Medium processing device

Abstract

To provide a medium processing device that can easily suppress influence of torsion on medium processing.SOLUTION: A medium processing device 11 is provided with an enclosure 12, a plurality of feet 13 provided at a bottom part 12b of the enclosure 12, which can contact an installation surface S, and a medium processing part 14 provided inside the enclosure 12, which performs processing to a medium 20. The plurality of feet 13 has: a first foot 13a; a second foot 13b arranged side by side with the first foot 13a in a width direction X of the medium processing device 11; a third foot 13c arranged side by side with the first foot 13a in a depth direction Y of the medium processing device 11; and a fourth foot 13d arranged side by side with the second foot 13b in the depth direction Y. A center of gravity of the medium processing device 11 is positioned in a fifth region. When the medium processing part 14 is provided across a second region and a fourth region, lengths of the first foot 13a, the second foot 13b, and the fourth foot 13d are the same as one another, and a length of the third foot 13c is shorter than a length of the fourth foot 13d.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a media processing device. [Background technology]

[0002] For example, an image forming apparatus is an example of a media processing device, as described in Patent Document 1. The image forming apparatus includes four feet provided on a bottom plate. Each foot includes an adjustment mechanism that allows the height to be adjusted.

[0003] An image forming device may deform in accordance with the distortion of the floor surface, which is an example of the installation surface. This deformation is also called twisting. When the image forming device deforms, paper, which is an example of a medium, may become misaligned, or the image formed on the paper may become distorted. Therefore, the installer can adjust the height of the feet to match the distortion of the floor surface to suppress the distortion of the image forming device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-192579 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the image forming apparatus of Patent Document 1, the installer must adjust the height of the feet individually using a tool such as a wrench, which results in poor workability. [Means for solving the problem]

[0006] A media processing device that solves the above problem is a media processing device comprising a housing, a plurality of feet provided on the bottom of the housing and capable of contacting an installation surface, and a media processing unit provided inside the housing and performing processing on media, the plurality of feet including a first foot, a second foot aligned with the first foot in the width direction of the media processing device, a third foot aligned with the first foot in the depth direction of the media processing device, and a fourth foot aligned with the second foot in the depth direction, and the area defined by a first line passing through a center position of the media processing device in the width direction and a second line passing through a center position of the media processing device in the depth direction is referred to as a first area, an area where the first foot is located, a second area where the second foot is located, and a fourth area where the third foot is located. Assuming that the area where the first foot is placed is the third area, the area where the fourth foot is located is the fourth area, and the area defined by a third line passing through the first foot and the fourth foot and a fourth line passing through the second foot and the third foot is the fifth area, the area adjacent to the first foot and the third foot is the sixth area, the area adjacent to the second foot and the fourth foot is the seventh area, and the area adjacent to the third foot and the fourth foot is the eighth area, when the center of gravity of the media processing device is located in the fifth area and the media processing unit is provided across the second area and the fourth area, the first foot, the second foot and the fourth foot will have the same lengths, and the length of the third foot will be shorter than the fourth foot. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram of one embodiment of a media processing device. [Diagram 2] FIG. 2 is a schematic diagram of the recording section. [Diagram 3] FIG. 3 is a schematic plan view of the media processing device. [Figure 4] FIG. 4 is a schematic plan view of a first modified example of a media processing device. [Diagram 5] FIG. 5 is a schematic plan view of a second modified example of a media processing device. [Figure 6]FIG. 6 is a schematic plan view of a third modified example of a media processing device. [Figure 7] FIG. 7 is a schematic plan view of a fourth modified example of a media processing device. [Figure 8] FIG. 8 is a schematic plan view of a fifth modified example of a media processing device. [Figure 9] FIG. 9 is a schematic plan view of a sixth modified example of a media processing device. [Figure 10] FIG. 10 is a schematic plan view of a seventh modified example of a media processing device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [Embodiment] An embodiment of a media processing device will be described below with reference to the drawings. The media processing device of this embodiment is, for example, an inkjet printer that records by ejecting ink, which is an example of a liquid, onto a medium such as paper.

[0009] In the drawings, the media processing device 11 is assumed to be placed on a horizontal plane, with the direction of gravity indicated as the Z axis, and the directions along the horizontal plane indicated as the X and Y axes. The X, Y, and Z axes are perpendicular to one another. In the following description, the direction parallel to the X axis is also referred to as the width direction X, the direction parallel to the Y axis is also referred to as the depth direction Y, and the direction parallel to the Z axis is also referred to as the vertical direction Z.

