EP3153320A1 - Liquid supply apparatus - Google Patents
Liquid supply apparatus Download PDFInfo
- Publication number
- EP3153320A1 EP3153320A1 EP16191131.8A EP16191131A EP3153320A1 EP 3153320 A1 EP3153320 A1 EP 3153320A1 EP 16191131 A EP16191131 A EP 16191131A EP 3153320 A1 EP3153320 A1 EP 3153320A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- posture
- cartridge
- cover
- locking
- 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
Links
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- 238000003780 insertion Methods 0.000 claims description 69
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- 238000001514 detection method Methods 0.000 description 30
- 238000007789 sealing Methods 0.000 description 19
- 230000003014 reinforcing effect Effects 0.000 description 14
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- 238000003825 pressing Methods 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Images
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
-
- 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
- B41J2/17513—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
-
- 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
- B41J2/17553—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
- B41J2/17566—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
- 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
- B41J2002/17576—Ink level or ink residue control using a floater for ink level indication
Definitions
- the cover includes an abutment portion.
- the abutment portion is configured to abut on the rear surface of the liquid cartridge to move the liquid cartridge in the second posture in the first direction until the liquid cartridge reaches a position where the first portion is capable of abutting on the protrusion.
- the case 101 which constitutes a wall of the cartridge attaching unit 110, has a box-like shape that has a top surface that defines a top part of an internal space of the case 101, a bottom surface that defines a bottom part of the internal space, an end surface connecting the top part and the bottom part together, and the opening 112.
- the opening 112 is positioned to confront the end surface in the insertion direction 51 and removal direction 52, and the opening112 can be exposed to a user interface surface of the printer 10.
- the interface surface is the surface which the user confronts when using the printer 10.
- the ink cartridge 30 is inserted into and removed from the case 101 through the opening 112.
- Guide grooves 109 are formed at the top surface and bottom surface.
- the cover 108 is pivotally movable about a pivot axis 115.
- the pivot axis 115 extends in parallel with a mounting surface on which the printer 10 is mounted, that is, the pivot axis 115 extends in a horizontal direction. In the present embodiment, the pivot axis 115 extends in the rightward direction 55 and the leftward direction 56.
- the cover 108 has an outer shape in conformance with a size of the opening 22. More specifically, the outer shape of the cover 108 is generally rectangular capable of covering the opening 22.
- the cover 108 has a closed posture closing the opening 22 of the casing 14. As illustrated in Fig. 8 , the ink cartridge 30 cannot be removed from and inserted into the cartridge attaching unit 110 when the cover 108 is at its closed posture.
- the engagement portion 123 is tapered toward its tip as viewed in the leftward direction 56 or the rightward direction 55.
- the engagement portion 123 includes a distal end face 120 and a guide surface 124.
- the distal end face 120 is positioned farther from the pivot axis 115 than the guide surface 124 to the pivot axis 115, that is, the distal end face 120 is positioned above the guide surface 124 at the closed posture of the cover 108.
- the distal end face 120 expands in the downward direction 53 and the upward direction 54 when the cover 108 is at its closed posture. In the other words, the distal end face 120 has a dimension in the downward direction 53 and the upward direction 54 when the cover 108 is at its closed posture.
- the ink cartridge 30 illustrated in Figs. 3 through 6 is a vessel in which ink is retained.
- a space formed in the ink cartridge 30 is the retaining chamber 36 (an example of a liquid retaining chamber).
- the retaining chamber 36 is defined by an internal frame 35 accommodated in a rear cover 31 and a front cover 32, those forming an outer shape of the ink cartridge 30.
- the retaining chamber 36 can be defined by the rear cover 31 and the front cover 32.
- a guide surface 89 extends from the manipulation surface 92 and is positioned backward of the manipulation surface 92 in the backward direction 58.
- the guide surface 89 faces in the backward direction 58 and the upward direction 54.
- the guide surface 89 is a surface accessible to the engagement portion 123 of the protrusion 121 of the cover 108 in the insertion direction 51.
- the front cover 32 is box shaped having side surfaces 143 and 144, the upper surface 141, and the lower surface 142.
- the side surfaces 143 and 144 are spaced away from each other in the rightward direction 55 and the leftward direction 56 and extend from the front surface 140 in the backward direction 58.
- the upper surface 141 and lower surface 142 are spaced away from each other in the downward direction 53 and the upward direction 54 and extend from the front surface 140 in the backward direction 58.
- the front cover 32 has an open end opening backward in the backward direction 58.
- the internal frame 35 is inserted into the front cover 32 through the open end. That is, the front cover 32 covers a front portion of the internal frame 35 which is not covered by the rear cover 31.
- the upper surface 141 of the front cover 32 forms the upper surface of the ink cartridge 30 together with the upper surface 39 of the rear cover 31, and the lower surface 142 of the front cover 32 forms the lower surface of the ink cartridge 30 together with the lower surface 42 of the rear cover 31.
- the ink supply opening 71 is closed and opened by the valve body 77.
- the coil spring 78 is adapted to bias the valve body 77 in the forward direction 57. Therefore, the valve body 77 closes the ink supply opening 71 of the sealing member 76 in a state where no external force is applied.
- the detection member 59 has a float 63 whose specific gravity is lower than that of the ink retained in the retaining chamber 36. Therefore, the float 63 generates buoyancy while the float 63 is in the ink in the retaining chamber 36.
- the detection member 59 is pivotally moved in the counterclockwise direction in Fig. 6 because of the buoyancy of the float 63.
- a portion of the detection member 59 is entered the interior of the detection portion 62, and is in contact with a wall defining a forward end of the detection portion 62 in the forward direction 57. Consequently, the pivot posture of the detection member 59 can be maintained.
- the detection member 59 shuts off the light emitted from the sensor 103, and performs other processing on the light, the light being configured to advance through the detection portion 62 in the rightward direction 55 or the leftward direction 56.
- the cap 79 in the ink supply portion 34 starts to enter the cylindrical guide 105. Further, the recess 96 of the front cover 32 faces the rod 125, and the rod 125 starts to enter the recess 96.
- the abutment portion 126 is brought into abutment with the lower portion 41L of the rear surface 41 of the ink cartridge 30 that is in the unlocked state by the pivotal movement of the cover 108 from its open posture toward its closed posture.
- the ink cartridge 30 is pushed in the insertion direction 51 by the abutment portion 126 as illustrated in Fig. 16 , so that the unlocked ink cartridge 30 is moved in the insertion direction 51 to a position where the manipulation portions 90 can abut on the protrusions 121.
- the ink supply apparatus 100 is capable of enabling the user to recognize the unlocked state of the ink cartridge 30 relative to the cartridge attaching unit 110 through opening and closing operation of the cover 108, and also is capable of preventing the ink cartridge 30 from being released or unlocked relative to the cartridge attaching unit 110 from the locked state of the ink cartridge 30 in a state where the cover 108 is closed.
Landscapes
- Ink Jet (AREA)
Abstract
Description
- The present invention relates to a liquid supply apparatus having a cartridge attaching portion to which a liquid cartridge is attachable, and a cover that opens and closes an opening of the cartridge attaching portion.
- An ink jet recording device is known in which an ink retained in an ink vessel is ejected from a nozzle to form an image on an image recording medium. An ink cartridge is detachably attached to the ink jet recording device so that the old cartridge can be replaced by a new cartridge each time the ink in the old ink cartridge is consumed up.
- For example, Japanese Patent Application Publication No.
2002-508720 ink vessel 12 is detachable from and attachable to aprinter 86. Incidentally, reference numerals mentioned herein are those described in the JP '720 publication. More specifically, theink vessel 12 is provided with anengagement mechanism 62. In a state where theink vessel 12 is inserted into theprinter 86, theink vessel 12 can be subjected to accurate positioning in theprinter 86 against biasing forces ofsprings engagement mechanism 62 with anengaging mechanism 76 of theprinter 86. - Japanese Patent Application Publication No.
2005-74979 ink cartridge 22 is inserted to a predetermined position in acartridge accommodating portion 59, acover 57 can be closed without mechanical interference between a cartridge-side interference portion 44 and a cover-side interference portion 75. On the other hand, in a state where theink cartridge 22 does not reach the predetermined position, thecover 57 cannot be closed due to mechanical interference between the cartridge-side interference portion 44 and the cover-side interference portion 75. - According to the JP'720 publication, the
ink vessel 12 cannot be moved outside of theprinter 86 by the biasing forces of thesprings ink vessel 12 is pivotally moved in theprinter 86 from a posture at which theengagement mechanism 62 and theengaging mechanism 76 are engaged with each other to a posture at which theseengaging mechanisms ink vessel 12 has been subjected to positioning in theprinter 86, theink vessel 12 is desirably pivotally moved easily to the posture at which theseengaging mechanisms printer 86. On the other hand, if theink vessel 12 were able to be easily pivotally moved to the posture at which theengaging mechanisms ink vessel 12 may be accidentally released from theprinter 86 due to application of impact or vibration in spite of the fact that the user does not intend to take out theink vessel 12 out of theprinter 86. - According to the JP'979 publication, a user can recognize the fact that the
ink cartridge 22 has not been inserted to the predetermined position in thecartridge accommodating portion 59, because of the reason that thecover 57 cannot be closed. However, the above-described accidental release of theink cartridge 22 against the use's intension cannot be prevented. - It is therefore, an object of the present invention to provide a liquid supply apparatus capable of enabling a user to recognize unlocked state of the liquid cartridge relative to a cartridge attaching portion through opening and closing operation of the cover, and also capable of preventing the liquid cartridge from being released or unlocked relative to the cartridge attaching portion from the locked state of the liquid cartridge in a state where the cover is closed.
- This and other objects will be attained by providing a liquid supply apparatus to which a liquid cartridge is attachable by an insertion of the liquid cartridge in a first direction against a biasing force directed in a second direction opposite to the first direction. The liquid cartridge includes a liquid retaining chamber, a front surface, a rear surface, a side surface, a liquid supply portion, a locking surface, a recess, and a first portion. The front surface faces in the first direction in a state of the insertion. The rear surface is disposed opposite to the front surface. The liquid retaining chamber is interposed between the rear surface and the front surface. The side surface extends between the front surface and the rear surface. The liquid supply portion is provided at the front surface. The locking surface is provided at the side surface. The recess opens in the second direction. The first portion is accessible from an outside of the liquid cartridge in the first direction. The liquid supply apparatus includes an attaching portion having an opening through which the liquid cartridge is inserted into the attaching portion. The attaching portion includes a liquid supply tube, a locking portion, and a cover. The liquid supply tube is configured to be inserted into the liquid supply portion. The locking portion is configured to be abutted on the locking surface. The cover is pivotally movable between an open posture opening the opening and a closed posture closing the opening. The cover has a second portion and a protrusion protruding from the second portion. In a state where the liquid supply tube is inserted into the liquid supply portion, the liquid cartridge is pivotally movable in the attaching portion between a first posture and a second posture. The locking surface of the liquid cartridge in the first posture is in confrontation with and capable of abutting on the locking portion in the first direction and the second direction. The locking surface of the liquid cartridge in the second posture is not in confrontation with the locking portion in the first direction and the second direction. The liquid cartridge in the first posture is brought into a locked state where the liquid cartridge is locked relative to the attaching portion by abutment of the locking surface with the locking portion in the second direction against the biasing force. The protrusion of the cover in the closed posture is accommodated in the recess of the liquid cartridge in the locked state and prevents the liquid cartridge in the locked state from moving toward the second posture. In a state where the liquid cartridge is in the second posture in the attaching portion and in a process of the pivotal movement of the cover from the open posture toward the closed posture, the protrusion of the cover abuts on the first portion to move the liquid cartridge in the first direction until the locking surface is positioned further in the first direction relative to the locking portion while the cover holds the liquid cartridge to prevent the liquid cartridge from changing its posture to the first posture. The following relationship in lengths is provided such that L3 > L4, and L3 = L1 - L2. L1 is a distance between a rear end of the first portion and the second portion in the first direction in a state where the protrusion is in abutment with the first portion and the locking surface is positioned at a stroke end position. The locking surface moves past the locking portion in the first direction to reach the stroke end position of the locking surface during the pivotal movement of the cover from the open posture toward the closed posture. L2 is a distance between the locking surface and a front end of the locking portion in the first direction in the state where the protrusion is in abutment with the first portion and the locking surface is positioned at the stroke end position. L4 is a distance between the rear end of the first portion and the second portion in the first direction in a state where the protrusion of the cover in the closed posture is accommodated in the recess of the liquid cartridge in the locked state.
- Preferably, the protrusion has an tip end on which an engagement portion is provided. The tip end is configured to abut on the first portion. The engagement portion is configured to engage the first portion. The first portion in abutment with the tip end is in engagement with the engagement portion. The engagement portion in engagement with the first portion prevents the liquid cartridge from changing its posture toward the first posture.
