WO2012086171A1 - カートリッジ - Google Patents
カートリッジ Download PDFInfo
- Publication number
- WO2012086171A1 WO2012086171A1 PCT/JP2011/007077 JP2011007077W WO2012086171A1 WO 2012086171 A1 WO2012086171 A1 WO 2012086171A1 JP 2011007077 W JP2011007077 W JP 2011007077W WO 2012086171 A1 WO2012086171 A1 WO 2012086171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cartridge
- axis direction
- printing material
- axis
- insertion hole
- Prior art date
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Classifications
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- 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
-
- 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
- B41J2/17526—Electrical contacts to the cartridge
-
- 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
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/1755—Cartridge presence detection or type identification mechanically
-
- 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
Definitions
- the present invention relates to a cartridge that accommodates a printing material therein.
- a printer which is an example of a printing apparatus, performs printing by ejecting ink from a print head onto a recording object (for example, printing paper).
- a technique for supplying ink to a print head a technique using an ink cartridge (also simply referred to as “cartridge”) that contains ink therein is known.
- the print head is operated in a state where ink is not supplied from the cartridge to the print head, there may be a problem that the print head is damaged due to so-called idle driving. Therefore, a technique is known in which detection means for detecting a state in which the ink in the cartridge is exhausted or a state in which the ink is low is mounted on the cartridge or the printer (for example, Patent Documents 1 and 2). A state in which the ink is exhausted or a state in which the ink is low is called an ink end.
- Patent Document 1 detects an ink end using a piezoelectric detection means.
- a liquid detection unit is provided in a cartridge, and a change in the volume of a detection chamber is detected by a piezoelectric detection unit, thereby detecting an ink end.
- electric supply means (wiring, electrode terminals, etc.) for supplying power to the piezoelectric detection means and exchanging signals between the piezoelectric detection means and the printer are provided in the cartridge. Necessary. For this reason, the structure of the cartridge becomes complicated, which may increase the size of the cartridge and increase the manufacturing cost.
- Patent Document 2 detects an ink end by an optical detection mechanism. An ink end is detected by providing a structure whose position changes with a change in the volume of the sub tank, and detecting the displacement of the structure with an optical sensor. In the technique of Patent Document 2, if the positional relationship among the sub tank, the structure, and the optical sensor deviates from the designed accurate positional relationship, the ink end may not be detected.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a technique for suppressing an increase in size of a cartridge or a printing apparatus. It is another object of the present invention to provide a technique for accurately positioning a cartridge with respect to a cartridge mounting portion of a printing apparatus. It is another object of the present invention to provide a technique that can accurately detect the end of a printing material.
- the present invention has been made to solve at least a part of the above problems, and can be realized as the following forms or application examples.
- Three spatial axes orthogonal to each other are defined as an X-axis, a Y-axis, and a Z-axis, and directions along the X-axis, the Y-axis, and the Z-axis are defined as an X-axis direction, a Y-axis direction, and a Z-axis direction, respectively.
- the cartridge described in the application example 1 is not provided with a piezoelectric detection mechanism for detecting that the printing material in the cartridge is exhausted or remaining (referred to as “end detection”). As a result, it is not necessary to provide electric conduction means (wiring, electrode terminals, etc.) for power supply and signal transmission / reception between the detection mechanism and the printer inside the cartridge. it can. Therefore, the cartridge can be reduced in size. Further, the manufacturing cost of the cartridge can be reduced.
- the first insertion hole is provided at an intermediate position between the first side surface and the second side surface of the front surface. That is, the cartridge is positioned at an intermediate position in the longitudinal direction of the front surface.
- the position shift near one end can be suppressed, but the position shift near the other end cannot be suppressed. Also, the deviation becomes large.
- the cartridge of Application Example 1 since the positioning is performed at the middle position in the longitudinal direction of the front surface of the cartridge, the positional deviation between both end portions in the longitudinal direction can be equally suppressed. Therefore, the cartridge can be accurately and efficiently positioned with respect to the cartridge mounting portion.
- the “intermediate position” used for “an intermediate position between the first apparatus side wall part and the second apparatus side wall part” and “an intermediate position between the first side surface and the second side surface” It is not necessary to be completely in the middle, and it is sufficient that it is not biased to either one of the side surface or the side wall.
- the “intermediate position” includes a position shifted from the center position of the first side surface and the second side surface in the Z-axis direction.
- the “intermediate position” includes a position where the central axis of the first insertion hole is within 10% of the center position with respect to the distance between the first side surface and the second side surface in the Z-axis direction. .
- the “intermediate position” is a distance from the center position to the distance between the first side surface and the second side surface in the Z-axis direction so that the center axis of the first insertion hole is disposed more intermediately. It is preferable to include a position within a range of 5% or less.
- the cartridge according to Application Example 1 further comprising: A detection chamber which is provided in the middle of the printing material flow path and whose volume changes in accordance with a change in internal pressure; A cartridge comprising: a lever member that contacts the tip of the rod, and a lever member that moves the rod along the axial direction by being displaced according to a change in the volume of the detection chamber.
- the rod used for detecting the end of the printing material is inserted into the first insertion hole, so that the cartridge can be attached to the cartridge mounting portion at a position intermediate in the longitudinal direction of the front surface of the cartridge. Positioning is performed.
- the position shift of the cartridge with respect to the rod can be suppressed, and the end detection of the printing material can be accurately performed. Further, since the cartridge is positioned with respect to the cartridge mounting portion using the rod used for detecting the end of the printing material, it is not necessary to provide a separate positioning member, and the number of parts can be reduced, and the cartridge can be downsized. In addition, the printing apparatus to which the cartridge is mounted can be reduced in size.
- Application Example 3 The cartridge according to Application Example 1 or Application Example 2, A cartridge in which a rod cover disposed on an outer periphery of the rod is also inserted into the first insertion hole. According to the cartridge described in the application example 2, the rod can be prevented from coming into contact with the wall forming the first insertion hole, so that the rod can be smoothly moved in accordance with the change in the volume of the detection chamber. Thereby, the end detection of the printing material can be performed more accurately.
- the cartridge according to any one of Application Examples 1 to 3, is A protective container having an opening on the ⁇ Y-axis direction side, in which the printing material container is housed; A cap provided on the ⁇ Y-axis direction side and attached to the protective container so as to close the opening of the protective container; The cartridge, wherein the second insertion hole and the first insertion hole are provided in the cap.
- the case includes the protective container and the cap, and the cap is provided with the second insertion hole and the first insertion hole.
- the protective container side in which the printing material container is accommodated is heavier as a whole than the cap side.
- the entire cartridge is tilted so that the rear side is lower than the front side.
- the protective container for storing the printing material container and the cap are separate members, the protective container can be moved slightly with respect to the cap by the clearance between the cap and the protective container. It becomes possible to do. Therefore, even if the weight of the printing material container is large, only the portion of the protective container is tilted, and the cap can be kept in a correct posture without tilting. Thereby, in the mounting state, it is possible to reduce the possibility that the position of the second insertion hole provided in the cap or the position of the first insertion hole with respect to the cartridge mounting portion deviates from the designed correct position.
- the cartridge according to Application Example 4 further including: In the mounted state, comprising a cartridge side terminal group that comes into contact with a device side terminal group provided in the cartridge mounting portion,
- the cartridge side terminal group is a cartridge provided on the cap.
- the cartridge side terminal group in the mounted state, is provided on the cap that is less likely to be displaced from the correct position, thereby electrically connecting the cartridge side terminal group and the apparatus side terminal group. Can be achieved stably.
- the cap has a first side surface constituting a part of the first side surface of the case, and a second side surface constituting a part of the second side surface of the case,
- the first side surface of the cap is provided with a first convex portion that protrudes in the + Z-axis direction.
- the first convex portion is inserted into the cartridge mounting portion when the cartridge is inserted into the cartridge mounting portion and from the cartridge mounting portion.
- the second side surface of the cap is provided with a second convex portion projecting in the ⁇ Z-axis direction, and the second convex portion is used when the cartridge is inserted into the cartridge mounting portion and the cartridge is inserted into the cartridge mounting portion.
- the second device side wall portion extends in the Y-axis direction and is guided by a second rail having a different dimension in the X-axis direction from the first rail.
- the cartridge in which the dimension of the X-axis direction of the first convex portion and the second convex portion is different.
- the cartridge described in Application Example 6 since the first convex portion and the second convex portion having different dimensions in the X-axis direction are provided, the dimension in the X-axis direction of the first rail is made to correspond to the first convex portion, By making the size of the two rails in the X-axis direction correspond to the second convex portion, the cartridge is mounted in a wrong state in which the first side surface and the second side surface of the cartridge are reversed from the original positional relationship. Can be prevented.
