47, a tilt mechanism 5, and a roll cover 40. FIG. [Figure 8] 2 is an exploded perspective view of a roll cover 40, a cover base 6, and a sensor holder 7. FIG. [Figure 9] 9 is a cross-sectional view taken along line IX-IX in FIG. 4. [Figure 10] FIG. 2 is a cross-sectional perspective view of a tilt mechanism 5. [Figure 11] 9 is a schematic cross-sectional view taken along line IX-IX of FIG. 4 when a notch 682 is provided in the first buffer wall 68 instead of the notch 681. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] An embodiment of the present invention will be described below with reference to the drawings. The drawings are used to explain technical features that may be adopted by the present invention. The configuration of the device shown in the drawings is merely an illustrative example and is not intended to be limited to the present invention. In the following, the upper left, lower right, lower left, upper right, lower, and upper sides of FIG. 1 are respectively the left, right, front, rear, lower, and upper sides of the printer 1. In this embodiment, the term "plate" is a concept that includes not only a single plate, but also a member in which multiple plates are arranged side by side or overlapped to form a plate-like shape as a whole.

[0016] The printer 1 shown in FIG. 1 is a thermal printer that prints on a medium 10 using a thermal head 93, and is a mobile printer that can be carried by a user. In this embodiment, the medium 10 is thermal paper. In the following, the position of the printer 1 when a bottom plate 31 (see FIG. 1), which will be described later, extends horizontally is referred to as an "upright position." When the printer 1 is in a horizontal position, the direction from top to bottom is the vertical direction. A user uses the printer 1 in, for example, an upright position. In the following, unless otherwise specified, the configuration of the printer 1 will be described based on the state in which the printer 1 is in the upright position.

[0017] The external structure of the printer 1 will be described with reference to FIG. 1 and FIG. 2. The printer 1 includes a housing 2 and a display unit 8. The housing 2 is a rectangular parallelepiped box and houses a thermal head 93 (see FIG. 3). In this embodiment, the housing 2 is composed of a lower cover 3 and an upper cover 4. The lower cover 3 is a rectangular parallelepiped that opens upward (see FIG. 3), and includes a bottom plate 31, a left plate 32, a right plate 33, a front plate 34, and a rear plate 35. The bottom plate 31 is located at the lower end of the housing 2. The bottom plate 31 extends in the front-rear and left-right directions. The left plate 32 is located at the left end of the housing 2. The left plate 32 extends upward from the left end of the bottom plate 31, and extends in the front-rear direction from the front end to the rear end of the bottom plate 31. The right plate 33 is located at the right end of the housing 2. The right plate 33 extends upward from the right end of the bottom plate 31, and extends in the front-rear direction from the front end to the rear end of the bottom plate 31.

[0018] The front plate 34 is located at the front end of the housing 2. The front plate 34 extends in the left-right direction from the front end of the left plate 32 to the front end of the right plate 33, and also extends in the up-down direction from the front end of the bottom plate 31 to the upper ends of the left plate 32 and the right plate 33. A recess 341 is provided in the front plate 34. The recess 341 is recessed downward from the upper end of the front plate 34 and extends in the left-right direction. The rear plate 35 is located at the rear end of the housing 2. The rear plate 35 extends in the left-right direction from the rear end of the left plate 32 to the rear end of the right plate 33, and also extends in the up-down direction from the rear end of the bottom plate 31 to the upper ends of the left plate 32 and the right plate 33.

[0019] The upper cover 4 is disposed above the lower cover 3. The upper cover 4 is connected to the lower cover 3 so as to be movable between a closed position (see Figs. 1 and 2) and an open position (see Fig. 3). In the following, unless otherwise specified, the description will be based on the state in which the upper cover 4 is located in the closed position (see Figs. 1 and 2).

[0020] The upper cover 4 is a rectangular parallelepiped that opens downward (see FIG. 3), and includes an upper plate 41, a left plate 42, a right plate 43, a front plate 44, and a rear plate 45. The upper plate 41 is located at the upper end of the housing 2. The upper plate 41 extends in the front-rear and left-right directions. The upper plate 41 is provided with a first opening 411. The first opening 411 is located at the center of the upper plate 41 in the front-rear and left-right directions. The first opening 411 has a rectangular shape in a plan view. The length of the first opening 411 in the left-right direction and the front-rear direction is about 1 / 4 of the length of the upper cover 4 in the left-right direction. The upper plate 41 is composed of upper plates 49 and 61 (see FIG. 2). The upper plate 49 is a portion of the upper plate 41 that is forward of the first opening 411. The upper plate 61 is a portion of the upper plate 41 that is rearward of the first opening 411, and is located slightly below the upper plate 49. The upper plate 49 is provided with an operation button 18. A user operates the operation buttons 18 to input various instructions to the printer 1 .

[0021] The left plate 42 is located at the left end of the housing 2. The left plate 42 extends downward from the left end of the upper plate 41, and also extends in the front-to-rear direction from the front end to the rear end of the upper plate 41. The right plate 43 is located at the right end of the housing 2. The right plate 43 extends downward from the right end of the upper plate 41, and also extends in the front-to-rear direction from the front end to the rear end of the upper plate 41.

[0022] The front plate 44 is located at the front end of the housing 2. The front plate 44 extends in the left-right direction from the front end of the left plate 42 to the front end of the right plate 43, and also extends in the up-down direction from the front end of the upper plate 41 to the lower ends of the left plate 42 and right plate 43. A recess 441 is provided in the front plate 44. The recess 441 is recessed upward from the lower end of the front plate 44 and extends in the left-right direction.