- Preferably, the engagement portion has a guide surface configured to guide the first portion. The guide surface of the engagement portion in abutment with the first portion guides the first portion such that the liquid cartridge changes its posture toward the second posture.
- Preferably, the side surface of the liquid cartridge is provided with a manipulation surface and a sub-side surface. The manipulation surface is disposed at a position closer to the rear surface than the locking surface to the rear surface. The sub-side surface overlaps with the manipulation surface when viewed in a direction perpendicular to the side surface. The recess is defined between the manipulation surface and the sub-side surface.
- Preferably, the liquid cartridge is provided with a rib extending from the sub-side surface to a back surface of the manipulation surface in the recess.
- Preferably, a plurality of cartridges are attachable to the attaching portion. The plurality of liquid cartridges attached to the attaching portion are arrayed in a direction perpendicular to the first direction. The protrusion is accommodated between the neighboring ribs of the neighboring liquid cartridges that are in the locked state.
- Preferably, the cover includes an abutment portion. During the pivotal movement of the cover from the open posture toward the closed posture, the abutment portion is configured to abut on the rear surface of the liquid cartridge to move the liquid cartridge in the second posture in the first direction until the liquid cartridge reaches a position where the first portion is capable of abutting on the protrusion.
- Preferably, the cover in the closed posture is locked and prevented from pivotally moving toward the open posture. In a state where the protrusion is in abutment with the first portion and the locking surface is positioned at the stroke end position, the locking of the cover is prevented.
- Preferably, the first direction is a horizontal direction. The side surface is an upper surface, which faces upward, of the liquid cartridge inserted in the attaching portion. The locking surface of the liquid cartridge in the second posture is positioned below the locking portion and the first portion of the liquid cartridge in the second posture is positioned above the recess. The attaching portion further includes a pivot axis about which the cover is pivotally movable. The pivot axis extends in the horizontal direction and is positioned below the protrusion of the cover in the closed posture.
- The particular features and advantages of the embodiment(s) as well as other objects will become apparent from the following description taken in connection with the accompanying drawings, in which:
-
Fig. 1 is a schematic cross-sectional view schematically illustrating an internal structure of aprinter 10 having acartridge attaching unit 110 according to an embodiment; -
Fig. 2 is a front view illustrating an outside shape of thecartridge attaching unit 110 according to the embodiment; -
Fig. 3A is a perspective view illustrating an outside shape of anink cartridge 30 when viewed from the front and above; -
Fig. 3B is a perspective view illustrating the outside shape of theink cartridge 30 when viewed from the front and below; -
Fig. 4A is a perspective view illustrating the outside shape of theink cartridge 30 when viewed from the back and above; -
Fig. 4B is a perspective view illustrating the outside shape of theink cartridge 30 when viewed from the back and below; -
Fig. 5 is a side view of theink cartridge 30; -
Fig. 6 is a longitudinal cross-sectional view illustrating an internal structure of theink cartridge 30; -
Fig. 7A is a plan view of theink cartridge 30 when viewed in adownward direction 53; -
Fig. 7B is a rear view of theink cartridge 30 when viewed in aforward direction 57; -
Fig. 8 is a perspective view illustrating a portion ambient to acover 108 with its closed state in thecartridge attaching unit 110 according to the embodiment; -
Fig. 9 is a perspective view illustrating the portion ambient to thecover 108 with its open state in thecartridge attaching unit 110 according to the embodiment; -
Fig. 10 is a longitudinal cross-sectional view of theink cartridge 30 andcartridge attaching unit 110, indicating a state in which theink cartridge 30 is started to be inserted into thecartridge attaching unit 110; -
Fig. 11 is a longitudinal cross-sectional view of theink cartridge 30 andcartridge attaching unit 110, indicating a state in which anink supply portion 34 starts to enter aguide 105 and arod 125 starts to enter arecess 96 in afront cover 32; -
Fig. 12 is a longitudinal cross-sectional view of theink cartridge 30 andcartridge attaching unit 110, indicating a state in which anink needle 102 has entered anink supply opening 71 in theink supply portion 34; -
Fig. 13 is a longitudinal cross-sectional view of theink cartridge 30 andcartridge attaching unit 110, indicating a state in which theink cartridge 30 is locked relative to thecartridge attaching unit 110; -
Fig. 14 is a cross-sectional view of thecartridge attaching unit 110 with an open posture of thecover 108; -
Fig. 15 is a cross-sectional view of thecartridge attaching unit 110 with a closed posture of thecover 108; -
Fig. 16 is a cross-sectional view illustrating a state where aprotrusion 121 and anabutment portion 126 of thecover 108 are in abutment with theink cartridge 30 when theink cartridge 30 is positioned with its second posture in thecartridge attaching unit 110; and -
Fig. 17 is a cross-sectional view illustrating a state where theprotrusion 121 of thecover 108 is in abutment with theink cartridge 30 and alocking surface 151 is at its terminal position when theink cartridge 30 is positioned with its second posture in thecartridge attaching unit 110. - An embodiment will be described with reference to the drawings. The embodiment described below is only an example of realizing the present invention, and it will be appreciated that the embodiment can be appropriately changed without departing from the intended scope of the present invention. In the description below, a direction in which an
ink cartridge 30 is inserted into acartridge attaching unit 110 will be defined as an insertion direction (an example of a first direction) 51, and a direction opposite to theinsertion direction 51, that is, a direction in which theink cartridge 30 is removed from thecartridge attaching unit 110, will be defined as a removal direction (an example of a second direction) 52. In this embodiment, theinsertion direction 51 andremoval direction 52 are horizontal. However, theinsertion direction 51 andremoval direction 52 may not be horizontal. The direction of force of gravity will be defined as adownward direction 53, a direction opposite to the direction of force of gravity will be defined as anupward direction 54. Directions orthogonal to theinsertion direction 51 anddownward direction 53 will be defined as arightward direction 55 and aleftward direction 56. Specifically, in a state in which theink cartridge 30 has been inserted to an attached position in thecartridge attaching unit 110, that is, in a state in which theink cartridge 30 is in an attachment posture (an example of a first posture), when theink cartridge 30 is viewed in theremoval direction 52, a direction extending to the right will be defined in therightward direction 55 and a direction extending to the left will be theleftward direction 56. Theinsertion direction 51 may be referred to as aforward direction 57 and theremoval direction 52 may be referred to as abackward direction 58. - As illustrated in
Fig. 1 , theprinter 10 records an image by selectively expelling ink droplets to a recording sheet according to an inkjet recording method. Theprinter 10 includes arecording head 21, anink supply apparatus 100, and anink tube 20 that interconnects therecording head 21 and theink supply apparatus 100. Theink supply apparatus 100 includes the cartridge attaching unit 110 (an example of an attaching portion). In thecartridge attaching unit 110, the ink cartridge 30 (an example of a liquid cartridge) can be attached. Thecartridge attaching unit 110 has anopening 112 in its one face. Theink cartridge 30 is inserted into thecartridge attaching unit 110 through theopening 112 in theinsertion direction 51 and is removed from thecartridge attaching unit 110 in theremoval direction 52. - Ink (an example of a liquid) that can be used in the
printer 10 is retained in theink cartridge 30. In a state in which theink cartridge 30 has been attached to thecartridge attaching unit 110, theink cartridge 30 is connected to therecording head 21 through theink tube 20. A sub-tank 28 is provided in therecording head 21. The sub-tank 28 temporarily retains ink supplied through theink tube 20. Therecording head 21 selectively expels, fromnozzles 29, ink supplied from the sub-tank 28 in accordance with the inkjet recording method. Specifically, a driving voltage is selectively applied from a head control circuit board (not shown) provided in therecording head 21 to eachpiezoelectric device 29A provided in correspondence to onenozzle 29. - The
printer 10 includes afeed tray 15, asupply roller 23, a conveyroller pair 25, aplaten 26, adischarge roller pair 27, and adischarge tray 16. A recording sheet is supplied by thesupply roller 23 from thefeed tray 15 to a conveyingpath 24, after which the recording sheet is conveyed by the conveyroller pair 25 onto theplaten 26. Therecording head 21 selectively expels ink to the recording sheet passing on theplaten 26. Thus, an image is recorded on the recording sheet. After having passed theplaten 26, the recording sheet is discharged by thedischarge roller pair 27 to thedischarge tray 16 disposed at the downstream end of the conveyingpath 24. - As illustrated in
Fig. 1 , the ink supply apparatus 100 (as an example of liquid supply apparatus) is provided in theprinter 10. Theink supply apparatus 100 is adapted to supply ink to therecording head 21 provided in theprinter 10. Theink supply apparatus 100 has thecartridge attaching unit 110 to which theink cartridge 30 can be attached. Incidentally,Fig. 1 illustrates a state in which theink cartridge 30 has been attached to thecartridge attaching unit 110, that is,Fig. 1 illustrates a state in which theink cartridge 30 is in the attachment posture (first posture). - As illustrated in
Figs. 2 and9 , thecartridge attaching unit 110 includes acase 101, ink needles 102,sensors 103,electrical contacts 106, lockingportions 145, and acover 108. Thecartridge attaching unit 110 is adapted to accommodate fourink cartridges 30, which correspond to cyan, magenta, yellow, and black. The fourink cartridges 30 are arrayed in a direction perpendicular to theinsertion direction 51 in a state where the fourink cartridges 30 are accommodated in thecartridge attaching unit 110. Oneink needle 102, onesensor 103, and fourelectrical contacts 106 are provided corresponding to each of the fourink cartridges 30. - The
case 101, which constitutes a wall of thecartridge attaching unit 110, has a box-like shape that has a top surface that defines a top part of an internal space of thecase 101, a bottom surface that defines a bottom part of the internal space, an end surface connecting the top part and the bottom part together, and theopening 112. Theopening 112 is positioned to confront the end surface in theinsertion direction 51 andremoval direction 52, and the opening112 can be exposed to a user interface surface of theprinter 10. The interface surface is the surface which the user confronts when using theprinter 10. Theink cartridge 30 is inserted into and removed from thecase 101 through theopening 112.Guide grooves 109 are formed at the top surface and bottom surface. Theink cartridge 30 can be inserted in theinsertion direction 51 andremoval direction 52 inFig. 10 by guiding the upper edge and lower edge of theink cartridge 30 along theguide grooves 109. Threeplates 104 are provided in thecase 101 for partitioning the internal space into four spaces each elongated vertically. Oneink cartridge 30 is accommodated in each of these spaces partitioned by theplates 104. - As illustrated in
Figs. 1 and2 , the ink needle 102 (an example of a liquid supply tube) is provided at a lower portion of the end surface of thecase 101. Theink needle 102 is tubular in shape and made from resin. Theink needle 102 is disposed at a position corresponding to an ink supply portion 34 (an example of a liquid supply portion) of theink cartridge 30 in the state of attachment of theink cartridge 30 to thecartridge attaching unit 110. Theink needle 102 protrudes from the end surface of thecase 101 in theremoval direction 52. - The
cylindrical guide 105 is provided around theink needle 102. Theguide 105 protrudes from the end surface of thecase 101 in theremoval direction 52. The protrusion end of theguide 105 is open. Theink needle 102 is disposed at the center of theguide 105. In other words, theink needle 102 is disposed concentrically with theguide 105. Theguide 105 is shaped so as to conform with the shape of theink supply portion 34 of theink cartridge 30 so that theink supply portion 34 can be advanced into theguide 105. - In the process of the insertion of the
ink cartridge 30 into thecartridge attaching unit 110 in theinsertion direction 51, that is, in the process of the movement of theink cartridge 30 to the attached position, theink supply portion 34 of theink cartridge 30 enters the guide 105 (seeFig. 12 ). When theink cartridge 30 is further inserted into thecartridge attaching unit 110 in theinsertion direction 51, theink needle 102 is inserted into an ink supply opening 71 (Fig. 6 ) formed in theink supply portion 34. Thus, a valve body 77 (Fig. 6 ) in theink supply portion 34 is moved. As a result, theink needle 102 andink supply portion 34 are connected with each other. Then, ink retained in a retaining chamber 36 (Fig. 6 ) formed in theink cartridge 30 flows into theink tube 20 connected to theink needle 102 through an internal space of acylindrical wall 73 formed in theink supply portion 34 and the internal space of theink needle 102. Incidentally, the end face of theink needle 102 can be flat or pointed. - As illustrated in
Figs. 2 and10 , the lockingportion 145 extends in theleftward direction 56 and therightward direction 55 of thecase 101 in the vicinity of the top surface of thecase 101 and in the vicinity of theopening 112. The lockingportion 145 is a rod-like member extending in theleftward direction 56 and therightward direction 55. The lockingportion 145 is, for example, a metal cylinder. Both ends of the lockingportion 145 in theleftward direction 56 and therightward direction 55 are secured to walls that define both ends of thecase 101 in theleftward direction 56 and therightward direction 55. Therefore, the lockingportion 145 is immovable relative to thecase 101. For example, the lockingportion 145 is not pivotally movable relative to thecase 101. The lockingportion 145 extends in theleftward direction 56 and therightward direction 55 across the four spaces in which fourink cartridges 30 can be accommodated. In each space in which theink cartridge 30 is accommodated, a space is present around the lockingportion 145. Therefore, the lockingportion 145 is accessible to theink cartridge 30 in theupward direction 54 orremoval direction 52. - The locking
