WO2017086247A1 - 液体噴射システム - Google Patents

液体噴射システム Download PDF

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Publication number
WO2017086247A1
WO2017086247A1 PCT/JP2016/083510 JP2016083510W WO2017086247A1 WO 2017086247 A1 WO2017086247 A1 WO 2017086247A1 JP 2016083510 W JP2016083510 W JP 2016083510W WO 2017086247 A1 WO2017086247 A1 WO 2017086247A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
tank
wall
axis direction
mechanism unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/083510
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
五十嵐　人志
川上　和久
克己 山田
康弘 田口
柳田　栄子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of WO2017086247A1 publication Critical patent/WO2017086247A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17553—Outer structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17506—Refilling of the cartridge
    • B41J2/17509—Whilst mounted in the printer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers

Definitions

  • the present invention relates to a liquid jet system and the like.
  • an ink jet printer is known as an example of a liquid ejecting apparatus.
  • printing on a print medium can be performed by ejecting ink, which is an example of a liquid, from a jet head onto a print medium such as print paper.
  • a configuration in which ink stored in a tank, which is an example of a liquid container, is conventionally supplied to an ejection head. (For example, refer to Patent Document 1).
  • a configuration in which a liquid container such as a tank is added to a liquid ejecting apparatus such as an ink jet printer may be expressed as a liquid ejecting system.
  • the liquid ejecting system described in Patent Document 1 has a problem that the liquid ejecting system tends to be large when the volume of the liquid container is increased.
  • the present invention can solve at least the above-described problems and can be realized as the following forms or application examples.
  • a liquid ejecting system capable of ejecting a liquid toward a target medium, including a liquid ejecting head capable of ejecting the liquid, and changing a relative position of the medium with respect to the liquid ejecting head.
  • a liquid storage container having a liquid storage section capable of storing the liquid supplied to the liquid ejecting head, wherein the liquid can be injected into the liquid storage section
  • this liquid ejection system it is easy to reduce an increase in the projected area (footprint) in plan view between the mechanism unit and the liquid container. Therefore, it is easy to reduce the increase in the size of the liquid ejection system.
  • the portion of the liquid container that overlaps the region of the mechanism unit is positioned vertically below the mechanism unit, so that the projected area in plan view of the mechanism unit and the liquid container is small. Easy to reduce the growth.
  • the liquid injection system further includes an air introduction unit that communicates with the liquid storage unit and can introduce air into the liquid storage unit, and the liquid injection unit is located above the horizontal direction.
  • this liquid ejection system it is easy to reduce an increase in the projected area in plan view between the mechanism unit and the atmosphere introduction unit. Therefore, it is easy to reduce the increase in the size of the liquid ejection system.
  • the liquid injection system further includes an air introduction unit that communicates with the liquid storage unit and can introduce air into the liquid storage unit, and the liquid injection unit is located above the horizontal direction.
  • the mechanism unit is viewed from above in the vertical orientation, at least a part of the atmosphere introduction part overlaps the area of the mechanism unit, and overlaps the area of the mechanism unit in the atmosphere introduction part.
  • the liquid ejecting system is characterized in that the portion that is located is positioned vertically above the mechanism unit.
  • the portion of the atmosphere introduction portion that overlaps the region of the mechanism unit is located vertically above the mechanism unit, so that the projected area in plan view of the mechanism unit and the atmosphere introduction portion is small. Easy to reduce the growth.
  • the volume of the atmosphere introducing unit is equal to or larger than the volume of the liquid containing unit. .
  • the air introduction part has a volume capable of receiving the liquid in the liquid storage part. For this reason, for example, even if the liquid in the liquid storage part flows into the air introduction part, the liquid that has flowed in can be retained in the air introduction part. Easy to avoid leaking outside.
  • the air introducing unit is configured to be separable from the liquid container.
  • the air introduction part is configured to be separable from the liquid container. That is, the liquid storage container and the air introduction part are configured separately from each other. With this configuration, it is possible to add an air introduction part to the liquid container or to expand the air introduction part.
  • connection between the air introduction part and the liquid container can be achieved via the connection part.
  • connection between the air introduction part and the liquid container can be achieved through the tube.
  • connection portion is located outside the path of the relative position change between the liquid ejecting head and the medium. system.
  • the connecting portion is located outside the mechanism unit.
  • the image forming apparatus includes a scanner unit capable of reading an image, and in the posture in which the liquid injecting unit faces upward in the horizontal direction, the scanner unit is more than the mechanism unit.
  • the mechanism unit is disposed at a position that overlaps the mechanism unit, and in the posture, overlaps the area of the mechanism unit in the atmosphere introduction portion.
  • this liquid ejecting system it is easy to reduce an increase in the projected area in plan view of the scanner unit, the air introduction unit, and the mechanism unit. Therefore, it is easy to reduce the increase in the size of the liquid ejection system.
  • the above-described liquid ejecting system includes a scanner unit capable of reading an image, and in the posture in which the liquid injection unit faces upward from the horizontal direction, the scanner unit is more than the mechanism unit.
  • the mechanism unit When the mechanism unit is viewed from above, the mechanism unit is disposed at a position that overlaps the mechanism unit, and in the posture, overlaps the area of the mechanism unit in the atmosphere introduction portion.
  • a liquid ejecting system wherein a portion is located beside the scanner unit.
  • this liquid ejecting system it is easy to reduce an increase in the projected area in plan view of the scanner unit and the mechanism unit.
  • the portion of the atmosphere introduction portion that overlaps the region of the mechanism unit is located beside the scanner unit, it is easy to reduce the increase in the thickness of the liquid ejection system. Therefore, it is easy to reduce the increase in the size of the liquid ejection system.
  • FIG. 3 is a perspective view illustrating a main configuration of the liquid ejecting system according to the first embodiment.
  • FIG. 3 is a perspective view illustrating a main configuration of the liquid ejecting system according to the first embodiment.
  • FIG. 3 is a perspective view illustrating a main configuration of the liquid ejecting system according to the first embodiment.
  • FIG. 2 is a plan view showing the main configuration of the liquid ejection system in the first embodiment.
  • 1 is a perspective view showing a tank of Example 1-1.
  • FIG. 1 is a perspective view showing a tank of Example 1-1.
  • FIG. 1 is an exploded perspective view showing a tank of Example 1-1.
  • FIG. FIG. 3 is a perspective view showing a case of the tank according to Example 1-1.
  • FIG. 3 is a perspective view showing a case of the tank according to Example 1-1.
  • the side view which shows the tank of Example 1-1. 1 is a perspective view showing a liquid ejection system on which a tank according to Example 1-1 is mounted.
  • FIG. 6 is a perspective view illustrating a liquid ejection system on which a tank according to Example 1-2 is mounted.
  • FIG. 6 is a side view showing a liquid ejection system on which a tank according to Example 1-2 is mounted.
  • FIG. 6 is a perspective view showing a liquid ejection system on which a tank according to Embodiment 1-3 is mounted.
  • FIG. 4 is a side view showing a liquid ejection system on which a tank according to Embodiment 1-3 is mounted.
  • FIG. 4 is an exploded perspective view showing the tank of Example 1-4.
  • FIG. 6 is a perspective view illustrating a liquid ejecting system in which the tank according to Embodiment 1-4 is mounted. The side view which shows the tank of Example 1-5.
  • FIG. 6 is a perspective view illustrating a liquid ejecting system in which the tank of Example 1-5 is mounted.
  • FIG. 6 is a side view showing a liquid ejecting system in which the tank of Example 1-5 is mounted.
  • FIG. 7 is a perspective view showing a liquid ejection system on which the tank of Example 1-6 is mounted.
  • FIG. 7 is a side view showing a liquid ejecting system in which the tank of Example 1-6 is mounted.
  • FIG. 7 is a side view showing a liquid ejecting system in which the tank of Example 1-7 is mounted.
  • FIG. 9 is a side view showing a liquid ejecting system in which the tank of Example 1-8 is mounted.
  • FIG. 10 is a side view showing a liquid ejecting system in which the tank of Example 1-9 is mounted.
  • FIG. 10 is a side view showing a liquid ejecting system in which the tank of Example 1-10 is mounted.
  • FIG. 12 is a side view showing a liquid ejecting system in which the tank of Example 1-11 is mounted.
  • FIG. 13 is a side view showing a liquid ejecting system in which the tank of Example 1-12 is mounted.
  • FIG. 14 is a side view schematically showing a liquid ejecting system in which the tank and the air introduction unit of Example 1-13 are mounted.
  • FIG. 6 is a side view schematically showing another configuration example of the liquid ejection system in the first embodiment.
  • FIG. 6 is a side view schematically showing another configuration example of the liquid ejection system in the first embodiment.
  • FIG. 9 is a perspective view illustrating a main configuration of a liquid ejection system according to a second embodiment.
  • FIG. 9 is a perspective view illustrating a main configuration of a liquid ejection system according to a second embodiment.
  • FIG. 6 is an exploded perspective view showing a tank according to Example 2-1.
  • FIG. 6 is a perspective view illustrating a liquid ejection system on which a tank according to Example 2-1 is mounted.
  • FIG. 6 is a perspective view illustrating a liquid ejection system on which a tank according to Embodiment 2-2 is mounted.
  • FIG. 6 is a perspective view illustrating a liquid ejection system on which a tank according to Example 2-3 is mounted.
  • FIG. 6 is a side view schematically showing a liquid ejecting system in which a tank and an air introduction unit of Example 2-4 are mounted.
  • FIG. 14 is a side view schematically showing another configuration example of the liquid ejection system in the second embodiment.
  • FIG. 14 is a side view schematically showing another configuration example of the liquid ejection system in the second embodiment.
  • Embodiments will be described with reference to the drawings, taking as an example a liquid ejecting system including an ink jet printer (hereinafter referred to as a printer) which is an example of a liquid ejecting apparatus.
  • a printer an ink jet printer
  • the structure and the scale of a member may differ.
  • the liquid ejecting system 1 includes a printer 3 that is an example of a liquid ejecting apparatus, an ink supply device 4 that is an example of a liquid supplying apparatus, and a scanner unit 5. Yes.
  • the printer 3 has a housing 6.
  • the housing 6 constitutes the outer shell of the printer 3.
  • the ink supply device 4 is accommodated in the housing 6.
  • the ink supply device 4 includes a tank 7 that is an example of a liquid container.
  • the ink supply device 4 has a plurality (two or more than two) of tanks 7. In the present embodiment, four tanks 7 are provided.
  • the housing 6 and the scanner unit 5 constitute an outer shell of the liquid ejecting system 1. Note that a configuration in which the scanner unit 5 is omitted may be employed as the liquid ejecting system 1.
  • the tank 7 is an example of a liquid storage container.
  • the liquid ejecting system 1 can perform printing on a recording medium P such as recording paper with ink that is an example of a liquid.
  • FIG. 1 illustrates a state in which the liquid ejecting system 1 is arranged on the XY plane defined by the X axis and the Y axis.
  • the state when the liquid ejecting system 1 is arranged on the XY plane in a state where the XY plane coincides with a horizontal plane is the use state of the liquid ejecting system 1.
  • the posture of the liquid ejecting system 1 when the liquid ejecting system 1 is arranged on the XY plane that matches the horizontal plane is referred to as a usage posture of the liquid ejecting system 1.
  • the Z axis is an axis orthogonal to the XY plane.
  • the Z-axis direction is a vertically upward direction.
  • the ⁇ Z axis direction is the vertically downward direction in FIG.
  • the direction of the arrow indicates the + (positive) direction
  • the direction opposite to the direction of the arrow indicates the-(negative) direction.
  • the four tanks 7 described above are arranged along the X axis. For this reason, the X-axis direction can also be defined as the direction in which the four tanks 7 are arranged.
  • the printer 3 and the scanner unit 5 are overlapped with each other.
  • the scanner unit 5 In a state where the printer 3 is used, the scanner unit 5 is positioned vertically above the printer 3.
  • the scanner unit 5 is a flat bed type and has an image sensor (not shown) such as an image sensor.
  • the scanner unit 5 can read an image or the like recorded on a medium such as paper as image data via an image sensor. For this reason, the scanner unit 5 functions as an image reading device.
  • the scanner unit 5 is configured to be rotatable with respect to the printer 3.
  • the scanner unit 5 also has a function as a lid of the printer 3. The operator can rotate the scanner unit 5 with respect to the printer 3 as shown in FIG. 2 by lifting the scanner unit 5 in the Z-axis direction. Accordingly, the scanner unit 5 that functions as a lid of the printer 3 can be opened with respect to the printer 3.
  • the printer 3 is provided with a paper discharge unit 11.
  • the recording medium P is discharged from the paper discharge unit 11.
  • the surface on which the paper discharge unit 11 is provided is a front surface 13 of the printer 3.
  • the liquid ejection system 1 includes an upper surface 15 that intersects the front surface 13 and a side portion 19 that intersects the front surface 13 and the upper surface 15.
  • the ink supply device 4 is provided on the side portion 19 side.