[0023] The rear plate 45 is located at the rear end of the housing 2. The rear plate 45 extends in the left-right direction from the rear end of the left plate 42 to the rear end of the right plate 43, and also extends in the up-down direction from the rear end of the upper plate 41 to the lower ends of the left plate 42 and the right plate 43. The lower end of the rear plate 45 is rotatably connected to the upper end of the rear plate 35 via a shaft 20 (see FIG. 3). The shaft 20 extends in the left-right direction. The upper cover 4 rotates around the shaft 20 to move between a closed position (see FIGS. 1 and 2) and an open position (see FIG. 3).

[0024] The front panels 34 and 44 constitute the front panel 21. The front panel 21 is located at the front end of the housing 2. The front panel 21 extends in the up-down and left-right directions. The front panel 21 is provided with an outlet 211. The outlet 211 is an opening surrounded by a pair of recesses 341 and 441. The outlet 211 discharges the medium 10 printed by the thermal head 93 forward from the housing 2.

[0025] The display unit 8 is disposed on the upper plate 61. The display unit 8 is connected to the upper plate 41 so as to be switchable between a reclined position (see FIG. 1) and an upright position (see FIG. 2). The connection mechanism between the display unit 8 and the upper plate 41 will be described in detail later. The user switches the position of the display unit 8 as appropriate depending on the usage situation of the printer 1. The following description will be given based on the state of the display unit 8 in the reclined position (see FIG. 1).

[0026] The display unit 8 includes a display cover 81, a touch panel display 82, and a shaft cover 85 (see FIG. 7). The display cover 81 has a rectangular shape in a plan view, and includes a lower cover 83 and an upper cover 84. The lower cover 83 has a box shape and opens upward. The upper cover 84 has a plate shape and is attached to the lower cover 83 from above. The vertical length of the display cover 81 is smaller than both the front-rear length of the display cover 81 and the left-right length of the display cover 81. The left-right length of the display cover 81 is approximately the same as the left-right length of the upper cover 4. The front-rear length of the display cover 81 is approximately the same as the front-rear length of the second plate. An opening 811 is provided in the upper cover 84. The opening 811 has a rectangular shape in a plan view.

[0027] The touch panel display 82 is housed in the display cover 81 and is exposed upward from an opening 811. A user touches the touch panel display 82 to input various instructions to the printer 1. The touch panel display 82 displays various information in response to the user's instructions. The shaft cover 85 will be described in detail later.

[0028] The internal structure of the printer 1 will be described with reference to Figures 3 to 5. As shown in Figures 3 and 4, the lower cover 3 includes a storage plate 36 and defines a roll storage space 30A. The storage plate 36 extends in an arc shape that bulges downward as it moves forward from near the upper end of the rear plate 35, and then extends in a straight line to near the rear of the recess 341. The storage plate 36 extends in the left-right direction from the left plate 32 to the right plate 33.

[0029] The roll storage space 30A is a space surrounded by the left plate 32, the right plate 33, and the storage plate 36, and opens upward. The roll storage space 30A stores a medium roll 10A (see FIG. 4). The medium roll 10A is a roll around which the medium 10 to be printed by the thermal head 93 is wound. The roll storage space 30A is covered from above by the upper cover 4 when the upper cover 4 is placed in the closed position (see FIG. 1, FIG. 2, FIG. 4). The roll storage space 30A is open upward when the upper cover 4 is placed in the open position (see FIG. 3). The user installs the medium roll 10A in the roll storage space 30A or removes the medium roll 10A from the roll storage space 30A with the upper cover 4 placed in the open position (see FIG. 3). The user performs printing with the printer 1 with the upper cover 4 placed in the closed position (see FIG. 1, FIG. 2, FIG. 4).

[0030] The printer 1 includes a pair of rails 12A, 12B (see FIG. 4), a roll support mechanism 13, a platen roller 11, a head unit 9, and a substrate 19 (see FIG. 4). As shown in FIG. 4, the pair of rails 12A, 12B are disposed at the front lower portion of the roll storage space 30A. The pair of rails 12A, 12B fit into openings 36A, 36B provided in a storage plate 36 in the left-right direction, respectively. The rail 12B is disposed diagonally below and behind the rail 12A. The pair of rails 12A, 12B each extend in the left-right direction.

[0031] As shown in FIG. 3, the roll support mechanism 13 includes a pair of adjuster guides 131, 132 and a pair of medium disks 133, 134. The adjuster guide 131 has a plate shape and extends obliquely upward and rearward from the rail 12A (see FIG. 4). The adjuster guide 131 is connected to the rail 12A and moves left and right along the rail 12A in an area to the left of the center of the roll accommodating space 30A in the left and right direction. The medium disk 133 is disposed at the rear end of the adjuster guide 131 and is fixed to the right surface of the adjuster guide 131. The medium disk 133 is provided with a protrusion 135. The protrusion 135 protrudes rightward from the right surface of the medium disk 133.

[0032] The adjuster guide 132 has a plate shape and extends obliquely upward and rearward from the rail 12B (see FIG. 4). The adjuster guide 132 is connected to the rail 12B and moves left and right along the rail 12B in an area to the right of the center of the roll accommodating space 30A in the left and right direction. The medium disk 134 is disposed at the rear end of the adjuster guide 132 and is fixed to the left surface of the adjuster guide 132. The medium disk 134 is provided with a protrusion (not shown). The protrusion protrudes leftward from the left surface of the medium disk 134.

[0033] The pair of medium disks 133, 134 face each other in the left-right direction. The pair of adjuster guides 131, 132 are biased by a spring (not shown) so as to approach each other in the left-right direction.