[0010] <Media processing device> As shown in Fig. 1, media processing device 11 includes a housing 12, multiple feet 13, and a media processing unit 14. Media processing device 11 may also include a detection unit 15, a cassette 16, a feeding unit 17, and a stacker 18. In Fig. 1, a transport path 21 along which media 20 is transported is shown by a dashed dotted line. Transport path 21 connects cassette 16 and stacker 18.

[0011] The housing 12 houses various components of the media processing device 11. The housing 12 may be covered with an exterior (not shown). The housing 12 may have at least one pillar 23. The pillar 23 may be a rectangular pillar or a cylindrical pillar. In this embodiment, the pillar 23 has a hollow pipe structure. A harness may be passed through the inside of the pillar 23, or components may be attached thereto.

[0012] Pillar 23 may have hole 24 on its side. Multiple holes 24 may be provided on one pillar 23. Hole 24 may be provided below a component (not shown) that is attached to pillar 23. Hole 24 may be provided at the lower end of pillar 23. Hole 24 may be formed by bending a part of the side of pillar 23 inwardly of pillar 23. By providing hole 24, even if a component is dropped into pillar 23, the dropped component can be easily retrieved.

[0013] The multiple feet 13 are provided on the bottom 12b of the housing 12. The multiple feet 13 are capable of contacting the installation surface S. The multiple feet 13 are positioned between the installation surface S and the housing 12 to support the housing 12. The multiple feet 13 float the housing 12 relative to the installation surface S. The multiple feet 13 include a first foot 13a, a second foot 13b, a third foot 13c, and a fourth foot 13d.

[0014] The detection unit 15 is, for example, a capacitance sensor capable of detecting temperature and humidity. The media processing device 11 may use the detection results of the detection unit 15 for transporting the medium 20. The detection unit 15 may include a holder 26 and a detection element 27. The detection unit 15 may be provided within the transport path 21 or in the vicinity of the transport path 21. The detection unit 15 provided in the vicinity of the transport path 21 can detect the environment in which the medium 20 is transported.

[0015] Holder 26 may be in a box shape that covers detection element 27 from above. Holder 26 may have a slit that allows air to pass through. Detection unit 15 may be provided so that detection element 27 faces downward. By installing detection element 27 facing downward, it is possible to reduce foreign matter such as paper powder that adheres to detection element 27, and therefore it is possible to suppress a decrease in detection accuracy due to the adhesion of foreign matter.

[0016] The cassette 16 is capable of housing the medium 20. The cassette 16 can be inserted into and removed from the housing 12 from the front side of the media processing device 11. The cassette 16 may be capable of housing multiple media 20 in a stacked state.

[0017] The feeding unit 17 sends out the media 20 stored in the cassette 16 one by one to the transport path 21. The feeding unit 17 may include a feeding roller 29 and a separation unit 30. The feeding roller 29 rotates while in contact with the medium 20 to send the medium 20 to the transport path 21. The feeding roller 29 feeds the uppermost medium 20 out of the media 20 stored in the cassette 16. The separation unit 30 separates the media 20 that are sent in a stacked state one by one. The separation unit 30 holds the second and subsequent media 20 from the top in the cassette 16.

[0018] <Media Processing Unit> The medium processing unit 14 is provided inside the housing 12. The medium processing unit 14 performs processing on the medium 20. The medium processing unit 14 may include a transport unit 32 and a recording unit 33. The transport unit 32 performs a transport process to transport the medium 20. The recording unit 33 performs a recording process to record on the medium 20.

[0019] The transport unit 32 transports the medium 20 sent by the feeding unit 17 along the transport path 21. The transport unit 32 transports the medium 20 in a transport direction Dc. The transport direction Dc is a direction along the transport path 21. The transport direction Dc is a direction from the cassette 16 toward the stacker 18. The transport unit 32 may include one or more transport rollers 35, an endless transport belt 36, and a pair of pulleys 37.

[0020] The transport rollers 35 rotate while sandwiching the medium 20, thereby transporting the medium 20 along the transport path 21. The transport rollers 35 eject the recorded medium 20 into the stacker 18. The stacker 18 receives the medium 20 transported by the transport unit 32.

