EP3581387A1 - Tintenbehälter und bilderzeugungsvorrichtung - Google Patents

Tintenbehälter und bilderzeugungsvorrichtung Download PDF

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Publication number
EP3581387A1
EP3581387A1 EP19156357.6A EP19156357A EP3581387A1 EP 3581387 A1 EP3581387 A1 EP 3581387A1 EP 19156357 A EP19156357 A EP 19156357A EP 3581387 A1 EP3581387 A1 EP 3581387A1
Authority
EP
European Patent Office
Prior art keywords
rib
ink container
cover
face
ink
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.)
Granted
Application number
EP19156357.6A
Other languages
English (en)
French (fr)
Other versions
EP3581387B1 (de
Inventor
Tatsuhiko Yoshii
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.)
Kyocera Document Solutions Inc
Original Assignee
Kyocera Document Solutions Inc
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
Priority claimed from JP2018113621A external-priority patent/JP7063135B2/ja
Priority claimed from JP2018209743A external-priority patent/JP7225698B2/ja
Application filed by Kyocera Document Solutions Inc filed Critical Kyocera Document Solutions Inc
Publication of EP3581387A1 publication Critical patent/EP3581387A1/de
Application granted granted Critical
Publication of EP3581387B1 publication Critical patent/EP3581387B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer
    • B41J2/17523—Ink connection
    • 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
    • B41J2/17513—Inner structure
    • B41J2002/17516—Inner structure comprising a collapsible ink holder, e.g. a flexible bag

Definitions

  • the present disclosure relates to an ink container and an image forming apparatus including the ink container.
  • An inkjet type image forming apparatus forms an image on a recording medium by discharging ink from a recording head on the recording medium.
  • the ink used for forming the image is usually supplied to the recording head from an ink container.
  • the ink container is usually detachably attached to an attachment part provided in the image forming apparatus.
  • the ink container includes an ink pack storing the ink, a case storing the ink pack and a cover fixed to an end portion of the case.
  • an ink container includes an ink pack, a paper case and a cover.
  • the ink pack is configured to store ink.
  • the paper case is configured to store the ink pack and to have a shape elongated in one direction.
  • the cover is bonded to an end portion in the one direction of the case.
  • a protection rib is protruded on an outer circumferential face of the cover. The protection rib covers, from an outside in the one direction, a bonded portion of the end portion of the case and the cover.
  • an image forming apparatus includes the ink container and an attachment part to which the ink container is detachably attached.
  • a near side of a paper surface of FIG. 1 is defined as a front side of the image forming apparatus 1.
  • Arrows Fr, Rr, L, R, U and Lo suitably marked in each figure respectively indicate a front side, a rear side, a left side, a right side, an upper side and a lower side of the image forming apparatus 1.
  • a front-and-rear direction is an example of one direction
  • an upper-and-lower direction is an example of a direction perpendicular to the one direction
  • a left-and-right direction is an example of a direction perpendicular to the one direction and the upper-and-lower direction.
  • the image forming apparatus 1 is an inkjet type color printer, for example.
  • the image forming apparatus 1 includes a box-shaped apparatus main body 2. In a lower portion of the apparatus main body 2, a plurality of sheet feeding cassettes 3 is stored. Each sheet feeding cassette 3 stores a sheet S (an example of a recording medium).
  • a conveyance path P for the sheet S is provided inside the apparatus main body 2.
  • a plurality of sheet feeding parts 4 is provided at an upstream end portion of the conveyance path P.
  • a conveyance belt 5 and four line heads 6 are provided at a midstream portion of the conveyance path P.
  • the respective line heads 6 correspond to black, cyan, magenta and yellow.
  • Each line head 6 includes a plurality of recording heads 7.
  • a sheet ejecting part 8 is provided at a downstream end portion of the conveyance path P.
  • each attachment part 9 In a left lower portion of the apparatus main body 2, four attachment parts 9 are provided. To each attachment part 9, one of four ink containers 10 is detachably attached. The respective ink containers 10 store inks of black, cyan, magenta and yellow. Each ink container 10 is connected to the corresponding recording head 7 of the corresponding line head 6 via one of four pipes 11.