  • the housing 6 is provided with a window portion 21. The window portion 21 is provided on the front surface 13 of the housing 6.
  • the window portion 21 is light transmissive.
  • a tank 7 is provided at a position overlapping the window portion 21. For this reason, an operator who uses the liquid ejection system 1 can visually recognize the tank 7 through the window portion 21.
  • the window portion 21 is provided as an opening formed in the housing 6.
  • the window part 21 provided as opening is obstruct
  • omitted the member 22 which closes the window part 21 may be employ
  • At least a part of the portion facing the window portion 21 of the tank 7 has light transmittance.
  • the ink in the tank 7 can be visually recognized from the portion of the tank 7 having light transmittance. Therefore, the operator can visually recognize the amount of ink in each tank 7 by visually recognizing the four tanks 7 through the window portion 21. That is, in the tank 7, at least a part of the portion facing the window portion 21 can be used as a visual recognition portion that can visually recognize the amount of ink.
  • the housing 6 has a cover 23.
  • the cover 23 is configured to be rotatable with respect to the housing 6 in the R1 direction in the figure.
  • the cover 23 is provided on the front surface 13.
  • the cover 23 is provided at a position overlapping the tank 7 on the front surface 13 of the printer 3.
  • the cover 23 opens with respect to the housing 6.
  • the housing 6 includes a first housing 24 and a second housing 25 as shown in FIG.
  • the first housing 24 and the second housing 25 are stacked along the Z axis.
  • the first housing 24 is located more in the ⁇ Z axis direction than the second housing 25.
  • a tank 7, a mechanism unit (described later), and the like are accommodated. That is, the tank 7 and the mechanism unit are covered with the housing 6. For this reason, the tank 7 and the mechanism unit can be protected by the housing 6.
  • the waste liquid absorption unit 28 includes an absorbing material that can absorb ink discharged from the recording unit 31 of the mechanism unit 26.
  • a control circuit for controlling the driving of the liquid ejecting system 1 electrical components, electronic components, and the like are mounted. In the electrical wiring board 29, the control circuit, electrical components, electronic components, and the like are electrically wired to each other.
  • the electrical wiring board 29 has a function of a control unit that controls driving of the liquid ejection system 1.
  • the mechanism unit 26 has a recording unit 31.
  • the mechanism unit 26 also includes a transport device (not shown) that transports the recording medium P in the Y-axis direction, a moving device (not shown) that reciprocates the recording unit 31 along the X-axis, and the like. Yes.
  • the recording unit 31 can reciprocate between the first standby position 32A and the second standby position 32B along the X axis by a moving device.
  • the area between the first standby position 32A and the second standby position 32B is the movable area of the recording unit 31.
  • the recording unit 31 is covered with the housing 6. Thereby, the recording unit 31 can be protected by the housing 6.
  • the ink in the tank 7 is supplied to the recording unit 31 via the ink supply tube 33.
  • the recording unit 31 is provided with a recording head (not shown) which is an example of a liquid ejecting head.
  • the recording head has a nozzle opening (not shown) directed to the recording medium P side.
  • the ink supplied from the tank 7 to the recording unit 31 via the ink supply tube 33 is supplied to the recording head.
  • the ink supplied to the recording unit 31 is ejected as ink droplets from the nozzle opening of the recording head toward the recording medium P.
  • the printer 3 and the ink supply device 4 are described as separate configurations. However, the ink supply device 4 may be included in the configuration of the printer 3.
  • a maintenance device for maintaining the characteristics of the recording head is provided at a location facing the recording head of the recording unit 31.
  • the maintenance device includes a suction device that can suck ink from the recording head. The ink sucked by the suction device from the recording head is absorbed and held by the absorbent material of the waste liquid absorbing unit 28.
  • the waste liquid absorption unit 28 has a function of holding ink discharged from the recording head as waste liquid.
  • the ink droplets are dropped on the recording head of the recording unit 31 at a predetermined position while the recording medium P is transported in the Y-axis direction and the recording unit 31 is reciprocated along the X-axis. Is recorded on the recording medium P.
  • the ink supply device 4 has a plurality (four) of tanks 7.
  • the number of tanks 7 is not limited to four, and three, a number less than three, and a number greater than four may be employed.
  • the direction along the X-axis is not limited to a direction completely parallel to the X-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the X-axis.
  • the direction along the Y-axis is not limited to a direction completely parallel to the Y-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the Y-axis.
  • the direction along the Z-axis is not limited to a direction completely parallel to the Z-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the Z-axis.
  • any axis or plane is not limited to a direction completely parallel to any axis or plane, but may be due to errors, tolerances, etc., except for a direction perpendicular to any axis or plane. Including tilted direction.
  • the ink is not limited to either water-based ink or oil-based ink.
  • the water-based ink may be either an ink having a structure in which a solute such as a dye is dissolved in an aqueous solvent or an ink having a structure in which a dispersoid such as a pigment is dispersed in an aqueous dispersion medium.
  • the oil-based ink may be either one having a configuration in which a solute such as a dye is dissolved in an oil-based solvent or one having a configuration in which a dispersoid such as a pigment is dispersed in an oil-based dispersion medium.
  • sublimation transfer ink can be used as the ink.
  • the sublimation transfer ink is an ink containing a sublimation color material such as a sublimation dye.
  • a sublimation transfer ink is ejected onto a transfer medium by a liquid ejecting apparatus, the transfer medium is brought into contact with the printing material, heated to sublimate the color material, and transferred to the printing material.
  • the substrate is a T-shirt, a smartphone, or the like.
  • the ink includes a sublimable color material, printing can be performed on various printed materials (recording media).
  • the tank 7 is provided with a liquid injection part 34 as shown in FIG.
  • ink can be injected into the tank 7 from the outside of the tank 7 through the liquid injection portion 34.
  • the operator can access the liquid injection part 34 of the tank 7 from the outside of the housing 6 by opening the cover 23 with respect to the housing 6. it can.
  • the surface facing the Y-axis direction is set as the viewing surface 35.
  • the viewing surface 35 faces the window portion 21. The operator can visually recognize the amount of ink in each tank 7 by visually recognizing the viewing surface 35 of the tank 7 through the window portion 21.
  • a cap (not shown) is attached to the liquid injection unit 34 in a state where the liquid ejection system 1 is used for printing.
  • the cap is configured to be detachable from the tank 7.
  • the operator injects ink into the tank 7, he can inject the ink into the liquid injection portion 34 after removing the cap and opening the liquid injection portion 34.
  • the liquid injecting unit 34 faces upward from the horizontal direction in the usage posture.
  • the tank 7 may have a configuration in which an upper limit mark 36, a lower limit mark 37, and the like are added to a viewing surface 35 that can visually recognize the amount of ink contained.
  • an upper limit mark 36 and a lower limit mark 37 are provided for each tank 7. The operator can grasp the amount of ink in the tank 7 using the upper limit mark 36 and the lower limit mark 37 as marks.
  • the upper limit mark 36 indicates a measure of the amount of ink that does not overflow from the liquid injection portion 34 when ink is injected from the liquid injection portion 34.
  • the lower limit mark 37 indicates a measure of the amount of ink when prompting ink injection.
  • the present invention is not limited to the configuration in which both the upper limit mark 36 and the lower limit mark 37 are provided, and a configuration in which only one of the upper limit mark 36 and the lower limit mark 37 is provided in the tank 7 may be employed.
  • the mechanism unit 26 When the liquid ejection system 1 is viewed in plan from the Z-axis direction to the ⁇ Z-axis direction, the mechanism unit 26 is more ⁇ Y than the tank 7, the waste liquid absorption unit 28, and the electric wiring board 29 as shown in FIG. 4. It is arranged in the axial direction. That is, among these components, the mechanism unit 26 is located most in the ⁇ Y axis direction. The tank 7 is arranged in the Y axis direction with respect to the mechanism unit 26.
  • the waste liquid absorption unit 28 is disposed in the Y-axis direction with respect to the mechanism unit 26, and is disposed in the ⁇ Y-axis direction with respect to the tank 7.
  • the tank 7 and the waste liquid absorption unit 28 are arranged along the Y axis in this order from the Y axis direction.
  • the electrical wiring board 29 is arranged in the Y-axis direction with respect to the mechanism unit 26, and is arranged in the ⁇ X-axis direction with respect to the tank 7 and the waste liquid absorption unit 28.
  • the electrical wiring board 29 is disposed on the board tray 38 (Z-axis direction). An area in the ⁇ Z-axis direction of the substrate tray 38 is set as an area of the paper discharge unit 11 (FIG. 3).
  • the position of the liquid injection portion 34 in the tank 7 in the Y-axis direction is offset from the tank 7. That is, in the tank 7, the liquid injection part 34 is arranged at a position offset in the tank 7. And in the tank 7, the side where the liquid injection part 34 is located is defined as the front side. Based on this definition, in the tank 7, as shown in FIG. 3, the surface most positioned in the Y-axis direction is regarded as the front surface 41. And in the tank 7, the visual recognition surface 35 is located in the front surface 41 side. For this reason, in the tank 7, the visual recognition surface 35 corresponds to the front surface 41. The front surface 41 faces the Y axis direction.
  • the tank 7A of Example 1-1 includes a front surface 41, a slope 42, an upper surface 43, a side surface 44, a side surface 45, an upper surface 46, a side surface 47, an upper surface 48, and an upper surface. 49.
  • the front surface 41, the slope 42, the upper surface 43, the side surface 44, the side surface 45, the upper surface 46, the side surface 47, the upper surface 48, and the upper surface 49 are surfaces facing outward in the tank 7A.
  • the front surface 41 is set to the viewing surface 35.
  • the tank 7 ⁇ / b> A has a rear surface 50, a rear surface 51, a side surface 52, and a lower surface 53, as shown in FIG. 6.
  • the rear surface 50, the rear surface 51, the side surface 52, and the lower surface 53 are surfaces facing outward in the tank 7A, respectively.
  • the inclined surface 42 is located in the Z-axis direction of the front surface 41.
  • the front surface 41 extends along the XZ plane.
  • the inclined surface 42 intersects both the XZ plane and the XY plane.
  • the slope 42 intersects the front surface 41 at the end in the ⁇ Z axis direction.
  • the inclined surface 42 is inclined so as to rise in the Z-axis direction from the front surface 41 toward the ⁇ Y-axis direction.
  • the liquid injection part 34 is provided on the slope 42.
  • the upper surface 43 is located in the ⁇ Y axis direction of the slope 42.
  • the upper surface 43 extends along the XY plane.
  • the upper surface 43 faces the Z-axis direction.
  • the upper surface 43 intersects the slope 42 at the end in the Y-axis direction.
  • the slope 42 intersects the upper surface 43 at the end in the Z-axis direction. For this reason, the slope 42 is interposed between the front surface 41 and the upper surface 43.
  • the side surface 44 is located in the X-axis direction of the front surface 41, the slope 42, the upper surface 43, the side surface 45, the upper surface 46, the side surface 47, the upper surface 48, and the upper surface 49.
  • the side surface 44 extends along the YZ plane.
  • the side surface 44 faces the X-axis direction.
  • the side surface 44 intersects the front surface 41, the slope 42, the upper surface 43, the side surface 45, the upper surface 46, the side surface 47, the upper surface 48, and the upper surface 49.
  • the side surface 45 is located in the ⁇ Y axis direction of the upper surface 43.
  • the side surface 45 extends along the XZ plane.
  • the side surface 45 faces the Y axis direction.
  • the side surface 45 intersects the upper surface 43 at the end in the ⁇ Z-axis direction.
  • the upper surface 46 is located in the Z-axis direction of the side surface 45.
  • the upper surface 46 extends along the XY plane.
  • the upper surface 46 faces the Z-axis direction.
  • the upper surface 46 intersects the side surface 45 at the end in the Y-axis direction.
  • the side surface 45 is interposed between the upper surface 43 and the upper surface 46.
  • the upper surface 43 is interposed between the slope 42 and the side surface 45.
  • the side surface 47 is located in the ⁇ Y axis direction of the upper surface 46.
  • the side surface 47 extends along the XZ plane.
  • the side surface 47 faces the Y axis direction.
  • the side surface 47 intersects the upper surface 46 at the end in the ⁇ Z-axis direction.
  • the upper surface 48 is located in the Z-axis direction of the side surface 47.
  • the upper surface 48 extends along the XY plane.
  • the upper surface 48 faces the Z-axis direction.
  • the upper surface 48 intersects the side surface 47 at the end in the Y-axis direction.
  • the upper surface 49 is located in the ⁇ Z-axis direction with respect to the upper surface 48. Further, the upper surface 49 is located in the ⁇ Z-axis direction with respect to the slope 42. Further, the upper surface 49 is located in the ⁇ Y axis direction from the upper surface 48. The upper surface 49 extends along the XY plane. The upper surface 49 faces the Z-axis direction. The upper surface 49 intersects the rear surface 50 (FIG. 6) at the end in the Y-axis direction. With the above configuration, the rear surface 50 shown in FIG. 6 is interposed between the upper surface 48 and the upper surface 49.
  • the rear surface 50 faces the ⁇ Y axis direction.