- the protective container has a first side surface constituting another part of the first side surface of the case, and a second side surface constituting another part of the second side surface of the case, A first container-side convex portion protruding in the + Z-axis direction is provided on the first side surface of the protective container, and the first container-side convex portion is inserted when the cartridge is inserted into the cartridge mounting portion.
- the second side surface of the protective container is provided with a second container-side convex portion protruding in the ⁇ Z-axis direction, and the second container-side convex portion is used when the cartridge is inserted into the cartridge mounting portion.
- a portion on the + Y-axis direction side of at least one of the first container-side convex portion and the second container-side convex portion is compared with other portions located on the ⁇ Y-axis direction side with respect to the portion.
- at least one of the first container-side convex portion and the second container-side convex portion has a portion whose dimension in the X-axis direction is larger than other portions.
- Application Example 8 The cartridge according to any one of Application Examples 1 to 7, The cartridge has an opening end on the ⁇ Y axis direction side of the first insertion hole provided at a position where the rod is inserted before the printing material supply pipe is inserted into the printing material supply port. According to the cartridge described in Application Example 8, after the printing material cartridge is guided to the correct position in the cartridge mounting portion by the rod, the connection between the printing material supply pipe and the printing material supply port is performed. Therefore, it is possible to prevent the printing material supply pipe from being damaged when the leading end of the printing material supply pipe collides with a position different from the printing material supply port of the cartridge.
- Application Example 10 The cartridge according to Application Example 8 or Application Example 9, further comprising: A cartridge-side identification member for identifying the type of the cartridge depending on whether or not the device-side identification member provided in the cartridge mounting portion can be fitted; The cartridge side identification member is fitted with the apparatus side identification member after the rod is inserted into the first insertion hole and before the printing material supply pipe is inserted into the printing material supply port. A cartridge that is configured to initiate mating.
- the cartridge side identification member is the device side identification member. In this case, further insertion of the cartridge can be inhibited. Therefore, the possibility that an incorrect type of cartridge is connected to the printing material supply pipe can be reduced. Further, after the rod is inserted into the first insertion hole and the cartridge is positioned with respect to the cartridge mounting portion, the fitting of the apparatus side identification member and the cartridge side identification member is started. Thereby, the position shift of the cartridge side identification member with respect to the apparatus side identification member can be suppressed.
- the possibility that the cartridge-side identification member hits the apparatus-side identification member and the fitting is hindered can be reduced. Further, when an incorrect type of cartridge is to be mounted on the cartridge mounting portion, the cartridge-side identification member can reliably contact the apparatus-side identification member, and further insertion of the cartridge can be hindered. Therefore, the possibility that an incorrect type of cartridge is connected to the printing material supply pipe can be reduced.
- the printing material supply port, the opening end of the first insertion hole, and the end of the cartridge side identification member in the ⁇ Y-axis direction are in a predetermined positional relationship. After that, and before the printing material supply pipe is inserted into the printing material supply port, the engagement between the cartridge side identification member and the apparatus side identification member can be started.
- the cartridge-side identification member is formed of at least one or more ribs, and a pattern determined by the number and position of the ribs varies depending on the type of the cartridge. It is preferable.
- the cartridge side identification member can be formed with a simple configuration using ribs.
- the first insertion hole has a predetermined length in the Y-axis direction
- the cartridge has an area of an opening end on the ⁇ Y axis direction side of the first insertion hole smaller than an area of an opening end of the first insertion hole in the + Y axis direction.
- the opening end on the ⁇ Y axis direction side that first receives the rod is wider than the opening end on the + Y axis direction side that is the other opening end. It has become. Therefore, the cartridge can be positioned more accurately by inserting the rod to the opening end on the + Y-axis direction side while making the rod easy to be received in the first insertion hole.
- the cartridge according to Application Example 12 The cartridge according to Application Example 12,
- the first insertion hole is composed of one end side portion extending from the connection portion to the opening end on the ⁇ Y axis direction side, and the other end side portion extending from the connection portion to the opening end on the + Y axis direction side,
- the one end side portion is a truncated cone whose cross section parallel to the X axis and the Z axis is a circle
- the other end portion has a shape in which a cross section parallel to the X-axis and the Z-axis is formed by a combination of a pair of straight lines facing each other in the Z-axis direction and two arcs facing each other in the X-axis direction.
- a distance between the pair of straight lines constituting the cross section of the other end side portion is smaller than a diameter of the circle constituting the cross section of the one end side portion, and the distance of the other end side portion is
- a diameter of the pair of arcs constituting the cross section is the same as a diameter of the circle constituting the cross section of the one end side portion.
- the area of the cross section gradually decreases from the opening end on the ⁇ Y axis direction side toward the connection portion. Then, the shape of the cross section changes at the connection portion, that is, the entrance of the other end portion, and only the dimension in the Z-axis direction becomes small.
- the dimension in the X-axis direction does not change.
- the shape and area of the cross section do not change from the connecting portion to the opening end on the + Y axis direction side. Therefore, the rod can be smoothly guided from the one end side portion to the other end side portion.
- a gap is provided between the rod and the first insertion hole so that the rod can be smoothly guided to the opening end on the + Y-axis direction side, while in the Z-axis direction. makes it possible to stabilize the position of the rod and accurately position the cartridge with respect to the cartridge mounting portion.
- the present invention can be realized in various forms, and in addition to the configuration as a cartridge, the invention can be realized in aspects such as a cartridge manufacturing method, a printing apparatus, and a printing material supply system including the cartridge and the printing apparatus. Can do.
- FIG. 1 is a perspective view illustrating a configuration of a printing material supply system 1.
- FIG. FIG. 6 is a front view of a cartridge mounting portion 42.
- 4 is a side view of a cartridge mounting portion 42.
- FIG. It is a figure for demonstrating the detection method of an ink end.
- 3 is an exploded perspective view of a cartridge 50.
- FIG. 2 is an external perspective view of a cartridge 50.
- FIG. 4 is a front view of the cartridge 50.
- FIG. FIG. 7B is a cross-sectional view taken along a plane including the central axis Ce of the first insertion hole 53, which is a part of the 7X-7X cross section of FIG. 7B is a part of a 7Z-7Z cross section of FIG.
- FIG. 7A which is a cross section obtained by cutting the cartridge 50 along a plane parallel to the Z axis and the Y axis and including the central axis Ce of the first insertion hole 53.
- FIG. It is the figure which showed the cross section parallel to the Z-axis and the X-axis of the one end side part 53y and the other end side part 53t in the connection part 53h.
- 4 is a schematic diagram for explaining an internal configuration of a cartridge 50.
- FIG. It is a 1st schematic diagram which shows a mode that a cartridge is mounted in a cartridge mounting part.
- It is the 2nd schematic diagram which shows a mode that a cartridge is mounted in a cartridge mounting part.
- FIG. 10 is a third schematic diagram illustrating how a cartridge is mounted in the cartridge mounting unit.
- FIG. 5 is an exploded perspective view showing a configuration of a printing material supply unit 74.
- FIG. FIG. 6 is a diagram illustrating a state in which ink is supplied to a cartridge mounting unit.
- FIG. 6 is a diagram illustrating a state in which ink is supplied to a cartridge mounting unit.
- FIG. 6 is an explanatory view showing a configuration of a lever member 120. It is the 1st figure for explaining detection of an ink end. It is a 2nd figure for demonstrating the detection of an ink end.
- FIG. 11 is a third diagram for explaining ink end detection. It is a figure for demonstrating the cartridge 50a of the 1st modification.
- FIG. 1 is a perspective view illustrating a configuration of a printing material supply system 1.
- XYZ axes orthogonal to each other are drawn.
- the XYZ axes are drawn as necessary in the subsequent drawings.
- the directions of the XYZ axes drawn in other drawings correspond to the XYZ axes in FIG.
- the printing material supply system 1 includes a printer 10 as a printing apparatus and a cartridge 50.
- the printer 10 of this embodiment is an ink jet printer that ejects ink from the head 22.
- the cartridge 50 contains ink as a printing material inside.
- the ink accommodated in the cartridge 50 flows through the tube 24 and is supplied to the head 22 of the carriage 20.
- the printer 10 mainly includes a cartridge mounting unit 42, a control unit 60, a carriage 20, a head 22, and a drive mechanism 30.
- the printer 10 includes an operation button 15 for the user to operate the operation of the printer 10.
- the cartridge 50 is detachably mounted on the cartridge mounting portion 42.
- four types of cartridges 50 corresponding to four colors (black, yellow, magenta, and cyan) of ink are installed one by one, that is, a total of four cartridges 50 are mounted on the cartridge mounting unit 42.