  • the sheet S is fed from the sheet feeding cassette 3 by the sheet feeding part 4.
  • the fed sheet S is conveyed to a downstream side along the conveyance path P and sucked on an upper face of the conveyance belt 5.
  • the recording head 7 of the line head 6 discharges the ink supplied from the ink container 10, to the sheet S sucked on the upper face of the conveyance belt 5. Thereby, a color image is formed on the sheet S.
  • the sheet S on which the color image is formed is further conveyed to the downstream side along the conveyance path P and then ejected by the sheet ejecting part 8 outside the apparatus main body 2.
  • each attachment part 9 extends along the front-and-rear direction (a depth direction of a paper surface of FIG. 2 ). A front end portion of each attachment part 9 is opened. The front end portion of each attachment part 9 is covered by a front cover (not shown).
  • each attachment part 9 On a rear portion of a bottom face of each attachment part 9, a pin 12 is protruded. On the rear portion of the bottom face of each attachment part 9, bosses 13 are protruded at both sides in the left-and-right direction of the pin 12. At the rear side of each attachment part 9, a communication board 15 is provided. On a rear face of each attachment part 9, a cylindrical supply port 16 is provided. At a center portion of the supply port 16, a needle 17 is provided.
  • An arrow O suitably marked in each figure subsequent to FIG. 3 indicates an outside in the front-and-rear direction of each ink container 10 (a side separate from a center portion in the front-and-rear direction of each ink container 10), and an arrow I suitably marked in each figure subsequent to FIG. 3 indicates an inside in the front-and-rear direction of each ink container 10 (a side close to the center portion in the front-and-rear direction of each ink container 10).
  • An arrow Z suitably marked in each figure subsequent to FIG. 3 indicates an attachment direction in which each ink container 10 is attached to the corresponding attachment part 9 (a direction from the front side to the rear side, in the present embodiment).
  • each ink container 10 includes an ink pack 22, a spout 23 attached to a rear end portion (an end portion in the front-and-rear direction) of the ink pack 22, a case 24 storing the ink pack 22, a cover 25 covering a rear end portion 24a (an end portion in the front-and-rear direction) of the case 24, a liquid absorbing sheet 26 and an IC tag 27 which are fixed to the cover 25.
  • the above components of the ink container 10 will be explained in the above order.
  • the ink pack 22 of each ink container 10 has a shape elongated in the front-and-rear direction.
  • the ink pack 22 is formed by welding a plural of film sheets 29, and has a bag like shape.
  • Each film sheet 29 is formed by laminating resin material and metal material, and has flexibility.
  • the ink (not shown) is stored.
  • the spout 23 of each ink container 10 includes a spout main body 31, a cap 32 attached to the spout main body 31, a first valve body 33 stored in the cap 32, a cylindrical body 34 attached to the cap 32 and a second valve body 35 stored in the cylindrical body 34.
  • the spout main body 31 of the spout 23 has a cylindrical shape.
  • a front end portion of the spout main body 31 is communicated with the inner space of the ink pack 22.
  • An outer circumferential face of the front end portion of the spout main body 31 is welded to the rear end portion of the ink pack 22.
  • a restriction groove 37 is provided on an outer circumferential face of a front portion of the spout main body 31 .
  • the cap 32 of the spout 23 includes an annular base part 39, an outer cylindrical part 40, an inner cylindrical part 41 and a discharge cylindrical part 42.
  • the outer cylindrical part 40 extends from an outer end portion in a radial direction of the base part 39 to the front side (the inside in the front-and-rear direction).
  • the inner cylindrical part 41 extends from an inner portion in the radial direction of the base part 39 to the front side (the inside in the front-and-rear direction).
  • the discharge cylindrical part 42 extends from an inner end portion in the radial direction of the base part 39 to the rear side (the outside in the front-and-rear direction).
  • An inner circumferential face of the outer cylindrical part 40 is meshed with an outer circumferential face of a rear end portion of the spout main body 31.
  • a discharge port 43 (hereinafter, called “the discharge port 43 of the spout 23") is provided.
  • the first valve body 33 of the spout 23 is movable in the front-and-rear direction between a first opening position (refer to a solid line in FIG. 5 ) where the first valve body 33 opens the discharge port 43 of the spout 23 and a first closing position (refer to a dotted line in FIG. 5 ) where the first valve body 33 closes the discharge port 43 of the spout 23.