  • the rear surface 50 extends along the XZ plane.
  • the rear surface 50 is located on the opposite side of the front surface 41 (FIG. 5). For this reason, the front surface 41 and the rear surface 50 have a relationship of mutually opposite surfaces.
  • the rear surface 50 intersects the side surface 44, the upper surface 48, the upper surface 49, and the side surface 52 (FIG. 6) on the opposite side of the front surface 41 (FIG. 5).
  • the rear surface 51 is located more in the ⁇ Y-axis direction than the rear surface 50.
  • the rear surface 51 faces the ⁇ Y axis direction.
  • the rear surface 51 extends along the XZ plane.
  • the rear surface 51 is located in the ⁇ Z axis direction of the upper surface 49.
  • the rear surface 51 intersects the upper surface 49 at the end in the Z-axis direction. For this reason, the upper surface 49 is interposed between the rear surface 50 and the rear surface 51.
  • the rear surface 51 intersects the upper surface 49, the side surface 52, the lower surface 53, and the side surface 44 (FIG. 5).
  • the side surface 52 faces the ⁇ X axis direction.
  • the side surface 52 extends along the YZ plane.
  • the side surface 52 is located on the opposite side of the side surface 44 (FIG. 5).
  • the side surface 52 intersects the front surface 41, the slope 42, the upper surface 43, the side surface 45, the upper surface 46, the side surface 47, the upper surface 48, and the upper surface 49 on the opposite side of the side surface 44 (FIG. 5). Further, the side surface 52 also intersects with the lower surface 53 as shown in FIG.
  • the lower surface 53 faces the ⁇ Z-axis direction as shown in FIG.
  • the lower surface 53 extends along the XY plane.
  • the lower surface 53 is located in the ⁇ Z-axis direction of the rear surface 51, the side surface 52, the front surface 41 (FIG. 5), and the side surface 44.
  • the lower surface 53 intersects the rear surface 51, the side surface 52, the front surface 41 (FIG. 5), and the side surface 44 in the ⁇ Z-axis direction of the rear surface 51, the side surface 52, the front surface 41 (FIG. 5), and the side surface 44.
  • Other planes or curved surfaces may be interposed between them.
  • the surface extending along the XZ plane is not limited to a surface extending completely parallel to the XZ plane, and includes a surface inclined due to an error, tolerance, etc., except for a surface orthogonal to the XZ plane.
  • the surface extending along the YZ plane is not limited to a surface extending completely parallel to the YZ plane, and includes surfaces inclined due to errors, tolerances, etc., except for a surface orthogonal to the YZ plane.
  • the surface extending along the XY plane is not limited to a surface extending completely parallel to the XY plane, and includes surfaces inclined due to errors, tolerances, etc., except for a surface orthogonal to the XY plane.
  • front surface 41, the slope 42, the upper surface 43, the side surface 44, the side surface 45, the upper surface 46, the side surface 47, the upper surface 48, the upper surface 49, the rear surface 50, the rear surface 51, the side surface 52, and the lower surface 53 are limited to flat surfaces. It may not be uneven and a level
  • two surfaces intersect each other means that the two surfaces are not parallel to each other.
  • the extension of one surface and the extension of the other surface intersect even in a positional relationship where they are not in direct contact with each other It is said to intersect.
  • the angle formed by the two intersecting surfaces may be a right angle, an obtuse angle, or an acute angle.
  • an air release portion 54 is provided on the side surface 47 of the tank 7 ⁇ / b> A.
  • the air release portion 54 protrudes from the side surface 47 in the Y-axis direction.
  • the air release part 54 communicates with the inside of the tank 7A.
  • the atmosphere opening part 54 serves as an introduction part of the atmosphere into the tank 7A.
  • a liquid supply unit 55 is provided on the lower surface 53 of the tank 7A.
  • the liquid supply unit 55 protrudes from the lower surface 53 in the ⁇ Z axis direction.
  • the liquid supply unit 55 communicates with the inside of the tank 7A.
  • the ink stored in the tank 7 ⁇ / b> A is supplied to the ink supply tube 33 (FIG. 3) via the liquid supply unit 55.
  • the tank 7 ⁇ / b> A includes a case 61 ⁇ / b> A that is an example of a tank body, a sheet member 62 ⁇ / b> A, a waterproof ventilation film 63, and a sheet member 64.
  • the case 61A is made of, for example, a synthetic resin such as nylon or polypropylene.
  • Each of the sheet member 62A and the sheet member 64 is formed into a film shape with a synthetic resin (for example, nylon, polypropylene, etc.) and has flexibility.
  • the surface of the sheet member 62A that faces in the X-axis direction corresponds to the side surface 44 of the tank 7A.
  • the surface of the sheet member 64 facing the Z-axis direction corresponds to the upper surface 48 of the tank 7A.
  • the sheet member 62A is located in the X-axis direction of the case 61A.
  • the sheet member 64 is located in the Z-axis direction of the case 61A.
  • the waterproof breathable film 63 is interposed between the sheet member 64 and the case 61A.
  • the waterproof breathable film 63 is made of a material having a high waterproof property against liquid, that is, a low liquid permeability and a high breathability, and is formed in a film shape.
  • a recess 65 is formed in the case 61A.
  • the recess 65 is formed in a direction that is recessed in the ⁇ X-axis direction. Moreover, the recessed part 65 is opening toward the X-axis direction.
  • the case 61A is provided with a joint 66. In FIG. 7, the joint 66 is hatched for easy understanding of the configuration.
  • the sheet member 62 ⁇ / b> A is joined to the joining portion 66.
  • the case 61A and the sheet member 62A are joined by welding. When the sheet member 62A is joined to the case 61A, the recess 65 is blocked by the sheet member 62A.
  • a space surrounded by the recess 65 and the sheet member 62 ⁇ / b> A is referred to as a liquid storage portion 68.
  • ink is stored in the liquid storage portion 68 surrounded by the recess 65 and the sheet member 62A.
  • the case 61A includes a wall 70, a wall 71, a wall 72, a wall 73, a wall 74, a wall 75, a wall 76, a wall 77, a wall 78, and a wall 79. , Wall 80 and wall 81.
  • the wall 70 extends along the YZ plane. Note that the surface in the ⁇ X-axis direction of the wall 70 of the case 61A, that is, the surface opposite to the recess 65 side of the wall 70 corresponds to the side surface 52 of the tank 7A shown in FIG.
  • the walls 71 to 81 protrude from the wall 70 in the X-axis direction.
  • the wall 71 intersects the wall 72 at the end in the Z-axis direction.
  • the wall 72 intersects the wall 73 at the end in the Z-axis direction.
  • the wall 73 intersects the wall 74 at the end in the ⁇ Y axis direction.
  • the wall 74 intersects the wall 75 at the end in the Z-axis direction.
  • the end of the wall 75 in the ⁇ Y-axis direction is located between the wall 76 and the wall 78.
  • a gap is provided between the end of the wall 75 in the ⁇ Y-axis direction and the wall 78.
  • the wall 76 intersects the wall 75 at the end in the ⁇ Z-axis direction.
  • the wall 77 is located in the Z-axis direction with respect to the wall 75.
  • the wall 77 intersects the wall 76 at the end in the Y-axis direction.
  • the wall 77 intersects the wall 78 at the end in the ⁇ Y axis direction.
  • the wall 78 intersects the wall 79 at the end in the ⁇ Z axis direction.
  • the wall 79 intersects the wall 80 at the end in the ⁇ Y axis direction.
  • the wall 80 intersects the wall 81 at the end in the ⁇ Z axis direction.
  • the wall 81 intersects the wall 71 at the end in the Y-axis direction.
  • the wall 71 to the wall 81 surround the wall 70 when the case 61A is viewed in plan in the ⁇ X axis direction.
  • the case 61 ⁇ / b> A has a recess 65 with the wall 70 as a bottom.
  • the wall 71 is located most in the Y-axis direction among the walls 70 to 81.
  • the wall 71 extends along the XZ plane.
  • the surface in the Y-axis direction of the wall 71 of the case 61A that is, the surface of the wall 71 opposite to the concave portion 65 side corresponds to the front surface 41 of the tank 7A.
  • the wall 72 is located in the Z-axis direction of the wall 71.
  • the wall 72 is inclined with respect to both the XZ plane and the XY plane.
  • the wall 72 is inclined so as to rise in the Z-axis direction from the wall 71 toward the ⁇ Y-axis direction.
  • the liquid injection part 34 is provided on the wall 72.
  • a surface of the wall 72 of the case 61A on the side opposite to the concave portion 65 corresponds to the inclined surface 42 of the tank 7A.
  • the wall 73 extends along the XY plane.
  • the wall 73 is located in the ⁇ Y axis direction of the wall 72.
  • the surface opposite to the concave portion 65 corresponds to the upper surface 43 of the tank 7A shown in FIG.
  • the wall 74 is located in the Z-axis direction of the wall 73.
  • the wall 74 extends along the XZ plane.
  • a surface of the wall 74 opposite to the recess 65 side corresponds to the side surface 45 of the tank 7A.
  • the wall 75 is located in the ⁇ Y axis direction of the wall 74.
  • the wall 75 extends along the XY plane.
  • the surface opposite to the concave portion 65 corresponds to the upper surface 46 of the tank 7A shown in FIG.
  • the wall 76 is located in the Z-axis direction of the wall 75.
  • the wall 76 extends along the XZ plane.
  • the surface of the wall 76 opposite to the concave portion 65 side corresponds to the side surface 47 of the tank 7A.
  • the wall 77 is located in the ⁇ Y axis direction of the wall 76.
  • the wall 77 extends along the XY plane.
  • the wall 78 is located in the ⁇ Y axis direction of the wall 77.
  • the wall 78 extends along the XZ plane.
  • a surface of the wall 78 opposite to the concave portion 65 side corresponds to the rear surface 50 of the tank 7A shown in FIG.
  • the wall 79 is located in the ⁇ Z axis direction of the wall 78.
  • the wall 79 extends along the XY plane.
  • the wall 78 intersects the wall 79 at the end in the ⁇ Z axis direction, and protrudes from the wall 79 in the Z axis direction.
  • the surface of the wall 79 opposite to the concave portion 65 corresponds to the upper surface 49 of the tank 7A shown in FIG.
  • the wall 80 is located in the ⁇ Y axis direction of the wall 79.
  • the wall 80 extends along the XZ plane.
  • the wall 80 intersects the wall 79 at the end in the Z-axis direction.
  • the wall 80 protrudes from the wall 79 in the ⁇ Z axis direction.
  • the surface on the opposite side of the wall 80 from the recess 65 side corresponds to the rear surface 51 of the tank 7A shown in FIG.
  • the wall 81 is located in the ⁇ Z axis direction of the wall 80 and the wall 71.
  • the wall 81 extends along the XY plane.
  • the wall 81 intersects the wall 80 at the end portion in the ⁇ Y axis direction and intersects the wall 71 at the end portion in the Y axis direction.
  • the surface of the wall 81 opposite to the concave portion 65 side corresponds to the lower surface 53 of the tank 7A shown in FIG.
  • the walls 70 to 81 are not limited to flat walls, and may include irregularities, steps, and the like.
  • a recess 85 is formed on the opposite side of the wall 77 from the recess 65, that is, in the Z-axis direction of the wall 77, as shown in FIG.
  • the recess 85 is formed in a direction that is recessed in the ⁇ Z-axis direction. Further, the recess 85 opens toward the Z-axis direction.
  • the recess 85 includes a wall 77, a wall 76, a wall 70, a wall 78, and a partition wall 86.
  • the wall 76, the wall 70, and the wall 78 protrude from the wall 77 in the Z-axis direction.
  • the partition wall 86 is provided so as to protrude from the wall 77 in the Z-axis direction and extends along the YZ plane.
  • the partition wall 86 intersects the wall 76 at the end portion in the Y-axis direction and intersects the wall 78 at the end portion in the ⁇ Y-axis direction.
  • the wall 76, the wall 70, the wall 78, and the partition wall 86 surround the wall 77.
  • the case 61A is formed with a recess 85 with the wall 77 as a bottom.
  • the ends of the wall 76, the wall 70, the wall 78, and the partition wall 86 in the Z-axis direction are set as joints 88.
  • the sheet member 64 (FIG. 7) is joined to the joining portion 88.
  • the case 61A and the sheet member 64 are joined by welding.
  • the recess 85 (FIG. 9) is blocked by the sheet member 64.
  • a space surrounded by the recess 85 and the sheet member 64 constitutes an air chamber 91.
  • a through-hole 92 is formed in the wall 77.
  • the through hole 92 penetrates the wall 77 along the Z axis. For this reason, the recess 65 and the recess 85 communicate with each other through the through hole 92.
  • a junction 93 is provided around the through hole 92 in the Z-axis direction of the wall 77.
  • the joint portion 93 surrounds the through hole 92.
  • a waterproof breathable film 63 (FIG. 7) is joined to the joining portion 93. In this embodiment, the joining part 93 and the waterproof breathable film 63 are joined by welding.