- a replacement cover 13 is provided on the front surface (the surface on the + Y axis direction side). When the + Z-axis side of the replacement cover 13 is tilted forward (+ Y-axis direction side), the opening of the cartridge mounting portion 42 appears, and the cartridge 50 can be attached and detached.
- ink can be supplied to the head 22 provided on the carriage 20 via the tube 24.
- ink is supplied to the head 22 by sucking ink in the cartridge 50 by a pump mechanism (not shown) of the printer 10.
- the tube 24 is provided for each type of ink.
- the head 22 is provided with a nozzle for each type of ink.
- the head 22 prints data such as characters and images by ejecting ink from the ejection nozzle toward the printing paper 2.
- the manner in which the cartridge 50 is mounted on the cartridge mounting portion 42 and the detailed configuration of the cartridge 50 and the cartridge mounting portion 42 will be described later.
- the printer 10 is a so-called “off-carriage type” printer in which the cartridge mounting portion 42 does not interlock with the movement of the carriage 20.
- the present invention can also be applied to a so-called “on-carriage type” printer in which a cartridge mounting portion 42 is provided in the carriage 20 and the cartridge mounting portion 42 moves together with the carriage 20.
- the control unit 60 controls each unit of the printer 10 and exchanges signals with the cartridge 50.
- the carriage 20 moves the head 22 relative to the printing paper 2.
- the drive mechanism 30 reciprocates the carriage 20 based on a control signal from the control unit 60.
- the drive mechanism 30 includes a timing belt 32 and a drive motor 34. By transmitting the power of the drive motor 34 to the carriage 20 via the timing belt 32, the carriage 20 reciprocates in the main scanning direction (X-axis direction).
- the printer 10 also includes a transport mechanism for moving the printing paper 2 in the sub-scanning direction (+ Y axis direction). When printing is performed, the printing paper 2 is moved in the sub-scanning direction by the transport mechanism, and the printing paper 2 after printing is output onto the front cover 11 from the opening 12.
- an area called a home position is provided at a position outside the printing area where the carriage 20 is moved in the main scanning direction, and a maintenance mechanism for performing maintenance so that printing can be performed normally is installed at the home position.
- the maintenance mechanism is pressed against the surface (nozzle surface) on which the nozzle is formed on the bottom surface side (side facing the printing paper 2) of the head 22, and forms a closed space so as to surround the ejection nozzle.
- An elevating mechanism (not shown) for raising and lowering the cap member 5 to press against the nozzle surface of the head 22 and a negative pressure is introduced into the closed space formed by pressing the cap member 5 against the nozzle surface of the ejection head 22
- a suction pump (not shown).
- the axis along the sub-scanning direction (front-rear direction) for transporting the printing paper 2 is the Y axis
- the axis along the gravity direction (vertical direction) is the Z axis.
- the axis along the moving direction (left-right direction) of the carriage 20 is defined as the X axis.
- the sub-scanning direction (front direction) is the + Y axis direction
- the opposite direction (rear direction) is the ⁇ Y axis direction
- the direction from the lower side to the upper side of the gravity direction (upward direction) is the + Z axis direction.
- the opposite direction (downward) is taken as the ⁇ Z axis direction.
- the printing material supply system 1 When the printing material supply system 1 is viewed from the front side (+ Y-axis direction side), the direction from the right side to the left side is the + X-axis direction, and the opposite direction is the ⁇ X-axis direction.
- the arrangement direction of the plurality of cartridges 50 is also the X-axis direction.
- FIG. 2 is a front view of the cartridge mounting portion 42.
- FIG. 3 is a side view of the cartridge mounting portion 42.
- FIG. 4 is a diagram for explaining an ink end detection method. In FIG. 4, a rod cover described later is not shown.
- a detailed configuration of the cartridge mounting portion 42 will be described with reference to FIGS.
- the X-axis direction is also called the width direction
- the Z-axis direction is also called the height direction
- the Y-axis direction is also called the length direction.
- the cartridge mounting portion 42 has a substantially rectangular parallelepiped shape.
- the cartridge mounting portion 42 is provided in a direction crossing the apparatus-side front wall 432, a first apparatus-side side wall 434 provided in a direction crossing the apparatus-side front wall 432, and the apparatus-side front wall 432. And a second device-side side wall portion 436 facing the first device-side side wall portion 434.
- the cartridge mounting portion 42 includes a device-side front wall portion 432, a first device-side sidewall portion 434, and a third device-side sidewall portion 438 provided in a direction intersecting with the second device-side sidewall portion 436, A fourth device-side side wall portion 439 provided in a direction crossing the device-side front wall portion 432, the first device-side side wall portion 434, and the second device-side side wall portion 436 and facing the third device-side side wall portion 438.
- Each wall portion 432, 434, 436, 438, 439 defines an accommodation space 450 for receiving the cartridge 50.
- the accommodation space 450 forms four mounting chambers 450a to 450d that receive the four types of cartridges 50, respectively.
- the cartridge mounting portion 42 has an opening 440 that faces the device-side front wall 432 with the accommodation space 450 interposed therebetween (FIG. 3).
- the cartridge 50 is attached to and detached from the cartridge mounting portion 42 by passing through the opening 440.
- the direction in which the cartridge 50 is inserted into the cartridge mounting portion 42 is the ⁇ Y axis direction, and the direction in which the cartridge 50 is removed from the cartridge mounting portion 42 is the + Y axis direction.
- intersection or “intersect” means a state where two elements intersect each other and actually intersect each other, a state where one element is extended, and a state where the other element intersects each other, This means that when the elements are extended, the elements intersect each other.
- the apparatus-side front wall 432 is located on the ⁇ Y axis direction side with respect to the accommodation space 450. In the case of the present embodiment, the apparatus-side front wall 432 is erected with respect to a horizontal plane (a plane parallel to the X axis and the Y axis).
- the first apparatus-side side wall 434 is located on the + Z axis direction side with respect to the accommodation space 450. In the case of the present embodiment, the first device side wall portion 434 is horizontal.
- the second device side wall 436 is positioned on the ⁇ Z axis direction side with respect to the accommodation space 450. In the case of the present embodiment, the second device side wall portion 436 is horizontal.
- the third device side wall 438 is located on the + X axis direction side with respect to the accommodation space 450. In the case of the present embodiment, the third device side wall portion 438 is erected with respect to the horizontal plane.
- the fourth device-side side wall 439 is located on the ⁇ X axis direction side with respect to the accommodation space 450. In the case of the present embodiment, the fourth device side wall portion 439 is erected with respect to the horizontal plane.
- the apparatus-side front wall 432 is provided with a printing material supply pipe 46 and a rod 45.
- the printing material supply pipe 46 and the rod 45 are arranged in the direction of the Z axis perpendicular to the Y axis.
- the printing material supply pipe 46 is provided on the + Z direction side of the rod 45.
- the rod 45 is provided on the ⁇ Z direction side of the printing material supply pipe 46. Therefore, the direction from the rod 45 toward the printing material supply pipe 46 in the Z-axis direction is the + Z-axis direction, and the opposite direction is the ⁇ Z-axis direction.
- the printing material supply pipe 46 and the rod 45 protrude from the apparatus-side front wall 432 by the same length.
- the tip 46c of the printing material supply pipe 46 and the tip 45c on the + Y-axis direction side of the rod 45 are arranged at the same position P in the Y-axis direction.
- the device-side front wall 432 is provided with a rod cover 47 that covers the outer periphery of the rod 45 and a spring 49.
- the rod 45, the rod cover 47, and the spring 49 are collectively referred to as a rod-shaped member 48.
- the printing material supply pipe 46 is connected to the cartridge 50 in a mounted state in which the cartridge 50 is mounted on the cartridge mounting portion 42. Thereby, the ink flows to the printer 10 side through the printing material supply pipe 46.
- the printing material supply pipe 46 has a base end portion 46 a that is fixed to the apparatus-side front wall portion 432 and a front end portion 46 b that is connected to the cartridge 50.
- the printing material supply pipe 46 has a central axis Ca extending along the Y-axis direction.
- the direction from the base end portion 46a toward the tip end portion 46b is the + Y-axis direction
- the opposite direction is the ⁇ Y-axis direction.
- the rod 45 is used for detecting the ink end of the cartridge 50.
- the rod 45 has an axis Cb extending in the Y-axis direction.
- the rod 45 is configured to be movable along the axis Cb direction (Y-axis direction). Then, by detecting the displacement of the rod 45 in the Y-axis direction with a sensor, the position in the Y-axis direction when the cartridge 50 has ink and the position in the Y-axis direction when the ink in the cartridge 50 runs out are changed.