  • the first valve body 33 is biased to the first closing position (refer to the dotted line in FIG. 5 ) by a first spring 45.
  • the cylindrical body 34 of the spout 23 has a cylindrical shape.
  • the cylindrical body 34 is stored in the spout main body 31.
  • An outer circumferential face of a rear end portion of the cylindrical body 34 is meshed with an inner circumferential face of the inner cylindrical part 41 of the cap 32.
  • a communication port 47 (hereinafter, called “the communication port 47 of the spout 23") is provided inside the cylindrical body 34.
  • the second valve body 35 of the spout 23 is movable in the front-and-rear direction between a second opening position (refer to a solid line in FIG. 5 ) where the second valve body 35 opens the communication port 47 of the spout 23 and a second closing position (refer to a dotted line in FIG. 5 ) where the second valve body 35 closes the communication port 47 of the spout 23.
  • the second valve body 35 is biased to the second closing position (refer to the dotted line in FIG. 5 ) by a second spring 49.
  • the case 24 of each ink container 10 has a square tube shape elongated in the front-and-rear direction.
  • the case 24 is formed by a sheet of paper 51. That is, the case 24 is formed by paper.
  • the paper 51 includes a corrugated cardboard layer 52 and a coated cardboard layer 53 covering a surface of the corrugated cardboard layer 52.
  • the corrugated cardboard layer 52 is composed of single-faced corrugated cardboard or double-faced corrugated cardboard, for example.
  • the coated cardboard layer 53 is composed of white-coated cardboard, for example.
  • a pair of closing plates 55 is provided at a front end portion of the case 24.
  • the respective closing plates 55 are folded from an upper face and a lower face of the case 24.
  • the closing plates 55 are overlapped with each other to close the front end portion of the case 24.
  • the rear end portion 24a (the end portion in the front-and-rear direction) of the case 24 is opened.
  • a slit 57 is provided at each of four corner portions of the rear end portion 24a of the case 24.
  • Each slit 57 has a shape elongated in the front-and-rear direction.
  • four flaps 58 are provided between the adjacent slits 57.
  • a folding line 59 is provided along the left-and-right direction or the upper-and-lower direction.
  • the cover 25 of each ink container 10 has a square frame shape.
  • the cover 25 includes an inner cover part 61 and an outer cover part 62 attached to the inner cover part 61.
  • the inner cover part 61 of the cover 25 has a square frame shape.
  • An outer circumferential face 61a (an upper face, a lower face, a left face and a right face) of the inner cover part 61 is bonded to inside faces of the flaps 58 of the case 24. Thereby, the inner cover part 61 is fixed to the rear end portion 24a of the case 24.
  • a restriction frame 63 is provided on a front face (a face at the inside in the front-and-rear direction) of the inner cover part 61.
  • the restriction frame 63 is engaged with the restriction groove 37 provided in the spout main body 31 of the spout 23. This restricts displacement of the spout 23 in the upper-and-lower direction and in the front-and-rear direction with respect to the inner cover part 61.
  • a through hole 64a is provided on an upper portion of a rear face (a face at the outside in the front-and-rear direction) of the inner cover part 61 .
  • through holes 64b are provided on both side portions in the left-and-right direction of the rear face of the inner cover part 61 .
  • a fitting groove 65a (an example of a first fitting part) is provided.
  • fitting grooves 65b (an example of the first fitting part) are provided.
  • Each of the fitting grooves 65a and 65b is recessed from a front end portion (an end portion at the inside in the front-and-rear direction) of the inner cover part 61 to the rear side.
  • first rib 66a is protruded so as to be overlapped with the through hole 64a and the fitting groove 65a in the left-and-right direction.
  • the first rib 66a extends along the left-and-right direction.
  • first ribs 66b are protruded so as to be overlapped with the through holes 64b and the fitting grooves 65b in the upper-and-lower direction. Each first rib 66b extends along the upper-and-lower direction.
  • left and right depressions 67 are provided on the lower face of the inner cover part 61 .
  • a fitting projection 68 is protruded on each depression 67.