portion 145 is adapted to hold theink cartridge 30 attached to thecartridge attaching unit 110 at the attached position. Theink cartridge 30 is brought into engagement with the lockingportion 145 by inserting theink cartridge 30 into thecartridge attaching unit 110 and pivotally moving theink cartridge 30 to the attachment posture. Further, the lockingportion 145 is adapted to hold theink cartridge 30 in thecartridge attaching unit 110 against urging force of acoil spring 78 of theink cartridge 30 in theremoval direction 52. - As illustrated in
Figs. 2 and10 , fourelectrical contacts 106 are provided on the top surface of thecase 101 and at a position in the vicinity of its end surface. Although not illustrated in detail in these drawings, the fourcontacts 106 are mutually spaced apart in theleftward direction 56 and therightward direction 55. The fourelectrical contacts 106 are positioned in correspondence to four electrodes 65 (seeFig. 3 ) of theink cartridge 30, which will be described later. Eachelectrical contact 106 is formed of an electrically conductive and resilient member such that theelectrical contact 106 is deformable in theupward direction 54. Four sets of fourelectrical contacts 106 are provided in correspondence to fourink cartridges 30 that can be accommodated in thecase 101. Incidentally, there is no limitation on the number ofelectrical contacts 106 and the number ofelectrodes 65, and any number ofelectrical contacts 106 and any number ofelectrodes 65 can be used. - Each
electrical contact 106 is electrically connected to an arithmetic unit through an electric circuit. The arithmetic unit includes, for example, a central processing unit (CPU), a read-only memory (ROM), and a random-access memory (RAM). The arithmetic unit may be configured as a control unit for theprinter 10. When theelectrical contact 106 and its correspondingelectrode 65 are electrically connected to each other, a voltage Vc is applied to theelectrode 65, theelectrode 65 is grounded, or electric power is supplied to theelectrode 65. By the electrical connection between theelectrical contact 106 and its correspondingelectrode 65, data stored in an integrated circuit (IC) in theink cartridge 30 becomes accessible. An output from the electric circuit is inputted into the arithmetic unit. - As illustrated in
Figs. 2 and10 , arod 125 is provided on the end surface of thecase 101 and at a position above theink needle 102. Therod 125 protrudes from the end surface of thecase 101 in theremoval direction 52. Therod 125 has a semi-circular shaped or an inverted U shaped cross-section orthogonal to theremoval direction 52. A rib protrudes upwardly from the topmost position of therod 125 and extends in theremoval direction 52. Therod 125 is inserted into arecess 96 formed below anIC board 64 in theink cartridge 30 in a state where theink cartridge 30 is attached to thecartridge attaching unit 110, that is, in a state where theink cartridge 30 is positioned at the attached position. - As illustrated in
Figs. 2 and10 , thesensor 103 is provided on the top surface of thecase 101. Thesensor 103 has a light emitting portion and a light receiving portion. The light emitting portion is disposed rightward of the light receiving portion in therightward direction 55 or leftward thereof in theleftward direction 56 with a space therebetween. Upon completion of the attachment of theink cartridge 30 to thecartridge attaching unit 110, adetection portion 62 provided in theink cartridge 30 is located between the light emitting portion and the light receiving portion. In other words, the light emitting portion and the light receiving portion are disposed opposite to each other so as to interpose thedetection portion 62 therebetween in a state where the attachment ofink cartridge 30 to thecartridge attaching unit 110 is completed. - The
sensor 103 outputs a different detection signal depending on whether light emitted from the light emitting portion has been received by the light receiving portion. For example, when the light receiving portion cannot receive light emitted from the light emitting portion (that is, the light receiving intensity at the light receiving portion is lower than a predetermined intensity), thesensor 103 outputs a low-level signal, the signal level of which is lower than a threshold level. On the other hand, when the light receiving portion receives light emitted from the light emitting portion (that is, the light receiving intensity at the light receiving portion is not less than the predetermined intensity), thesensor 103 outputs a high-level signal, the signal level of which is not less than the threshold level. - As illustrated in
Figs. 8 and9 , thecover 108 is provided so as to open and close anopening 22 formed in a wall of acasing 14 constituting an outer shape of theprinter 10, the wall being in confrontation with a user when using theprinter 10. Thecase 101 is positioned in an internal space of thecasing 14 such that theopening 112 is in conformance with theopening 22, that is, such that theopening 112 is disposed within theopening 22 when viewed in theforward direction 57. With this structure, theink cartridge 30 can be inserted into and detached from thecase 101 through theopenings - The
cover 108 is pivotally movable about apivot axis 115. Thepivot axis 115 extends in parallel with a mounting surface on which theprinter 10 is mounted, that is, thepivot axis 115 extends in a horizontal direction. In the present embodiment, thepivot axis 115 extends in therightward direction 55 and theleftward direction 56. Thecover 108 has an outer shape in conformance with a size of theopening 22. More specifically, the outer shape of thecover 108 is generally rectangular capable of covering theopening 22. Thecover 108 has a closed posture closing theopening 22 of thecasing 14. As illustrated inFig. 8 , theink cartridge 30 cannot be removed from and inserted into thecartridge attaching unit 110 when thecover 108 is at its closed posture. As illustrated inFig. 9 , thecover 108 allows theopening 112 of thecase 101 to be exposed to an outside when thecover 108 is at its open posture where thecover 108 opens theopening 22 of thecasing 14. Thus, theink cartridge 30 can be removed from and inserted into thecartridge attaching unit 110 when thecover 108 is at its open posture. - The
cover 108 has anouter surface 116 and an inner surface 117 (as an example of a second portion). Theouter surface 116 forms a part of a rear wall of thecasing 14 when thecover 108 is at its closed posture. Theinner surface 117 is in confrontation with thecase 101 when thecover 108 is at its closed posture. A lockingpawl 118 protrudes from theinner surface 117. The lockingpawl 118 is adapted to engage a lockedportion 119 provided at thecasing 14 and disposed at a position adjacent to an upper end of theopening 22 in order to maintain closed posture of thecover 108. That is, by this engagement of the lockingpawl 118 with the lockingportion 119, thecover 108 is locked to thecasing 14 so as not to pivotally move toward the open posture. The lockedportion 119 is tapered toward its upper end, and is pin shaped. The lockedportion 119 is movable in thedownward direction 53 and theupward direction 54 at a position adjacent to the upper end of theopening 22 of thecasing 14, and is urged in theupward direction 54 by a coil spring 128 (seeFig. 14 ). -
Protrusions 121 protrude from theinner surface 117 at position closer to thepivot axis 115 than the lockingpawl 118 to thepivot axis 115. Totally fiveprotrusions 121 are arrayed and spaced away from each other in an extending direction of thepivot axis 115. In a state where theink cartridges 30 are attached to thecartridge attaching unit 110, among the five protrusions, each of the threeintermediate protrusions 121 is positioned between the neighboringink cartridges 30, and oneprotrusion 121 and remaining oneprotrusion 121 are positioned at rightmost end portion (i.e., rightward of the rightmost ink cartridge 30) and leftmost end portion (i.e., leftward of the leftmost ink cartridge 30) in theleftward direction 56 and therightward direction 55, respectively. - The intermediate three
protrusions 121 have the structure identical to each other except for their positioning. Therightmost protrusion 121 and theleftmost protrusion 121 have the structure identical to the intermediate threeprotrusions 121 except that a dimension in theleftward direction 56 and therightward direction 55 of the rightmost and leftmost protrusions is different from each other (Fig. 9 ). One of the intermediate threeprotrusions 121 will be described. - The
protrusion 121 protrudes from theinner surface 117 of thecover 108, and is plate shaped elongated in the extending direction of thepivot axis 115. A distance between theprotrusion 121 and thepivot axis 115 is so determined that theprotrusion 121 when thecover 108 is at its closed posture can be positioned in a recessed portion 95 (Figs. 3A and4A ) positioned between amanipulation portion 90 and asub-upper surface 91 of theink cartridge 30 attached to thecartridge attaching unit 110. The recessedportion 95 is an example of a recess. - The
protrusion 121 has atip end surface 122 and anengagement portion 123. In order for theink cartridge 30 not to change its posture toward the first posture, that is, in order to prevent theink cartridge 30 from changing its posture toward the first posture, theengagement portion 123 is adapted to engage amanipulation surface 92 of themanipulation portion 90 when thetip end surface 122 of theprotrusion 121 is in abutment with themanipulation portion 90 of theink cartridge 30. Theengagement portion 123 is positioned at one end of thetip end surface 122, the one end being positioned farther from thepivot axis 115 than another end of thetip end surface 122 from thepivot axis 115. Theengagement portion 123 protrudes further in a direction away from theinner surface 117 relative to thetip end surface 122. Further, theengagement portion 123 is provided over a length of thetip end surface 122 in theleftward direction 56 and therightward direction 55. - The
engagement portion 123 is tapered toward its tip as viewed in theleftward direction 56 or therightward direction 55. Theengagement portion 123 includes adistal end face 120 and aguide surface 124. Thedistal end face 120 is positioned farther from thepivot axis 115 than theguide surface 124 to thepivot axis 115, that is, thedistal end face 120 is positioned above theguide surface 124 at the closed posture of thecover 108. Thedistal end face 120 expands in thedownward direction 53 and theupward direction 54 when thecover 108 is at its closed posture. In the other words, thedistal end face 120 has a dimension in thedownward direction 53 and theupward direction 54 when thecover 108 is at its closed posture. - In the
engagement portion 123, theguide surface 124 is positioned closer to thepivot axis 115 than thedistal end face 120 to thepivot axis 115, that is, theguide surface 124 is positioned below thedistal end face 120 when thecover 108 is at its closed position. Theguide surface 124 and thetip end surface 122 define an obtuse angle therebetween. Thetip end surface 122 expands in thedownward direction 53 and theupward direction 54 when thecover 108 is at its closed posture. In other words, thetip end surface 122 has a dimension in thedownward direction 53 and theupward direction 54 when thecover 108 is at its closed posture. Accordingly, when thecover 108 is at its closed posture, theguide surface 124 faces in theinsertion direction 51 and the downward direction 53 (Fig. 16 ). When theguide surface 124 is in abutment with themanipulation portion 90 of theink cartridge 30, theguide surface 124 guides themanipulation portion 90 in order for theink cartridge 30 to change its posture toward a second posture. - Four
ink cartridges 30 are attachable to thecartridge attaching unit 110 so as to be arrayed in therightward direction 55 and theleftward direction 56. Each of the threeintermediate protrusions 121 is accommodated between neighboringribs 94 provided at the neighboring recessedportions 95 of the neighboringink cartridges 30 when theink cartridges 30 are locked to thecartridge attaching unit 110. Therightmost protrusion 121 is positioned rightward of therib 94 in the recessedportion 95 of therightmost ink cartridge 30 in therightward direction 55, and theleftmost protrusion 121 is positioned leftward of therib 94 in the recessedportion 95 of theleftmost ink cartridge 30 in theleftward direction 56. The neighboringprotrusions 121 define a gap length therebetween in therightward direction 55 and theleftward direction 56 slightly greater than a dimension (thickness) of therib 94 of theink cartridge 30 in therightward direction 55 and theleftward direction 56. - An
abutment portion 126 is provided at theinner surface 117 of thecover 108 at a position closer to thepivot axis 115 than theprotrusions 121 to thepivot axis 115. Theabutment portion 126 bulges in a direction away from theinner surface 117. Theabutment portion 126 has a width in therightward direction 55 and theleftward direction 56 approximately equal to a width of a combined fiveprotrusions 121 in therightward direction 55 and theleftward direction 56, that is, a distance from a right end of therightmost protrusion 121 to a left end of theleftmost protrusion 121 in therightward direction 55 and theleftward direction 56. Further, theabutment portion 126 has a right end substantially in coincidence with the right end of therightmost protrusion 121 and has a left end substantially in coincidence with the left end of theleftmost protrusion 121 in therightward direction 55 and theleftward direction 56. Theabutment portion 126 is in confrontation with alower portion 41L of arear surface 41 of theink cartridge 30 that is in locked state, when thecover 108 is at its closed posture. - The protruding length of the
abutment portion 126 from theinner surface 117 is smaller than the protruding length of theprotrusions 121 from theinner surface 117. Theabutment portion 126 has atip end surface 127 extending in parallel to theinner surface 117. Further, thetip end surface 127 is approximately parallel to thelower portion 41L of therear surface 41 of theink cartridge 30 that is in the locked state when thecover 108 is at its closed posture. - As will be described later, the