  • the waterproof breathable film 63 has a size and shape that covers the through hole 92.
  • a partition wall 95 and a partition wall 96 are provided in the recess 65.
  • the partition wall 95 and the partition wall 96 each extend along the XZ plane.
  • the partition wall 95 and the partition wall 96 are located between the wall 78 and the wall 74.
  • the partition wall 95 is located in the Y-axis direction with respect to the wall 78.
  • the partition wall 96 is located in the Y-axis direction with respect to the partition wall 95.
  • the partition wall 95 and the partition wall 96 protrude from the wall 70 in the X-axis direction.
  • the protruding amounts of the partition walls 95 and 96 from the wall 70 are set to be equivalent to the protruding amounts of the walls 71 to 81 from the wall 70.
  • the ends of the partition walls 95 and 96 in the X-axis direction are set as joints 66 in the same manner as the end portions of the walls 71 to 81 in the X-axis direction.
  • the end of the partition wall 95 in the Z-axis direction is connected to the end of the wall 75 in the ⁇ Y-axis direction. That is, the partition wall 95 intersects the end portion of the wall 75 in the ⁇ Y axis direction at the end portion in the Z axis direction.
  • a gap is provided between the end of the partition wall 95 in the ⁇ Z-axis direction and the wall 79. That is, the end of the partition wall 95 in the ⁇ Z-axis direction is separated from the wall 79.
  • An end portion of the partition wall 96 in the ⁇ Z-axis direction is connected to an end portion of the wall 79 in the Y-axis direction.
  • the partition wall 96 intersects the Y-axis direction end portion of the wall 79 at the ⁇ Z-axis direction end portion.
  • a gap is provided between the end of the partition wall 96 in the Z-axis direction and the wall 75. That is, the end in the Z-axis direction of the partition wall 96 is separated from the wall 75.
  • a space surrounded by the wall 70, the wall 75, the wall 76, the wall 77, the wall 78, and the sheet member 62A is referred to as a buffer chamber 97.
  • a space surrounded by the gap between the wall 78 and the partition wall 95, the clearance between the partition wall 95 and the partition wall 96, and the sheet member 62A is called a flow path 98 through which air and ink can flow.
  • the buffer chamber 97 communicates with the recess 65 through the flow path 98.
  • the function of the buffer chamber 97 includes a function of retaining the ink that has flowed back through the flow path 98 from the liquid storage portion 68 (recess 65).
  • the atmosphere opening portion 54 penetrates the wall 76 along the Y axis and communicates with the recess 85. Therefore, in the tank 7 ⁇ / b> A, the liquid storage unit 68 communicates with the outside of the tank 7 ⁇ / b> A via the flow path 98, the buffer chamber 97, the atmospheric chamber 91, and the atmospheric release unit 54. As a result, the tank 7A is configured such that the atmosphere outside the tank 7A can be introduced into the liquid storage portion 68 via the atmosphere opening portion 54, the atmosphere chamber 91, and the flow path 98.
  • the atmosphere opening portion 54, the atmosphere chamber 91, the buffer chamber 97, and the flow path 98 constitute an atmosphere introduction portion 99.
  • the path of the air introduction portion 99 meanders by the partition wall 95 and the partition wall 96 in the flow path 98. Thereby, when heading from the liquid storage part 68 to the atmosphere release part 54, it reaches the atmosphere release part 54 through a meandering path.
  • the meandering path tends to prevent evaporation of the liquid component of the ink in the liquid container 68.
  • the tank 7A having the above configuration has a form in which a part of the liquid storage portion 68 protrudes from the rear surface 50 in the ⁇ Y-axis direction.
  • a portion of the tank 7A that protrudes in the ⁇ Y-axis direction from the rear surface 50 is referred to as a protruding housing portion 101A.
  • the protruding housing portion 101A of the tank 7A is located in the ⁇ Z-axis direction of the waste liquid absorption unit 28 as shown in FIG.
  • At least a part of the tank 7A other than the liquid injection portion 34 is an area of the waste liquid absorption unit 28. It overlaps with.
  • at least a part of the tank 7 ⁇ / b> A other than the liquid injection part 34 is positioned vertically below the waste liquid absorption unit 28.
  • Example 1-2 As shown in FIG. 12, the tank 7B of Example 1-2 has a projecting housing portion 101B. In the tank 7B of the embodiment 1-2, the length along the Y axis of the protruding housing portion 101B is longer than the protruding housing portion 101A in the embodiment 1-1. Except for this, the tank 7B of Example 1-2 has the same configuration as the tank 7A of Example 1-1. Therefore, in the following description, the same reference numerals as those in the embodiment 1-1 are given to the same configurations as those in the embodiment 1-1 among the configurations of the tank 7B in the embodiment 1-2, and detailed description thereof is omitted.
  • the tank 7B has a case 61B and a sheet member 62B. In the tank 7B, the dimensions and dimensions of the case 61B and the sheet member 62B are changed from those in Example 1-1, so that the dimensions of the protruding accommodating part 101B are changed from the dimensions of the protruding accommodating part 101A.
  • the protruding accommodating portion 101B protrudes in the ⁇ Y-axis direction from the region overlapping the waste liquid absorbing unit 28.
  • the protruding housing portion 101 ⁇ / b> B extends in the ⁇ Y-axis direction beyond the area overlapping the waste liquid absorption unit 28 and reaches the area overlapping the mechanism unit 26. That is, when the mechanism unit 26 of the liquid ejecting system 1 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the tank 7B other than the liquid injection portion 34 is in the region of the mechanism unit 26. overlapping. In other words, in the usage posture, at least a part of the tank 7 ⁇ / b> B other than the liquid injection portion 34 is positioned vertically below the mechanism unit 26.
  • the protrusion accommodating portion 101B of the tank 7B reaches an area of the mechanism unit 26 that overlaps the movable area of the recording portion 31 as shown in FIG. Further, in the example shown in FIG. 14, the protruding accommodating portion 101 ⁇ / b> B of the tank 7 ⁇ / b> B reaches the area of the recording unit 31 that overlaps the recording head.
  • Example 1-3 As shown in FIG. 15, the tank 7C of Example 1-3 has a protruding housing portion 101C. In the tank 7C of Example 1-3, the length of the protruding housing part 101C along the Y axis is longer than that of the protruding housing part 101B in Example 1-2. Except for this, the tank 7C of Example 1-3 has the same configuration as the tank 7A of Example 1-1 and the tank 7B of Example 1-2. Therefore, in the following, the configuration of the tank 7C of Example 1-3 that is the same as that of Example 1-1 or Example 1-2 is the same as that of Example 1-1 or Example 1-2. Reference numerals are assigned and detailed description is omitted.
  • the tank 7C has a case 61C and a sheet member 62C.
  • the dimensions of the protruding housing portion 101C are changed from the dimensions of the protruding housing portion 101B.
  • the protruding accommodating portion 101C protrudes in the ⁇ Y-axis direction from the region overlapping the waste liquid absorbing unit 28.
  • the protruding housing portion 101 ⁇ / b> C extends in the ⁇ Y-axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26. That is, when the mechanism unit 26 of the liquid ejecting system 1 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the tank 7C other than the liquid injection part 34 is in the region of the mechanism unit 26. overlapping. In other words, in the usage posture, at least a part of the tank 7 ⁇ / b> C other than the liquid injection portion 34 is positioned vertically below the mechanism unit 26.
  • the protruding housing portion 101C of the tank 7C exceeds the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31, as shown in FIG. Further, in the example shown in FIG. 17, the protruding housing portion 101 ⁇ / b> C of the tank 7 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26.
  • Example 1-3 it is easier to increase the amount of ink that can be accommodated in the tank 7C while reducing an increase in the projected area (footprint) of the mechanism unit 26 and the tank 7C in plan view. Therefore, it is easier to reduce the increase in size of the liquid ejection system 1.
  • Example 1-1 to Example 1-3 the amount of ink that can be stored in the tank 7 is increased while reducing the projected area (footprint) of the liquid ejecting system 1 in plan view. Cheap. For this reason, for example, it is possible to avoid increasing the amount of ink that can be stored in the tank 7 by expanding the tank 7 in the X-axis direction or expanding the tank 7 in the Y-axis direction. For example, in the configuration in which the tank 7 is expanded in the X-axis direction, the tank 7 may protrude from the mechanism unit 26 in the X-axis direction when the liquid ejection system 1 is viewed in plan in the ⁇ Z-axis direction.
  • the protrusion accommodating portion 101A, the protrusion accommodating portion 101B, and the protrusion accommodating portion 101C are located in the ⁇ Z-axis direction with respect to the waste liquid absorbing unit 28.
  • the positions of the protrusion accommodating portion 101A, the protrusion accommodating portion 101B, and the protrusion accommodating portion 101C are not limited to this, and may be positioned in the Z-axis direction with respect to the waste liquid absorption unit 28, for example.
  • the positions of the protruding housing portion 101A, the protruding housing portion 101B, and the protruding housing portion 101C in the tank 7 may be set to be shifted in the Z-axis direction.
  • the protruding housing part 101B and the protruding housing part 101C are located in the ⁇ Z-axis direction with respect to the mechanism unit 26.
  • the position of the protrusion accommodating part 101B and the protrusion accommodating part 101C is not limited to this, For example, you may be located in the Z-axis direction rather than the mechanism unit 26. In this configuration, the positions of the protruding housing portion 101B and the protruding housing portion 101C in the tank 7 may be set to be shifted in the Z-axis direction.
  • Example 1-4 In the tank 7D of Example 1-4, as shown in FIG. 18, the air introduction part 99 protrudes from the rear surface 50 in the ⁇ Y-axis direction. In Example 1-4, the buffer chamber 97 protrudes in the ⁇ Y-axis direction from the rear surface 50. That is, in Example 1-4, the buffer chamber 97 is expanded in the ⁇ Y axis direction. Thereby, in Example 1-4, the air introduction part 99 is expanded. Except for this, the tank 7D of Example 1-4 has the same configuration as the tank 7A of Example 1-1. For this reason, in the following, the configuration similar to that of Example 1-1 among the configurations of tank 7D of Example 1-4 will be assigned the same reference numerals as in Example 1-1, and detailed description thereof will be omitted.
  • the tank 7D includes a case 61D and a sheet member 62D.
  • the atmosphere introduction unit 99 is expanded by changing the shapes and dimensions of the case 61D and the sheet member 62D from Example 1-1.
  • a portion of the atmosphere introduction portion 99 of the tank 7D that protrudes in the ⁇ Y-axis direction from the rear surface 50 is referred to as a protrusion introduction portion 103A.
  • the case 61D has a wall 105, a wall 106, and a wall 107.
  • Each of the walls 105 and 107 extends along the XY plane.
  • the wall 105 is located in the Z-axis direction of the upper surface 49 and faces the upper surface 49.
  • the wall 105 protrudes from the rear surface 50 in the ⁇ Y axis direction.
  • the wall 105 intersects the rear surface 50 at the end in the Y-axis direction.
  • the wall 107 is located in the Z-axis direction with respect to the wall 105.
  • the wall 106 extends along the XZ plane.
  • the wall 106 is located in the ⁇ Y axis direction from the rear surface 50.
  • the wall 106 intersects the wall 107 at the end in the Z-axis direction and intersects the wall 105 at the end in the ⁇ Z-axis direction.
  • a part of the wall 70 protrudes from the rear surface 50 in the ⁇ Y axis direction. Further, a part of the sheet member 62D also protrudes in the ⁇ Y-axis direction from the rear surface 50.
  • the wall 105, the wall 106, and the wall 107 intersect with a region of the wall 70 that protrudes in the ⁇ Y-axis direction from the rear surface 50 at the end portion in the ⁇ X-axis direction.
  • a region surrounded by the wall 105, the wall 106, the wall 107, the region of the wall 70 that protrudes in the ⁇ Y-axis direction from the rear surface 50, and the sheet member 62 ⁇ / b> D constitutes the protruding introduction portion 103 ⁇ / b> A.
  • the protruding introduction portion 103A of the tank 7D is located in the Z-axis direction of the waste liquid absorption unit 28 as shown in FIG. That is, when the mechanism unit 26 of the liquid ejection system 1 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the air introduction part 99 of the tank 7D overlaps the region of the waste liquid absorption unit 28. . In other words, in the use posture, at least a part of the air introduction part 99 of the tank 7 ⁇ / b> D is located vertically above the waste liquid absorption unit 28.
  • Example 1-5 As shown in FIG. 20, the tank 7E of Example 1-5 has a protruding introduction portion 103B. In the tank 7E of Example 1-5, the length of the protruding introduction part 103B along the Y axis is longer than that of the protruding introduction part 103A in Example 1-4. Except for this, the tank 7E of Example 1-5 has the same configuration as the tank 7D of Example 1-4. For this reason, in the following, the same configurations as in the embodiment 1-4 among the configurations of the tank 7E in the embodiment 1-5 are denoted by the same reference numerals as those in the embodiment 1-4, and detailed description thereof is omitted.
  • the tank 7E has a case 61E and a sheet member 62E.