  • the outer cover part 62 of the cover 25 is formed separately from the inner cover part 61.
  • the outer cover part 62 has a square frame shape.
  • the outer cover part 62 covers the rear side (the outside in the front-and-rear direction) of the inner cover part 61.
  • An outer circumferential face 62a (an upper face, a lower face, a left face and a right face) of the outer cover part 62 constitutes an outer circumferential face 25a of the cover 25 together with the outer circumferential face 61a (the upper face, the lower face, the left face and the right face) of the inner cover part 61.
  • left and right protruding pieces 69 are protruded on a lower portion of a front face (a face at the inside in the front-and-rear direction) of the outer cover part 62.
  • Each protruding piece 69 is engaged with each depression 67 of the inner cover part 61.
  • Each protruding piece 69 has a fitting hole 70. Into the fitting hole 70, the fitting projection 68 provided on each depression 67 of the inner cover part 61 is fitted.
  • connection ribs 71 are protruded on a center portion of a rear face (a face at the outside in the front-and-rear direction) of the outer cover part 62.
  • the connection ribs 71 are aligned at intervals in the upper-and-lower direction.
  • a pedestal part 72 to which the IC tag 27 (described later in detail) is fixed is protruded on a right side portion of the rear face of the outer cover part 62.
  • a left side face of the pedestal part 72 is connected to the connection ribs 71.
  • a square small groove 73 is provided at a center portion of a rear face (a face at the outside in the front-and-rear direction) of the pedestal part 72 .
  • an approximately U-shaped guide rib 74 is provided at an outer edge portion of the rear face of the pedestal part 72.
  • a recess 75a is provided above the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • the recess 75a has a width in the left-and-right direction wider than a width in the left-and-right direction of the pedestal part 72.
  • recesses 75b are provided on the left face and the right face of the outer cover part 62.
  • Each recess 75b has a width in the upper-and-lower direction wider than a width in the upper-and-lower direction of the pedestal part 72.
  • a hook 76a (an example of a second fitting part) is protruded above the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • the hook 76a penetrates through the through hole 64a of the inner cover part 61 and fitted into the fitting groove 65a of the inner cover part 61.
  • hooks 76b (an example of the second fitting part) are protruded.
  • the hooks 76b penetrate through the through holes 64b of the inner cover part 61 and fitted into the fitting grooves 65b of the inner cover part 61.
  • second ribs 77a are protruded on a front end portion (an end portion at the inside in the front-and-rear direction) of the upper face of the outer cover part 62.
  • the second ribs 77a are separated by the recess 75a.
  • Each second rib 77a extends along the left-and-right direction.
  • the second ribs 77a are arranged on a linear line with the first rib 66a of the inner cover part 61.
  • a second rib 77b is protruded on a front end portion (an end portion at the inside in the front-and-rear direction) of the lower face of the outer cover part 62.
  • the second rib 77b extends along the left-and-right direction.
  • the second rib 77b continuously extends from a left end portion to a right end portion of the outer cover part 62.
  • the second ribs 77a and 77b constitutes a protection rib 78 together with the first ribs 66a and 66b.
  • the protection rib 78 covers, from the rear side (the outside in the front-and-rear direction), a bonded portion Y of the inside faces of the flaps 58 of the case 24 and the outer circumferential face 61a of the inner cover part 61.
  • the protection rib 78 is protruded from each of four faces (an upper face, a lower face, a left face and a right face) of the cover 25, and the four faces constitute the outer circumferential face 25a of the cover 25.
  • the protection rib 78 includes an area M whose position in the left-and-right direction is overlapped with a position in the left-and-right direction of the hook 76a.
  • the area M is constituted by the first rib 66a.
  • the protection rib 78 includes areas N whose positions in the upper-and-lower direction are overlapped with positions in the upper-and-lower direction of the hooks 76b.
  • the areas N are constituted by the first ribs 66b.
  • a plurality of reinforcement ribs 79a is protruded at the rear side (the outside in the front-and-rear direction) of the second ribs 77a.
  • the reinforcement ribs 79a are formed continuously with the second ribs 77a.
  • a protruded height of each reinforcement rib 79a with respect to the upper face of the outer cover part 62 is increased from the rear side (the outside in the front-and-rear direction) to the front side (the inside in the front-and-rear direction).