protrusions 121 accommodated in the recessedportions 95 of theink cartridges 30 prevents theink cartridges 30 from pivotally moving from the first posture (locked state) to the second posture (unlocked state) in thecartridge attaching unit 110 when thecover 108 is at the closed posture. Further, when theink cartridge 30 is at the second posture in thecartridge attaching unit 110, in the process of the pivotal movement of thecover 108 from the open posture to the closed posture, theabutment portion 126 is brought into abutment with thelower portion 41L of therear surface 41 of theink cartridge 30 that is in the unlocked state, to thus move theink cartridge 30 that is at the second posture in theinsertion direction 51 to a position where themanipulation portion 90 and theprotrusions 121 can abut against each other. Further, in the process of the pivotal movement of thecover 108 from the open posture to the closed posture, theprotrusions 121 are brought into engagement with themanipulation portion 90 of theink cartridge 30 that is at the second posture. By further pivotal movement of thecover 108 toward the closed posture, theprotrusions 121 move theink cartridge 30 in theinsertion direction 51 while theprotrusions 121 are in engagement with themanipulation portion 90 and holds theink cartridge 30 so as to prevent theink cartridge 30 from pivotally moving to the first posture. - The
ink cartridge 30 illustrated inFigs. 3 through 6 is a vessel in which ink is retained. A space formed in theink cartridge 30 is the retaining chamber 36 (an example of a liquid retaining chamber). The retainingchamber 36 is defined by aninternal frame 35 accommodated in arear cover 31 and afront cover 32, those forming an outer shape of theink cartridge 30. As a modification, the retainingchamber 36 can be defined by therear cover 31 and thefront cover 32. - The locked state (first posture) of the
ink cartridge 30 is illustrated inFigs. 3 through 6 and13 . Theink cartridge 30 has afront surface 140, therear surface 41,upper surfaces 39 and 141 (as an example of a side surface), andlower surfaces ink cartridge 30 illustrated inFigs. 3 through 6 , a direction extending from therear surface 41 toward thefront surface 140 is coincident with theinsertion direction 51 and theforward direction 57, a direction extending from thefront surface 140 toward therear surface 41 is coincident with theremoval direction 52, a direction extending from theupper surfaces lower surfaces downward direction 53, and a direction extending from thelower surfaces upper surfaces upward direction 54. When theink cartridge 30 is attached to thecartridge attaching unit 110, thefront surface 140 faces in theinsertion direction 51 and in theforward direction 57, therear surface 41 faces in theremoval direction 52, thelower surfaces downward direction 53, theupper surfaces upward direction 54, and theink supply portion 34 faces in a direction crossing the direction of force of gravity. - As illustrated in
Figs. 3 through 6 , theink cartridge 30 includes therear cover 31 having a substantially rectangular parallelepiped shape, thefront cover 32 forming thefront surface 140, and theinternal frame 35 defining the retainingchamber 36. Therear cover 31 andfront cover 32 are assembled together to form the outside shape of theink cartridge 30. Theinternal frame 35 is placed inside the combinedrear cover 31 andfront cover 32. Theink cartridge 30 is flat as a whole; the dimension in therightward direction 55 and theleftward direction 56 is small, and the dimension in thedownward direction 53 and theupward direction 54 and the dimension in theforward direction 57 and thebackward direction 58 are larger than the dimension in therightward direction 55 and theleftward direction 56. When theink cartridge 30 is inserted into thecartridge attaching unit 110, i.e., in a state of the insertion, thefront surface 140 of thefront cover 32 faces in the insertion direction 51 (the forward direction 57) and therear surface 41 of therear cover 31 faces in the removal direction 52 (the backward direction 58). That is, therear surface 41 is disposed opposite to thefront surface 140 of thefront cover 32 so as to interpose the retainingchamber 36 between therear surface 41 and thefront surface 140. Note that, in the state of the insertion, theink supply portion 34 of theink cartridge 30 faces in a direction crossing the direction of force of gravity. - As illustrated in
Figs. 3 and4 , therear cover 31 is formed like a box shape withside surfaces rightward direction 55 and theleftward direction 56, theupper surface 39 facing in theupward direction 54, and thelower surface 42 facing in thedownward direction 53. Theupper surface 39 and thelower surface 42 extend from therear surface 41 in theinsertion direction 51. Therear cover 31 has an open end opening forward in theforward direction 57. Theinternal frame 35 is inserted into an interior of therear cover 31 through the open end. That is, therear cover 31 covers the rear portion of theinternal frame 35. In a state where theinternal frame 35 is inserted, thelower surface 42 is disposed opposite to theupper surface 39 so as to interpose the retainingchamber 36 between thelower surface 42 and theupper surface 39. - The
rear surface 41 has anupper portion 41U and thelower portion 41L. Theupper portion 41U is positioned above thelower portion 41L in theupward direction 54. Thelower portion 41L is positioned below theupper portion 41U in thedownward direction 53. Thelower portion 41L is positioned forward of theupper portion 41U in theforward direction 57. Both theupper portion 41U and thelower portion 41L are flat surfaces, and crossing each other but not orthogonal to each other. Thelower portion 41L is inclined with respect to thedownward direction 53 and theupward direction 54 such that thelower portion 41L approaches thefront surface 140 as thelower portion 41L approaches thelower surface 42. For prompting the user to push theink cartridge 30, a sheet indicating characters such as "PUSH", a symbol such as an arrow, or a figure indicating a push with a finger, or the like is pasted to theupper portion 41U as illustrated inFig. 7B . - As illustrated in
Figs. 3 and4 , aprotrusion 43 is formed on theupper surface 39 of therear cover 31. Theprotrusion 43 extends in theforward direction 57 and thebackward direction 58 at a center of theupper surface 39 in therightward direction 55 and theleftward direction 56. Theprotrusion 43 has a lockingsurface 151 facing in thebackward direction 58. The lockingsurface 151 extends in thedownward direction 53 and theupward direction 54. In other words, the lockingsurface 151 has a dimension in thedownward direction 53 and theupward direction 54. In a locked state where theink cartridge 30 is attached to thecartridge attaching unit 110, the lockingsurface 151 can be brought into contact with the lockingportion 145 in theremoval direction 52. In a state where the lockingsurface 151 is in contact with the lockingportion 145 in theremoval direction 52, theink cartridge 30 is held in thecartridge attaching unit 110 against biasing force of thecoil spring 78. - The locking
surface 151 has a rightmost edge in therightward direction 55 and a leftmost edge in theleftward direction 56. A reinforcingsurface 152 extends from the rightmost edge of the lockingsurface 151, and intersects with the lockingsurface 151. A reinforcingsurface 153 extends from the leftmost edge of the lockingsurface 151, and intersects with the lockingsurface 151. The reinforcingsurfaces forward direction 57 from the lockingsurface 151 so as to form an acute angle with respect to an imaginary flat surface containing the lockingsurface 151 and extending in thedownward direction 53, theupward direction 54, therightward direction 55, and theleftward direction 56. Because of the reinforcingsurfaces protrusion 43 is increased, reducing the risk of damage or breakage to thelocking surface 151. Since the reinforcingsurfaces surface 151 in thebackward direction 58, the reinforcingsurfaces portion 145. Therefore, even if the lockingsurface 151 is slidingly moved with respect to the lockingportion 145, sliding resistance is not increased. In other words, even if the lockingsurface 151 is slidingly moved with respect to the lockingportion 145, the presence of the reinforcingsurfaces - In the
protrusion 43, ahorizontal surface 154 extends from the lockingsurface 151 in theforward direction 57. Thehorizontal surface 154 expands in therightward direction 55, theleftward direction 56, theforward direction 57, and thebackward direction 58. Further, aninclined surface 155 extends from thehorizontal surface 154 in theforward direction 57. Theinclined surface 155 faces in theupward direction 54 and theforward direction 57. Therefore, theinclined surface 155 is visible when theink cartridge 30 is viewed in thedownward direction 53, and also visible when theink cartridge 30 is viewed in thebackward direction 58. Since the lockingsurface 151 is continued to theinclined surface 155 through thehorizontal surface 154, a boundary between the lockingsurface 151 and thehorizontal surface 154 does not become a pointed apex shape. In the process of the insertion of theink cartridge 30 into thecartridge attaching unit 110, the lockingportion 145 is smoothly guided by theinclined surface 155 andhorizontal surface 154 beyond the lockingsurface 151 in thebackward direction 58 while maintaining a contact of the lockingportion 145 with theinclined surface 155 andhorizontal surface 154. - The
inclined surface 155 has a rightmost edge in therightward direction 55 and a leftmost edge in theleftward direction 56. A reinforcingsurface 156 extends from the rightmost edge of theinclined surface 155, and intersects with theinclined surface 155. A reinforcingsurface 157 extends from the leftmost edge of theinclined surface 155, and intersects with theinclined surface 155. The reinforcingsurfaces downward direction 53 from theinclined surface 155 so as to form an acute angle with respect to an imaginary flat surface containing theinclined surface 155 and extending in therightward direction 55 and theleftward direction 56. Because of the reinforcingsurfaces protrusion 43 is increased, reducing the risk of damage or breakage to theinclined surface 155. Since the reinforcingsurfaces inclined surface 155 in theupward direction 54, the reinforcingsurfaces portion 145. Therefore, even if theinclined surface 155 is slidingly moved with respect to the lockingportion 145, sliding resistance is not increased. In other words, even if theinclined surface 155 is slidingly moved with respect to the lockingportion 145, the presence of the reinforcingsurfaces - The
manipulation portion 90 is provided on theupper surface 39 of therear cover 31 and at a position backward of the lockingsurface 151 in thebackward direction 58. At the rear end portion of theupper surface 39 of therear cover 31, the sub-upper surface 91 (as an example of a sub-side surface) is provided below the remainingupper surface 39 in thedownward direction 53. The manipulation portion 90 (as an example of a first portion) is disposed above and spaced away from thesub-upper surface 91 through the recessedportion 95. The recessedportion 95 is open in theremoval direction 52, i.e., in thebackward direction 58. Themanipulation portion 90 is shaped like a flat plate such that themanipulation portion 90 protrudes beyond theprotrusion 43 in theupward direction 54 from the vicinity of a boundary between thesub-upper surface 91 and the remainingupper surface 39 and is then bent diagonally in thebackward direction 58 and in thedownward direction 53. Therib 94 is provided between themanipulation portion 90 and thesub-upper surface 91. More specifically, therib 94 extends from thesub-upper surface 91 to a back surface 99 (Fig. 5 ) of themanipulation portion 90 and protrudes in thebackward direction 58. As illustrated inFig. 7B , the dimension of therib 94 in therightward direction 55 and theleftward direction 56 is smaller than the dimensions of themanipulation portion 90 in therightward direction 55 and theleftward direction 56 and is also smaller than thesub-upper surface 91 in therightward direction 55 and theleftward direction 56. - The
manipulation portion 90 has themanipulation surface 92 facing in theupward direction 54 and in thebackward direction 58. Themanipulation surface 92 is opposite to theback surface 99 in theupward direction 54 and thedownward direction 53. Themanipulation surface 92 andsub-upper surface 91 are overlapped with each other in theforward direction 57 and thebackward direction 58. In other words, when theink cartridge 30 is viewed in thedownward direction 53, themanipulation surface 92 andsub-upper surface 91 are overlapped with each other. Themanipulation surface 92 has a plurality of rib-like protrusions 93 extending in therightward direction 55 and theleftward direction 56, and spaced apart from each other in theforward direction 57 and thebackward direction 58. The user can easily recognize themanipulation surface 92 because of the rib-like protrusions 93. In addition, when the user manipulates themanipulation surface 92 with a finger, finger slippage on themanipulation surface 92 can be restrained. - As illustrated in
Figs. 7A and 7B , themanipulation surface 92 is visible when theink cartridge 30 is viewed in thedownward direction 53, and also visible when theink cartridge 30 is viewed in theforward direction 57. In other words, themanipulation surface 92 is visible when theink cartridge 30 is viewed in a direction from theupper surface 39 to thelower surface 42, and also visible when theink cartridge 30 is viewed in a direction from therear surface 41 to thefront surface 140. Themanipulation surface 92 is adapted for user's manipulation to take out theink cartridge 30 attached to thecartridge attaching unit 110. Themanipulation portion 90 is rigidly secured to therear cover 31 by being integrally molded with therear cover 31, such that relative movement between themanipulation portion 90 and therear cover 31 does not occur, for example, pivotal movement of themanipulation portion 90 relative to therear cover 31 does not occur. Therefore, a force given by the user to themanipulation surface 92 can be directly transmitted to therear cover 31 without changing the direction. Incidentally, in this embodiment, themanipulation portion 90 is configured to also avoid relative movement, such as pivotal movement, with respect to theinternal frame 35 and retainingchamber 36. - In the
manipulation portion 90, aguide surface 89 extends from themanipulation surface 92 and is positioned backward of themanipulation surface 92 in thebackward direction 58. Theguide surface 89 faces in thebackward direction 58 and theupward direction 54. Theguide surface 89 is a surface accessible to theengagement portion 123 of theprotrusion 121 of thecover 108 in theinsertion direction 51. - As illustrated in
Figs. 3 and4 , thefront cover 32 is box shaped havingside surfaces upper surface 141, and thelower surface 142. The side surfaces 143 and 144 are spaced away from each other in therightward direction 55 and theleftward direction 56 and extend from thefront surface 140 in thebackward direction 58. Theupper surface 141 andlower surface 142 are spaced away from each other in thedownward direction 53 and theupward direction 54 and extend from thefront surface 140 in thebackward direction 58. Thefront cover 32 has an open end opening backward in thebackward direction 58. Theinternal frame 35 is inserted into thefront cover 32 through the open end. That is, thefront cover 32 covers a front portion of theinternal frame 35 which is not covered by therear cover 31. - In a state where the