[0034] With the paper core of media roll 10A extending in the left-right direction, media roll 10A is disposed between a pair of media disks 133, 134 in the left-right direction. Protrusion 135 fits into the paper core of media roll 10A from the left, and the protrusion of media disk 134 fits into the paper core of media roll 10A from the right. The roll support mechanism 13 rotatably supports media roll 10A from the left-right direction by the pair of media disks 133, 134.

[0035] 3 and 5, the head unit 9 is disposed near the rear of the recess 441. The head unit 9 includes a fixed plate 91, a heat sink 92 (see FIG. 5), a thermal head 93, and head covers 94, 95. The fixed plate 91 extends in the front-rear direction from near the rear of the recess 441 to near the front of a sensor holder 7 (described below) and also extends in the left-right direction. Both left and right ends of the fixed plate 91 extend downward. The rear end of the fixed plate 91 is rotatably supported by the upper cover 4 (more specifically, the left plate 72 and right plate 73 of the sensor holder 7 (described below)).

[0036] As shown in FIG. 5, an elastic body 99 is disposed between the front end of the fixed plate 91 and the front end of an extension portion 642 described below. The elastic body 99 is a compression coil spring and extends in the up-down direction. The front end of the fixed plate 91 is urged downward by the elastic body 99. The heat sink 92 is disposed in front of the fixed plate 91 and fixed to the lower surface of the fixed plate 91. The heat sink 92 has a plate shape and extends in the front-rear and left-right directions. The front end of the heat sink 92 is disposed behind the front end of the fixed plate 91. The heat sink 92 dissipates heat from the thermal head 93 and improves the thermal responsiveness of the thermal head 93. This improves the printing quality of the thermal head 93.

[0037] The thermal head 93 contacts the heat sink 92 and is fixed to the lower surface of the heat sink 92. The thermal head 93 is plate-shaped and extends in the front-rear and left-right directions. The front end of the thermal head 93 is disposed rearward of the front end of the heat sink 92. The thermal head 93 includes a plurality of heating elements (not shown). The plurality of heating elements are disposed on the lower surface of the thermal head 93 and aligned in the left-right direction. The thermal head 93 selectively causes the plurality of heating elements to generate heat to perform printing on the medium 10.

[0038] The head cover 94 is disposed at the front end of the fixed plate 91. The lower end of the head cover 94 defines a portion of the transport path of the medium 10 near the downstream of the thermal head 93. The head cover 94 includes a fixed portion 941 and a support portion 942. The fixed portion 941 is fixed to the lower surface of the fixed plate 91 and extends downward from the fixed plate 91. The support portion 942 extends rearward from the lower end of the fixed portion 941 to near the front of the thermal head 93. The support portion 942 contacts the lower surface of the heat sink 92. That is, the head cover 94 is connected to the thermal head 93 only through the heat sink 92, i.e., only one component. Therefore, the position of the thermal head 93 relative to the transport path of the medium 10 is less likely to vary.

[0039] The head cover 95 is disposed behind the thermal head 93. The lower end of the head cover 95 defines a portion of the transport path of the medium 10 near the upstream of the thermal head 93. The head cover 95 includes a fixed portion 951 and a support portion 952. The fixed portion 951 is fixed to the lower surface of the fixed plate 91 and extends downward from the fixed plate 91. The support portion 952 extends forward from the lower end of the fixed portion 951 to the rear end of the thermal head 93. The support portion 952 contacts the lower surface of the thermal head 93. That is, the head cover 95 directly supports the thermal head 93 without any other member. Therefore, the position of the thermal head 93 with respect to the transport path of the medium 10 is less likely to vary.

[0040] As shown in FIG. 3 and FIG. 4, the platen roller 11 is disposed near the rear of the recess 341 and rotatably supported by the lower cover 3. The rotation axis of the platen roller 11 extends in the left-right direction. The platen roller 11 rotates by being driven by a conveying motor (not shown). As shown in FIG. 4, when the upper cover 4 is disposed in the closed position, the front ends of the left and right ends of the fixing plate 91 engage with the left and right ends of the platen roller 11. In this case, the platen roller 11 is disposed below the thermal head 93 and faces the thermal head 93 in the up-down direction. The thermal head 93 is pressed against the platen roller 11 by an elastic body 99. The platen roller 11 sandwiches the medium 10 between the thermal head 93 and the platen roller 11. In this state, the platen roller 11 conveys the medium 10 forward by rotating in the counterclockwise direction as viewed from the right side. As shown in FIG. 3, when the upper cover 4 is disposed in the open position, the front ends of the left and right ends of the fixing plate 91 are released from engagement with the left and right ends of the platen roller 11. In this case, the thermal head 93 is disposed at a position above and away from the platen roller 11 .

[0041] As shown in FIG. 4, the substrate 19 is accommodated in the lower cover 3, specifically, in the substrate accommodating space 30B. The substrate accommodating space 30B is defined by the lower cover 3. The substrate accommodating space 30B is a space surrounded by the bottom plate 31, the left plate 32, the right plate 33, the front plate 34, the rear plate 35, and the accommodating plate 36. Therefore, the substrate 19 is disposed between the bottom plate 31 and the accommodating plate 36 in the vertical direction. Therefore, the substrate 19 is located between the bottom plate 31 and a first middle plate 64 described later in the vertical direction. In detail, the substrate 19 is located between the bottom plate 31 and a second middle plate 71 described later in the vertical direction.

[0042] The board 19 extends in the front-rear and left-right directions. A CPU, flash memory, RAM, etc. are mounted on the board 19. The board 19 is electrically connected to each of the thermal head 93, the transport motor (not shown), and the touch panel display 82 via a harness (not shown). The board 19 acquires input information from the touch panel display 82 or the operation buttons 18. The board 19 controls the heat generation of the thermal head 93, the rotation of the transport motor, and the display of the touch panel display 82 based on the acquired input information.