[0021] The conveyor belt 36 is stretched around a pair of pulleys 37. The conveyor belt 36 faces the recording unit 33 across the conveyance path 21. The conveyor belt 36 supports a portion of the medium 20 in a flat state. The conveyor belt 36 may convey the medium 20 by rotating while adsorbing the medium 20.

[0022] The recording unit 33 may include a holding unit 39 and a liquid ejection unit 40. The holding unit 39 holds the liquid ejection unit 40. The liquid ejection unit 40 performs recording by ejecting liquid. The liquid ejection unit 40 has a nozzle surface 43 in which a plurality of nozzles 42 are open. The liquid ejection unit 40 may be provided such that the nozzle surface 43 is inclined with respect to a horizontal plane. The liquid ejection unit 40 ejects liquid in an ejection direction Dj. The ejection direction Dj may be a direction perpendicular to the nozzle surface 43 and intersects with the vertical direction Z.

[0023] 2, the liquid ejection unit 40 of this embodiment is a line head provided along the depth direction Y. The liquid ejection unit 40 ejects liquid from a plurality of nozzles 42 onto the transported medium 20. The liquid ejection unit 40 of this embodiment ejects liquid onto the transported medium 20 in a stationary state to perform recording. The liquid ejection unit 40 performs recording by ejecting liquid in the depth direction Y onto the medium 20 supported by the transport belt 36.

[0024] The liquid ejection section 40 may include a plurality of unit heads 45. The plurality of unit heads 45 are aligned in the depth direction Y. The configuration of each of the plurality of unit heads 45 is the same. The unit head 45 has a plurality of nozzle rows 46. That is, the liquid ejection section 40 has a plurality of nozzle rows 46. The nozzle row 46 is configured with a plurality of nozzles 42 aligned. The plurality of nozzles 42 constituting one nozzle row 46 are aligned in a diagonal direction with respect to the transport direction Dc and the depth direction Y. The plurality of nozzle rows 46 are inclined at a predetermined angle with respect to the transport direction Dc in which the medium 20 is transported. The predetermined angle is, for example, an angle smaller than 90 degrees.

[0025] As shown in FIG. 3, the first end 14f and the second end 14s of the medium processing unit 14 may be fixed to the housing 12. The first end 14f is the end on the rear side, which is the end on the second foot 13b side. The second end 14s is the end on the front side, which is the end on the fourth foot 13d side. The medium processing unit 14 may be directly fixed to the housing 12. The medium processing unit 14 may be indirectly fixed to the housing 12 via a fixing member or the like. The recording unit 33 may have both ends of the holding unit 39 fixed to the housing 12. The transport unit 32 may have the transport roller 35 and the bearings of the pulley 37 fixed to the housing 12.

[0026] <Foot> 3, the housing 12 may be substantially square in plan view. The first foot 13a to the fourth foot 13d may be provided at the four corners of the media processing device 11.

[0027] The first foot 13a and the second foot 13b are provided on the rear side of the media processing device 11. The second foot 13b is aligned with the first foot 13a in the width direction X of the media processing device 11. The third foot 13c and the fourth foot 13d are provided on the front side of the media processing device 11. The third foot 13c is aligned with the first foot 13a in the depth direction Y of the media processing device 11. The fourth foot 13d is aligned with the second foot 13b in the depth direction Y.

[0028] As shown in Fig. 1, the first foot 13a, the second foot 13b, and the fourth foot 13d have the same length. Specifically, the first foot 13a, the second foot 13b, and the fourth foot 13d have the same length in the vertical direction Z from the bottom portion 12b to their respective lower ends. For example, the first foot 13a, the second foot 13b, and the fourth foot 13d may have the same length by attaching the same member to the bottom portion 12b. In other words, the lengths of the first foot 13a, the second foot 13b, and the fourth foot 13d may be determined without taking into account the tolerances and assembly errors of the parts.

[0029] The length of the third foot 13c is shorter than that of the fourth foot 13d. The length in the vertical direction Z from the bottom 12b to the lower end of the third foot 13c is shorter than the length in the vertical direction Z from the bottom 12b to the lower end of the fourth foot 13d. The length of the third foot 13c may be shortened by using a part smaller than the first foot 13a, the second foot 13b, and the fourth foot 13d. The distance from the bottom 12b to the lower end of the third foot 13c may be shortened by attaching the third foot 13c at a position higher than the bottom 12b. In this case, the third foot 13c may be the same part as the first foot 13a, the second foot 13b, and the fourth foot 13d.