rear cover 31 andfront cover 32 are assembled together, that is, theink cartridge 30 is assembled, theupper surface 141 of thefront cover 32 forms the upper surface of theink cartridge 30 together with theupper surface 39 of therear cover 31, and thelower surface 142 of thefront cover 32 forms the lower surface of theink cartridge 30 together with thelower surface 42 of therear cover 31. - Specifically, in a state where the
ink cartridge 30 is at the locked state (first posture), thelower surface 142 of thefront cover 32 extends in theforward direction 57 and thebackward direction 58, and thelower surface 42 of therear cover 31 is inclined so as to face in thedownward direction 53 and in thebackward direction 58. The side surfaces 143 and 144 of thefront cover 32 form the side surfaces of theink cartridge 30 together with the side surfaces 37 and 38 of therear cover 31. In the assembled state of theink cartridge 30, thefront surface 140 of thefront cover 32, thefront surface 140 forming the front surface of theink cartridge 30, and therear surface 41 of therear cover 31, therear surface 41 forming the rear surface of theink cartridge 30, are spaced apart from each other in theforward direction 57 and thebackward direction 58. - Incidentally, each of the front surface, rear surface, upper surface, lower surface, and side surfaces of the
ink cartridge 30 is not limited to a single flat plane. That is, the front surface is a surface that is visible when theink cartridge 30 placed in the first posture is viewed in thebackward direction 58, and the front surface is positioned frontward of a center of theink cartridge 30 in theforward direction 57 and thebackward direction 58. The rear surface is a surface that is visible when theink cartridge 30 placed in the first posture is viewed in theforward direction 57, and the rear surface is positioned rearward of the center of theink cartridge 30 in theforward direction 57 and thebackward direction 58. The upper surface is a surface that is visible when theink cartridge 30 placed in the first posture is viewed in thedownward direction 53, and the upper surface is positioned upward of a center of theink cartridge 30 in thedownward direction 53 and theupward direction 54. The lower surface is a surface that is visible when theink cartridge 30 placed in the first posture is viewed in theupward direction 54, and the lower surface is positioned downward of the center of theink cartridge 30 in thedownward direction 53 and theupward direction 54. The same is true with respect to the side surfaces. - The
recess 96 recessed in thebackward direction 58 is formed at an upper portion of thefront surface 140 of thefront cover 32. Therecess 96 is adapted to allow therod 125 to be inserted thereinto in the state where theink cartridge 30 is attached to thecartridge attaching unit 110. Therefore, a cross-sectional shape of therecess 96 taken along a plane perpendicular to theforward direction 57 and thebackward direction 58 corresponds to a cross-sectional shape of therod 125. - A
hole 97 passing through thefront cover 32 in thebackward direction 58 is formed at a lower portion of thefront surface 140 of thefront cover 32. With theinternal frame 35 being inserted into thefront cover 32, thehole 97 allows theink supply portion 34 of theinternal frame 35 to be exposed to an outside. Therefore, the position, dimensions, and shape of thehole 97 correspond to those of theink supply portion 34 of theinternal frame 35. - A first protruding
portion 85 and a second protrudingportion 86 are provided on thefront surface 140 of thefront cover 32. The first protrudingportion 85 protrudes from the upper portion of thefront cover 32 in theforward direction 57. Therecess 96 is formed at a tip end portion of the first protrudingportion 85. A tip end of the first protrudingportion 85 forms a part of thefront surface 140. The second protrudingportion 86 protrudes from the lower portion of thefront surface 140 in theforward direction 57 and is positioned at a position below theink supply portion 34. - A
hole 98 passing through thefront cover 32 in thedownward direction 53 is formed at theupper surface 141 of thefront cover 32. With theinternal frame 35 being inserted into thefront cover 32, thehole 98 allows thedetection portion 62 of theinternal frame 35 to be exposed to the outside. Therefore, the position, dimension, and shape of thehole 98 correspond to those of thedetection portion 62 of theinternal frame 35. - The
IC board 64 is disposed on theupper surface 141 of thefront cover 32 and above the first protrudingportion 85, that is, theIC board 64 is positioned above theink supply portion 34. TheIC board 64 is electrically connected to the four electrical contacts 106 (seeFig. 2 ) arrayed in therightward direction 55 and theleftward direction 56 not only in a state where theink cartridge 30 has been attached to thecartridge attaching unit 110 but also in a state where theink cartridge 30 is on its way to the cartridge attaching unit 110 (during attachment of theink cartridge 30 to the cartridge attaching unit 110). - An IC (not illustrated) and the four
electrodes 65 are mounted theIC board 64. The fourelectrodes 65 are arrayed in therightward direction 55 and theleftward direction 56. The IC is a semiconductor integrated circuit storing information about theink cartridge 30 such as a lot number, and a date and time of manufacturing, and data indicative of ink colors in such a way that the data can be read. - Each of the
electrodes 65 is electrically connected to the IC. Eachelectrode 65 extends in theforward direction 57 and thebackward direction 58. The fourelectrodes 65 are spaced apart from each other in therightward direction 55 and theleftward direction 56. Eachelectrode 65 is exposed to an upper surface of theIC board 64 so as to be electrically accessible. - Although not illustrated in the drawings, the
internal frame 35 is tubular shape having a pair of end surfaces being open in therightward direction 55 and theleftward direction 56. The pair of open end surfaces of theinternal frame 35 are sealed with films (not illustrated), forming the retainingchamber 36 in which ink is retainable. Afront surface 40 defining the retainingchamber 36 faces a back surface of thefront surface 140 of thefront cover 32 when theinternal frame 35 is inserted into thefront cover 32. Theink supply portion 34 is disposed at thefront surface 40. - As illustrated in
Fig. 6 , at a lower portion of thefront surface 140 of thefront cover 32, theink supply portion 34 protrudes from thefront surface 40 of theinternal frame 35 in theforward direction 57. Theink supply portion 34 has a cylindrical outside shape and protrudes toward the outside through thehole 97 formed in thefront surface 140 of thefront cover 32. Theink supply portion 34 has the hollowcylindrical wall 73 and a sealingmember 76 and acap 79 those being attached to thecylindrical wall 73. In a state where theink cartridge 30 has been attached to thecartridge attaching unit 110, theink supply portion 34 faces in a direction crossing the direction of force of gravity. Further, in a state where theink cartridge 30 is on its way to the cartridge attaching unit 110 (during attachment of theink cartridge 30 to the cartridge attaching unit 110), theink supply portion 34 faces in a direction crossing the direction of force of gravity. - The
cylindrical wall 73 extends from the interior of the retainingchamber 36 to the outside. The leading end of thecylindrical wall 73 in theremoval direction 52 is open to the retainingchamber 36. The leading end of thecylindrical wall 73 in theinsertion direction 51 is open to the outside of theink cartridge 30. Thus, thecylindrical wall 73 allows the retainingchamber 36 to communicate with the outside of theink cartridge 30 through the hollow space. That is, theink supply portion 34 is adapted to supply ink retained in the retainingchamber 36 to the outside of theink cartridge 30 through the hollow space of thecylindrical wall 73. The sealingmember 76 andcap 79 are attached to the leading end of thecylindrical wall 73 in theinsertion direction 51. - The
valve body 77 and thecoil spring 78 are accommodated in the hollow space of thecylindrical wall 73. Thevalve body 77 andcoil spring 78 are adapted to selectively switch the state of theink supply portion 34. More specifically, thevalve body 77 andcoil spring 78 are adapted to selectively switch from a first state to a second state and vice versa. In the first state, ink flow from the retainingchamber 36 to the outside of theink cartridge 30 through the hollow space of the cylindrical wall 73 (Fig. 13 ). In the second state, flowing of the ink from the hollow space of thecylindrical wall 73 to the outside of theink cartridge 30 is prevented (Fig. 6 ). - By the movement of the
valve body 77 in theforward direction 57 and thebackward direction 58, theink supply opening 71 is closed and opened by thevalve body 77. Thecoil spring 78 is adapted to bias thevalve body 77 in theforward direction 57. Therefore, thevalve body 77 closes theink supply opening 71 of the sealingmember 76 in a state where no external force is applied. - The sealing
member 76 is disposed at the tip end portion of thecylindrical wall 73. The sealingmember 76 has a radially center portion at which a through-hole is formed. The sealingmember 76 is a discoid member formed with the through-hole. The sealingmember 76 is made from an elastic material such as a rubber material or an elastomer. The through-hole extends in theforward direction 57 and thebackward direction 58 at the radial center portion of the sealingmember 76 to form a cylindrical inner surface, and theink supply opening 71 is defined by the cylindrical inner surface. Theink supply opening 71 has an inner diameter slightly smaller than an outer diameter of theink needle 102. Thecap 79 is fitted to an outer surface of thecylindrical wall 73, so that the sealingmember 76 is in liquid-tight contact with a tip end of thecylindrical wall 73. - The
ink needle 102 enters theink supply opening 71 by the insertion of theink cartridge 30 into thecartridge attaching unit 110 in a state where thevalve body 77 closes theink supply opening 71. The outer peripheral surface of theink needle 102 comes into contact with the cylindrical inner surface defining theink supply opening 71 in a liquid-tight manner, while theink needle 102 elastically deforms the sealingmember 76. The end of theink needle 102 is brought into abutment with thevalve body 77, as a result of passing of the end of theink needle 102 through the sealingmember 76 and entering the hollow space of thecylindrical wall 73. By further insertion of theink cartridge 30 into thecartridge attaching unit 110, theink needle 102 causes thevalve body 77 to move in thebackward direction 58 against the biasing force of thecoil spring 78. This enables ink retained in the retainingchamber 36 to flow to the tip end portion of theink needle 102 through the hollow space of thecylindrical wall 73. Although not illustrated in the drawings, the tip end portion of theink needle 102 is formed with a through-hole. Thus, the ink flows from the hollow space of thecylindrical wall 73 to an internal space of theink needle 102 through the through-hole. Accordingly, the ink retained in the retainingchamber 36 can flow to the outside through the hollow space of thecylindrical wall 73 and theink needle 102. - Incidentally, the
valve body 77 which closes theink supply opening 71 is not necessarily provided in theink supply portion 34. For example, theink supply opening 71 can be closed by a film or the like. In the latter case, as a result of insertion of theink cartridge 30 into thecartridge attaching unit 110, theink needle 102 breaks the film, so that the tip end portion of theink needle 102 enters the hollow space of thecylindrical wall 73 through theink supply opening 71. Alternatively, theink supply opening 71 may be normally closed by the elastic deformation of the sealingmember 76. In the latter case, theink supply opening 71 becomes open by the pressure from theink needle 102, the pressure being generated upon insertion of theink needle 102. - As illustrated in
Fig. 6 , theinternal frame 35 is provided with thedetection portion 62 protruding in theupward direction 54 from the upper surface thereof. Thedetection portion 62 is convex shaped whose internal space is in communication with the retainingchamber 36. Thedetection portion 62 has light transmissivity enabling light to pass in therightward direction 55 and theleftward direction 56. Thedetection portion 62 is exposed to the outside through thehole 98 of thefront cover 32. - As illustrated in
Fig. 6 , adetection member 59 is positioned in the retainingchamber 36 of theinternal frame 35. Thedetection member 59 is supported by apivot shaft 61 extending in therightward direction 55 and theleftward direction 56 and is pivotally movable about thepivot shaft 61. - The
detection member 59 has afloat 63 whose specific gravity is lower than that of the ink retained in the retainingchamber 36. Therefore, thefloat 63 generates buoyancy while thefloat 63 is in the ink in the retainingchamber 36. In a state where the retainingchamber 36 is approximately fully filled with ink, thedetection member 59 is pivotally moved in the counterclockwise direction inFig. 6 because of the buoyancy of thefloat 63. Here, a portion of thedetection member 59 is entered the interior of thedetection portion 62, and is in contact with a wall defining a forward end of thedetection portion 62 in theforward direction 57. Consequently, the pivot posture of thedetection member 59 can be maintained. In this state, thedetection member 59 shuts off the light emitted from thesensor 103, and performs other processing on the light, the light being configured to advance through thedetection portion 62 in therightward direction 55 or theleftward direction 56. - Specifically, when the light emitted from the light emitting portion of the
sensor 103 reaches one of the right surface and left surface of thedetection portion 62, thedetection member 59 reduces intensity of light passing through the remaining one of the right surface and left surface of thedetection portion 62 and reaching the light receiving portion of thesensor 103 blow a predetermined intensity, for example, zero. Thedetection member 59 may completely shut off the light so as to completely prevent light from advancing in therightward direction 55 or theleftward direction 56. Alternatively, thedetection member 59 may partially absorb the light, or may change advancing direction of the light, or may cause total reflection of the light. - When ink in the retaining