[0043] A printing operation by the printer 1 will be described with reference to FIG. 4. The user operates the touch panel display 82 or the operation button 18 to input a print instruction to the printer 1. In this case, the printer 1 prints on the medium 10 by the thermal head 93 while transporting the medium 10 forward by the platen roller 11. In detail, when the substrate 19 receives a print instruction via the touch panel display 82 or the operation button 18, it drives the transport motor and rotates the platen roller 11 in a counterclockwise direction as viewed from the right side. This causes the medium 10 to be drawn out from the medium roll 10A. The substrate 19 controls the thermal head 93 to selectively heat the multiple heating elements. The portions of the medium 10 heated by the heating elements develop color. The substrate 19 repeats the transport of a predetermined amount of the medium 10 by the platen roller 11 and the selective heating by the thermal head 93. This causes printing on the medium 10. The printed medium 10 is discharged from the housing 2 through the discharge port 211.

[0044] The detailed structure of the upper cover 4 will be described with reference to FIG. 4 and FIG. 6 to FIG. 9. As shown in FIG. 7 and FIG. 8, the upper cover 4 includes the roll cover 40, the button cover 47, the cover base 6, and the sensor holder 7. As shown in FIG. 7, the roll cover 40 includes the left plate 42, the right plate 43, the rear plate 45, and the connection plate 46. The connection plate 46 has a rectangular shape in a plan view, and is disposed below the upper plate 49. The connection plate 46 extends in the left-right direction from the left plate 42 to the right plate 43. The connection plate 46 extends in the front-rear direction from the position of the front end of the upper plate 41 to the position of the center of the upper plate 41 in the left-right direction. For this reason, an opening 401 is provided in the roll cover 40. The opening 401 is an area surrounded by the rear end of the connection plate 46, the upper end of the rear plate 45, the upper end of the left plate 42, and the upper end of the right plate 43. A recess 461 is provided in the rear of the connection plate 46. The recess 461 is located in the center of the connection plate 46 in the left-right direction. The recess 461 has a rectangular shape in a plan view, and is recessed downward from the upper surface of the connection plate 46 .

[0045] The button cover 47 includes an upper plate 49 and a front plate 44. The button cover 47 is attached to the front part of the roll cover 40 from above. A support plate 48 is arranged between the upper plate 49 and the connecting plate 46 in the up-down direction. The support plate 48 is fixed to the upper surface of the connecting plate 46. The support plate 48 has a rectangular shape in a plan view, and extends in the left-right direction from the left plate 42 to the right plate 43, and also extends in the front-rear direction from the position of the front end of the upper plate 49 to the position of the rear end of the upper plate 49. The support plate 48 supports a board on which the operation buttons 18 are mounted. An opening 481 is provided in the support plate 48 at a position that overlaps with the recess 461 in a plan view.

[0046] As shown in Fig. 8, the cover base 6 is attached to the inside of the roll cover 40. The cover base 6 includes an upper plate 61, a left plate 62, a right plate 63, and a first middle plate 64. The upper plate 61 is disposed in the opening 401. The left plate 62 is located to the right of the left plate 42. The left plate 62 extends downward from the left end of the upper plate 61 and extends in the front-rear direction from the front end to the rear end of the upper plate 61. The right plate 63 is located to the left of the right plate 43. The right plate 63 extends downward from the right end of the upper plate 61 and extends in the front-rear direction from the front end to the rear end of the upper plate 61.

[0047] As shown in Figs. 4 and 8, the first middle plate 64 extends downward from the front end of the upper plate 61 toward the front, and then extends forward to the rear vicinity of the recess 341. The first middle plate 64 extends in the left-right direction from the left end position of the upper plate 61 to the right end position of the upper plate 61. The first middle plate 64 is located between the bottom plate 31 and the upper plate 41 in the up-down direction. The first middle plate 64 includes a guide portion 641 and an extension portion 642. The guide portion 641 is a portion of the first middle plate 64 that extends downward from the front end of the upper plate 61 toward the front. The extension portion 642 is a portion of the first middle plate 64 that extends forward from the front end of the guide portion 641 to the rear vicinity of the recess 441.

[0048] A pair of guide walls 66, 67 and a first buffer wall 68 are provided on the upper surface of the guide portion 641. The pair of guide walls 66, 67 protrude upward from the left end and the right end of the guide portion 641, respectively. The pair of guide walls 66, 67 each extend from the rear end to the front end of the guide portion 641. As shown in FIG. 6 and FIG. 8, the first buffer wall 68 extends upward from the front end of the guide portion 641 and extends in the left-right direction from the front end of the guide wall 66 to the front end of the guide wall 67. Both left and right ends of the first buffer wall 68 each extend rearward and connect to the guide portion 641. The first buffer wall 68 is located forward of the first opening 411.

[0049] The first intermediate plate 64, the pair of guide walls 66, 67, and the first buffer wall 68 define a first buffer space 69. That is, the first buffer space 69 is a space surrounded by the first intermediate plate 64, the pair of guide walls 66, 67, and the first buffer wall 68. When liquid enters the housing 2 through the first opening 411, the first buffer space 69 stores the liquid that has entered.

[0050] A cutout 681 is provided in the first buffer wall 68. The cutout 681 extends downward from the upper end of the first buffer wall 68 to a position above the lower end of the first buffer wall 68. As shown in FIG. 9, the cutout 681 is disposed at a position overlapping with the first opening 411 in the left-right direction when viewed from the front. In this embodiment, the left end of the cutout 681 is disposed to the right of the left end of the first opening 411, and the right end of the cutout 681 is disposed to the left of the right end of the first opening 411. The cutout 681 guides the liquid to the second opening 65 (see FIGS. 6 and 8).