[0030] 3, in this embodiment, a first straight line L1 to a fourth straight line L4, and a first region R1 to an eighth region R8 are defined, as indicated by dashed lines. In this embodiment, the position of the center of the media processing device 11 in the width direction X and depth direction Y is defined as a central position P.

[0031] The first straight line L1 is a line that passes through the center position P and extends in the depth direction Y. The second straight line L2 is a line that passes through the center position P and extends in the width direction X. The third straight line L3 is a line that passes through the first foot 13a and the fourth foot 13d. The fourth straight line L4 is a line that passes through the second foot 13b and the third foot 13c.

[0032] The first region R1 is a region defined by the first straight line L1 and the second straight line L2, and is a region in which the first foot 13a is located. The second region R2 is a region defined by the first straight line L1 and the second straight line L2, in which the second foot 13b is located.

[0033] The third region R3 is a region defined by the first straight line L1 and the second straight line L2, and is a region in which the third foot 13c is located. The fourth region R4 is a region defined by the first straight line L1 and the second straight line L2, and is a region in which the fourth foot 13d is located.

[0034] The fifth region R5 is a region defined by the third straight line L3 and the fourth straight line L4, and is adjacent to the first foot 13a and the second foot 13b. The sixth region R6 is a region defined by the third straight line L3 and the fourth straight line L4, and is adjacent to the first foot 13a and the third foot 13c.

[0035] The seventh region R7 is a region defined by the third straight line L3 and the fourth straight line L4, and is adjacent to the second foot 13b and the fourth foot 13d. The eighth region R8 is a region defined by the third straight line L3 and the fourth straight line L4, and is adjacent to the third foot 13c and the fourth foot 13d.

[0036] In this embodiment, the medium processing section 14 is provided across the second area R2 and the fourth area R4. The medium processing section 14 is provided across a plurality of areas aligned in the depth direction Y. In this embodiment, the center of gravity C of the media processing device 11 is located in the fifth region R5. The center of gravity C is located on the rear side of the media processing device 11. The center of gravity C may be located in a position within the fifth region R5 that overlaps with the first region R1, or may be located in a position that overlaps with the second region R2. The center of gravity C may be located on the opposite side of the second straight line L2 from the third foot 13c in the depth direction Y. The center of gravity C may be located in a region diagonal to the third foot 13c.

[0037] <Operation of the embodiment> The operation of this embodiment will be described. When the media processing device 11 is placed on an installation surface S, the first foot 13a and second foot 13b on the rear side where the center of gravity C is located, and the fourth foot 13d, which has the same length as the first foot 13a and second foot 13b, come into contact with the installation surface S. Installation of the media processing device 11 is complete when the third foot 13c is floating above the installation surface S.

[0038] Because the third foot 13c is floating, the housing 12 is likely to twist in a direction that causes the third foot 13c to drop. However, the medium processing unit 14 is located on the opposite side of the first line L1 from the third foot 13c. Therefore, even if the housing 12 is twisted near the third foot 13c, the effect on the processing of the medium 20 by the medium processing unit 14 is limited.

[0039] <Effects of the embodiment> The effects of this embodiment will be described. (1-1) When the installation surface S is distorted, such as when there is a step on the installation surface S, the foot 13 in the area where the center of gravity C is located will always come into contact with the installation surface S, and the foot 13 in the area where the center of gravity C is not located will be easily floated. The floating foot 13 will be displaced downward, which may cause the housing 12 and the medium processing unit 14 to twist. In this embodiment, the length of the third foot 13c is shorter than the lengths of the first foot 13a, the second foot 13b, and the fourth foot 13d. Therefore, by making the third foot 13c more likely to float from the installation surface S, it is possible to make the first foot 13a, the second foot 13b, and the fourth foot 13d more likely to come into contact with the installation surface S. In addition, when the fourth foot 13d floats, the amount of displacement of the fourth foot 13d can be suppressed. In more detail, the amount of displacement of the fourth foot 13d can be suppressed by the difference between the length of the third foot 13c and the length of the fourth foot 13d. First foot 13a, second foot 13b, and fourth foot 13d support the area where the center of gravity C of media processing device 11 and media processing unit 14 are located. This prevents twisting of the area where media processing unit 14 is located, and makes it easy to prevent the effect of twisting on media processing without the installer having to adjust the height of feet 13.