  • the reinforcement ribs 79a are provided at intervals in the left-and-right direction.
  • a plurality of reinforcement ribs 79b is protruded at the rear side (the outside in the front-and-rear direction) of the second rib 77b.
  • the reinforcement ribs 79b are formed continuously with the second rib 77b.
  • a protruded height of each reinforcement rib 79b with respect to the lower face of the outer cover part 62 is increased from the rear side (the outside in the front-and-rear direction) to the front side (the inside in the front-and-rear direction).
  • the reinforcement ribs 79b are provided at intervals in the left-and-right direction.
  • extension ribs 80 On the lower face of the outer cover part 62, a plurality of extension ribs 80 is protruded at the rear side (the outside in the front-and-rear direction) of the reinforcement ribs 79b.
  • the extension ribs 80 are formed continuously with the reinforcement ribs 79b.
  • Each extension rib 80 extends along the front-and-rear direction.
  • a groove part 84 is provided below the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • the groove part 84 has a first path 85, a second path 86 provided at the front side of the first path 85 and a third path 87 provided at the front side of the second path 86.
  • the first path 85 is gradually narrowed from the rear side to the front side.
  • the second path 86 is inclined to the left side from the rear side to the front side.
  • the third path 87 extends along the left-and-right direction.
  • the third path 87 has an engagement groove 88.
  • engagement ribs 89 are provided at both sides in the left-and-right direction of the groove part 84.
  • a cylindrical holding tube 91 is provided on the front face (the face at the inside in the front-and-rear direction) of the outer cover part 62.
  • the outer cylindrical part 40 of the cap 32 of the spout 23 is fitted into the holding tube 91. Thereby, the spout 23 is held by the holding tube 91.
  • a frame part 93 is provided at the rear side (the outside in the front-and-rear direction) of the holding tube 91.
  • the frame part 93 has a square frame shape.
  • the frame part 93 covers an outer circumference of the discharge port 43 of the spout 23.
  • the frame part 93 is opened to the rear side (the outside in the front-and-rear direction).
  • a bottom face 94 of the frame part 93 of the outer cover part 62 is inclined downward from the front side (the inside in the front-and-rear direction) to the rear side (the outside in the front-and-rear direction).
  • the bottom face 94 of the frame part 93 includes a center portion 94a positioned below the discharge port 43 of the spout 23 when viewed from the rear side (the outside in the front-and-rear direction) and both corner portions 94b and 94c positioned at both sides in the left-and-right direction of the center portion 94a.
  • the center portion 94a is formed to be flat.
  • Both the corner portions 94b and 94c include the outer corner portion 94b positioned at the left side (the outside in the left-and-right direction) of the center portion 94a and the inner corner portion 94c positioned at the right side (the inside in the left-and-right direction) of the center portion 94a.
  • the outer corner portion 94b is curved upward to the left side (the side separate from the center portion 94a) when viewed from the rear side (the outside in the front-and-rear direction).
  • the inner corner portion 94c is formed to be flat.
  • the liquid absorbing sheet 26 of each ink container 10 is formed by non-woven fabric containing polyester fiber, for example.
  • the liquid absorbing sheet 26 has a sheet shape, and has flexibility.
  • the liquid absorbing sheet 26 is adhered on the center portion 94a and both the corner portions 94b and 94c of the bottom face 94 of the frame part 93 of the outer cover part 62.
  • the IC tag 27 of each ink container 10 has a square plate shape.
  • the IC tag 27 is bonded to the rear face (the face at the outside in the front-and-rear direction) of the pedestal part 72 of the outer cover part 62 and fixed thereto.
  • the IC tag 27 is positioned at a rear end portion (an end portion at the outside in the front-and-rear direction) of each ink container 10.
  • the supply port 16 of the attachment part 9 is connected to the cap 32 of the spout 23 and the needle 17 of the attachment part 9 presses the first valve body 33 of the spout 23. Consequently, the first valve body 33 of the spout 23 is moved from the first closing position (refer to the dotted line in FIG. 5 ) to the first opening position (refer to the solid line in FIG. 5 ) against biasing force of the first spring 45 so that the discharge port 43 of the spout 23 is opened.