[0051] As shown in FIG. 6 and FIG. 8, the second opening 65 is provided in the extension portion 642. The second opening 65 is located near the front of the first buffer wall 68. The second opening 65 is arranged at a position overlapping the notch 681 in the left-right direction when viewed from the front. In this embodiment, the position of the left end of the second opening 65 coincides with the position of the left end of the notch 681 in the left-right direction, and the position of the right end of the second opening 65 coincides with the position of the right end of the notch 681 in the left-right direction. A peripheral wall 651 is provided on the periphery of the second opening 65. The peripheral wall 651 extends upward from the extension portion 642 and surrounds the second opening 65 from the left, front, and right.

[0052] As shown in FIG. 8, the sensor holder 7 is disposed below the extending portion 642 and fixed to the extending portion 642. The sensor holder 7 includes a second middle plate 71, a left plate 72, and a right plate 73. The second middle plate 71 is disposed between the bottom plate 31 and the first middle plate 64 in the up-down direction. The second middle plate 71 has a rectangular shape in a plan view and extends in the front-rear and left-right directions. The left end of the second middle plate 71 is disposed near the right side of the left plate 62. The right end of the second middle plate 71 is disposed near the left side of the right plate 63. The rear end of the second middle plate 71 is disposed near the front end of the guide portion 641 in the front-rear direction. The front end of the second middle plate 71 is disposed near the rear end of the thermal head 93. A sensor window 711 (see FIG. 3) is provided at the front end of the second middle plate 71. The sensor window 711 faces the transport path of the medium 10 from above. A media sensor (not shown) is fixed to the position of the sensor window 711 on the upper surface of the second middle plate 71. This allows the sensor holder 7 to hold the media sensor. The media sensor is disposed behind the thermal head 39, and detects the presence or absence of the medium 10 being transported toward the thermal head 39.

[0053] The left plate 72 extends upward from the left end of the second middle plate 71, and extends in the front-rear direction from the front end to the rear end of the second middle plate 71. The right plate 73 extends upward from the right end of the second middle plate 71, and extends in the front-rear direction from the front end to the rear end of the second middle plate 71.

[0054] Second buffer walls 74, 75 and a pair of guide walls 76, 77 are provided on the upper surface of the second middle plate 71. The second buffer wall 74 extends upward from the rear end of the second middle plate 71 to the upper ends of the left plate 72 and the right plate 73, and also extends in the left-right direction from the rear end of the left plate 72 to the rear end of the right plate 73. The second buffer wall 75 is disposed in the center of the sensor holder 7 in the left-right direction. The second buffer wall 75 extends upward from the lower end of the second buffer wall 74 toward the front, and also extends in the left-right direction. The left-right length of the second buffer wall 75 is about 1 / 3 of the left-right length of the sensor holder 7. The up-down length of the second buffer wall 75 is about the same as the up-down length of the second buffer wall 74.

[0055] The guide wall 76 extends in the left-right direction from the left end of the second buffer wall 75 to the second buffer wall 74, and also extends in the up-down direction from the second middle plate 71 to the upper ends of the second buffer wall 74 and the second buffer wall 75. The guide wall 77 extends in the left-right direction from the right end of the second buffer wall 75 to the second buffer wall 74, and also extends in the up-down direction from the second middle plate 71 to the upper ends of the second buffer wall 74 and the second buffer wall 75.

[0056] The second buffer walls 74, 75 and the pair of guide walls 76, 77 define a second buffer space 78. That is, the second buffer space 78 is a space surrounded by the second buffer walls 74, 75 and the pair of guide walls 76, 77. The second buffer space 78 is formed directly below the second opening 65. When liquid enters the housing 2 through the first opening 411, the second buffer space 78 collects liquid overflowing from the first buffer space 69.

[0057] The connecting mechanism between the display unit 8 and the upper cover 4 will be described with reference to Figures 7 and 10. As shown in Figure 7, a pair of protrusions 86, 87 is provided at the front end of the lower cover 83. The pair of protrusions 86, 87 are disposed at the left and right ends of the lower cover 83, respectively, and protrude forward from the lower cover 83. The pair of protrusions 86, 87 are provided with shafts 88, 89, respectively. The shaft 88 protrudes to the right from the protrusion 86. The shaft 89 protrudes to the left from the protrusion 87.

[0058] The shaft cover 85 extends in the left-right direction from the protruding portion 86 to the protruding portion 87. Both the left and right ends of the shaft cover 85 have a U-shape that opens downward in a side view. The left and right ends of the shaft cover 85 are attached to the shafts 88 and 89, respectively. As a result, the shaft cover 85 supports the display cover 81 so that the display cover 81 can rotate around the shafts 88 and 89. With the shaft cover 85 supporting the display cover 81, the lower end of the shaft cover 85 is fixed to the upper plate 49. As a result, the display unit 8 is connected to the upper plate 49 via the shafts 88 and 89, and rotates around the shafts 88 and 89 relative to the upper cover 4.

[0059] The printer 1 has a tilt mechanism 5. The tilt mechanism 5 has an engaged portion 51, a stopper 52, and an elastic body 53. The engaged portion 51 is provided on the display cover 81. In this embodiment, the engaged portion 51 protrudes downward from the lower end of the lower cover 83. The engaged portion 51 is disposed in the center of the lower cover 83 in the left-right direction.