  • the shape and dimensions of the case 61E and the sheet member 62E are changed from those in Embodiment 1-4, whereby the dimensions of the protrusion introduction part 103B are changed from the dimensions of the protrusion introduction part 103A.
  • the protruding introduction portion 103B protrudes in the ⁇ Y-axis direction from the region overlapping the waste liquid absorption unit 28.
  • the projecting introduction portion 103B extends in the ⁇ Y axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26. That is, when the mechanism unit 26 of the liquid ejection system 1 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the air introduction portion 99 of the tank 7E overlaps the region of the mechanism unit 26. In other words, at least a part of the air introduction part 99 of the tank 7E is positioned vertically above the mechanism unit 26 in the use posture.
  • the projecting and introducing portion 103B of the tank 7E reaches a region of the mechanism unit 26 that overlaps the movable region of the recording unit 31, as shown in FIG. Further, in the example shown in FIG. 22, the protruding introduction portion 103 ⁇ / b> B of the tank 7 ⁇ / b> E reaches the area of the recording unit 31 that overlaps the recording head.
  • Example 1-6 As shown in FIG. 23, the tank 7F of Example 1-6 has a protruding introduction part 103C. In the tank 7F of Example 1-6, the length of the protrusion introduction part 103C along the Y axis is longer than that of the protrusion introduction part 103B in Example 1-5. Except for this, the tank 7F of Example 1-6 has the same configuration as the tank 7D of Example 1-4 and the tank 7E of Example 1-5. Therefore, in the following, the configuration of the tank 7F of Example 1-6 that is the same as that of Example 1-4 or Example 1-5 is the same as that of Example 1-4 or Example 1-5. Reference numerals are assigned and detailed description is omitted.
  • the tank 7F has a case 61F and a sheet member 62F.
  • the shape and dimensions of the case 61F and the sheet member 62F are changed from those of Example 1-5, whereby the dimensions of the protrusion introduction part 103C are changed from the dimensions of the protrusion introduction part 103B.
  • the protruding introduction portion 103C protrudes in the ⁇ Y-axis direction from the region overlapping the waste liquid absorption unit 28.
  • the protruding introduction part 103C extends in the ⁇ Y-axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26. That is, when the mechanism unit 26 of the liquid ejecting system 1 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the atmosphere introduction unit 99 of the tank 7F overlaps the region of the mechanism unit 26. In other words, at least a part of the air introduction part 99 of the tank 7F is positioned vertically above the mechanism unit 26 in the use posture.
  • the projecting and introducing portion 103C of the tank 7F exceeds the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31, as shown in FIG. Further, in the example shown in FIG. 25, the protruding introduction portion 103 ⁇ / b> C of the tank 7 ⁇ / b> F extends over a region along the Y axis of the mechanism unit 26.
  • Example 1-6 it is easier to increase the amount of ink that can be accommodated in the tank 7F while reducing an increase in the projected area (footprint) of the mechanism unit 26 and the tank 7F in plan view. Therefore, it is easier to reduce the increase in size of the liquid ejection system 1.
  • Easy to increase the amount for this reason, for example, it is possible to avoid increasing the amount of ink that can be stored in the buffer chamber 97 of the tank 7 by expanding the tank 7 in the X-axis direction or expanding the tank 7 in the Y-axis direction.
  • the tank 7 may protrude from the mechanism unit 26 in the X-axis direction when the liquid ejection system 1 is viewed in plan in the ⁇ Z-axis direction.
  • the protrusion introduction part 103A, the protrusion introduction part 103B, and the protrusion introduction part 103C are located in the Z-axis direction with respect to the waste liquid absorption unit 28.
  • the positions of the protrusion introduction part 103A, the protrusion introduction part 103B, and the protrusion introduction part 103C are not limited to this, and may be located in the ⁇ Z-axis direction with respect to the waste liquid absorption unit 28, for example.
  • the positions of the protrusion introduction part 103A, the protrusion introduction part 103B, and the protrusion introduction part 103C in the tank 7 may be set to be shifted in the ⁇ Z axis direction.
  • the protrusion introduction part 103B and the protrusion introduction part 103C are located in the Z-axis direction relative to the mechanism unit 26.
  • the positions of the protrusion introduction part 103B and the protrusion introduction part 103C are not limited to this, and may be located in the ⁇ Z-axis direction with respect to the mechanism unit 26, for example.
  • the positions of the protrusion introduction part 103B and the protrusion introduction part 103C in the tank 7 may be set to be shifted in the ⁇ Z axis direction.
  • the configuration in which the protrusion introduction portion 103A, the protrusion introduction portion 103B, and the protrusion introduction portion 103C are applied to the tank 7A of Embodiment 1-1 is exemplified.
  • the configuration of the tank 7 is not limited to these.
  • the configuration of the tank 7 includes the tank 7B of the embodiment 1-2 and the tank 7C of the embodiment 1-3, the protrusion introduction portion 103A, the protrusion introduction portion 103B, and the protrusion in the embodiments 1-4 to 1-6.
  • a configuration to which the introduction unit 103C is applied can also be adopted.
  • An example in which the protrusion introduction portion 103A, the protrusion introduction portion 103B, and the protrusion introduction portion 103C in the embodiments 1-4 to 1-6 are applied to the tank 7B and the tank 7C will be described below.
  • Example 1--7 The tank 7G of Example 1-7 has a configuration in which the protruding introduction part 103A in Example 1-4 is applied to the tank 7B of Example 1-2. Except for this, Example 1-7 has the same configuration as that of Example 1-2 or Example 1-4. In the following, the same configurations as those in the embodiment 1-2 and the embodiment 1-4 are denoted by the same reference numerals as those in the embodiment 1-2 and the embodiment 1-4, and detailed description thereof is omitted.
  • the tank 7G has a protruding housing portion 101B and a protruding introduction portion 103A.
  • the protrusion accommodating portion 101B extends in the ⁇ Y-axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26. Further, the protrusion introduction portion 103 ⁇ / b> A overlaps the region of the waste liquid absorption unit 28.
  • Example 1-7 the same effects as in Example 1-2 and Example 1-4 are obtained.
  • Example 1-8 The tank 7H of Example 1-8 has a configuration in which the protruding introduction part 103B in Example 1-5 is applied to the tank 7B of Example 1-2. Except for this, Example 1-8 has the same configuration as Example 1-2 and Example 1-5. In the following, the same configurations as those in the embodiment 1-2 and the embodiment 1-5 are denoted by the same reference numerals as those in the embodiment 1-2 and the embodiment 1-5, and detailed description thereof is omitted.
  • the tank 7H has the protrusion accommodating part 101B and the protrusion introduction part 103B, as shown in FIG.
  • the protrusion accommodating portion 101B extends in the ⁇ Y-axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26.
  • the protrusion introducing portion 103B extends in the ⁇ Y axis direction beyond the region overlapping the waste liquid absorption unit 28, and reaches the region overlapping the mechanism unit 26.
  • Example 1-8 the same effect as in Example 1-2 or Example 1-5 can be obtained.
  • Example 1-9 The tank 7J of Example 1-9 has a configuration in which the protruding introduction portion 103C in Example 1-6 is applied to the tank 7B of Example 1-2. Except for this, Example 1-9 has the same configuration as that of Example 1-2 or Example 1-6.
  • Example 1-2 and the embodiment 1-6 the same components as those in the embodiment 1-2 and the embodiment 1-6 are denoted by the same reference numerals as those in the embodiment 1-2 and the embodiment 1-6, and detailed description thereof is omitted.
  • the tank 7 ⁇ / b> J has a protruding housing portion 101 ⁇ / b> B and a protruding introduction portion 103 ⁇ / b> C.
  • the protrusion accommodating portion 101B extends in the ⁇ Y-axis direction beyond the region overlapping the waste liquid absorption unit 28 and reaches the region overlapping the mechanism unit 26.
  • the projecting introduction portion 103 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26 beyond the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31.
  • Example 1-9 the same effect as in Example 1-2 or Example 1-6 can be obtained.
  • Example 1-10 The tank 7K of Example 1-10 has a configuration in which the protruding introduction portion 103A in Example 1-4 is applied to the tank 7C of Example 1-3. Except for this, Example 1-10 has the same configuration as Example 1-3 and Example 1-4. In the following description, the same configurations as those in Embodiments 1-3 and 1-4 are denoted by the same reference numerals as those in Embodiments 1-3 and 1-4, and detailed description thereof is omitted.
  • the tank 7K has a protruding housing portion 101C and a protruding introduction portion 103A.
  • the protruding housing portion 101 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26 beyond the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31. Further, the protrusion introduction portion 103 ⁇ / b> A overlaps the region of the waste liquid absorption unit 28.
  • Example 1-10 the same effect as in Example 1-3 or Example 1-4 can be obtained.
  • Example 1-11 The tank 7L of Example 1-11 has a configuration in which the protruding introduction part 103B in Example 1-5 is applied to the tank 7C of Example 1-3. Except for this, Example 1-11 has the same configuration as Example 1-3 and Example 1-5. In the following description, the same configurations as those in Embodiment 1-3 and Embodiment 1-5 are denoted by the same reference numerals as those in Embodiment 1-3 and Embodiment 1-5, and detailed description thereof is omitted.
  • the tank 7L has a protruding housing portion 101C and a protruding introduction portion 103B, as shown in FIG.
  • the protruding housing portion 101 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26 beyond the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31. Further, the protrusion introducing portion 103B extends in the ⁇ Y axis direction beyond the region overlapping the waste liquid absorption unit 28, and reaches the region overlapping the mechanism unit 26.
  • Example 1-11 the same effect as in Example 1-3 or Example 1-5 can be obtained.
  • Example 1-12 The tank 7M of Example 1-12 has a configuration in which the protruding introduction part 103C in Example 1-6 is applied to the tank 7C of Example 1-3. Except for this, Example 1-12 has the same configuration as that of Example 1-3 or Example 1-6. In the following description, the same configurations as those of Embodiments 1-3 and 1-6 are denoted by the same reference numerals as those of Embodiments 1-3 and 1-6, and detailed description thereof is omitted.
  • the tank 7 ⁇ / b> M has a protruding housing portion 101 ⁇ / b> C and a protruding introduction portion 103 ⁇ / b> C.
  • the protruding housing portion 101 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26 beyond the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31.
  • the projecting introduction portion 103 ⁇ / b> C extends over a region along the Y axis of the mechanism unit 26 beyond the region of the mechanism unit 26 that overlaps the movable region of the recording unit 31.
  • Example 1-12 the same effect as in Example 1-3 or Example 1-6 can be obtained.
  • the volume of the region where the buffer chamber 97 and the flow path 98 are combined in the air introduction section 99 is equal to the volume of the liquid storage section 68 or the liquid storage section.
  • the volume of the portion 68 is preferably larger. According to this configuration, for example, even if the ink in the liquid storage portion 68 flows into the air introduction portion 99, the ink that has flowed in can be retained in the air introduction portion 99. It is easier to avoid leaking out of the tank 7 through the introduction part 99.
  • the air introduction part 99 is configured as a part of the tank 7, respectively. For this reason, the air introduction part 99 is configured integrally with the tank 7.
  • the structure of the air introduction part 99 is not limited to this. At least a part of the air introduction part 99 can be configured to be separable from the tank 7. An example in which a part of the air introduction unit 99 is configured to be separable from the tank 7 will be described below as Example 1-13.
  • Example 1-13 In Example 1-13, as shown in FIG. 32 which is a side view schematically showing the liquid ejecting system 1, the tank 7N and the air introduction part 99A are configured separately from each other. In the usage posture of the liquid ejecting system 1, a part of the tank 7 ⁇ / b> N other than the liquid injection part 34 overlaps the region of the mechanism unit 26. In the example shown in FIG. 32, a part of the tank 7N other than the liquid injection portion 34 is partly located below the mechanism unit 26.
  • the air introduction part 99A is located in the Z-axis direction relative to the mechanism unit 26. At least a part of the air introduction portion 99A overlaps the area of the mechanism unit 26. In the example shown in FIG. 32, a part of the air introduction part 99A is positioned vertically above the mechanism unit 26.
  • the liquid container 68 of the tank 7N and the air introduction part 99A are connected via a connection part 111 which is an example of a connection part. That is, the liquid storage portion 68 of the tank 7N and the air introduction portion 99A communicate with each other via the connection portion 111. Thereby, air can be introduced into the liquid storage portion 68 of the tank 7 via the air introduction portion 99A and the connection portion 111.
  • the connecting portion 111 is located outside the mechanism unit 26. Thereby, the connection part 111 can be arrange
  • the arrangement of the connecting portion 111 is not limited to the outside of the mechanism unit 26. As the arrangement of the connecting portion 111, an arrangement passing through the inside of the mechanism unit 26 may be employed as long as it is outside the path of change in the relative position between the recording head and the recording medium P.
  • the tank 7N and the air introduction part 99A can be separated from each other by removing the connection by the connection part 111 between the tank 7N and the air introduction part 99A.
  • the atmosphere introduction unit 99 can be added to the tank 7 or the atmosphere introduction unit 99 can be expanded.