[0040] (1-2) The first end 14f and the second end 14s of the medium processing unit 14 are fixed to the housing 12. That is, the location where the first end 14f is fixed is separated from the location where the second end 14s is fixed, so the housing 12 is prone to deformation. However, the second foot 13b is provided at the location where the first end 14f is fixed. The fourth foot 13d is provided at the location where the second end 14s is fixed. Therefore, twisting of the area where the medium processing unit 14 is provided can be suppressed.

[0041] (1-3) For example, if a twist occurs in the area where the transport unit 32 is provided, there is a risk that the transport unit 32 will not be able to transport the medium 20 in a straight line. In this regard, twisting in the area where the medium processing unit 14 including the transport unit 32 is provided is suppressed, so that the effect of twisting on the transport of the medium 20 can be suppressed.

[0042] (1-4) For example, if twisting occurs in the area where the recording unit 33 is provided, there is a risk of the recording quality deteriorating, such as distortion of the recorded image. In this regard, twisting of the area where the medium processing unit 14 including the recording unit 33 is provided is suppressed, so that the effect of twisting on the recording quality can be suppressed.

[0043] (1-5) If twisting occurs in the region where the liquid ejection unit 40 is provided, there is a risk of the recording quality deteriorating due to a shift in the position where the liquid adheres to the medium 20. In this regard, twisting in the region where the medium processing unit 14 including the liquid ejection unit 40 is provided is suppressed, so that the effect of twisting on recording quality can be suppressed.

[0044] (1-6) The length of the line head is longer than the length of the medium 20, and therefore the effect of any twisting is likely to be large. In this regard, twisting in the area where the line head is provided is suppressed, and therefore deterioration of recording quality can be suppressed.

[0045] (1-7) Since the nozzle rows 46 are inclined with respect to the transport direction Dc, if a twist occurs, there is a risk that there will be places where the liquid does not adhere or places where the liquid adheres in an overlapping manner. In this regard, since the twist in the area where the line head is provided is suppressed, it is possible to suppress a decrease in recording quality.

[0046] (1-8) Placing heavy parts on the front side of the media processing device 11 can impair workability for the user. In contrast, the center of gravity C of the media processing device 11 is located on the rear side. This makes it easier to place heavy parts on the rear side of the media processing device 11, preventing a decrease in workability.

[0047] [Example of change] This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction.

[0048] <First change example> As shown in Fig. 4, the center of gravity C may be located in the eighth region R8. The center of gravity C may be located on the front side of the media processing device 11. The center of gravity C may be located in the area where the eighth region R8 and the third region R3 overlap, or in the area where the eighth region R8 and the fourth region R4 overlap. If the media processing device 14 is provided across the second region R2 and the fourth region R4, the length of the first foot 13a may be shorter than the length of the second foot 13b. The lengths of the second foot 13b, the third foot 13c, and the fourth foot 13d may be the same.

[0049] <Second modification example> As shown in Fig. 5, the center of gravity C may be located in the fifth region R5. The center of gravity C may be located on the rear side of the media processing device 11. The center of gravity C may be located in the area where the fifth region R5 and the first region R1 overlap, or in the area where the fifth region R5 and the second region R2 overlap. If the media processing device 14 is provided across the first region R1 and the third region R3, the length of the fourth foot 13d may be shorter than the length of the third foot 13c. The lengths of the first foot 13a, the second foot 13b, and the third foot 13c may be the same.

[0050] <Third modification example> As shown in Fig. 6, the center of gravity C may be located in the eighth region R8. The center of gravity C may be located on the front side of the media processing device 11. The center of gravity C may be located in the area where the eighth region R8 and the third region R3 overlap, or in the area where the eighth region R8 and the fourth region R4 overlap. If the media processing device 14 is provided across the first region R1 and the third region R3, the length of the second foot 13b may be shorter than the length of the first foot 13a. The lengths of the first foot 13a, the third foot 13c, and the fourth foot 13d may be the same.