chamber 36 is reduced and the liquid level of the ink is lowered below a height positon of thefloat 63 that is at a posture where thedetection member 59 shuts off the light passing through thedetection portion 62, thefloat 63 is lowered in accordance with the lowering of the liquid level. Accordingly, thedetection member 59 is pivotally moved in the clockwise direction inFig. 6 . By this pivotal movement in the clockwise direction, the portion of thedetection member 59 having been entered into the interior of thedetection portion 62 is moved to a position offsetting from a light path from the light emitting portion to the light receiving portion. Thus, intensity of light received at the light receiving portion of thesensor 103 is equal to or higher than the predetermined intensity. - As illustrated in
Fig. 5 , in theink cartridge 30, a distance D1 between the lockingsurface 151 and the front surface 140 (more specifically, the distance D1 between the lockingsurface 151 and a frontmost surface of the front surface 140) is greater than a distance D2 between the lockingsurface 151 and the rear surface 41 (more specifically, the distance D2 between the lockingsurface 151 and theupper portion 41U of the rear surface 41). Further, the distance D1 is smaller than a distance D3 between themanipulation surface 92 and the front surface 140 (more specifically, distance D3 between themanipulation surface 92 and the frontmost surface of the front surface 140). Further, a distance D4 between a lower end of theupper portion 41U of therear surface 41 and thelower surface 42 is greater than a distance D5 between a lower end of thelower portion 41L of therear surface 41 and the lower surface 42 (in the depicted embodiment, the distance D5 is zero). Further, a distance D6 between a frontmost edge of theupper portion 41U of therear surface 41 and the front surface 140 (more specifically, distance D6 between the frontmost edge of theupper portion 41U of therear surface 41 and the frontmost surface of the front surface 140) is greater than a distance D7 between a frontmost edge of thelower portion 41 L of therear surface 41 and the front surface 140 (more specifically, the distance D7 between the frontmost edge of thelower portion 41L of therear surface 41 and the frontmost surface of the front surface 140). Thelower portion 41L of therear surface 41 has a portion positioned between acentral axis 72 of theink supply opening 71 of the sealingmember 76 and thelower surface 42 when viewed in theforward direction 57 or thebackward direction 58. Thecentral axis 72 passes through the center of theink supply opening 71 and extends in a direction in which theink supply opening 71 penetrates the sealingmember 76. - [Attaching operation of the
ink cartridge 30 to the cartridge attaching unit 110] - A process of the attachment of the
ink cartridge 30 to thecartridge attaching unit 110 will be described below. - As illustrated in
Fig. 6 , prior to the attachment of theink cartridge 30 to thecartridge attaching unit 110, in theink cartridge 30, thevalve body 77 closes theink supply opening 71 of the sealingmember 76. This blocks a flow of ink from the retainingchamber 36 to the outside of theink cartridge 30. Further, as illustrated inFig. 9 , for insertion of theink cartridge 30 into thecartridge attaching unit 110, thecover 108 is opened by the user to be at its open posture. - As illustrated in
Fig. 10 , theink cartridge 30 is inserted into thecase 101 through theopening 112 of thecartridge attaching unit 110. Theupper portion 41U of therear surface 41 of therear cover 31 is positioned rearward of thelower portion 41L in theremoval direction 52. That is, theupper portion 41U is positioned closer to the user, than the lower portion 411 to the user. Thus, the user inserts theink cartridge 30 into thecartridge attaching unit 110 in theinsertion direction 51 while pressing theupper portion 41U. The user is prompted to push theupper portion 41U because the sheet pasted to theupper portion 41U indicates "PUSH" or another characters, a symbol such as an arrow, or a figure indicating a push with a finger, or the like, as described above. The lower portions of theink cartridge 30, that is, lower portions of thefront cover 32 andrear cover 31, enter thelower guide groove 109 of thecase 101. The second protrudingportion 86 is disposed at the lower portion of thefront cover 32. Arib part 87 protrudes from thelower surface 142 of thefront cover 32 in thedownward direction 53. Therib part 87 is brought into abutment with the upper surface of thelower guide groove 109. With this abutment, the front portion of thefront cover 32 is lifted upward so that thelower surface 142 is inclined with respect to theinsertion direction 51. That is, therib part 87 of thefront cover 32 and a rear portion of thelower surface 142 are in abutment with the upper surface of thelower guide groove 109. - As illustrated in
Fig. 11 , when theink cartridge 30 is further inserted into thecartridge attaching unit 110 in theinsertion direction 51, thecap 79 in theink supply portion 34 starts to enter thecylindrical guide 105. Further, therecess 96 of thefront cover 32 faces therod 125, and therod 125 starts to enter therecess 96. - As illustrated in
Fig .12 , when theink cartridge 30 is further inserted into thecartridge attaching unit 110 in theinsertion direction 51, thecap 79 in theink supply portion 34 is entered into thecylindrical guide 105, and theink needle 102 is entered into theink supply opening 71 to move thevalve body 77 away from the sealingmember 76 against the biasing force of thecoil spring 78. The biasing force of thecoil spring 78 is applied to theink cartridge 30 in theremoval direction 52. - Further, the
rod 125 is entered into therecess 96 of thefront cover 32 to support thefront cover 32 from below. TheIC board 64 reaches the lower side of theelectrical contacts 106, so that each of theelectrodes 65 is electrically connected to corresponding one of the electric contacts while theelectrical contacts 106 are resiliently deformed upward. In this case, theIC board 64 is urged in thedownward direction 53 because of the resilient deformation of theelectrical contacts 106. However, theIC board 64 can be accurately positioned relative to theelectrical contacts 106 because therod 125 supports thefront cover 32 from below. Incidentally, therod 125 does not necessarily support thefront cover 32 from below. - The
protrusion 43 of therear cover 31 reaches the lockingportion 145 and theinclined surface 155 slides on the lockingportion 145. When the user presses theupper portion 41U of therear surface 41 in theinsertion direction 51, rotational moment is exerted on theink cartridge 30 in the counterclockwise direction inFig. 12 . However, because of the contact between theinclined surface 155 and the lockingportion 145, theink cartridge 30 is urged to be pivotally moved about theink supply portion 34 in a clockwise direction inFig. 12 against the rotational moment. In detail, theink cartridge 30 is pivotally moved about a pivot axis, the pivot axis extending in the horizontal direction (in the present embodiment, the pivot axis extends in therightward direction 55 and leftward direction 56) and passing through the center of theink supply opening 71 of the sealingmember 76 through which theink needle 102 has been inserted. That is, the pivot axis about which theink cartridge 30 is pivotally moved extends in a direction the same as the direction in which thepivot axis 115 of thecover 108 extends. Note that, the "center of theink supply opening 71" is coincident with the center of a "portion" ofink needle 102, and the inner circumferential surface of the sealingmember 76 defining theink supply opening 71 is in contact with the "portion" of theink needle 102. The posture of theink cartridge 30 illustrated inFig. 12 is referred to as the "second posture (the unlocked state)." The "second posture" implies a posture of theentire ink cartridge 30. - The locking
surface 151 of theprotrusion 43 is positioned below the lockingportion 145 while theink cartridge 30 is in the second posture. Further, the above-described pivot center (i.e., the pivot axis of the ink cartridge 30) is overlapped with theIC board 64 in theinsertion direction 51 while theink cartridge 30 is in the second posture. In other words, in a state where theink cartridge 30 is in the second posture, the above-described pivot center is overlapped with theIC board 64 when viewed in thedownward direction 53 or theupward direction 54. Therefore, the biasing force applied to theIC board 64 by theelectrical contacts 106 does not produce rotational moment which pivotally moves theink cartridge 30, or the biasing force produces extremely small rotational moment. Further, thelower surface 42 of therear cover 31 is in contact with or is positioned in the vicinity of the upper surface of thelower guide groove 109, while theink cartridge 30 is in the second posture. Therefore, in the depicted embodiment, when theink cartridge 30 is in the second posture, thelower surface 42 of therear cover 31 is parallel to a horizontal plane. Further, thelower portion 41L of therear surface 41 of therear cover 31 is positioned further in theinsertion direction 51 relative to theupper portion 41U while theink cartridge 30 is in the second posture. In other words, thelower portion 41L is positioned frontward of theupper portion 41U in theforward direction 57 while theink cartridge 30 is in the second posture. - As illustrated in
Fig. 13 , when theink cartridge 30 is further inserted in theinsertion direction 51 against the biasing force of thecoil spring 78, theinclined surface 155 andhorizontal surface 154 of theprotrusion 43 of therear cover 31 are positioned closer to the end surface of thecase 101 than the lockingportion 145 to the end surface. Since the rotational moment in the counterclockwise direction shown inFig. 13 has been applied to theink cartridge 30 as a result of theupper portion 41U of therear surface 41 being pressed in theinsertion direction 51 by the user, when theinclined surface 155 andhorizontal surface 154 are separated from the lockingportion 145, theink cartridge 30 is pivotally moved in the counterclockwise direction inFig. 13 about theink supply portion 34. More specifically, theink cartridge 30 is pivotally moved about the pivot axis passing through the center of theink supply opening 71 of the sealingmember 76 through which theink needle 102 has been inserted. The posture of theink cartridge 30 illustrated inFig. 13 is referred to as "the first posture (locked state)." Note that, the "first posture" implies a posture of theentire ink cartridge 30. In this way, theink cartridge 30 is capable of changing its posture from the second posture to the first posture about theink supply portion 34. In other words, theink cartridge 30 is pivotally movable from the second posture to the first posture about theink supply portion 34. - The locking
surface 151 faces the lockingportion 145 in theremoval direction 52 while theink cartridge 30 is in the first posture. When theink cartridge 30 is pivotally moved from the second posture to the first posture, therear cover 31 is brought into abutment with the lockingportion 145 to generate an impact. Thus, the user recognizes completion of pressing theink cartridge 30 in theinsertion direction 51. Theink cartridge 30 moves in theremoval direction 52 because of the biasing force of thecoil spring 78 as soon as the user stops pressing theink cartridge 30 in theinsertion direction 51. While theink cartridge 30 is placed in the first posture, the lockingsurface 151 facing the lockingportion 145 in theremoval direction 52 is brought into abutment with the lockingportion 145 as a result of slight movement of theink cartridge 30 in theremoval direction 52. Consequently, the first posture of theink cartridge 30 can be maintained, restricting movement of theink cartridge 30 in theremoval direction 52. That is, theink cartridge 30 is subjected to positioning within thecartridge attaching unit 110, and theink cartridge 30 is at the locked state where attachment to thecartridge attaching unit 110 is completed. Note that, in the locked state, theink supply portion 34 faces in a direction crossing the direction of force of gravity. - The user pivotally moves the
cover 108 from its open posture illustrated inFig. 14 to the closed posture illustrated inFig. 15 , after theink cartridge 30 is subjected to positioning in thecartridge attaching unit 110 and is in the locked state. The lockingpawl 118 is engaged with the lockedportion 119 when thecover 108 is at its closed posture. Thus, closed posture of thecover 108 can be maintained. Further, each of the intermediate threeprotrusions 121 among the totally fiveprotrusions 121 of thecover 108 is accommodated betweenribs 94 in the recessedportions 95 defined by the neighboringink cartridges 30 that are in the locked state. Further, therightmost protrusion 121 is positioned rightward of therib 94 at the recessedportion 95 of therightmost ink cartridge 30, and theleftmost protrusion 121 is positioned leftward of therib 94 at the recessedportion 95 of theleftmost ink cartridge 30. - Each upper surface of each
protrusion 121 accommodated in each recessedportion 95 is in contact with or is positioned adjacent to theback surface 99 of themanipulation portion 90. Such positional relationship between eachprotrusion 121 and eachback surface 99 prevents eachink cartridge 30 from pivotally moving from the first posture to the second posture. Incidentally, in case where theprotrusion 121 is positioned adjacent to theback surface 99, i.e., in case where a gap is provided between theprotrusion 121 and theback surface 99 at the closed posture of thecover 108, immediately after theink cartridge 30 starts pivotal movement from the first posture to the second posture, theprotrusion 121 is brought into abutment with theback surface 99 to prevent theink cartridge 30 from moving from the first posture to the second posture. - Assuming that the
ink cartridge 30 inserted into thecartridge attaching unit 110 remains in the second posture without pivotal movement from the second posture to the first posture as illustrated inFig. 16 . In the second posture of theink cartridge 30, the lockingsurface 151 is positioned below the lockingportion 145 in thedownward direction 53, and themanipulation portion 90 is positioned above the recessedportion 95. Further, thepivot axis 115 of thecover 108 extends in horizontal direction, and is positioned below theprotrusions 121 when thecover 108 is at the closed posture. - In a state where the
ink cartridge 30 is in the second posture in thecartridge attaching unit 110 and is positioned further in theremoval direction 52 relative to the position illustrated inFig. 16 , that is, in a state where theink cartridge 30 is in the unlocked state and is positioned backward of the position illustrated inFig. 16 in thebackward direction 58, theabutment portion 126 is brought into abutment with thelower portion 41L of therear surface 41 of theink cartridge 30 that is in the unlocked state by the pivotal movement of thecover 108 from its open posture toward its closed posture. By the further pivotal movement of thecover 108 toward its closed posture, theink cartridge 30 is pushed in theinsertion direction 51 by theabutment portion 126 as illustrated inFig. 16 , so that theunlocked ink cartridge 30 is moved in theinsertion direction 51 to a position where themanipulation portions 90 can abut on theprotrusions 121. - As illustrated in