  • the tank 7N and the air introduction part 99A are connected via the connection part 111, the position of the air introduction part 99A with respect to the tank 7N can be easily changed. Thereby, the freedom degree of the position of the air introduction part 99A with respect to the tank 7N can be raised.
  • connection portion 111 by adopting a flexible tube as the connection portion 111, it is possible to easily increase the degree of freedom of the piping path of the connection portion 111. Thereby, it is possible to facilitate piping in a narrow space between the mechanism unit 26 and the housing 6 of the liquid ejecting system 1 or a narrow space in the mechanism unit 26.
  • Example 1-4 to Example 1-13 in the first embodiment portions of the atmosphere introduction unit 99 and the atmosphere introduction unit 99A that are located in the Z-axis direction from the mechanism unit 26 are shown in FIG.
  • a configuration in which the scanner unit 5 is positioned in the ⁇ Z-axis direction can be employed.
  • a portion of the atmosphere introduction unit 99 or the atmosphere introduction unit 99 ⁇ / b> A that overlaps the region of the mechanism unit 26 is positioned vertically below the scanner unit 5.
  • Examples 1-4 to 1-12 in the first embodiment portions of the air introduction portion 99 and the air introduction portion 99A that are located in the Z-axis direction from the mechanism unit 26 are shown in FIG.
  • a configuration located on the side of the scanner unit 5 can also be adopted.
  • the portion of the atmosphere introduction unit 99 and the atmosphere introduction unit 99 ⁇ / b> A that overlaps the region of the mechanism unit 26 is positioned beside the scanner unit 5. According to this configuration, it is easy to reduce the increase in the thickness of the liquid ejecting system 1. Therefore, it is easy to reduce the increase in size of the liquid ejection system 1.
  • the liquid ejecting system 201 in the present embodiment includes a printer 203 that is an example of a liquid ejecting apparatus, an ink supply device 204 that is an example of a liquid supplying apparatus, and a scanner unit 205. Yes.
  • the printer 203 has a housing 206.
  • a housing 206 forms an outer shell of the printer 203.
  • a mechanism unit (described later) of the printer 203 is accommodated in the housing 206.
  • the ink supply device 204 includes a housing 207 that is an example of a liquid container mounting portion, and a plurality (two or more than two) of tanks 210. In the present embodiment, four tanks 210 are provided.
  • the casing 206, the casing 207, and the scanner unit 205 constitute an outer shell of the liquid ejecting system 201.
  • As the liquid ejecting system 201 a configuration in which the scanner unit 205 is omitted may be employed.
  • the tank 210 is an example of a liquid container.
  • the liquid ejecting system 201 can perform printing on a recording medium P such as recording paper with ink that is an example of a liquid.
  • FIG. 35 illustrates a state in which the liquid ejecting system 201 is arranged on the XY plane defined by the X axis and the Y axis.
  • the state when the liquid ejecting system 201 is arranged on the XY plane in a state where the XY plane coincides with a horizontal plane is the use state of the liquid ejecting system 201.
  • the posture of the liquid ejecting system 201 when the liquid ejecting system 201 is arranged on the XY plane that matches the horizontal plane is referred to as a usage posture of the liquid ejecting system 201.
  • the components and units are incorporated into the liquid ejecting system 201 ( Means the X-axis, the Y-axis, and the Z-axis in the mounted state.
  • the posture of each component or unit in the usage posture of the liquid ejection system 201 is referred to as the usage posture of the component or unit.
  • the liquid ejecting system 201, its components, units, and the like will be described in their respective use postures unless otherwise specified.
  • the Z axis is an axis orthogonal to the XY plane.
  • the Z-axis direction is a vertically upward direction.
  • the ⁇ Z axis direction is the vertically downward direction in FIG.
  • the direction of the arrow indicates the + (positive) direction
  • the direction opposite to the direction of the arrow indicates the-(negative) direction.
  • the four tanks 210 described above are aligned along the Y axis.
  • the Y-axis direction can also be defined as the direction in which the four tanks 210 are arranged.
  • the four tanks 7 are arranged along the X axis. In this respect, the first embodiment and the second embodiment are different from each other.
  • the printer 203 and the scanner unit 205 are overlapped with each other.
  • the scanner unit 205 is positioned vertically above the printer 203.
  • the scanner unit 205 is a flat bed type and has an image sensor (not shown) such as an image sensor.
  • the scanner unit 205 can read an image or the like recorded on a medium such as paper as image data via an image sensor. Therefore, the scanner unit 205 functions as an image reading device.
  • the scanner unit 205 is configured to be rotatable with respect to the printer 203.
  • the scanner unit 205 also has a function as a lid of the printer 203. The operator can rotate the scanner unit 205 with respect to the printer 203 by lifting the scanner unit 205 in the Z-axis direction. Accordingly, the scanner unit 205 that functions as a lid of the printer 203 can be opened with respect to the printer 203.
  • the printer 203 is provided with a paper discharge unit 221.
  • the recording medium P is discharged from the paper discharge unit 221.
  • a surface on which the paper discharge unit 221 is provided is a front surface 222.
  • the liquid ejection system 201 includes an upper surface 223 that intersects the front surface 222 and side portions 224 that intersect the front surface 222 and the upper surface 223.
  • the ink supply device 204 is provided on the side portion 224.
  • a window 225 is provided in the housing 207.
  • the window portion 225 is provided in a side portion 228 that intersects the front surface 226 and the upper surface 227 in the housing 207.
  • the window part 225 is light transmissive. And the four tanks 210 mentioned above are provided in the position which overlaps with the window part 225. FIG. For this reason, an operator who uses the liquid ejection system 201 can visually recognize the four tanks 210 through the window 225.
  • the window 225 is provided as an opening formed in the housing 207. The operator can visually recognize the four tanks 210 through the window 225 which is an opening.
  • the window part 225 is not limited to opening, For example, you may be comprised with the member which has a light transmittance.
  • At least a part of the portion facing each window 210 of the tank 210 is light transmissive.
  • the ink in the tank 210 can be visually recognized from the part of each tank 210 having light transmittance. Therefore, the operator can visually recognize the amount of ink in each tank 210 by visually recognizing the four tanks 210 through the window portion 225. That is, in the tank 210, at least a part of the portion facing the window portion 225 can be used as a visual recognition portion that can visually recognize the amount of ink.
  • the printer 203 has a mechanism unit 203A as shown in FIG.
  • the mechanism unit 203A has a recording unit 229.
  • the recording unit 229 is accommodated in the housing 206.
  • the recording unit 229 performs recording with ink, which is an example of a liquid, on a recording medium P that is transported in the Y-axis direction by a transport device (not shown).
  • a transport device (not shown) intermittently transports the recording medium P such as recording paper in the Y-axis direction.
  • the recording unit 229 is configured to be capable of reciprocating along the X axis by a moving device (not shown).
  • the ink supply device 204 supplies ink to the recording unit 229.
  • the ink supply device 204 protrudes outside the housing 206.
  • the recording unit 229 is housed in the housing 206. Thereby, the recording unit 229 can be protected by the housing 206.
  • the direction along the X-axis is not limited to a direction completely parallel to the X-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the X-axis.
  • the direction along the Y-axis is not limited to a direction completely parallel to the Y-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the Y-axis.
  • the direction along the Z-axis is not limited to a direction completely parallel to the Z-axis, and includes directions inclined due to errors, tolerances, etc., except for a direction orthogonal to the Z-axis.
  • any axis or plane is not limited to a direction completely parallel to any axis or plane, but may be due to errors, tolerances, etc., except for a direction perpendicular to any axis or plane. Including tilted direction.
  • the ink supply device 204 has a tank 210 which is an example of a liquid container.
  • the ink supply device 204 has a plurality of (four in the present embodiment) tanks 210.
  • the plurality of tanks 210 protrude outside the housing 206 of the printer 203.
  • the plurality of tanks 210 are accommodated in the housing 207. Thereby, the tank 210 can be protected by the housing 207.
  • the housing 207 protrudes from the housing 206.
  • the ink supply device 204 has a plurality (four) of tanks 210.
  • the number of tanks 210 is not limited to four, and three, less than three, and more than four may be employed.
  • the plurality of tanks 210 are configured separately from each other.
  • the configuration of the tank 210 which is an example of the liquid container is not limited to this.
  • a configuration of the liquid container a configuration in which a plurality of tanks 210 are integrated to form one liquid container may be employed.
  • a single liquid container is provided with a plurality of liquid containers.
  • the plurality of liquid storage portions are individually partitioned from each other and configured to store different types of liquids. In this case, for example, different color inks can be individually stored in the plurality of liquid storage portions.
  • an ink supply tube 231 is connected to each tank 210.
  • the ink in the tank 210 is supplied from the ink supply device 204 to the recording unit 229 via the ink supply tube 231.
  • the recording unit 229 is provided with a recording head (not shown) that is an example of a liquid ejecting head.
  • the recording head has a nozzle opening (not shown) directed to the recording medium P side.
  • the ink supplied from the ink supply device 204 to the recording unit 229 via the ink supply tube 231 is supplied to the recording head.
  • the ink supplied to the recording unit 229 is ejected as an ink droplet from the nozzle opening of the recording head toward the recording medium P.
  • the printer 203 and the ink supply device 204 are described as separate configurations. However, the ink supply device 204 may be included in the configuration of the printer 203.
  • an upper limit mark 233, a lower limit mark 234, and the like are added to a visual recognition surface 232 that can visually recognize the amount of ink accommodated
  • the viewing surface 232 is an example of a viewing portion.
  • the upper limit mark 233 is an example of an upper limit indicator part. The operator can grasp the amount of ink in the tank 210 using the upper limit mark 233 and the lower limit mark 234 as marks.
  • the upper limit mark 233 indicates a measure of the amount of ink that does not overflow from the liquid injection portion 235 when ink is injected from the liquid injection portion 235 (FIG. 37) described later.
  • the lower limit mark 234 indicates a measure of the amount of ink when prompting ink injection.
  • a configuration in which at least one of the upper limit mark 233 and the lower limit mark 234 is provided in the tank 210 may be employed.
  • the housing 207 and the housing 206 may be separate from each other or may be integrated.
  • the housing 207 and the housing 206 are integrated, it can be said that the plurality of tanks 210 are accommodated in the housing 206 together with the recording unit 229 and the ink supply tube 231.
  • the housing 206 corresponds to an exterior portion that houses the liquid container and the liquid ejecting head.
  • the arrangement location of the tank 210 is not limited to the side surface side of the housing 206 in the X-axis direction.
  • the front side of the housing 206 in the Y-axis direction can also be employed.
  • the plurality of tanks 210 are configured separately from each other.
  • the configuration of the tank 210 is not limited to this.
  • a configuration of the tank 210 a configuration in which a plurality of tanks 210 are integrated may be employed.
  • a plurality of ink chambers are provided in one tank 210.
  • the plurality of ink chambers are individually partitioned from each other and configured to accommodate different types of ink. In this case, for example, different color inks can be individually stored in the plurality of ink chambers.
  • the ink droplets are placed on the recording head of the recording unit 229 at a predetermined position while the recording medium P is conveyed in the Y-axis direction and the recording unit 229 is reciprocated along the X-axis. Is recorded on the recording medium P.
  • the ink is not limited to either water-based ink or oil-based ink.
  • the water-based ink may be either an ink having a structure in which a solute such as a dye is dissolved in an aqueous solvent or an ink having a structure in which a dispersoid such as a pigment is dispersed in an aqueous dispersion medium.
  • the oil-based ink may be either one having a configuration in which a solute such as a dye is dissolved in an oil-based solvent or one having a configuration in which a dispersoid such as a pigment is dispersed in an oil-based dispersion medium.
  • the casing 207 includes a first casing 241 and a second casing 242 as shown in FIG.
  • a liquid injection part 235 is formed in the tank 210.
  • ink can be injected into the tank 210 from the outside of the tank 210 via the liquid injection unit 235. Note that the operator can access the liquid injection part 235 of the tank 210 from the outside of the housing 207.
  • the X-axis, Y-axis, and Z-axis in FIG. 37 correspond to the X-axis, Y-axis, and Z-axis for the liquid ejection system 201 shown in FIG. That is, the X axis, the Y axis, and the Z axis in FIG. 37 mean the X axis, the Y axis, and the Z axis when the ink supply device 204 is incorporated in the liquid ejecting system 201.
  • the components and units are incorporated into the liquid ejecting system 201 (mounted) ) Means the X axis, the Y axis, and the Z axis. Then, the posture of each component or unit in the usage posture of the liquid ejection system 201 is referred to as the usage posture of the component or unit.
  • the first housing 241 is located in the ⁇ Z-axis direction with respect to the plurality of tanks 210.
  • the plurality of tanks 210 are supported by the first housing 241.
  • the second casing 242 is located in the Z-axis direction relative to the first casing 241 and covers the plurality of tanks 210 from the Z-axis direction of the first casing 241.
  • the plurality of tanks 210 are covered with a first housing 241 and a second housing 242.