[0060] Fig. 10 is a cross-section of the periphery of the tilt mechanism 5 cut by a plane that passes through the center of the elastic body 53 and is perpendicular to the left-right direction, as viewed from the left and diagonally above the front. As shown in Fig. 10, the engaged portion 51 is disposed in the first opening 411. A plurality of (three in this embodiment) step portions 511, 512, 513 are formed on the lower surface of the engaged portion 51. The multiple step portions 511, 512, 513 are arranged in this order from the front to the rear. The angles of the bottom surfaces of the multiple step portions 511, 512, 513 with respect to the front-rear direction are different from one another.

[0061] As shown in Figs. 7 and 10, the stopper 52 is plate-shaped and extends in the front-rear direction. A shaft 521 is formed at the front end of the stopper 52. The shaft 521 extends in the left-right direction and is rotatably supported by the left and right side walls of the recess 461. A hook 462 extending upward from the bottom wall of the recess 461 engages with the center of the stopper 52. Therefore, the stopper 52 is supported by the housing 2 below the upper plate 41. In this embodiment, the front plate 21, the thermal head 93, the first buffer wall 68, and the stopper 52 are arranged in this order from front to rear (see Fig. 4).

[0062] An engagement portion 522 is formed at the rear end of the stopper 52. The engagement portion 522 is disposed in the first opening 411, and swings up and down around a shaft 521. The engagement portion 522 engages with any one of the multiple step portions 511, 512, 513. Fig. 10 shows a state in which the engagement portion 522 engages with the step portion 511.

[0063] The elastic body 53 is disposed between the connection plate 46 and the stopper 52 in the vertical direction. The elastic body 53 is supported by the upper surface of the connection plate 46. The elastic body 53 is a compression coil spring, and extends in the vertical direction. The elastic body 53 biases upward a portion of the stopper 52 between the shaft 521 and the engagement portion 522 in the front-rear direction. In this case, the engagement portion 522 is pressed from below against a bottom surface of any one of the multiple step portions 511, 512, 513. As a result, the stopper 52 is connected to the display unit 8 via the first opening 411.

[0064] For example, a case will be described in which the display unit 8 rotates a predetermined amount around the shafts 88, 89 in the counterclockwise direction as viewed from the left side from a state in which the engagement portion 522 engages with the step portion 511 (see FIG. 10). In this case, the step portion 511 presses the engagement portion 522 downward. The engagement portion 522 swings downward around the shaft 521 against the biasing force of the elastic body 53. As a result, the engagement portion 522 climbs over the step portion 511 and engages with the step portion 512. The elastic body 53 biases the engagement portion 522 against the step portion 512. In this way, the stopper 52 holds the position of the display unit 8 in the rotational direction R in a step-by-step manner.

[0065] 4 and 6, the flow path F and the main effects of the above embodiment will be described. In the printer 1, the tilt mechanism 5 is provided via the first opening 411. Unlike a relatively small gap such as a fit tolerance between a pair of members, the first opening 411 is relatively large enough that when liquid is splashed onto the housing 2 from above, the splashed liquid will enter the housing 2. In conventional printers, if there is no relatively large opening in the upper plate 41, there is no idea of ​​providing the first buffer space 69 and the second buffer space 78 in the printer.

[0066] When liquid enters the housing 2 through the first opening 411 from the gap G between the shaft cover 85 and the upper plate 49, the liquid that has entered the housing 2 flows along the flow path F. In the above embodiment, if the first buffer space 69 and the second buffer space 78 do not exist, the liquid that has entered the housing 2 through the first opening 411 is likely to enter the roll accommodating space 30A through the gaps between the members inside the housing 2 and is likely to reach the medium roll 10A. Furthermore, the liquid that has entered the housing 2 through the first opening 411 is likely to reach the thermal head 93. The liquid that has entered the roll accommodating space 30A is likely to enter the substrate accommodating space 30B through the gaps between the members inside the housing 2, particularly the openings 36A and 36B, and is likely to reach the substrate 19.

[0067] In the flow path F, the liquid that has entered the housing 2 flows downward from the first opening 411 along the guide portion 641 as it moves forward. In the above embodiment, the first buffer wall 68 is provided in the flow path F of the liquid that enters the housing 2 through the first opening 411, and extends so as to intersect with the flow path F of the liquid that enters the housing 2 through the first opening 411. For this reason, the liquid that flows along the guide portion 641 hits the first buffer wall 68. As a result, even if the liquid enters the housing 2 through the first opening 411, the liquid that has entered accumulates in the first buffer space 69 before reaching the substrate 19. Therefore, the printer 1 contributes to suppressing the liquid from reaching the substrate 19.

[0068] In the above embodiment, the pair of guide walls 66, 67 are provided in the guide portion 641. Therefore, in the flow path F, the liquid flowing in the guide portion 641 flows toward the first buffer wall 68 while the flow in the left-right direction is regulated by the pair of guide walls 66, 67. Therefore, the printer 1 contributes to making it easier for the liquid to accumulate in the first buffer space 69.

[0069] In the above embodiment, the lower cover 3 defines the roll accommodating space 30A, and the upper cover 4 includes the first middle plate 64. For this reason, in the flow path F, liquid that has entered the housing 2 accumulates in the first buffer space 69 before entering the roll accommodating space 30A. Therefore, the printer 1 contributes to preventing liquid from entering the roll accommodating space 30A, and contributes to preventing the medium 10 from being soiled by liquid.

[0070] In the above embodiment, the front plate 21, the thermal head 93, the first buffer wall 68, and the stopper 52 are arranged from front to rear in the order of the front plate 21, the thermal head 93, the first buffer wall 68, and the stopper 52. Therefore, in the flow path F, liquid that has entered the housing 2 accumulates in the first buffer space 69 before reaching the thermal head 93. Therefore, the printer 1 contributes to preventing the liquid from reaching the thermal head 93, and contributes to preventing electrical failure of the thermal head 93 caused by the liquid.