- the ink end is detected by detecting the displacement.
- the ink end includes not only the case where ink is completely exhausted (state) but also the case where ink is remaining (state).
- the rod 45 is disposed through the device-side front wall 432.
- a portion disposed on the + Y-axis direction side from the device-side front wall portion 432 is a portion 45b on the + Y-axis direction side, and a portion disposed on the ⁇ Y-axis direction side from the device-side front wall portion 432. -This is called a portion 45a on the Y-axis direction side.
- the rod cover 47 is cylindrical and is disposed on the outer periphery of the rod 45.
- the spring 49 is provided between the spring receiving portion 45d provided on the portion 45b on the + Y-axis direction side of the rod 45 and the device-side front wall portion 432, and biases the rod 45 toward the + Y-axis direction.
- the spring 49 is disposed on the outer periphery of the rod 45.
- the spring 49 is covered with a rod cover 47.
- the description regarding the rod 45 after this can be replaced with the description of the rod-shaped member 48 as it is.
- the rod 45 is provided at an intermediate position between the first device-side side wall 434 and the second device-side side wall 436 in the device-side front wall 432.
- the Z-axis direction is provided at an intermediate position of a line segment connecting the inner surface of the first device-side side wall portion 434 and the inner surface of the second device-side side wall portion 436. That is, as shown in FIG. 2, the central axis Cb of the rod 45 is disposed at an intermediate position in the Z-axis direction between the first device-side side wall portion 434 and the second device-side side wall portion 436.
- the “intermediate position” does not have to be completely in the middle, and may be arranged so long as it is not biased to either one of the first and second device side wall portions 434 and 436.
- the “intermediate position” is within a range of 10% or less from the center position Vm with respect to the distance between the inner wall surfaces in the Z-axis direction of the first device-side sidewall portion 434 and the second device-side sidewall portion 436. Includes location.
- the “intermediate position” is the distance between the inner wall surfaces in the Z-axis direction of the first device-side side wall portion 434 and the second device-side side wall portion 436 so that the central axis Cb is arranged more in the middle.
- the detection mechanism 300 includes a rod 45, a light shielding unit 138, and a sensor 136.
- the sensor 136 is provided on the ⁇ Y axis direction side of the apparatus-side front wall portion 432.
- As the sensor 136 a so-called transmissive photosensor having a concave shape is used.
- the sensor 136 is provided with a light emitting portion and a light receiving portion (not shown) facing each other.
- the arrow of the broken line in a figure has shown the permeation
- the light shielding part 138 is provided at the tip of the rod 45 on the ⁇ Y axis direction side.
- the light shielding portion 138 is inserted between the light emitting portion and the light receiving portion of the sensor 136 to block light from the light emitting portion.
- the light receiving portion of the sensor 136 cannot receive the light from the light emitting portion, so that it can be detected that the position of the rod 45 has changed.
- the transmission type photosensor is used for the sensor 136 of a present Example, what is necessary is just to be able to detect the displacement of the rod 45, and it is not limited to a photosensor.
- the displacement of the rod 45 may be detected by turning on and off a mechanical switch with a detection piece having a shape like the light shielding portion 138.
- the displacement of the rod 45 may be detected by a detection mechanism other than the optical detection mechanism, for example, a mechanical detection mechanism or an electrical detection mechanism. The relationship between the detection of the displacement of the rod 45 and the ink end detection will be described later.
- the first apparatus-side side wall 434 includes a first rail 402 that extends from the + Y-axis direction side end to the ⁇ Y-axis direction side.
- the first rail 402 is a groove formed in the first device side wall portion 434.
- the second device side wall 436 includes a second rail 404 extending from the + Y axis direction end to the ⁇ Y axis direction side.
- the first rail 402 and the second rail 404 have different dimensions (widths) in the X-axis direction. In this embodiment, as shown in FIG. 2, the dimension Ta in the X-axis direction of the first rail 402 is smaller than the dimension Tb in the X-axis direction of the second rail.
- the cartridge mounting portion 42 further includes a contact mechanism 410, a device-side identification member 420, and a restriction member 406.
- the “device-side identification member 420” is also simply referred to as “identification member 420”.
- the contact mechanism 410 is provided at a corner portion where the first device side wall portion 434 and the device side front wall portion 432 intersect.
- the contact mechanism 410 includes a device-side terminal group 414 and a holding member 412 that holds the device-side terminal group 414.
- the device-side terminal group 414 has a plurality of terminals and is electrically connected to the control unit 60 (FIG. 1) of the printer 10.
- the identification member 420 is provided on the second device side wall portion 436.
- the identification member 420 is used to identify whether or not the correct type of cartridge 50 is mounted in each of the mounting chambers 450a to 450d of the accommodation space 450.
- the identification member 420 has a different shape depending on the color of ink stored in the cartridge 50 to be mounted.
- the identification member 420 is formed by at least one or more ribs 422, and the pattern determined by the number and position of the ribs 422 differs depending on the type of the cartridge 50 (ink color in this embodiment). In FIG. 2, the positions where the ribs 422 can be arranged are indicated by a lattice, and the positions where the ribs 422 are actually arranged are hatched.
- the cartridge side identification member formed by the rib provided on the cartridge 50 and the identification member 420 are fitted together. As a result, the correct type of cartridge 50 is mounted in the mounting chambers 450a to 450d. If the wrong type of cartridge 50 is inserted into each of the mounting chambers 450a to 450d, the ribs of the cartridge side identification member and the ribs 422 of the identification member 420 abut against each other, preventing the cartridge 50 from being mounted. This prevents the wrong type of cartridge 50 from being mounted in the mounting chambers 450a to 450d.
- the end 422c on the + Y-axis direction side of the identification member 420 is disposed at the same position P in the Y-axis direction as the tip 46c of the printing material supply pipe 46 and the tip 45c on the + Y-axis direction side of the rod 45.
- the regulating member 406 is in contact with the cartridge 50 and reduces the possibility that the cartridge 50 is excessively pushed into the accommodation space 450.
- the restriction member 406 is disposed on both sides of the identification member 420 in the X-axis direction.
- the restricting member 406 extends from the second device-side side wall 436 toward the first device-side side wall 434.
- FIG. 5 is an exploded perspective view of the cartridge 50.
- FIG. 6 is an external perspective view of the cartridge 50.
- FIG. 7A is a front view of the cartridge 50.
- 7B and 7C are partial cross-sectional views schematically showing a portion of the first insertion hole 53.
- FIG. 7B is a part of the 7X-7X cross section of FIG. 7A, and is a cross section of the cartridge 50 cut along a plane parallel to the X axis and the Y axis and including the central axis Ce of the first insertion hole 53.
- FIG. 7C is a part of the 7Z-7Z cross section of FIG.
- FIG. 7A is a cross section of the cartridge 50 cut along a plane parallel to the Z axis and the Y axis and including the central axis Ce of the first insertion hole 53.
- FIG. 7D is a diagram illustrating a cross section of the one end side portion 53y and the other end side portion 53t of the connection portion 53h parallel to the Z axis and the X axis.
- FIG. 8 is a schematic diagram for explaining the internal configuration of the cartridge 50.
- FIG. 9A to FIG. 9C are schematic views showing how the cartridge is mounted in the cartridge mounting portion. 9A to 9C are time series in the order of FIGS. 9A, 9B, and 9C.
- the X-axis direction is also called the width direction
- the Y-axis direction is also called the length direction
- the Z-axis direction is also called the height direction.
- the cartridge 50 includes a printing material container 70, a cartridge case 72, and a printing material supply unit 74.
- the printing material storage unit 70 stores ink therein.
- the printing material container 70 is formed by laminating a film that does not allow liquid such as ink to pass through in a bag shape.
- a printing material supply unit 74 is attached to the printing material container 70.
- the printing material supply unit 74 is integrally provided with a printing material injection port 76, a printing material detection mechanism 80, a printing material outlet pipe 78, and a printing material flow path 90.
- the printing material injection port 76 is used for injecting ink into the printing material container 70 in the manufacturing stage of the cartridge 50, and the opening is closed after manufacturing.
- the printing material detection mechanism 80 is used for ink end detection using the detection mechanism 300. The detailed configuration of the printing material detection mechanism 80 will be described later.
- the printing material flow path 90 is a flow path for distributing the ink stored in the printing material storage unit 70 to the printer 10.
- the upstream end 77 of the printing material channel 90 opens in the printing material container 70, and the downstream end 78 f opens outward.
- the downstream end 78f is also referred to as a printing material supply port 78f.
- the printing material flow path 90 has a printing material supply port 78f at one end.
- a printing material container 70 is connected to the other end of the printing material channel 90.