[0051] <Fourth modified example> As shown in FIG. 7, the center of gravity C may be located in the seventh region R7. The center of gravity C may be located on a side of the media processing device 11. The center of gravity C may be located in the area where the seventh region R7 and the second region R2 overlap, or in the area where the seventh region R7 and the fourth region R4 overlap. If the media processing unit 14 is provided across the first region R1 and the second region R2, the length of the third foot 13c may be shorter than the length of the fourth foot 13d. The first foot 13a, the second foot 13b, and the fourth foot 13d may have the same length. Both ends of the media processing unit 14 in the width direction X may be fixed to the housing 12.

[0052] <Fifth modified example> As shown in Fig. 8, the center of gravity C may be located in the sixth region R6. The center of gravity C may be located on a side of the media processing device 11. The center of gravity C may be located in the area where the sixth region R6 and the first region R1 overlap, or in the area where the sixth region R6 and the third region R3 overlap. If the media processing device 14 is provided across the first region R1 and the second region R2, the length of the fourth foot 13d may be shorter than the length of the third foot 13c. The lengths of the first foot 13a, the second foot 13b, and the third foot 13c may be the same.

[0053] <Sixth Change Example> As shown in Fig. 9, the center of gravity C may be located in the seventh region R7. The center of gravity C may be located on a side of the media processing device 11. The center of gravity C may be located in the area where the seventh region R7 and the second region R2 overlap, or in the area where the seventh region R7 and the fourth region R4 overlap. If the media processing device 14 is provided across the third region R3 and the fourth region R4, the length of the first foot 13a may be shorter than the length of the second foot 13b. The lengths of the second foot 13b, the third foot 13c, and the fourth foot 13d may be the same.

[0054] <Seventh Change Example> As shown in Fig. 10, the center of gravity C may be located in the sixth region R6. The center of gravity C may be located on a side of the media processing device 11. The center of gravity C may be located in the area where the sixth region R6 and the first region R1 overlap, or in the area where the sixth region R6 and the third region R3 overlap. If the media processing device 14 is provided across the third region R3 and the fourth region R4, the length of the second foot 13b may be shorter than the length of the first foot 13a. The lengths of the first foot 13a, the third foot 13c, and the fourth foot 13d may be the same.

[0055] <Other changes> The medium processing section 14 may be located on one side of the first straight line L1 in the width direction X, and the center of gravity C may be located on the other side of the first straight line L1 in the width direction X. For example, the medium processing section 14 may be provided across the second region R2 and the fourth region R4, and the center of gravity C may be located in the sixth region R6. In this case, one of the second foot 13b and the fourth foot 13d may be shorter than the other. The second foot 13b and the fourth foot 13d may be shorter on the side of the housing 12 with greater rigidity.

[0056] The medium processing section 14 may be located on one side of the second straight line L2 in the depth direction Y, and the center of gravity C may be located on the other side of the second straight line L2 in the depth direction Y. For example, the medium processing section 14 may be provided across the first region R1 and the second region R2, and the center of gravity C may be located in the eighth region R8. In this case, one of the first foot 13a and the second foot 13b may be shorter than the other. Of the first foot 13a and the second foot 13b, the one with the greater rigidity of the housing 12 may be shorter.

[0057] The nozzle row 46 may extend in the depth direction Y. The nozzle row 46 may extend in the transport direction Dc. The liquid ejection unit 40 may be a serial head that is capable of reciprocating in the depth direction Y.

[0058] The medium processing device 11 may be, for example, a supply device that supplies the medium 20 to a printer, etc. The medium processing unit 14 may include a transport unit 32 that transports the medium 20, but may not include a recording unit 33.

[0059] The media processing device 11 may be a post-processing device that performs post-processing on the recorded media 20. The media processing unit 14 may include a post-processing unit. The media processing unit 14 may perform a stapler process that staples multiple media 20 together, a punch process that punches holes in the media 20, a shift process that shifts the media 20 by the number of copies and ejects them, and the like.

[0060] The medium processing unit 14 may include a reading unit that performs a reading process to read an image on the medium 20 . In the above embodiment, one of the first end 14f and the second end 14s of the medium processing section 14 may be fixed to the housing 12. The end of the medium processing section 14 on the width direction X side may be fixed to the housing 12.

[0061] The media processing device 11 may include five or more feet 13 . The media processing device 11 is not limited to an inkjet printer, but may be a laser printer, a thermal printer, a dot matrix printer, a digital printing machine, or the like.