[0071] When the amount of liquid accumulated in the first buffer space 69 exceeds the capacity of the first buffer space 69, the liquid flows forward from the notch 681. In the above embodiment, the second opening 65 is located downstream of the flow path F with respect to the first buffer wall 68. Therefore, in the flow path F, the liquid flowing from the notch 681 is guided to the second opening 65 by the peripheral wall 651, and flows down through the second opening 65 below the extension part 642. In the above embodiment, the second buffer walls 74, 75 are provided in the flow path F of the liquid flowing through the second opening 65, and extend so as to intersect with the flow path F of the liquid flowing through the second opening 65. Therefore, the liquid that flows down hits the second buffer walls 74, 75. As a result, even if the liquid overflows from the first buffer space 69, the overflowing liquid accumulates in the second buffer space 78 before reaching the substrate 19. Therefore, the printer 1 contributes to suppressing the liquid from reaching the substrate 19.

[0072] In the above embodiment, the notch 681 is disposed at a position overlapping in the left-right direction with the first opening 411 when viewed from the front. This contributes to preventing the printer 1 from becoming large in size in the left-right direction.

[0073] In the above embodiment, the thermal head 93 corresponds to the "printing section" of the present invention. The bottom plate 31 corresponds to the "bottom plate" of the present invention. The top plate 41 corresponds to the "top plate" of the present invention. The first middle plate 64 corresponds to the "first middle plate" of the present invention. The substrate 19 corresponds to the "substrate" of the present invention. The housing 2 corresponds to the "housing" of the present invention. The axes 88, 89 correspond to the "axis" of the present invention. The display section 8 corresponds to the "display section" of the present invention. The first opening 411 corresponds to the "first opening" of the present invention. The stopper 52 corresponds to the "stopper" of the present invention. The flow path F corresponds to the "flow path" of the present invention. The first buffer space 69 corresponds to the "first buffer space" of the present invention. The first buffer wall 68 corresponds to the "first buffer wall" of the present invention.

[0074] The second middle plate 71 corresponds to the "second middle plate" of the present invention. The second opening 65 corresponds to the "second opening" of the present invention. The notch 681 corresponds to the "notch" of the present invention. The second buffer space 78 corresponds to the "second buffer space" of the present invention. The second buffer walls 74, 75 correspond to the "second buffer wall" of the present invention. The front-to-rear direction of the printer 1 corresponds to the "specific direction" of the present invention. The guide portion 641 corresponds to the "guide portion" of the present invention. The pair of guide walls 66, 67 correspond to the "pair of guide walls" of the present invention. The roll storage space 30A corresponds to the "storage space" of the present invention. The lower cover 3 corresponds to the "lower cover" of the present invention. The upper cover 4 corresponds to the "upper cover" of the present invention. The front plate 21 corresponds to the "discharge plate" of the present invention. The discharge port 211 corresponds to the "discharge port" of the present invention.

[0075] The present invention may be modified in various ways from the above embodiment. For example, as shown in FIG. 11, the first buffer wall 68 may be provided with a notch 682 instead of the notch 681. In FIG. 11, in order to explain the positional relationship between the notch 682 and the first opening 411, illustration of members other than the upper plate 41 and the first buffer wall 68 is omitted. The notch 682 extends downward from the upper end of the first buffer wall 68 to a position above the lower end of the first buffer wall 68. The notch 682 is disposed at a position shifted from the first opening 411 in the left-right direction when viewed from the front-rear direction. For example, the notch 682 is disposed to the left of the first opening 411. In detail, the right end of the notch 682 is disposed to the left of the left end of the first opening 411. In this case, the second opening 65 may be disposed at a position overlapping with the notch 682 in the left-right direction when viewed from the front. The position of the second buffer space 78 may also be changed so as to be disposed directly below the second opening 65.

[0076] When the notch 682 is disposed at a position offset from the first opening 411 in the left-right direction when viewed from the front-rear direction, the liquid flowing through the guiding portion 641 is likely to strike the first buffer wall 68 before flowing toward the notch 682. Thus, the printer 1 contributes to making it easier for the liquid to accumulate in the first buffer space 69.

[0077] Other modified examples will be described below. For example, in the above embodiment, the display unit 8 includes the touch panel display 82. However, the display unit 8 may include a display without a touch panel function.

[0078] The order in which the front plate 21, the thermal head 93, the first buffer wall 68, and the stopper 52 are arranged from the front to the rear is not limited to that in the above embodiment. For example, the front plate 21, the thermal head 93, the first buffer wall 68, and the stopper 52 may be arranged from the front to the rear in this order: front plate 21, the thermal head 93, the stopper 52, the first buffer wall 68. In this case, for example, the guide portion 641 may extend downward from directly below the first opening 411 toward the rear. The first buffer wall 68 may be disposed directly below the stopper 52.

[0079] In the above embodiment, the first buffer wall 68 may have a recessed shape similar to the second buffer walls 74 and 75. In this case, for example, the first buffer wall 68 may be disposed directly below the stopper 52, and the guide portion 641 may be omitted. The pair of guide walls 66 and 67 may be omitted. One of the first buffer wall 68 and the second buffer walls 74 and 75 may be omitted. For example, when the first buffer wall 68 is omitted, the second buffer walls 74 and 75 correspond to the "first buffer wall" of the present invention. For example, when the second buffer walls 74 and 75 are omitted, the second opening 65 and the notch 681 may be omitted. That is, the upper end of the first buffer wall 68 may extend linearly in the left-right direction.

[0080] One or both of the first middle plate 64 and the second middle plate 71 may be included in the lower cover 3. For example, one or both of the first middle plate 64 and the second middle plate 71 may be disposed between the bottom plate 31 and the storage plate 36 in the vertical direction.