- the printing material channel 90 is a channel that allows the printing material container 70 to communicate with the outside.
- the downstream end including the printing material supply port 78 f is formed by a cylindrical printing material outlet tube 78.
- the printing material supply port 78f is disposed in a second insertion hole 51 described later.
- the cartridge case 72 includes a protective container 84 and a cap 82.
- the protective container 84 houses most of the printing material container 70 inside.
- the protective container 84 is a substantially rectangular parallelepiped member having an opening on the ⁇ Y axis direction side.
- the cap 82 is attached to the protective container 84 so as to close the opening 75 of the protective container 84. Further, the cap 82 is not fixed to the protective container 84 so as not to move firmly.
- the cap 82 is configured to move slightly with respect to the protective container 84 by the clearance between the cap 82 and the protective container 84.
- the external appearance of the cartridge 50 is a substantially rectangular parallelepiped shape.
- the size of the cartridge 50 decreases in the order of the length direction (Y-axis direction), the height direction (Z-axis direction), and the width direction (X-axis direction).
- the cartridge 50 includes six surfaces 532, 534, 536, 538, 539, and 540 that form the outer surface.
- the cartridge 50 includes a front surface 532, a rear surface 540, a first side surface 534, a second side surface 536, a third side surface 538, and a fourth side surface 539.
- Each surface 532, 534, 536, 538, 539, 540 is substantially planar.
- the front surface 532 and parts of the side surfaces 534, 536, 538, and 539 on the ⁇ Y-axis direction side are constituted by a cap 82.
- a part of the rear surface 540 and the side surfaces 534, 536, 538, and 539 on the + Y-axis direction side is constituted by a protective container 84.
- the portions constituted by the cap 82 are referred to as first to fourth side surfaces of the cap 82, respectively.
- the portion constituted by the protective container 84 is referred to as the first to fourth side surfaces of the protective container 84, respectively.
- the surfaces 532, 534, 536, 538, 539, and 540 need not be perfect planes.
- the peripheral edge of the opening end of the first insertion hole 53 or the second insertion hole 51 provided in the front surface 532 may be slightly protruded from the front surface 532 so as to border the periphery of the hole.
- the front surface 532 and the rear surface 540 face each other in the Y-axis direction.
- the front surface 532 is located on the ⁇ Y axis direction side
- the rear surface 540 is located on the + Y axis direction side.
- the front surface 532 is located on the ⁇ Y axis direction side with respect to the printing material container 70.
- the front surface 532 faces the device-side front wall 432.
- the rear surface 540 is located on the + Y axis direction side with respect to the printing material accommodation unit 70.
- the rear surface 540 faces the front surface 532.
- the first side surface 534 is located on the + Z axis direction side with respect to the printing material accommodation unit 70.
- the first side surface 534 and the second side surface 540 intersect the front surface 532 and the rear surface 540.
- the first side surface 534 and the second side surface 540 face each other in the Z-axis direction.
- the first side surface 534 is located on the + Z axis direction side
- the second side surface 540 is located on the ⁇ Z axis direction side.
- the first side surface 534 is located on the + Z axis direction side with respect to the printing material accommodation unit 70.
- the second side surface 536 is located on the ⁇ Z-axis direction side with respect to the printing material container 70.
- the second side surface 536 faces the first side surface 534.
- the third side surface 538 and the fourth side surface 539 intersect the front surface 532, the rear surface 540, the first side surface 534, and the second side surface 540.
- the third side surface 538 and the fourth side surface 539 face each other in the X-axis direction.
- the third side surface 538 is located on the + X axis direction side
- the fourth side surface 539 is located on the ⁇ X axis direction side.
- the third side surface 538 is located on the + X axis direction side with respect to the printing material accommodation unit 70.
- the fourth side surface 539 is located on the ⁇ X axis direction side with respect to the printing material container 70.
- the fourth side surface 539 faces the third side surface 538.
- the front surface 532 formed by the cap 82 has a second insertion hole 51 into which the printing material supply pipe 46 is inserted and a first insertion hole 53 into which the rod 45 is inserted in the mounted state. Is formed.
- the second insertion hole 51 has a predetermined length in the Y-axis direction.
- the printing material supply pipe 46 (FIG. 3) is inserted into the second insertion hole 51.
- the printing material supply pipe 46 is connected to the printing material outlet pipe 78, and the ink in the printing material container 70 is supplied to the head 22 through the printing material supply pipe 46 and the tube 24.
- the state in which the printing material supply pipe 46 is connected to the printing material outlet pipe 78 means a state in which ink can flow from the printing material outlet pipe 78 to the printing material supply pipe 46.
- the first insertion hole 53 is provided at an intermediate position between the first side surface 534 and the second side surface 536 in the front surface 532. In other words, it is provided at an intermediate position connecting the first side surface 534 and the second side surface 536 in the Z-axis direction. That is, the central axis Ce of the first insertion hole 53 is disposed at an intermediate position in the Z-axis direction between the first side surface 534 and the second side surface 536.
- the “intermediate position” does not have to be completely in the middle, and may be arranged as long as it is not biased to either the first side surface 534 or the second side surface 536.
- the “intermediate position” includes a position where 0.4 ⁇ Th ⁇ Tha ⁇ ⁇ 0.6 ⁇ Th or 0.6 ⁇ Th ⁇ Thb ⁇ 0.4 ⁇ Th.
- the first insertion hole 53 does not appear to be biased to either the first side surface 534 or the second side surface 536 at a glance.
- the “intermediate position” is within 7.5% of the center position Vh with respect to the distance in the Z-axis direction between the first side surface 534 and the second side surface 536 so that the central axis Ce is arranged more in the middle. It is preferable that the position within the range is included.
- the first insertion hole 53 has a predetermined length in the Y-axis direction.
- the first insertion hole 53 has an opening end 53f on the ⁇ Y axis direction side and an opening end 53g on the + Y axis direction side.
- the first insertion hole 53 has an end portion 53y located on the ⁇ Y axis direction side and an other end portion 53t located on the + Y axis direction side with respect to the one end portion 53y. With the connection portion 53h as a boundary, the one end side portion 53y is located on the ⁇ Y axis direction side, and the other end side portion 53t is located on the + Y axis direction side.
- the one end side portion 53y includes an opening end 53f on the ⁇ Y axis direction side.
- the other end portion 53t includes an opening end 53g on the + Y axis direction side. That is, the part from the connection part 53h to the opening end 53f on the ⁇ Y axis direction side is the one end part 53y, and the part from the connection part 53h to the opening end 53g on the + Y axis direction side is the other end part 53g.
- the one end side portion 53y has a circular cross-sectional shape parallel to the X axis and the Z axis. The diameter of this circle decreases from the opening end 53f toward the + Y-axis direction. Further, as shown in FIG.
- the cross section parallel to the X axis and the Y axis and the cross section parallel to the Z axis and the Y axis of the one end side portion 53y are the sides on the ⁇ Y axis direction side formed by the opening end 53f. Is a trapezoid having a long side and a short side on the + Y-axis direction side formed by the connecting portion 53h. That is, the one end side portion 53y is a truncated cone. The other end side portion 53t is not a circle in cross section parallel to the X axis and the Z axis. As shown in FIGS.
- the cross section of the other end side portion 53t parallel to the X axis and the Z axis is a pair of straight lines 53p and 53p that face each other in the Z axis direction, and two that face each other in the X axis direction.
- the shape is formed by a combination with the arcs 53q and 53q.
- the shape of this cross section is the same from the connecting portion 53h to the opening end 53g on the + Y-axis direction side. That is, the other end side portion 53t is columnar. As shown in FIGS.
- the cross section of the other end side portion 53y parallel to the X axis and the Y axis and the cross section parallel to the Z axis and the Y axis are both rectangular.
- the area of the rectangle having a cross section parallel to the X axis and the Y axis shown in FIG. 7B is smaller than the area of the rectangle having a cross section parallel to the Z axis and the Y axis shown in FIG. 7C.
- the area of the opening end 53g in the + Y axis direction is smaller than the area of the opening end 53f in the ⁇ Y axis direction.
- this cross section is a circle in the one end side portion 53y.
- the area of this circle gradually decreases from the opening end 53f on the ⁇ Y axis direction side toward the connection portion 53h.
- the shape of the cross section changes to a shape formed by a combination of a pair of straight lines 53p, 53p and a pair of arcs 53q, 53q at the connection portion 53h, that is, the entrance of the other end portion 53t.
- the distance between the pair of straight lines 53p, 53p is smaller than the diameter of the circle constituting the cross section of the one end side portion 53y, and therefore the dimension in the Z-axis direction becomes small.