[0062] [Definition] The term "at least one" as used herein means "one or more" of the desired options. As an example, the term "at least one" as used herein means "only one option" or "both of two options" if the number of options is two. As another example, the term "at least one" as used herein means "only one option", "any combination of two options", or "any combination of three or more options" if the number of options is three or more.

[0063] [Note] The technical ideas and effects obtained from the above-described embodiment and modified examples will be described below.

[0064] (A) A media processing device includes a housing, a plurality of feet provided on the bottom of the housing and capable of contacting an installation surface, and a media processing unit provided inside the housing for processing media, the plurality of feet including a first foot, a second foot aligned with the first foot in the width direction of the media processing device, a third foot aligned with the first foot in the depth direction of the media processing device, and a fourth foot aligned with the second foot in the depth direction, and the plurality of feet are defined as an area defined by a first line passing through a center position of the media processing device in the width direction and a second line passing through a center position of the media processing device in the depth direction, the area in which the first foot is located is referred to as a first area, the area in which the second foot is located is referred to as a second area, and the area in which the third foot is located is referred to as a second area. If the area is the third area, the area where the fourth foot is located is the fourth area, and the area defined by the third line passing through the first foot and the fourth foot and the fourth line passing through the second foot and the third foot is the fifth area, the area adjacent to the first foot and the third foot is the sixth area, the area adjacent to the second foot and the fourth foot is the seventh area, and the area adjacent to the third foot and the fourth foot is the eighth area, when the center of gravity of the media processing device is located in the fifth area and the media processing unit is provided across the second area and the fourth area, the lengths of the first foot, the second foot and the fourth foot are the same, and the length of the third foot is shorter than the fourth foot.

[0065] According to this configuration, the length of the third foot is shorter than the lengths of the first foot, the second foot, and the fourth foot. Therefore, by making the third foot more likely to float from the installation surface, the first foot, the second foot, and the fourth foot can be more likely to contact the installation surface. Even if the fourth foot floats, the amount of displacement of the fourth foot can be suppressed. The first foot, the second foot, and the fourth foot support the area where the center of gravity of the media processing device and the media processing unit are located. Therefore, twisting of the area where the media processing unit is provided can be suppressed, and the effect of twisting on media processing can be easily suppressed.

[0066] (B) In the media processing device described in (A), the media processing section may be fixed to the housing at a first end on the second foot side and a second end on the fourth foot side. According to this configuration, the first end and the second end of the medium processing section are fixed to the housing. That is, the location where the first end is fixed and the location where the second end is fixed are separated, so the housing is prone to deformation. However, a second foot is provided at the location where the first end is fixed. A fourth foot is provided at the location where the second end is fixed. Therefore, twisting of the area where the medium processing section is provided can be suppressed.

[0067] (C) In the media processing device described in (A) or (B), the media processing section may include a transport section that transports the medium. For example, if a twist occurs in the area where the transport unit is provided, there is a risk that the transport unit will not be able to transport the medium in a straight line. In this regard, with this configuration, twisting in the area where the medium processing unit including the transport unit is provided is suppressed, so that the effect of twisting on the transport of the medium can be suppressed.

[0068] (D) In ​​the media processing device described in (A) to (C), the media processing unit may include a recording unit that records on the medium. For example, if a twist occurs in the area where the recording unit is provided, there is a risk that the recording quality will deteriorate, such as distortion of the recorded image. In this regard, with this configuration, twisting in the area where the medium processing unit including the recording unit is provided is suppressed, so that the effect of twisting on the recording quality can be suppressed.

[0069] In the media processing device described in (E) and (D), the recording unit may include a liquid ejection unit that performs recording by ejecting liquid. If twisting occurs in the area where the liquid ejection unit is provided, there is a risk of the recording quality deteriorating due to the position where the liquid adheres to the medium shifting, etc. In this regard, with this configuration, twisting in the area where the medium processing unit including the liquid ejection unit is provided is suppressed, so that the effect of twisting on the recording quality can be suppressed.

[0070] In the media processing device described in (F) and (E), the liquid ejection section may be a line head provided along the depth direction. Since the length of the line head is longer than the length of the medium, the effect of any twisting is likely to be large. In this regard, with this configuration, twisting in the area where the line head is provided is suppressed, and deterioration of recording quality can be suppressed.