  • the four tanks 210 are arranged along the Y axis.
  • the four tanks 210 are denoted as a tank 211, a tank 212, a tank 213, and a tank 214, respectively.
  • the tank 211, the tank 212, the tank 213, and the tank 214 are aligned in the Y-axis direction in this order. That is, the tank 212 is positioned in the Y axis direction from the tank 211, the tank 213 is positioned in the Y axis direction from the tank 212, and the tank 214 is positioned in the Y axis direction from the tank 213.
  • the tank 211, the tank 212, and the tank 213 have the same shape.
  • the tank 214 has a shape different from that of the other tanks 210.
  • the volume of the tank 214 is larger than the volumes of the other tanks 210.
  • the tank 214 has the same configuration as the other tanks 210. This configuration is suitable for accommodating, for example, frequently used types of ink in the tank 214. This is because more frequently used types of ink can be accommodated than other types of ink.
  • the second housing 242 has a cover 243.
  • the cover 243 is located at the end of the second housing 242 in the Z-axis direction.
  • the cover 243 is configured to be rotatable with respect to the second housing 242 as shown in FIG.
  • FIG. 38 illustrates a state where the cover 243 is opened with respect to the second housing 242.
  • the liquid injection portions 235 of the plurality of tanks 210 are exposed. Thereby, the operator can access the liquid injection part 235 of the tank 210 from the outside of the housing 207.
  • the liquid injection part 235 is sealed with a plug member 244.
  • the plug member 244 is removed from the liquid injection portion 235 and the liquid injection portion 235 is opened before ink is injected.
  • the liquid injecting unit 235 faces upward from the horizontal direction in the usage posture.
  • the tank 210 will be described. In the following, in order to identify the tank 210 for each embodiment, the alphabetical characters and symbols that are different for each embodiment are added to the reference numerals of the tank 210. Further, as described above, of the four tanks 210, the tank 214 and the other tanks 210 have the same configuration except that their volumes are different. Hereinafter, an example of the tank 210 will be described by taking the tank 211 as an example. Various embodiments of the tank 210 described below are also applicable to the tank 214. Therefore, detailed description of the embodiment of the tank 214 is omitted.
  • Example 2-1 The tank 210A in Example 2-1 will be described.
  • the tank 210A includes a case 251A that is an example of a tank body, and a sheet member 252A.
  • the case 251A is made of, for example, a synthetic resin such as nylon or polypropylene.
  • the sheet member 252A is formed into a film shape with a synthetic resin (for example, nylon, polypropylene, etc.) and has flexibility.
  • a recess 254 and a recess 255 are formed in the case 251A.
  • the case 251A is provided with a joint portion 256.
  • the joint portion 256 is hatched for easy understanding of the configuration.
  • the sheet member 252A is joined to the joining portion 256 of the case 251A.
  • the case 251A and the sheet member 252A are joined by welding.
  • the recess 254 and the recess 255 are closed by the sheet member 252A.
  • a space surrounded by the concave portion 254 and the sheet member 252A is called a liquid storage portion 257 (described later).
  • a space surrounded by the recess 255 and the sheet member 252A is called a buffer chamber 258 (described later).
  • the case 251A has a wall 261, a wall 262, a wall 263, a wall 264, a wall 265, a wall 266, a wall 267, a wall 268, and a wall 269. ing.
  • a recess 254 is located in the ⁇ Z-axis direction of the wall 265.
  • a recess 255 is located in the Z-axis direction of the wall 265.
  • the recess 254 and the recess 255 overlap along the Z axis with the wall 265 interposed therebetween.
  • the wall 261 of the recess 254 and the wall 261 of the recess 255 are the same wall. That is, the recess 254 and the recess 255 share the wall 261.
  • the recess 254 is surrounded by the wall 262, the wall 263, the wall 264, the wall 265, the wall 268, and the wall 269.
  • the recess 255 is surrounded by the wall 262, the wall 265, the wall 266, and the wall 267.
  • the wall 262 of the recess 254 and the wall 262 of the recess 255 are the same wall. That is, the recess 254 and the recess 255 share the wall 262.
  • the wall 265 of the recess 254 and the wall 265 of the recess 255 are the same wall. That is, the recess 254 and the recess 255 share the wall 265.
  • the walls 262 to 269 cross the wall 261, respectively.
  • the wall 262 and the wall 263 are provided at positions facing each other along the X axis with the wall 261 interposed therebetween. Further, the wall 263 and the wall 269 are provided at positions facing each other along the X axis with the wall 261 interposed therebetween.
  • the wall 262 is located in the Z-axis direction with respect to the wall 269.
  • the wall 262 and the wall 266 are provided at positions facing each other along the X axis with the wall 261 interposed therebetween.
  • the wall 264 and the wall 265 are provided at positions facing each other along the Z axis with the wall 261 interposed therebetween. Further, the wall 264 and the wall 268 are provided at positions facing each other along the Z axis with the wall 261 interposed therebetween.
  • the wall 265 is located in the Z-axis direction with respect to the wall 268.
  • the wall 265 and the wall 267 are provided at positions facing each other along the Z axis with the wall 261 interposed therebetween.
  • the wall 262 intersects the wall 268 at the end in the ⁇ Z-axis direction, intersects the wall 267 at the end in the Z-axis direction, and intersects the wall 265 between the wall 268 and the wall 267.
  • the wall 263 intersects the wall 264 at the end in the ⁇ Z-axis direction and intersects the wall 265 at the end in the Z-axis direction.
  • the wall 264 crosses the wall 269 at the end in the ⁇ X axis direction.
  • the wall 266 intersects the wall 265 and the wall 267, respectively.
  • the wall 268 intersects the wall 262 at the end in the X-axis direction and intersects the wall 269 at the end in the ⁇ X-axis direction.
  • the wall 262, the wall 263, the wall 264, the wall 265, the wall 268, and the wall 269 protrude from the wall 261 in the ⁇ Y axis direction.
  • the wall 262 extending from the main wall in the ⁇ Y-axis direction
  • the wall 263, the wall 264, the wall 265, the wall 268, and the wall 269 form a recess 254.
  • the recess 254 is configured in a direction that becomes concave in the Y-axis direction.
  • the recess 254 opens in the ⁇ Y axis direction, that is, toward the sheet member 252A side.
  • the concave portion 254 is provided in a direction that is concave toward the Y-axis direction, that is, toward the side opposite to the sheet member 252A side.
  • the recess 254 is closed by the sheet member 252A, and the liquid storage unit 257 is configured.
  • the wall 266 and the wall 267 protrude from the wall 261 in the ⁇ Y axis direction.
  • the wall 262 extending from the main wall in the ⁇ Y-axis direction, the wall 265, the wall 266, and the wall 267 form a recess 255.
  • the concave portion 255 is configured to be concave toward the Y-axis direction.
  • the recess 255 opens in the ⁇ Y axis direction, that is, toward the sheet member 252A side.
  • the concave portion 255 is provided in a direction that is concave toward the Y-axis direction, that is, toward the side opposite to the sheet member 252A side.
  • the recess 255 is closed by the sheet member 252A, and the buffer chamber 258 is configured.
  • the walls 261 to 269 are not limited to flat walls, but may include irregularities. Further, the protruding amounts of the walls 262 to 269 from the wall 261 are set to the same protruding amount.
  • the wall 266 and the wall 263 have a step in the X-axis direction.
  • the wall 263 is located in the X axis direction with respect to the wall 266.
  • the liquid injection part 235 is provided between the wall 263 and the wall 266 in a state where the wall 261 is viewed in plan from the sheet member 252A side.
  • the liquid injection part 235 is provided on the wall 265.
  • the wall 267 is provided with an atmosphere opening portion 271.
  • the atmosphere opening portion 271 communicates with the recess 255.
  • the atmosphere is introduced into the buffer chamber 258 through the atmosphere opening portion 271.
  • a notch 272 is formed in a portion of the wall 265 where the recess 255 and the recess 254 intersect.
  • the notch 272 is formed at the end of the wall 265 in the ⁇ Y axis direction.
  • the notch 272 is formed so as to be concave in the Y-axis direction from the end of the wall 265 in the ⁇ Y-axis direction. For this reason, when the sheet member 252 ⁇ / b> A is joined to the case 251 ⁇ / b> A, the recess 254 and the recess 255 communicate with each other through the notch 272.
  • a space surrounded by the notch 272 and the sheet member 252A constitutes a flow path 273 through which air and ink can flow.
  • the liquid storage unit 257 communicates with the outside of the tank 210 ⁇ / b> A via the flow path 273, the buffer chamber 258, and the air release unit 271.
  • the tank 210A is configured such that the atmosphere outside the tank 210A can be introduced into the liquid storage unit 257 via the atmosphere opening part 271, the buffer chamber 258, and the flow path 273.
  • the atmosphere opening part 271, the buffer chamber 258, and the flow path 273 constitute an atmosphere introduction part 275.
  • a liquid supply unit 274 is provided on the wall 264 of the case 251A.
  • the liquid supply unit 274 protrudes from the wall 264 in the ⁇ Z axis direction.
  • the liquid supply unit 274 communicates with the inside of the tank 210A.
  • the ink stored in the liquid storage portion 257 of the tank 210A is supplied to the ink supply tube 231 (FIG. 36) via the liquid supply portion 274.
  • the sheet member 252A faces the wall 261 with the walls 262 to 269 sandwiched in the Y-axis direction.
  • the sheet member 252A has a size and a shape that covers the recess 254 and the recess 255 when viewed in plan in the Y-axis direction.
  • the sheet member 252A is welded to the joint portion 256 with a gap between the sheet member 252A and the wall 261. Thereby, the recessed part 254 and the recessed part 255 are sealed by the sheet member 252A. For this reason, the sheet member 252A can be regarded as a lid for the case 251A.
  • the tank 210A having the above configuration has a form in which a part of the liquid storage portion 257 protrudes in the ⁇ X-axis direction from the wall 262, as shown in FIG.
  • a portion of the tank 210A that protrudes in the ⁇ X-axis direction from the wall 262 is referred to as a protruding housing portion 277A.
  • the protrusion accommodating portion 277A of the tank 210A is located in the ⁇ Z-axis direction of the mechanism unit 203A as shown in FIG.
  • the mechanism unit 203A of the liquid ejecting system 201 when the mechanism unit 203A of the liquid ejecting system 201 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the tank 210A other than the liquid injection part 235 is in the region of the mechanism unit 203A. overlapping. In other words, in the usage posture, at least a part of the tank 210A other than the liquid injection part 235 is positioned vertically below the mechanism unit 203A. According to this configuration, it is easy to increase the amount of ink that can be accommodated in the tank 210A while reducing an increase in the projected area (footprint) in plan view of the mechanism unit 203A and the tank 210A. Therefore, it is easy to reduce the increase in size of the liquid ejecting system 201.
  • the embodiment 2-1 it is easy to increase the amount of ink that can be accommodated in the tank 210 while reducing an increase in the projected area (footprint) of the liquid ejection system 201 in plan view. . For this reason, for example, it is possible to avoid increasing the amount of ink that can be accommodated in the tank 210 by expanding the tank 210 in the X-axis direction or expanding the tank 210 in the Y-axis direction. For example, in a configuration in which the tank 210 is expanded in the Y-axis direction, when the liquid ejection system 201 is viewed in plan in the ⁇ Z-axis direction, the tank 210 may protrude from the mechanism unit 203A in the Y-axis direction.
  • the position of the tank 210 in the Y-axis direction can be more easily set in the ⁇ Y-axis direction than the position of the mechanism unit 203A in the Y-axis direction.
  • the protrusion accommodating portion 277A is located in the ⁇ Z-axis direction with respect to the mechanism unit 203A.
  • the position of the protrusion accommodating portion 277A is not limited to this, and may be located in the Z-axis direction with respect to the mechanism unit 203A, for example.
  • the position of the protruding housing portion 277A in the tank 210 may be set to be shifted in the Z-axis direction.
  • Example 2-2 In the tank 210B of the embodiment 2-2, as shown in FIG. 42, the protruding housing portion 277A in the embodiment 2-1 is omitted.
  • the air introduction part 275 protrudes in the ⁇ X axis direction from the wall 262.
  • the buffer chamber 258 protrudes in the ⁇ X axis direction from the wall 262. That is, in Example 2-2, the buffer chamber 258 is expanded in the ⁇ X axis direction. Thereby, in Example 2-2, the air introduction part 275 is expanded.
  • the tank 210B of Example 2-2 has the same configuration as the tank 210A of Example 2-1. For this reason, in the following, among the configurations of the tank 210B of the embodiment 2-2, the same configurations as those of the embodiment 2-1 are denoted by the same reference numerals as those of the embodiment 2-1, and detailed description thereof is omitted.
  • the tank 210B includes a case 251B and a sheet member 252B.
  • the atmosphere introduction part 275 is expanded by changing the shapes and dimensions of the case 251B and the sheet member 252B from the example 2-1.
  • a portion of the atmosphere introduction portion 275 of the tank 210B that protrudes in the ⁇ X-axis direction from the wall 262 is referred to as a protrusion introduction portion 278A.