- the diameter of the pair of arcs 53q, 53q is the same as the diameter of the circle constituting the cross section of the one end side portion 53y, and therefore the dimension in the X-axis direction does not change.
- the shape and area of the cross section do not change from the connecting portion 53h to the opening end 53g on the + Y axis direction side.
- the rod 45 is inserted into the first insertion hole 53 from the ⁇ Y axis direction side toward the + Y axis direction.
- the opening end 53f on the ⁇ Y-axis direction side serving as the entrance is wide, the rod 45 can be easily received.
- the opening end 53g on the + Y axis direction side is narrow, the cartridge 50 can be accurately positioned by inserting the rod 45 up to the opening end 53g in the + Y axis direction.
- the cross-sectional area gradually decreases from the opening end 53f on the ⁇ Y axis direction side toward the connection portion 53h. Then, the shape of the cross section changes at the connection portion 53h, that is, the inlet of the other end side portion 53t, and only the dimension in the Z-axis direction becomes small.
- the dimension in the X-axis direction is the same as that of the one end side portion 53y. From the connecting portion 53h to the opening end 53g on the + Y axis direction side, the shape and area of the cross section do not change. Therefore, the rod 45 can be smoothly guided from the one end side portion 53y to the other end side portion 53t. In the other end portion 53t, in the X-axis direction, a gap is provided between the rod 45 and the first insertion hole 53 so that the rod can be smoothly guided to the opening end 53g on the + Y-axis direction side. In the Z-axis direction, the position of the rod 45 is stabilized, and the cartridge can be accurately positioned with respect to the cartridge mounting portion.
- the cartridge 50 further includes a cartridge-side identification member 520 (also simply referred to as “identification member 520”) in the cap 82.
- the identification member 520 is disposed at the concave corner portion 55 where the front surface 532 and the second side surface 536 intersect. Similar to the apparatus-side identification member 420, the identification member 520 is formed by at least one or more ribs 522. Further, the identification member 520 forms a different pattern depending on the ink color stored in the cartridge 50. Specifically, as shown in FIG. 7A, the concave portion provided in the corner portion 55 is divided into eight areas (in FIG. 7A, this area is shown in a lattice shape), and some of them are The rib 522 is arrange
- the area where the rib 522 is disposed varies depending on the ink color.
- FIG. 7A as an example of the rib arrangement pattern, the positions where the ribs 522 are arranged are hatched. 5 and 6, the identification member 520 is not shown.
- the end on the ⁇ Y-axis direction side of the cartridge-side identification member 520 is also referred to as “tip surface 520f”.
- the portion of the rod 45 disposed on the ⁇ Y axis direction side of the device-side front wall portion 432 (the portion 45a on the ⁇ Y axis direction side in FIG. 3) is omitted.
- the cartridge 50 is configured such that the rod 45 is inserted into the first insertion hole 53 before the printing material supply pipe 46 is inserted into the printing material supply port 78f. ing.
- the opening end 53f of the first insertion hole 53 is provided on the ⁇ Y axis direction side of the printing material supply port 78f.
- the rod 45 is first inserted into the first insertion hole 53.
- the cartridge 50 is mounted in the cartridge mounting portion 42, after the rod 45 is inserted into the first insertion hole 53 and before the printing material supply pipe 46 is inserted into the printing material supply port 78f.
- the cartridge 50 is configured so that the engagement between the cartridge side identification member 520 and the apparatus side identification member 420 is started.
- the front end surface 520f is provided on the + Y-axis direction side of the opening end 53f on the ⁇ Y-axis direction side of the first insertion hole 53, and the printing material supply port It is provided on the ⁇ Y axis direction side relative to 78f.
- 9A the rod 45 is first inserted into the first insertion hole 53.
- FIG. 9A the rod 45 is first inserted into the first insertion hole 53.
- the cartridge 50 comes into contact with the regulating member 406 (FIG. 2), and the cartridge 50 further moves in the ⁇ Y axis direction side. To prevent.
- the restricting member 406 contacts the surface (front surface 532) of the cartridge 50 that faces the ⁇ Y-axis direction (FIG. 9C).
- the cartridge 50 further includes a circuit board 200 on the cap 82.
- the circuit board 200 is disposed at the corner portion 52 where the front surface 532 and the first side surface 534 intersect.
- the circuit board 200 includes a cartridge-side terminal group 202 having a plurality of terminals provided on the front surface, and a storage device 204 provided on the back surface.
- the storage device 204 stores information about the cartridge 50 (for example, ink color).
- each terminal of the cartridge side terminal group 202 comes into contact with a corresponding terminal of the apparatus side terminal group 414.
- signals are exchanged between the circuit board 200 and the control unit 60 (FIG. 1).
- the first side surface 534 includes a first side surface 534a of the cap and a first side surface 534b of the protective container.
- a first cartridge projection 56 is provided on the first side surface 534.
- the first cartridge protrusion 56 protrudes from the first side surface 534 in the + Z-axis direction. Further, the first cartridge convex portion 56 extends in the Y-axis direction.
- the first cartridge convex portion 56 includes a first convex portion 56 a provided on the first side surface 534 a of the cap 82 and a first container side convex portion 56 b provided on the first side surface 534 b of the protective container 84. Is done.
- the first protrusion 56a protrudes from the first side surface 534a of the cap 82 in the + Z direction.
- the first container side convex portion 56 b protrudes from the first side surface 534 b of the protective container 84 in the + Z-axis direction. Further, the first container-side convex portion 56b extends in the Y-axis direction.
- the first cartridge convex portion 56 (56a, 56b) is provided when the cartridge 50 is inserted into the cartridge mounting portion 42 (see FIGS. 2 and 3) and when the cartridge 50 is removed from the cartridge mounting portion 42. Guided by rails 402 (see FIGS. 2 and 3).
- the second side surface 536 includes a second side surface 536a of the cap and a second side surface 536b of the protective container.
- a second cartridge convex portion 58 is provided on the second side surface 536.
- the second cartridge protrusion 58 protrudes from the second side surface 536 in the ⁇ Z axis direction. Further, the second cartridge convex portion 58 extends in the Y-axis direction.
- the second cartridge convex portion 58 includes a second convex portion 58 a provided on the second side surface 536 a of the cap 82 and a second container side convex portion 58 b provided on the second side surface 536 b of the protective container 84. Is done.
- the second convex portion 58a protrudes from the second side surface 536a of the cap 82 in the ⁇ Z direction.
- the second container side convex portion 58 b protrudes from the second side surface 538 b of the protective container 84 in the ⁇ Z axis direction.
- the first container-side convex portion 56b extends in the Y-axis direction.
- the second cartridge convex portion 58 (58a, 58b) is provided when the cartridge 50 is inserted into the cartridge mounting portion 42 (see FIGS. 2 and 3) and when the cartridge 50 is removed from the cartridge mounting portion 42. Guided by rails 404 (see FIGS. 2 and 3).
- the dimension Tc in the X-axis direction of the first cartridge protrusion 56 (56a, 56b) and the dimension Td in the X-axis direction of the second cartridge protrusion 58 (58a, 58b) are different.
- the dimension Td in the Z-axis direction of the second cartridge convex portion 58 (58a, 58b) is larger than the dimension Tc in the X-axis direction of the first cartridge convex portion 56 (56a, 56b).
- the dimension Tb in the X-axis direction of the second rail 404 of the cartridge mounting portion 42 for guiding the second cartridge convex portion 58 (58a, 58b) is the first cartridge.
- the dimension Ta in the Z-axis direction of the first rail 410 corresponds to the dimension Tc in the X-axis direction of the first cartridge convex portion 56 (56a, 56b), and the dimension in the X-axis direction of the second rail 404.
- Tb corresponds to the dimension Td in the X-axis direction of the second cartridge convex portion 58 (58a, 58b).
- the dimension Td in the X-axis direction of the second cartridge convex portion 58 (58a, 58b) is smaller than the dimension Tb in the X-axis direction of the second rail 404 and is smaller than the dimension Ta (56a, 56b) of the first rail 402. large.
- the dimension Tc in the X-axis direction of the first cartridge convex portion 56 (56a, 56b) is smaller than the dimension Ta in the X-axis direction of the first rail 402. That is, the relationship is Tc ⁇ Ta ⁇ Td ⁇ Tb.
- the second cartridge convex portion 58 specifically, the second convex portion 58a provided on the second side surface 536a of the cap 82 is provided. Since the cartridge 50 cannot be inserted into the first rail 402, it is possible to prevent the cartridge 50 from being mounted on the cartridge mounting portion 42.
- the first convex portion 56a and the first container-side convex portion 56b are arranged with a space portion 56c in the Y-axis direction.