[0081] In the above embodiment, the display cover 81 is connected to the center of the upper plate 41 in the front-rear direction. In contrast, for example, the display cover 81 may be connected to the rear end of the upper plate 41 or to the front end of the upper plate 41. For example, when the display cover 81 is connected to the rear end of the upper plate 41, the shafts 88 and 89 may be provided at the rear end of the display cover 81. In this case, the opening 811 may be provided in the lower surface of the lower cover 83.

[0082] The configuration of the tilt mechanism 5 is not limited to the above embodiment. The tilt mechanism 5 may be any mechanism capable of gradually retaining the position of the display unit 8 in the rotation direction R. For example, the elastic body 53 is not limited to a compression coil spring, and may be a torsion spring, a disc spring, a leaf spring, or the like. The number of steps 511, 512, and 513 is not limited to three.

[0083] In the above embodiment, the roll storage space 30A stores the medium roll 10A. Alternatively, fanfold paper may be stored in the roll storage space 30A. The medium 10 is not limited to thermal paper, but may be a tape printed with an ink ribbon, a tube, or the like. [Explanation of symbols]

[0084] 1. Printer 2. Chassis 3 Lower cover 4 Top cover 8 Display 19 Substrate 21 Front panel 30A roll storage space 31 Bottom plate 41 Upper Board 52 Stopper 64 First middle plate 65 Second opening 66, 67 Guide wall 68 First Buffer Wall 69 First Buffer Space 71 Second middle plate 74, 75 Second buffer wall 78 Second Buffer Space Axis 88, 89 93 Thermal Head 211 Outlet 411 First opening 641 Information Department 681 Notch F flow path

Claims

1. a housing that houses a printing unit that performs printing, the housing including a bottom plate extending intersecting a vertical direction, an upper plate extending intersecting the vertical direction and positioned higher than the bottom plate, and a first middle plate extending intersecting the vertical direction and positioned between the bottom plate and the upper plate in the vertical direction, and a board for controlling the printing unit being disposed between the bottom plate and the first middle plate in the vertical direction; a display unit that is connected to the upper plate via an axis that extends in a left-right direction perpendicular to the up-down direction and rotates around the axis; a stopper that is supported by the housing below the upper plate and is connected to the display unit via a first opening provided in the upper plate, and that gradually holds the attitude of the display unit in a rotational direction; Equipped with The upper surface of the first middle plate is A first buffer wall is provided in a flow path of liquid that enters the housing through the first opening in an upright position in which the direction from the top to the bottom is a vertical direction, and extends so as to intersect with the flow path, and defines a first buffer space in which the liquid accumulates. A printer characterized by:

2. The housing includes: A second middle plate is provided between the bottom plate and the first middle plate in the vertical direction and extends so as to intersect with the vertical direction, The base plate is disposed between the bottom plate and the second middle plate in the vertical direction, The first middle plate has: a second opening is provided at a downstream position of the flow path relative to the first buffer wall; The first buffer wall has: a notch is provided downward from an upper end of the first buffer wall to a position above a lower end of the first buffer wall and configured to guide the liquid to the second opening; A second buffer wall is provided on the upper surface of the second middle plate, the second buffer wall being a wall provided in the flow path of the liquid flowing through the second opening in the upright position and extending so as to intersect with the flow path, and defining a second buffer space in which the liquid accumulates.

2. The printer according to claim 1.

3. the first buffer wall is located on one side of the first opening in a specific direction perpendicular to the up-down direction, The first intermediate plate includes a guide portion extending downward as it moves toward the one of the specific directions, the first buffer wall extends upward from the one end of the guide portion in the specific direction, The cutout is disposed at a position overlapping with the first opening in a direction perpendicular to the up-down direction and the specific direction when viewed from the specific direction.

3. The printer according to claim 2.

4. the first buffer wall is located on one side of the first opening in a specific direction perpendicular to the up-down direction, The first intermediate plate includes a guide portion extending downward as it moves toward the one of the specific directions, the first buffer wall extends upward from the one end of the guide portion in the specific direction, The notch is disposed at a position shifted from the first opening in a direction perpendicular to the up-down direction and the specific direction when viewed from the specific direction.

3. The printer according to claim 2.

5. the first buffer wall is located on one side of the first opening in a specific direction perpendicular to the up-down direction, The first intermediate plate includes a guide portion extending downward as it moves toward the one of the specific directions, the first buffer wall extends upward from the one end of the guide portion in the specific direction, The guide portion is provided with a pair of guide walls protruding upward from both ends of the guide portion in a direction perpendicular to the vertical direction and the specific direction.

3. The printer according to claim 1 or 2.

6. The housing includes: a lower cover including the bottom plate, the lower cover being a cover in which the substrate is housed, the lower cover housing a medium to be printed by the printing unit, and defining the housing space that opens upward; a cover including the upper plate and the first middle plate, the upper cover being connected to the lower cover so as to be movable between a closed position in which the storage space is covered from above and an open position in which the storage space is opened; Equipped with The first middle plate is disposed between the bottom plate and the top plate in the up-down direction when the top cover is located at the closed position.

3. The printer according to claim 1 or 2.

7. the housing includes a discharge plate extending so as to intersect with a front-rear direction perpendicular to the up-down direction and the left-right direction, the discharge plate having a discharge port through which the medium printed by the printing unit is discharged from the housing; The ejection plate, the printing unit, the first buffer wall, and the stopper are arranged in the following order in the front-rear direction: the ejection plate, the printing unit, the first buffer wall, and the stopper.

3. The printer according to claim 1 or 2.

Images