[0071] In the media processing device described in (G), (E) or (F), the liquid ejection section may have a plurality of nozzle rows, and the plurality of nozzle rows may be inclined at a predetermined angle with respect to the transport direction in which the medium is transported.

[0072] Since the multiple nozzle rows are inclined with respect to the transport direction, if a twist occurs, there is a risk that there will be places where the liquid does not adhere and places where the liquid adheres in an overlapping manner. In this regard, with this configuration, twisting in the area where the line head is provided is suppressed, and therefore deterioration of recording quality can be suppressed.

[0073] In the media processing device described in (H)(A) to (G), the center of gravity may be located on the rear side of the media processing device, the third foot and the fourth foot may be provided on the front side of the media processing device, and the first foot and the second foot may be provided on the rear side of the media processing device.

[0074] Placing heavy parts on the front side of the media processing device can make it difficult for the user to use the device. With this configuration, the center of gravity of the media processing device is located on the rear side, making it easier to place heavy parts on the rear side of the media processing device, preventing a decrease in ease of use. [Explanation of symbols]

[0075] 11...media processing device, 12...housing, 12b...bottom, 13...foot, 13a...first foot, 13b...second foot, 13c...third foot, 13d...fourth foot, 14...media processing unit, 14f...first end, 14s...second end, 15...detection unit, 16...cassette, 17...feeding unit, 18...stacker, 20...medium, 21...transport path, 23...pillar, 24...hole, 26...holder, 27...detection element, 29...feeding roller, 30...separation unit, 32...transport unit, 33...recording unit, 35...transport roller, 36... Conveyor belt, 37...pulley, 39...holding portion, 40...liquid ejection portion, 42...nozzle, 43...nozzle surface, 45...unit head, 46...nozzle row, C...center of gravity, Dc...conveyance direction, Dj...ejection direction, L1...first straight line, L2...second straight line, L3...third straight line, L4...fourth straight line, P...center position, R1...first region, R2...second region, R3...third region, R4...fourth region, R5...fifth region, R6...sixth region, R7...seventh region, R8...eighth region, S...installation surface, X...width direction, Y...depth direction, Z...vertical direction.

Claims

1. A housing and A plurality of feet provided on a bottom of the housing and capable of contacting an installation surface; a media processing unit provided inside the housing and configured to process a medium; A media processing device comprising: The plurality of feet include The first foot, a second foot aligned with the first foot in a width direction of the media processing device; a third foot aligned with the first foot in a depth direction of the media processing device; a fourth foot aligned with the second foot in the depth direction; having an area defined by a first line passing through a center position of the media processing device in the width direction and a second line passing through a center position of the media processing device in the depth direction, the area in which the first foot is located is defined as a first area, the area in which the second foot is located is defined as a second area, the area in which the third foot is located is defined as a third area, and the area in which the fourth foot is located is defined as a fourth area; Assuming that the area defined by a third line passing through the first foot and the fourth foot and a fourth line passing through the second foot and the third foot is a fifth area, an area adjacent to the first foot and the second foot is a sixth area, an area adjacent to the first foot and the third foot is a seventh area, and an area adjacent to the third foot and the fourth foot is an eighth area, A media processing device characterized in that, when the center of gravity of the media processing device is located in the fifth area and the media processing unit is arranged across the second area and the fourth area, the lengths of the first foot, the second foot and the fourth foot are the same, and the length of the third foot is shorter than the length of the fourth foot.

2. The media processing device according to claim 1 , wherein the media processing section has a first end portion on the second foot side and a second end portion on the fourth foot side fixed to the housing.

3. The media processing device according to claim 1 , wherein the media processing unit includes a transport unit that transports the media.

4. The media processing device according to claim 3 , wherein the media processing unit includes a recording unit that records on the medium.

5. The media processing device according to claim 4 , wherein the recording unit includes a liquid ejection unit that performs recording by ejecting liquid.

6. The media processing device according to claim 5 , wherein the liquid ejection unit is a line head provided along the depth direction.

7. the liquid ejection unit has a plurality of nozzle rows, The media processing device according to claim 6 , wherein the plurality of nozzle rows are inclined at a predetermined angle with respect to a transport direction in which the medium is transported.

8. the center of gravity is located on the rear side of the media processing device, the third foot and the fourth foot are provided on a front side of the media processing device, The media processing device according to claim 5 , wherein the first foot and the second foot are provided on a rear side of the media processing device.

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