- the 2nd convex part 58a and the 2nd container side convex part 58b provide the space part 58c in the Y-axis direction, and are arrange
- a leaf spring Sp provided in the cartridge mounting portion 42 enters the spaces 56c and 58c, and the cartridge 50 is urged toward the apparatus-side front wall 432 by the leaf spring Sp. Is done.
- the first cartridge convex portion 56 specifically, the first container-side convex portion 56b is shaped to continuously extend in the Y-axis direction.
- the second cartridge convex portion 58 specifically, the second container-side convex portion 58b is shaped so as to continuously extend in the Y-axis direction.
- the first convex portion 56a and the second convex portion provided at the front end portion in the ⁇ Y-axis direction Even 58a alone is possible.
- a certain amount of space in the Y-axis direction is provided at least at two locations on the first side surface 534 and at least two locations on the second side surface 536. It is only necessary that the protrusions are provided, and it is not essential that the protrusions extend in the Y-axis direction.
- FIG. 10 is an exploded perspective view showing the configuration of the printing material supply unit 74.
- the printing material detection mechanism 80 includes a detection chamber 100 having a substantially cylindrical shape.
- the detection chamber 100 is provided in the middle of the printing material flow path 90 (FIG. 8).
- an inflow port 102 into which ink in the printing material container 70 flows and an outflow port 104 through which ink flows out toward the printing material supply port 78f are opened.
- the detection chamber 100 is covered at its upper end surface with a film 118 formed of a flexible material.
- the volume of the detection chamber 100 changes as the film 118 is deformed in accordance with a change in internal pressure.
- the printing material detection mechanism 80 is further provided with a check valve 106 and a spring 108.
- the check valve 106 and the spring 108 are disposed in the detection chamber 100.
- the check valve 106 prevents the ink flowing from the inlet 102 into the detection chamber 100 from flowing backward.
- the spring 108 biases the film 118 toward the outside of the detection chamber 100.
- the spring 108 is disposed in the detection chamber 100 in a compressed state.
- the spring 108 is positioned by being fitted to a protrusion 110 erected upward from the bottom surface of the detection chamber 100.
- a pressure receiving plate 112 is inserted between the spring 108 and the film 118.
- the pressure receiving plate 112 is integrally formed by connecting a pressure receiving portion 114 that transmits the urging force of the spring 108 to the film 118 and a restriction portion 116 that restricts the movement of the check valve 106.
- a pressure receiving portion 114 that transmits the urging force of the spring 108 to the film 118
- a restriction portion 116 that restricts the movement of the check valve 106.
- the printing material detection mechanism 80 further includes a lever member 120.
- the lever member 120 is in contact with the film 118 constituting the one end surface (the upper end surface in the drawing) of the detection chamber 100 from the outside of the detection chamber 100.
- the lever member 120 is provided with a shaft hole 122 on one end side.
- the shaft hole 122 is fitted to the shaft pin 126 provided on the outer surface of the detection chamber 100, the lever member 120 is pivotally supported by the shaft pin 126 so as to be rotatable.
- a guide hole 124 is provided on the other end side of the lever member 120, and a guide pin 128 fixed to the printing material supply unit 74 is inserted into the guide hole 124 to rotate the lever member 120. Is to guide you.
- the contact portion with which the tip 45c of the rod 45 on the cartridge mounting portion 42 side contacts the upper surface of the lever member 120 (the surface opposite to the surface in contact with the film 118).
- the convex part 132 is provided.
- the convex portion 132 and the first insertion hole 53 are in a relationship of overlapping at least partially.
- the ink in the printing material storage unit 70 is supplied to the cartridge mounting unit 42 as follows.
- FIG. 11 is a first cross-sectional view showing a state in which the ink in the printing material storage unit 70 is supplied to the cartridge mounting unit 42.
- FIG. 12 is a second cross-sectional view showing how the ink in the printing material storage unit 70 is supplied to the cartridge mounting unit 42.
- 11 and 12 the illustration of the lever member 120, the regulating portion 116 of the pressure receiving plate 112, and the like is omitted for easy understanding.
- a supply pump (not shown) is built in the cartridge mounting portion 42, and sucks ink from the cartridge 50 side and pumps the ink toward the carriage 20.
- FIG. 11 shows a state when the supply pump of the cartridge mounting part 42 is not operating
- FIG. 12 shows a state when the supply pump of the cartridge mounting part 42 is operating. Yes.
- the spring 108 pushes out the film 118 so as to increase the volume of the detection chamber 100.
- ink flows into the detection chamber 100 through the inflow passage 140 that connects the printing material container 70 and the inflow port 102.
- a check valve 106 is provided at the inflow port 102 to allow ink to flow into the detection chamber 100 and prevent backflow.
- the arrow of the broken line in a figure represents the flow of ink.
- the inner diameter of the outflow passage 142 is set to be larger than the inner diameter of the inflow passage 140, so that the ink flowing into the detection chamber 100 with respect to the outflow of ink from the detection chamber 100.
- the inflow cannot catch up, and the detection chamber 100 has a negative pressure. Therefore, as shown in FIG. 12, the film 118 is deformed so as to be drawn inside the detection chamber 100 against the force of the spring 108.
- the negative pressure generated in the detection chamber 100 is gradually eliminated by the ink in the printing material container 70 flowing into the detection chamber 100 through the inflow passage 140. Then, the film 118 is pushed out of the detection chamber 100 again by the force of the spring 108, and the volume of the detection chamber 100 is restored. As a result, after a predetermined time has elapsed since the supply pump of the cartridge mounting portion 42 was stopped, the state shown in FIG. 11 is restored. When the supply pump of the cartridge mounting portion 42 is activated again, the pressure in the detection chamber 100 becomes negative, and the film 118 is drawn into the detection chamber 100 as shown in FIG.
- the ink in the printing material container 70 When the ink in the printing material container 70 is consumed and disappears, the ink does not flow into the detection chamber 100 from the printing material container 70 even if the detection chamber 100 has a negative pressure. That is, even after a predetermined time has elapsed after the supply pump of the cartridge mounting portion 42 has stopped, the negative pressure in the detection chamber 100 is not eliminated, and the film 118 remains inside the detection chamber 100 as shown in FIG. Will remain in the state of being drawn into.
- the film 118 that constitutes one end surface of the detection chamber 100 remains deformed so as to be drawn into the detection chamber 100. That is, by detecting the displacement of the film 118 using the detection mechanism 300 (see FIG. 4), it is possible to detect that the ink in the printing material storage unit 70 has run out. However, since the displacement amount of the film 118 of this embodiment is small, the displacement amount is amplified using the following lever member 120.
- FIG. 13 is an explanatory view showing the configuration of the lever member 120 provided in the cartridge 50 of the present embodiment.
- a shaft hole 122 is provided on one end side of the lever member 120.
- the lever member 120 is rotatable around the shaft hole 122 in a state where the shaft pin 126 (FIG. 10) provided on the outer surface of the detection chamber 100 is fitted in the shaft hole 122.
- a guide hole 124 is provided on the other end side of the lever member 120, and a guide pin 128 (FIG. 10) fixed to the printing material supply unit 74 is inserted into the guide hole 124.
- the guide pin 128 moves along the guide hole 124 to guide the rotation operation of the lever member 120, so that the rotation of the lever member 120 is regulated with high accuracy. be able to.
- a hemispherical convex portion 130 that contacts the film 118 is provided on the surface of the lever member 120 facing the film 118, and the surface of the lever member 120 opposite to the side facing the film 118 is provided on the surface opposite to the film 118.
- a contact portion 132 is provided as a convex portion with which the tip 45c (see FIGS. 3 and 4) of the rod 45 provided on the cartridge mounting portion 42 side contacts.
- a distance D2 from the shaft hole 122 serving as a fulcrum of the lever member 120 to the contact portion 132 is set to be larger than a distance D1 from the shaft hole 122 to the convex portion 130.
- the displacement amount of the film 118 amplified by the lever member 120 is transmitted to the rod 45 provided inside the cartridge mounting portion 42 as described above.
- the displacement amount of the film 118 is amplified, and the amplified displacement amount becomes the movement distance of the rod 45. Therefore, it is required that the rod 45 abuts on the lever member 120 at an accurate designed position so that the detection of the ink end using the detection mechanism 300 is performed correctly.
- FIG. 14 is a first diagram for explaining the detection of the ink end, and shows a state in which the cartridge 50 is not mounted, particularly a state before the cartridge 50 in which sufficient ink remains is mounted.
- FIG. 15 is a second diagram for explaining the detection of the ink end, and shows a state when the cartridge 50 in a state where a sufficient amount of ink remains is mounted on the cartridge mounting portion 42.