  • the ink stored in the ink pack 22 is flowed in the discharge cylindrical part 42 of the cap 32 through the communication port 47 of the spout 23.
  • the ink flowed in the discharge cylindrical part 42 of the cap 32 is discharged through the discharge port 43 of the spout 23 outside the ink container 10 and supplied to the supply port 16 of the attachment part 9.
  • the ink supplied to the supply port 16 of the attachment part 9 is supplied to the recording head 7 of the line head 6 through the pipe 11.
  • the IC tag 27 of the ink container 10 faces the communication board 15 of the attachment part 9 via a space (refer to FIG. 10 ) .
  • RFID radio frequency identification
  • each ink container 10 is attached to the corresponding attachment part 9 in the above described manner, the pin 12 of the attachment part 9 is engaged with the engagement groove 88 of the groove part 84 of the ink container 10 (refer to FIG. 10 ). This allows each ink container 10 to be positioned to the corresponding attachment part 9.
  • the bosses 13 of the attachment part 9 are engaged with the engagement ribs 89 of the ink container 10 (refer to FIG. 10 ). This inhibits a tilt of each ink container 10 in the left-and-right direction with respect to the corresponding attachment part 9.
  • the outer circumferential face 61a of the inner cover part 61 is bonded to the inside faces of the flaps 58 of the case 24. If such a configuration is applied, when each ink container 10 is attached to the corresponding attachment part 9, there is a fear that each flap 58 touches a part of the attachment part 9 and is rolled up, and the bonded portion Y of the inside faces of the flaps 58 and the outer circumferential face 61a of the inner cover part 61 (hereinafter, simply called “the bonded portion Y”) may be separated.
  • the protection rib 78 which covers the bonded portion Y from the rear side (the outside in the front-and-rear direction) is protruded.
  • the plurality of reinforcement ribs 79a and the plurality of reinforcement ribs 79b which are formed continuously with the second ribs 77a and 77b are protruded at the rear side (the outside in the front-and rear direction) of the second ribs 77a and 77b, respectively. Additionally, a protruded height of each of the reinforcement ribs 79a and 79b is increased from the rear side (the outside in the front-and-rear direction) to the front side (the inside in the front-and-rear direction).
  • each of the second ribs 77a and 77b extends in the left-and-right direction (the direction perpendicular to the front-and-rear direction), and the plurality of reinforcement ribs 79a and the plurality of reinforcement ribs 79b are provided at intervals in the left-and-right direction.
  • the plurality of extension ribs 80 formed continuously with the plurality of reinforcement ribs 79b is protruded at the rear side (the outside in the front-and-rear direction) of the reinforcement ribs 79b, and each extension rib 80 extends along the front-and-rear direction.
  • the protection rib 78 is constituted by the first ribs 66a and 66b protruded on the outer circumferential face 61a of the inner cover part 61 and the second ribs 77a and 77b protruded on the outer circumferential face 62a of the outer cover part 62.
  • the second ribs 77a and 77b at a portion where it is difficult to provide the first ribs 66a and 66b and to provide the first ribs 66a and 66b at a portion where it is difficult to provide the second ribs 77a and 77b.
  • the protection rib 78 includes areas M and N whose positions in the left-and-right direction or the upper-and-lower direction (the direction perpendicular to the front-and-rear direction) are overlapped with positions in the left-and-right direction or the upper-and-lower direction of the hooks 76a and 76b, and the areas M and N are constituted by the first ribs 66a and 66b, respectively.
  • the through holes 64a and 64b are provided, and the hooks 76a and 76b penetrate through the through holes 64a and 64b, respectively.
  • first rib 66a and the second ribs 77a extend along the left-and-right direction, and the second ribs 77a are arranged on a linear line with the first rib 66a.
  • the case 24 has a square tube shape
  • the cover 25 has a square frame shape
  • the four faces constituting the outer circumferential face 25a of the cover 25 are bonded to the rear end portion 24a of the case 24 and the protection rib 78 is protruded from each of the four faces constituting the outer circumferential face 25a of the cover 25.