  • the case 251B has a wall 281 and a wall 282 as shown in FIG.
  • the wall 268 and the wall 269 (FIG. 39) in Example 2-1 are omitted.
  • the wall 264 intersects the ⁇ Z-axis direction end of the wall 262 at the ⁇ X-axis direction end.
  • the wall 281 extends along the XY plane.
  • the wall 282 extends along the YZ plane.
  • the wall 281 is located in the Z-axis direction with respect to the wall 265 and is located in the ⁇ Z-axis direction with respect to the wall 267. Further, the wall 282 is located in the ⁇ X axis direction with respect to the wall 262.
  • the wall 281 intersects the end in the Z-axis direction of the wall 262 at the end in the X-axis direction, and intersects the end in the ⁇ Z-axis direction of the wall 282 at the end in the ⁇ X-axis direction.
  • the wall 282 intersects the end portion of the wall 267 in the ⁇ X axis direction at the end portion in the Z axis direction.
  • Each of the wall 281 and the wall 282 intersects the wall 261 at the end in the Y-axis direction, and projects from the wall 261 in the ⁇ Y-axis direction. That is, in Example 2-2, a part of the wall 261 protrudes in the ⁇ X axis direction from the wall 262. Further, a part of the wall 267 protrudes in the ⁇ X axis direction from the wall 262.
  • a region surrounded by the wall 281, the wall 282, the wall 267, a region of the wall 261 that protrudes more in the ⁇ X-axis direction than the wall 262, and the sheet member 252 ⁇ / b> B constitutes a protruding introduction portion 278 ⁇ / b> A.
  • the projecting and introducing portion 278A of the tank 210B is located in the Z-axis direction of the mechanism unit 203A as shown in FIG. That is, when the mechanism unit 203A of the liquid ejecting system 201 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the air introduction part 275 of the tank 210B overlaps the region of the mechanism unit 203A. In other words, in the use posture, at least a part of the air introduction part 275 of the tank 210B is located vertically above the mechanism unit 203A.
  • Example 2-2 it is easy to increase the amount of ink that can be stored in the buffer chamber 258 of the tank 210 while reducing an increase in the projected area (footprint) of the liquid ejecting system 201 in plan view. Therefore, for example, it is possible to avoid increasing the amount of ink that can be stored in the buffer chamber 258 of the tank 210 by expanding the tank 210 in the X-axis direction or expanding the tank 210 in the Y-axis direction. .
  • the tank 210 may protrude from the mechanism unit 203A in the Y-axis direction.
  • the position of the tank 210 in the Y-axis direction can be more easily set in the ⁇ Y-axis direction than the position of the mechanism unit 203A in the Y-axis direction.
  • the protrusion introduction portion 278A is positioned in the Z-axis direction with respect to the mechanism unit 203A.
  • the position of the protrusion introduction portion 278A is not limited to this, and may be located in the ⁇ Z-axis direction with respect to the mechanism unit 203A, for example.
  • the position of the protrusion introduction portion 278A in the tank 210 may be set to be shifted in the ⁇ Z axis direction.
  • Example 2-3 As shown in FIG. 45, the tank 210C of Example 2-3 has a protruding housing portion 277A and a protruding introduction portion 278A. That is, the tank 210C has a configuration in which the protruding housing portion 277A in the embodiment 2-1 is added to the tank 210B in the embodiment 2-2. Except for this, the tank 210C of Example 2-3 has the same configuration as Example 2-1 and Example 2-2. Therefore, in the following, the configuration of the tank 210C of Example 2-3 that is the same as that of Example 2-1 and Example 2-2 is the same as that of Example 2-1 and Example 2-2. Reference numerals are assigned and detailed description is omitted.
  • the tank 210C includes a case 251C and a sheet member 252C.
  • the shape and dimensions of the case 251C and the sheet member 252C are changed from those in Example 2-2, so that a protruding housing portion 277A is added.
  • the protruding housing portion 277A of the tank 210C is positioned in the ⁇ Z-axis direction of the mechanism unit 203A as shown in FIG. That is, when the mechanism unit 203A of the liquid ejection system 201 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the tank 210C other than the liquid injection part 235 is in the region of the mechanism unit 203A. overlapping. In other words, in the usage posture, at least a part of the tank 210C other than the liquid injection part 235 is positioned vertically below the mechanism unit 203A.
  • the projecting introduction portion 278A of the tank 210C is located in the Z-axis direction of the mechanism unit 203A. That is, when the mechanism unit 203A of the liquid ejection system 201 is viewed in plan in the ⁇ Z-axis direction in the use posture, at least a part of the air introduction part 275 of the tank 210C overlaps the region of the mechanism unit 203A. In other words, in the use posture, at least a part of the air introduction part 275 of the tank 210C is located vertically above the mechanism unit 203A.
  • Example 2-3 the same effect as in Example 2-1 and Example 2-2 can be obtained.
  • an arbitrary protruding amount can be adopted as the protruding amount from the wall 262 of the protruding housing portion 277A and the protruding introduction portion 278A.
  • the amount of protrusion from the wall 262 of the protrusion accommodating portion 277A and the protrusion introduction portion 278A is set to be equal in the four tanks 210.
  • a configuration in which the protrusion amount from the wall 262 of the protrusion accommodating portion 277A and the protrusion introduction portion 278A is set to a different protrusion amount by the four tanks 210 may be employed.
  • the four tanks 210 In particular, the amount of protrusion of the protrusion accommodating portion 277A and the protrusion introduction portion 278A can be changed. This idea can also be applied to the first embodiment described above.
  • the volume of the region where the buffer chamber 258 and the flow path 273 are combined in the atmosphere introduction unit 275 is equal to the volume of the liquid storage unit 257, or the liquid storage
  • the volume of the portion 257 is preferably larger. According to this configuration, for example, even if the ink in the liquid storage unit 257 flows into the atmosphere introduction unit 275, the ink that has flowed in can be retained in the atmosphere introduction unit 275. It is easier to avoid leaking out of the tank 210 via the introduction part 275.
  • the air introduction part 275 is configured as a part of the tank 210, respectively. For this reason, the air introduction part 275 is configured integrally with the tank 210. However, the structure of the air introduction part 275 is not limited to this. At least a part of the air introduction part 275 can be configured to be separable from the tank 210. An example in which a part of the air introduction part 275 is configured to be separable from the tank 210 will be described below as Example 2-4.
  • Example 2-4 As shown in FIG. 47 which is a side view schematically showing the liquid ejecting system 201, the tank 210D and the air introduction part 275A are configured separately from each other. In the usage posture of the liquid ejection system 201, a part of the tank 210D other than the liquid injection part 235 overlaps the region of the mechanism unit 203A. In the example shown in FIG. 47, a part of the tank 210D other than the liquid injection part 235 is positioned below the mechanism unit 203A.
  • the air introduction part 275A is located in the Z-axis direction with respect to the mechanism unit 203A. At least a part of the air introduction part 275A overlaps the area of the mechanism unit 203A. In the example shown in FIG. 47, a part of the air introduction part 275A is located vertically above the mechanism unit 203A.
  • the liquid storage part 257 of the tank 210D and the air introduction part 275A are connected via a connection part 291. That is, the liquid storage part 257 and the air introduction part 275A of the tank 210D communicate with each other via the connection part 291. Accordingly, the atmosphere can be introduced into the liquid storage portion 257 of the tank 210D via the atmosphere introduction portion 275A and the connection portion 291.
  • the connecting portion 291 is located outside the mechanism unit 203A.
  • the connecting portion 291 can be disposed outside the path of the relative position change between the recording head and the recording medium P.
  • the arrangement of the connecting portion 291 is not limited to the outside of the mechanism unit 203A.
  • an arrangement passing through the inside of the mechanism unit 203 ⁇ / b> A can be adopted as long as it is outside the path of change in the relative position between the recording head and the recording medium P.
  • the tank 210D and the air introduction part 275A can be separated from each other by disconnecting the connection part 291 between the tank 210D and the air introduction part 275A.
  • the atmosphere introduction unit 275 can be added to the tank 210 or the atmosphere introduction unit 275 can be expanded.
  • the tank 210D and the atmosphere introduction part 275A are connected via the connection part 291, the position of the atmosphere introduction part 275A with respect to the tank 210D can be easily changed. Thereby, the freedom degree of the position of the air introduction part 275A with respect to the tank 210D can be raised.
  • connection portion 291 by adopting a flexible tube as the connection portion 291, the degree of freedom of the piping path of the connection portion 291 can be easily increased. Accordingly, it is possible to facilitate piping in a narrow space between the mechanism unit 203A and the housing 206 of the liquid ejection system 201, a narrow space in the mechanism unit 203A, or the like.
  • Example 2-1 to Example 2-4 in the second embodiment portions of the air introduction unit 275 and the air introduction unit 275A that are located in the Z-axis direction from the mechanism unit 203A are shown in FIG.
  • a configuration in which the scanner unit 205 is positioned in the ⁇ Z-axis direction can be employed.
  • a portion of the atmosphere introduction unit 275 and the atmosphere introduction unit 275 ⁇ / b> A that overlaps the area of the mechanism unit 203 ⁇ / b> A is positioned vertically below the scanner unit 205.
  • FIG. 6 a configuration located on the side of the scanner unit 205 can also be adopted.
  • a portion of the atmosphere introduction unit 275 and the atmosphere introduction unit 275 ⁇ / b> A that overlaps the region of the mechanism unit 203 ⁇ / b> A is positioned beside the scanner unit 205. According to this configuration, it is easy to reduce the increase in the thickness of the liquid ejection system 201. Therefore, it is easy to reduce the increase in size of the liquid ejecting system 201.
  • the liquid ejecting apparatus may be a liquid ejecting apparatus that consumes by ejecting, discharging, or applying a liquid other than ink.
  • the state of the liquid ejected as a minute amount of liquid droplets from the liquid ejecting apparatus includes a granular shape, a tear shape, and a thread-like shape.
  • the liquid here may be any material that can be consumed by the liquid ejecting apparatus.
  • it may be in a state in which the substance is in a liquid phase, such as a liquid with high or low viscosity, sol, gel water, other inorganic solvents, organic solvents, solutions, liquid resins, liquid metals (metal melts ).
  • the ink includes general water-based inks and oil-based inks, and various liquid compositions such as gel inks and hot melt inks.
  • sublimation transfer ink can be used as the ink.
  • the sublimation transfer ink is an ink containing a sublimation color material such as a sublimation dye.
  • a sublimation transfer ink is ejected onto a transfer medium by a liquid ejecting apparatus, the transfer medium is brought into contact with the printing material, heated to sublimate the color material, and transferred to the printing material.
  • the substrate is a T-shirt, a smartphone, or the like.
  • the ink includes a sublimable color material
  • printing can be performed on various printed materials (printing media).
  • the liquid ejecting apparatus for example, a liquid containing a material such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL (electroluminescence) display, a surface emitting display, or a color filter in a dispersed or dissolved form.
  • liquid ejecting apparatus for ejecting the liquid. Further, it may be a liquid ejecting apparatus that ejects a bio-organic matter used for biochip manufacturing, a liquid ejecting apparatus that ejects liquid as a sample that is used as a precision pipette, a printing apparatus, a micro dispenser, or the like.
  • transparent resin liquids such as UV curable resin to form liquid injection devices that pinpoint lubricant oil onto precision machines such as watches and cameras, and micro hemispherical lenses (optical lenses) used in optical communication elements.
  • a liquid ejecting apparatus that ejects the liquid onto the substrate.
  • it may be a liquid ejecting apparatus that ejects an etching solution such as acid or alkali in order to etch a substrate or the like.
  • the present invention is not limited to the above-described embodiments and examples, and can be realized with various configurations without departing from the spirit of the present invention.
  • the technical features in the embodiments and examples corresponding to the technical features in each embodiment described in the summary section of the invention may be used to solve part or all of the above-described problems, or In order to achieve part or all of the effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.
  • liquid storage portion 91 ... atmosphere chamber, 92 ... through hole, 93 ... joining portion, 97 ... buffer chamber, 98 ... flow path, 99 ... atmosphere introduction portion , 101A, 101B, 101C ... protruding housing portion, 103A, 103B, 103C ... protruding introducing portion, 111 ... connecting portion, 201 ... liquid ejecting system, 203 ... printer, 203A Mechanism unit 205 ... Scanner unit 210, 210A, 210B, 210C, 210D ... Tank, 229 ... Recording unit, 232 ... Viewing surface, 235 ... Liquid injection unit, 251A, 251B, 251C ...

Landscapes

  • Ink Jet (AREA)
PCT/JP2016/083510 2015-11-20 2016-11-11 液体噴射システム Ceased WO2017086247A1 (ja)

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JP2015227376A JP6651806B2 (ja) 2015-11-20 2015-11-20 液体噴射システム

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US10118400B2 (en) 2018-11-06
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JP6651806B2 (ja) 2020-02-19
JP2017094550A (ja) 2017-06-01
CN106994833B (zh) 2020-03-31

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