Fig. 16 , in a process of pivotal movement of thecover 108 from the open posture to the closed posture, theprotrusions 121 are engaged with themanipulation portion 90 of theunlocked ink cartridge 30. In this instance, theguide surface 124 of theprotrusion 121 is brought into abutment with theguide surface 89 of themanipulation portion 90, and a force containing a component in theinsertion direction 51 is imparted on the guide surfaces 124 and 89, so that theunlocked ink cartridge 30 is further urged such that themanipulation portion 90 is moved in thedownward direction 53. That is, theunlocked ink cartridge 30 is moved in a direction away from the locked state. When thecover 108 is further pivotally moved toward the closed posture, theengagement portion 123 of theprotrusion 121 is engaged with themanipulation portion 90, or thetip end surface 122 of theprotrusion 121 is in abutment with themanipulation portion 90, so that theink cartridge 30 is further moved in theinsertion direction 51 in accordance with pivotal movement of thecover 108 while theink cartridge 30 is held so as not to pivotally move toward the first posture. -
Fig 17 illustrates a first length (distance) L1 and a second length (distance) L2. The first and second lengths L1, L2 are measured when the lockingsurface 151 is positioned at a stroke end position in theinsertion direction 51 as a result of movement of the lockingsurface 151 past the lockingportion 145 in theinsertion direction 51 while theprotrusion 121 is in abutment with themanipulation portion 90. The first length L1 is measured in theinsertion direction 51 from a rear end of themanipulation portion 90 to theinner surface 117 of thecover 108. More specifically, in the present embodiment, the first length L1 is measured from the rear end of themanipulation portion 90 to a boundary between theinner surface 117 and theprotrusion 121. The second length (distance) L2 is measured in theinsertion direction 51 from the lockingsurface 151 to a front end of the lockingportion 145. A third length (distance) L3 is obtained by subtracting the second length L2 from the first length L1 (L1-L2). -
Fig. 15 illustrates a fourth length (distance) L4. The fourth length is measured when theprotrusion 121 is inserted into the recessedportion 95 of theink cartridge 30 in its locked state and thecover 108 is at the closed posture. The fourth length L4 is measured in theinsertion direction 51 from the rear end of themanipulation portion 90 to theinner surface 117 of thecover 108. More specifically, in the present embodiment, the fourth length L4 is measured from the rear end of themanipulation portion 90 to a boundary between theinner surface 117 and theprotrusion 121. Here, L3 is greater than L4 (L3 > L4). Incidentally, the "stroke end position" is a frontmost position within the movable range where the lockingsurface 151 is capable of moving in theforward direction 57 and thebackward direction 58 in thecase 101. That is, the "stoke end position" of the lockingsurface 151 does not imply a stroke end position in theremoval direction 52, but the stroke end position in theinsertion direction 51, such that the lockingsurface 151 cannot be further moved forward anymore to exceed the stroke end position in thecase 101. - Because L3 is greater than L4, the locking
pawl 118 of thecover 108 is not engaged with the lockedportion 119 of thecasing 14, even if thecover 108 is pivotally moved toward the closed posture so that the lockingsurface 151 reaches the stroke end position after moving past the lockingportion 145 in theinsertion direction 51 while theprotrusion 121 is in abutment with themanipulation portion 90. With this arrangement, the user can recognize that theink cartridge 30 is not in the first posture. The user who recognizes that theink cartridge 30 is not in the first posture then moves thecover 108 toward its open posture, and again inserts theink cartridge 30 into thecartridge attaching unit 110 in an attempt to obtain the first posture of theink cartridge 30. That is, the above described arrangement prompts the user to obtain the first posture of theink cartridge 30, i.e., to obtain locked state. - For removing the
ink cartridge 30 from thecartridge attaching unit 110, the user pivotally moves thecover 108 from the closed posture toward the open posture. Thus, the user's access to theink cartridge 30 through theopening 112 can be performed. Then, the user pushes themanipulation surface 92 downward. As illustrated inFig. 14 , themanipulation surface 92 is visible when theink cartridge 30 is viewed in thedownward direction 53, and further, themanipulation surface 92 is also visible when theink cartridge 30 is viewed in the forward direction 57 (insertion direction 51) in the state where theink cartridge 30 is in the first posture. For releasing the locked state of theink cartridge 30 relative to thecartridge attaching unit 110 in the state where theink cartridge 30 is in the first posture, a force directed in thedownward direction 53 and in theinsertion direction 51 will be applied to theink cartridge 30 upon user's manipulation to themanipulation surface 92, because themanipulation surface 92 faces in theupward direction 54 and theremoval direction 52 in the state where theink cartridge 30 is in the first posture. The lockingsurface 151 is moved away from the lockingportion 145 by the force directed in theinsertion direction 51, and theink cartridge 30 is pivotally moved from the first posture toward the second posture (i.e., from the locked state to the unlocked state) about the ink supply portion 34 (more specifically, the pivot axis of the ink cartridge 30) by the force directed in thedownward direction 53. Accordingly, a force to be applied to themanipulation surface 92 by the user for pivotally moving theink cartridge 30 from the first posture to the second posture can be reduced in comparison with a situation where the lockingsurface 151 maintains sliding contact with the lockingportion 145 during the pivotal movement of theink cartridge 30 from the first posture to the second posture. In this way, theink cartridge 30 is capable of changing its posture from the first posture to the second posture about theink supply portion 34. In other words, theink cartridge 30 is pivotally movable from the first posture to the second posture about theink supply portion 34. - The locking
surface 151 becomes lower than the lockingportion 145 as a result of pivotal movement of theink cartridge 30 from the first posture to the second posture. Then, theink cartridge 30 is moved relative to thecartridge attaching unit 110 in theremoval direction 52 because of the biasing force of thecoil spring 78. Thus, theink needle 102 is moved away from thevalve body 77 and biasing force of thecoil spring 78 to be applied to theink cartridge 30 becomes void. Consequently, inertial force applied to theink cartridge 30 disappears to terminate movement of theink cartridge 30 in theremoval direction 52. In this instance, therear cover 31 of theink cartridge 30 is positioned outward of thecase 101 of thecartridge attaching unit 110 through theopening 112. Therefore, the user can nip therear cover 31 to take out theink cartridge 30 from thecartridge attaching unit 110. - As described above, the
ink supply apparatus 100 according to the above-described embodiment of the present invention is capable of enabling the user to recognize the unlocked state of theink cartridge 30 relative to thecartridge attaching unit 110 through opening and closing operation of thecover 108, and also is capable of preventing theink cartridge 30 from being released or unlocked relative to thecartridge attaching unit 110 from the locked state of theink cartridge 30 in a state where thecover 108 is closed. - According to the above-described embodiment, the
protrusion 121 is accommodated in the recessedportion 95 of theink cartridge 30 to prevent theink cartridge 30 from changing its posture to the second posture in a state where theink cartridge 30 is in the first posture in thecartridge attaching unit 110 and thecover 108 is in the close posture. - In a state where the ink cartridge is in the second posture in the
cartridge attaching unit 110, theprotrusion 121 is brought into abutment with themanipulation portion 90 during the process of pivotal movement of thecover 108 from the open posture toward the closed posture. In accordance with the pivotal movement of thecover 108, theprotrusion 121 pushes themanipulation portion 90 in theinsertion direction 51, so that theink cartridge 30 is moved in theinsertion direction 51. Here, since the third length L3 is greater than the fourth length L4, thecover 108 does not change its posture to the closed posture even if theink cartridge 30 is pushed in theinsertion direction 51 until the lockingsurface 151 reaches its stroke end position. Thus, the user can recognize that theink cartridge 30 is not in the first posture. - Further, since the
protrusion 121 has the tip end portion provided with theengagement portion 123 engageable with themanipulation portion 90 of theink cartridge 30, theink cartridge 30 moving in theinsertion direction 51 by the pivot motion of thecover 108 is securely held so as not to move to the first posture. - Further, the
engagement portion 123 is provided with theguide surface 124. Theguide surface 124 guides themanipulation portion 90 of theink cartridge 30 so as to change the posture of theink cartridge 30 to the second posture when abutting on themanipulation portion 90. Thus, theink cartridge 30 is securely prevented from changing its posture to the first posture when theprotrusion 121 is brought into abutment with themanipulation portion 90. - Further, the
manipulation portion 90 of theink cartridge 30 has thesub-upper surface 91 overlapping with themanipulation surface 92 when viewed in thedownward direction 53 and the recessedportion 95 is formed between themanipulation surface 92 and thesub-upper surface 91. Thus, the user can easily recognize themanipulation surface 92 because of the presence of the recessedportion 95. - Further, reinforcement to the
manipulation surface 92 can be secured, because therib 94 extends from thesub-upper surface 91 to theback surface 99 of themanipulation portion 90 in the recessedportion 95. - Further, the four
ink cartridges 30 can be attached to thecartridge attaching unit 110 such that the fourink cartridges 30 are arrayed in the direction perpendicular to theinsertion direction 51, and each of the intermediate three protrusions121 among the fiveprotrusions 121 is accommodated between each of the neighboringribs 94 of the neighboring recessedportions 95 of the neighboringink cartridges 30 locked in thecartridge attaching unit 110. Therefore, the number of theprotrusions 121 to be provided at thecover 108 can be smaller than the number of theink cartridges 30 attachable to thecartridge attaching unit 110. Consequently, degree of freedom in designing theprotrusions 121 to be provided at thecover 108 can be improved. Incidentally, in the depicted embodiment, fiveprotrusions 121 including the intermediate three protrusions are provided. However, the leftmost and rightmost protrusions can be dispensed with, thereby improving the degree of freedom. - Further, the
cover 108 is provided with theabutment portion 126 configured to abut on thelower portion 41L of therear surface 41 of theink cartridge 30 to move theink cartridge 30 having the second posture in theinsertion direction 51 to the position where theprotrusions 121 can abut on themanipulation portion 90 during the process of pivot movement of thecover 108 from the open posture toward the closed posture. With this structure, a constant pivot position of thecover 108 at the time of abutment of theprotrusion 121 onto themanipulation portion 90 can be obtained. Consequently, stabilized abutment condition between themanipulation portion 90 and theprotrusion 121 can be obtained. - The
cover 108 can be locked to thecasing 14 at the closed posture to prevent pivotal movement of thecover 108 toward the open posture. Further, thecover 108 cannot be locked to thecasing 14 in spite of the pivotal movement of thecover 108 toward the closed posture until the lockingsurface 151 is moved past the lockingportion 145 in the above-described first direction (i.e., the insertion direction 51) to reach the stroke end position of the lockingsurface 151 by abutment of theprotrusion 121 and themanipulation portion 90. Thus, thecover 108 cannot be locked to thecasing 14 even if theink cartridge 30 is pushed in theinsertion direction 51 until the lockingsurface 151 reaches the stroke end position. Consequently, the user can recognize that theink cartridge 30 is not in the first posture. - In the above-described embodiment, the
manipulation surface 92 and the lockingsurface 151 are provided at theupper surface 39 of therear cover 31. However, themanipulation surface 92 and the lockingsurface 151 can be provided at theside surface lower surface 42 of therear cover 31. Alternatively, themanipulation surface 92 and the lockingsurface 151 can be provided at any one of theupper surface 141,lower surface 142 andside surfaces front cover 32. - Further, in the above-described embodiment, a plurality of
ink cartridges 30 can be attached to thecartridge attaching unit 110. However, the number of the ink cartridge attached to thecartridge attaching unit 110 is not limited. A single ink cartridge may be attached to thecartridge attaching unit 110. - Further, in the above-described embodiment, the
coil spring 78 adapted to urge theink cartridge 30 in theremoval direction 52 is provided in theink cartridge 30. However, an urging member instead of thecoil spring 78 can be provided in theink cartridge 30 at a position different from the position of thecoil spring 78. Alternatively, an urging member can be provided at thecartridge attaching unit 110. For example, a slider and a spring for urging the slider in theremoval direction 52 are provided at theguide groove 109 of thecartridge attaching unit 110. In the latter case, one of the first protrudingportion 85 and the second protrudingportion 86 of theink cartridge 30 inserted into thecartridge attaching unit 110 is contacted with and pressed by the slider in theinsertion direction 51 to urge theink cartridge 30 in theremoval direction 52. - Although ink has been described as an example of a liquid in the embodiment described above, a preprocessing liquid may be retained in the liquid cartridge instead of the ink. The preprocessing liquid is adapted to be expelled to a recoding sheet before an ink is expelled. Alternatively, water for cleaning the
recording head 21 may be retained in the liquid cartridge.