  • the image forming apparatus 1 includes the ink containers 10 and the attachment parts 9 to which the respective ink containers 10 are detachably attached. By applying such a configuration, it becomes possible to provide the image forming apparatus 1 capable of inhibiting the bonded portion Y from being separated.
  • the recess 75a is provided above the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction). It is highly possible that the operator who replaces each ink container 10 places his finger to the recess 75a in order to prevent slipping of his hand. When the operator places his finger to the recess 75a, a possibility that the IC tag 27 positioned below the recess 75a when viewed from the rear side is covered with his hand is increased so that it becomes possible to reduce the possibility that the IC tag 27 may be damaged.
  • the fitting groove 65a is provided, and on the front face (the face at the inside in the front-and-rear direction) of the outer cover part 62, the hook 76a engaged with the fitting groove 65a is provided above the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • connection ribs 71a are protruded, and the left side face of the pedestal part 72 is connected to the connection ribs 71.
  • a width in the left-and-right direction of the recess 75a is wider than a width in the left-and-right direction of the pedestal part 72.
  • the groove part 84 is provided below the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • the image forming apparatus 1 includes the ink containers 10 and the attachment parts 9 to which the respective ink containers 10 are detachably attached. By applying such a configuration, it becomes possible to provide the image forming apparatus 1 capable of reducing a possibility that the IC tag 27 may be damaged.
  • the groove part 84 is provided below the IC tag 27 when viewed from the rear side (the outside in the front-and-rear direction).
  • the pin 12 of the attachment part 9 is engaged with the engagement groove 88 of the groove part 84 so that the ink container 10 is positioned with respect to the attachment part 9.
  • the liquid absorbing sheet 26 may be bonded to the bottom face 94 of the frame part 93 in a flat plate shape. Then, the ink absorbed in the liquid absorbing sheet 26 may be easily leaked from both end portions in the left-and-right direction of the liquid absorbing sheet 26, and the leaked ink may contaminate the ink container 10 and its periphery.
  • the outer corner portion 94b of the bottom face 94 of the frame part 93 is curved upward to the left side (the side separate from the center portion 94a) when viewed from the rear side (the outside in the front-and-rear direction).
  • the left end portion of the liquid absorbing sheet 26 is bonded to the bottom face 94 of the frame part 93 in a curved state. Then, it becomes possible to inhibit the ink absorbed in the liquid absorbing sheet 26 from being leaked from the left end portion of the liquid absorbing sheet 26 and to inhibit the ink container 10 and its periphery from being contaminated with the leaked ink.
  • center portion 94a of the bottom face 94 of the frame part 93 is formed to be flat.
  • the outer corner portion 94b of the bottom face 94 of the frame part 93 is curved upward when viewed from the rear side (the outside in the front-and-rear direction) and the inner corner portion 94c of the bottom face 94 of the frame part 93 is formed to be flat.
  • the frame part 93 is opened to the rear side (the outside in the front-and-rear direction), and the bottom face 94 of the frame part 93 is inclined downward from the front side (the inside in the front-and-rear direction) to the rear side (the outside in the front-and-rear direction). If such a configuration is applied, because the ink leaked from both the end portions in the left-and-right direction of the liquid absorbing sheet 26 is easily leaked through the bottom face 94 of the frame part 93 outside the cover 25, using the above described configuration provides a high advantage for inhibiting the ink leakage.
  • liquid absorbing sheet 26 is bonded to the center portion 94a and both the corner portions 94b and 94c of the bottom face 94 of the frame part 93.
  • the image forming apparatus 1 includes the ink containers 10 and the attachment parts 9 to which the respective ink containers 10 are attached. By applying such a configuration, it becomes possible to provide the image forming apparatus 1 capable of inhibiting the ink containers 10 and their peripheries from being contaminated with the ink leaked from the liquid absorbing sheet 26.
  • the rear end portion 24a of the case 24 formed in a square cylindrical shape be bonded to the outer circumferential face 61a of the inner cover part 61.
  • the rear end portion 24a of the case 24 may not be bonded to the four faces constituting the outer circumferential face 61a of the inner cover part 61 surely.
  • the slits 57 are provided at the four corners of the rear end portion 24a of the case 24, the slits 57 are provided.
  • the four flaps 58 are provided between the adjacent slits 57, and at the front end portion (the end portion at the inside in the front-and-rear direction) of each flap 58, the folding line 59 is provided along the left-and-right direction or the upper-and-lower direction (perpendicular to the front-and-rear direction).
  • the depressions 67 are provided, and on the front face (the face at the inside in the front-and-rear direction) of the outer cover part 62, the protruding pieces 69 engaged with the depressions 67 are provided.
  • the fitting projection 68 is protruded, and in each protruding piece 69 of the outer cover part 62, the fitting hole 70 fitted to the fitting projection 68 is provided.
  • the case 24 is formed by a sheet of paper 51.
  • the paper 51 includes the corrugated cardboard layer 52 and the coated cardboard layer 53 covering the surface of the corrugated cardboard layer 52.
  • the image forming apparatus 1 includes the ink containers 10 and the attachment parts 9 to which the respective ink containers 10 are detachably attached. By applying such a configuration, it becomes possible to provide the image forming apparatus 1 capable of bonding the rear end portion 24a of the case 24 to the cover 25 surely.
  • the inner cover part 61 and the outer cover part 62 of the cover 25 are provided separately.
  • the inner cover part 61 and the outer cover part 62 of the cover 25 may be formed integrally.
  • the first ribs 66a and 66b of the inner cover part 61 and the second ribs 77a and 77b of the outer cover part 62 constitute the protection rib 78.
  • the protection rib 78 may be constituted by the rib of the inner cover part 61 only or the rib of the outer cover part 62 only.
  • the outer corner portion 94b of the bottom face 94 of the frame part 93 is curved upward when viewed from the rear side (the outside in the front-and-rear direction) and the inner corner portion 94c of the bottom face 94 of the frame part 93 is formed to be flat.
  • both the corner portions 94b and 94c of the bottom face 94 of the frame part 93 may be curved upward when viewed from the rear side (the outside in the front-and-rear direction).
  • the first fitting part is constituted by the fitting grooves 65a and 65b
  • the second fitting part is constituted by the hooks 76a and 76b.
  • the first fitting part may be constituted by the hooks 76a and 76b
  • the second fitting part may be constituted by the fitting grooves 65a and 65b.
  • a color printer is employed as an example of the image forming apparatus 1.
  • a monochrome printer, a copying machine, a facsimile, a multifunctional peripheral an image forming apparatus multiply including a printing function, a copying function, a facsimile function and the others
  • a multifunctional peripheral an image forming apparatus multiply including a printing function, a copying function, a facsimile function and the others

Landscapes

  • Ink Jet (AREA)
EP19156357.6A 2018-06-14 2019-02-11 Tintenbehälter und bilderzeugungsvorrichtung Active EP3581387B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018113621A JP7063135B2 (ja) 2018-06-14 2018-06-14 キャップ、インクコンテナ及び画像形成装置
JP2018209743A JP7225698B2 (ja) 2018-11-07 2018-11-07 インク容器及び画像形成装置

Publications (2)

Publication Number Publication Date
EP3581387A1 true EP3581387A1 (de) 2019-12-18
EP3581387B1 EP3581387B1 (de) 2021-08-04

Family

ID=65408923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19156357.6A Active EP3581387B1 (de) 2018-06-14 2019-02-11 Tintenbehälter und bilderzeugungsvorrichtung

Country Status (1)

Country Link
EP (1) EP3581387B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014213565A (ja) * 2013-04-26 2014-11-17 京セラドキュメントソリューションズ株式会社 液体容器およびこれを備えたインクジェット式画像形成装置
WO2017014779A1 (en) * 2015-07-22 2017-01-26 Hewlett-Packard Development Company, L.P. Printing fluid container
US9827775B2 (en) * 2016-02-10 2017-11-28 Riso Kagaku Corporation Ink cartridge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014213565A (ja) * 2013-04-26 2014-11-17 京セラドキュメントソリューションズ株式会社 液体容器およびこれを備えたインクジェット式画像形成装置
WO2017014779A1 (en) * 2015-07-22 2017-01-26 Hewlett-Packard Development Company, L.P. Printing fluid container
US9827775B2 (en) * 2016-02-10 2017-11-28 Riso Kagaku Corporation Ink cartridge

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