Claims (9)
- A liquid supply apparatus (100) to which a liquid cartridge (30) is attachable by an insertion of the liquid cartridge (30) in a first direction (51, 57) against a biasing force directed in a second direction (52, 58) opposite to the first direction (51, 57), the liquid cartridge (30) including:a liquid retaining chamber (36);a front surface (140) which faces in the first direction (51) in a state of the insertion;a rear surface (41) disposed opposite to the front surface (140), the liquid retaining chamber (36) being interposed between the rear surface (41) and the front surface (140);a side surface (39, 141) extending between the front surface (140) and the rear surface (41);a liquid supply portion (34) provided at the front surface (140);a locking surface (151) provided at the side surface (39, 141);a recess (95) opening in the second direction (52, 58); anda first portion (90) accessible from an outside of the liquid cartridge (30) in the first direction (51, 57),the liquid supply apparatus (100) comprising an attaching portion (110) having an opening (112) through which the liquid cartridge (30) is inserted into the attaching portion (110), the attaching portion comprising:a liquid supply tube (102) configured to be inserted into the liquid supply portion (34);a locking portion (145) configured to be abutted on the locking surface (151); anda cover (108) pivotally movable between an open posture opening the opening (112) and a closed posture closing the opening (112), the cover (108) having a second portion (117) and a protrusion (121) protruding from the second portion (117),wherein the liquid cartridge (30) is pivotally movable in the attaching portion (110) between a first posture and a second posture in a state where the liquid supply tube (102) is inserted into the liquid supply portion (34), the locking surface (151) of the liquid cartridge (30) in the first posture being in confrontation with and capable of abutting on the locking portion (145) in the first direction (51, 57) and the second direction (52, 58), the locking surface (151) of the liquid cartridge (30) in the second posture being not in confrontation with the locking portion (145) in the first direction (51, 57) and the second direction (52, 58), the liquid cartridge (30) in the first posture being brought into a locked state where the liquid cartridge (30) is locked relative to the attaching portion (110) by abutment of the locking surface (151) with the locking portion (145) in the second direction (52, 58) against the biasing force,
wherein the protrusion (121) of the cover (108) in the closed posture is accommodated in the recess (95) of the liquid cartridge (30) in the locked state and prevents the liquid cartridge (30) in the locked state from moving toward the second posture,
wherein, in a state where the liquid cartridge (30) is in the second posture in the attaching portion (110) and in a process of the pivotal movement of the cover (108) from the open posture toward the closed posture, the protrusion (121) of the cover (108) abuts on the first portion (90) to move the liquid cartridge (30) in the first direction (51, 57) until the locking surface (151) is positioned further in the first direction (51, 57) relative to the locking portion (145) while the cover (108) holds the liquid cartridge (30) to prevent the liquid cartridge (30) from changing its posture to the first posture, and
wherein the following relationship in lengths is provided such that
L3 > L4, and L3 = L1 - L2 in whichL1 : a distance between a rear end of the first portion (90) and the second portion (117) in the first direction (51, 57) in a state where the protrusion (121) is in abutment with the first portion (90) and the locking surface (151) is positioned at a stroke end position, the locking surface (151) moving past the locking portion (145) in the first direction (51, 57) to reach the stroke end position of the locking surface (151) during the pivotal movement of the cover (108) from the open posture toward the closed posture;L2: a distance between the locking surface (151) and a front end of the locking portion (145) in the first direction in the state where the protrusion (121) is in abutment with the first portion (90) and the locking surface (151) is positioned at the stroke end position; andL4: a distance between the rear end of the first portion (90) and the second portion (117) in the first direction (51) in a state where the protrusion (121) of the cover (108) in the closed posture is accommodated in the recess (95) of the liquid cartridge (30) in the locked state. - The liquid supply apparatus (100) according to claim 1, wherein the protrusion (121) has an tip end (122) on which an engagement portion (123) is provided, the tip end (122) being configured to abut on the first portion (90), the engagement portion (123) being configured to engage the first portion (90), the first portion (90) in abutment with the tip end (122) being in engagement with the engagement portion (123), the engagement portion (123) in engagement with the first portion (90) preventing the liquid cartridge (30) from changing its posture toward the first posture.
- The liquid supply apparatus (100) according to claim 2, wherein the engagement portion (123) has a guide surface (124) configured to guide the first portion (90), the guide surface (124) of the engagement portion (123) in abutment with the first portion (90) guiding the first portion (90) such that the liquid cartridge (30) changes its posture toward the second posture.
- The liquid supply apparatus (100) according to any one of claims 1 through 3, wherein the side surface (39, 141) of the liquid cartridge (30) is provided with a manipulation surface (92) and a sub-side surface (91), the manipulation surface (92) disposed at a position closer to the rear surface (41) than the locking surface (151) to the rear surface (41), the sub-side surface (91) overlapping with the manipulation surface (92) when viewed in a direction perpendicular to the side surface (39, 141), the recess (95) being defined between the manipulation surface (92) and the sub-side surface (91).
- The liquid supply apparatus (100) according to claim 4, the liquid cartridge (30) is provided with a rib (94) extending from the sub-side surface (91) to a back surface (99) of the manipulation surface (92) in the recess (95).
- The liquid supply apparatus (100) according to claim 5, wherein a plurality of cartridges (30) are attachable to the attaching portion (110), the plurality of liquid cartridges (30) attached to the attaching portion (110) being arrayed in a direction perpendicular to the first direction (51, 57), the protrusion (121) being accommodated between the neighboring ribs (94) of the neighboring liquid cartridges that are in the locked state.
- The liquid supply apparatus (100) according to any one of claims 1 through 6, wherein the cover (108) includes an abutment portion (126) configured to, during the pivotal movement of the cover (108) from the open posture toward the closed posture, abut on the rear surface (41) of the liquid cartridge (30) to move the liquid cartridge (30) in the second posture in the first direction (51, 57) until the liquid cartridge (30) reaches a position where the first portion (90) is capable of abutting on the protrusion (121).
- The liquid supply apparatus (100) according to any one of claims 1 through 7, wherein the cover (108) in the closed posture is locked and prevented from pivotally moving toward the open posture, and
wherein, in a state where the protrusion (121) is in abutment with the first portion (90) and the locking surface (151) is positioned at the stroke end position, the locking of the cover (108) is prevented. - The liquid supply apparatus (100) according to any one of claims 1 through 8, wherein the first direction (51, 57) is a horizontal direction,
wherein the side surface (39, 141) is an upper surface, which faces upward, of the liquid cartridge (30) inserted in the attaching portion (110),
wherein the locking surface (151) of the liquid cartridge (30) in the second posture is positioned below the locking portion (145) and the first portion (90) of the liquid cartridge (30) in the second posture is positioned above the recess (95), and
wherein the attaching portion further comprises a pivot axis (115) about which the cover (108) is pivotally movable, the pivot axis (115) extending in the horizontal direction and is positioned below the protrusion (121) of the cover (108) in the closed posture.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015198179A JP6597146B2 (en) | 2015-10-06 | 2015-10-06 | Liquid supply device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3153320A1 true EP3153320A1 (en) | 2017-04-12 |
EP3153320B1 EP3153320B1 (en) | 2020-11-18 |
Family
ID=57018086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16191131.8A Active EP3153320B1 (en) | 2015-10-06 | 2016-09-28 | Liquid supply apparatus |
Country Status (3)
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EP (1) | EP3153320B1 (en) |
JP (1) | JP6597146B2 (en) |
CN (1) | CN106985534B (en) |
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US10118399B2 (en) | 2017-03-27 | 2018-11-06 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with snap-fit mechanism capable of suppressing detachment of cap |
WO2019026121A1 (en) * | 2017-07-31 | 2019-02-07 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge and system therefor |
US10343410B2 (en) | 2017-03-27 | 2019-07-09 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of reducing remaining amount of liquid in liquid storage chamber |
US10357976B2 (en) | 2017-03-27 | 2019-07-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with liquid supply portion having guide groove |
EP3546223A1 (en) * | 2018-03-29 | 2019-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion and system using the same |
US10449771B2 (en) | 2017-03-27 | 2019-10-22 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of improving visibility to liquid stored in liquid storage chamber |
US10493765B2 (en) | 2017-03-27 | 2019-12-03 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of reducing leakage of liquid from liquid storage chamber |
US10688794B2 (en) | 2017-09-29 | 2020-06-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion |
CN114103466A (en) * | 2020-08-31 | 2022-03-01 | 兄弟工业株式会社 | Liquid box |
CN114932753A (en) * | 2021-08-20 | 2022-08-23 | 珠海市拓佳科技有限公司 | Unlocking assembly and ink box |
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JP7000729B2 (en) * | 2017-07-31 | 2022-01-19 | ブラザー工業株式会社 | Liquid consuming device |
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US10493765B2 (en) | 2017-03-27 | 2019-12-03 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of reducing leakage of liquid from liquid storage chamber |
US11571907B2 (en) | 2017-03-27 | 2023-02-07 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with liquid supply portion having guide groove |
US10343410B2 (en) | 2017-03-27 | 2019-07-09 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of reducing remaining amount of liquid in liquid storage chamber |
US10357976B2 (en) | 2017-03-27 | 2019-07-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with liquid supply portion having guide groove |
US10118399B2 (en) | 2017-03-27 | 2018-11-06 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with snap-fit mechanism capable of suppressing detachment of cap |
US10449771B2 (en) | 2017-03-27 | 2019-10-22 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of improving visibility to liquid stored in liquid storage chamber |
US11890876B2 (en) | 2017-03-27 | 2024-02-06 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with liquid supply portion having guide groove |
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US11077669B2 (en) | 2017-03-27 | 2021-08-03 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge capable of reducing leakage of liquid from liquid storage chamber |
US11065880B2 (en) | 2017-03-27 | 2021-07-20 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with liquid supply portion having guide groove |
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US10688794B2 (en) | 2017-09-29 | 2020-06-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion |
EP3546223A1 (en) * | 2018-03-29 | 2019-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion and system using the same |
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CN114932753A (en) * | 2021-08-20 | 2022-08-23 | 珠海市拓佳科技有限公司 | Unlocking assembly and ink box |
Also Published As
Publication number | Publication date |
---|---|
EP3153320B1 (en) | 2020-11-18 |
CN106985534A (en) | 2017-07-28 |
JP2017071091A (en) | 2017-04-13 |
JP6597146B2 (en) | 2019-10-30 |
CN106985534B (en) | 2019-10-22 |
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