- FIG. 16 is a third diagram for explaining the detection of the ink end, and is a state when the ink in the ink cartridge 50 mounted on the cartridge mounting portion 42 runs out or when the ink is low (at the time of ink end). Is shown.
- the spring 49 urges the rod 45 toward the cartridge 50.
- the rod 45 is moved toward the cartridge 50 by the force of the spring 49. Therefore, the light shielding part 138 of the rod 45 is inserted between the light emitting part and the light receiving part of the sensor 136, and the light from the light emitting part is blocked.
- This state is the same as the ink end state described later with reference to FIG.
- the printer 10 is controlled so that printing is impossible in this state.
- the cartridge 50 is mounted on the cartridge mounting portion 42, the cartridge 50 is inserted in the direction of the arrow in the drawing, that is, in the ⁇ Y axis direction.
- the cartridge 50 shown in FIG. 14 is in a state where a sufficient amount of ink remains.
- the tip 45c of the rod 45 is brought into contact with the contact portion 132 of the lever member 120 provided on the cartridge 50 side. Abut.
- the biasing force A ′ applied to the contact portion 132 of the lever member 120 by the biasing force A of the spring 108 of the cartridge 50 is set to be larger than the biasing force B of the spring 49.
- the sensor 136 is in a state of transmitting light. As described above, the sensor 136 can detect that the cartridge 50 is mounted on the cartridge mounting portion 42 based on the change from the light blocking state to the transmitting state due to the movement of the light blocking portion 138 of the rod 45. It is. This state is maintained until the ink in the printing material container 70 is exhausted or the remaining ink is reduced. In this state, the printer 10 is controlled to enable printing as long as there is no other abnormality in the cartridge 50 or the printer 10. In addition, since the technique regarding the type of “other abnormality” and its detection method is well known, the description is omitted here.
- the ink in the printing material container 70 runs out (or decreases)
- the ink does not flow from the printing material container 70 into the detection chamber 100, and a negative pressure is applied to the detection chamber 100.
- the urging force A of the spring 108 of the cartridge 50 is set to be smaller than the force C caused by the negative pressure generated when the printing material storage unit 70 runs out of ink (or when the remaining amount decreases). Therefore, the film C remains in the state of being pulled inside the detection chamber 100 by this force C.
- the rod 45 is displaced in the + Y-axis direction by the biasing force B of the spring 49.
- the rod 45 rotates the lever member 120 following the deformation of the film 118, and the lever member 120 is held in a closed state.
- the rod 45 moves to the cartridge 50 side, and the light shielding portion 138 of the rod 45 is inserted between the light emitting portion and the light receiving portion of the sensor 136.
- the sensor 136 Based on the fact that the light is blocked by the light blocking portion 138 of the rod 45 (the rod 45 has moved), the sensor 136 has run out of ink in the printing material container 70 or has run out of ink (ink end). Is detected.
- the printer 10 is controlled so that printing is impossible in this state.
- the cartridge 50 of this embodiment is not provided with a piezoelectric detection mechanism for detecting the ink end.
- electric conduction means wiring, electrode terminals, etc.
- the cartridge 50 can be reduced in size.
- the printing apparatus to which the cartridge is mounted can be reduced in size.
- the manufacturing cost of the cartridge 50 can be suppressed. Further, by suppressing the manufacturing cost of the replaceable cartridge 50 that is manufactured in large quantities compared to the printer 10, the manufacturing cost of the entire printing material supply system 1 can also be suppressed.
- the first insertion hole 53 into which the rod 45 is inserted is provided in the middle of the front surface 532 between the first side surface 534 and the second side surface 536 (FIG. 7). That is, the rod 45 used for detecting the end of the printing material is inserted into the first insertion hole 53, whereby the cartridge 50 is positioned with respect to the cartridge mounting portion 42 at an intermediate position in the longitudinal direction of the front surface 532 of the cartridge. . Thereby, the position shift of the cartridge 50 with respect to the rod 45 can be suppressed, and the detection of the ink end by the detection mechanism 300 can be accurately performed.
- the front surface 532 of the cartridge 50 is larger in the Z-axis direction than in the X-axis direction. Therefore, when the first insertion hole 53 is provided to be biased to one of the first side surface 534 and the second side surface 536, it may be difficult to accurately position the cartridge 50. For example, when the first insertion hole 53 is provided so as to be biased toward the first side surface 534, the rod 45 is inserted into the first insertion hole 53, thereby causing wobble or rattling on the first side surface 534 side. Although it can be suppressed, the wobbling and rattling on the second side surface 534 side away from the first insertion hole 53 cannot be suppressed, and the degree thereof increases.
- the 2nd side 534 side may shift from the mounting position which should be originally located.
- the first insertion hole 53 is provided at an intermediate position between the first side surface 534 and the second side surface 536, the first side surface 534 side and the second side surface 536 side are wobbled. It is possible to make the same level and to make it smaller. Therefore, the cartridge 50 can be accurately and efficiently positioned with respect to the cartridge mounting portion 42.
- the rod 45 used for detecting the ink end also serves as a member for positioning the cartridge 50 with respect to the cartridge mounting portion 42. Therefore, the printing material supply system 1 does not need to newly include a positioning member. Thereby, the number of parts of the printing material supply system 1 can be reduced. In addition, since the cartridge 50 is positioned with respect to the cartridge mounting portion 42 using the rod 45 used for detecting the end of the ink, there is no need to provide a separate positioning member, and the number of parts can be reduced. it can. In addition, the printing apparatus 10 to which the cartridge 50 is mounted can be downsized.
- the rod cover 47 is also inserted into the first insertion hole 53. Accordingly, the rod 45 can be prevented from coming into contact with the wall forming the first insertion hole 53, so that the rod 45 can be smoothly moved in accordance with the change in the volume of the detection chamber 100. As a result, the ink end can be detected more accurately.
- the cartridge case 72 includes a cap 82 and a protective container 84.
- the protective material 84 accommodates the printing material accommodation unit 70.
- the cap 82 is provided with a second insertion hole 51 and a first insertion hole 53 into which a member provided in the cartridge mounting portion 42 is inserted.
- the protective container 84 side is heavier as a whole than the cap 82 side.
- the protective container 84 for storing the liquid storage unit 70, the cap 82, and the protective container 84 are separate members, the protective container 84 is capped by the clearance between the cap 82 and the protective container 84. It can be configured to be slightly movable with respect to 82. Even if the weight of the printing material container 70 is large, only the portion of the protective container 84 is inclined, and the cap 82 can be maintained in a correct posture without being inclined. Thereby, in the mounting state, the possibility that the positions of the second insertion holes 51 and the first insertion holes 53 provided in the cap 82 with respect to the cartridge mounting portion 42 are shifted from the designed correct positions can be reduced.
- the cartridge-side terminal group 202 is provided on the cap 82 that reduces the possibility of being displaced from the correct position. Thereby, the electrical connection between the cartridge side terminal group 202 and the apparatus side terminal group 414 in the mounted state can be stably achieved.
- the first side surface 534a of the cap 82 is provided with a first convex portion 56a protruding in the + Z direction, and the second side surface 536 of the cap has ⁇ Z A second convex portion 58a protruding in the direction is provided.
- the first convex portion 56a is provided on the first apparatus-side side wall portion 434 when the cartridge 50 is inserted into the cartridge mounting portion 42 (see FIGS. 2 and 3) and when the cartridge 50 is removed from the cartridge mounting portion 42. It is guided by the first rail 402 (see FIGS. 2 and 3).
- the second convex portion 58a is provided on the second device side wall portion 436 when the cartridge 50 is inserted into the cartridge mounting portion 42 (see FIGS. 2 and 3) and when the cartridge 50 is removed from the cartridge mounting portion 42. It is guided by the second rail 404 (see FIGS. 2 and 3). And the dimension Tc of the X-axis direction of the 1st convex part 56a differs from the dimension Td of the X-axis direction of the 2nd convex part 58a.
- the dimension Ta in the X-axis direction of the first rail 402 is made to correspond to the dimension Tc in the X-axis direction of the first convex part
- the dimension Tb in the X-axis direction of the second rail 404 is made equal to the X-axis direction of the second convex part. Therefore, it is possible to prevent the cartridge 50 from being mounted in an erroneous state in which the positions of the first side surface 534 and the second side surface 536 of the cartridge 50 are reversed.
- the opening end 53f on the ⁇ Y-axis direction side of the first insertion hole 53 is located at a position where the rod 45 is inserted before the printing material supply pipe 46 is inserted into the printing material supply port 78f. (FIGS. 8 and 9A). Therefore, after the cartridge 50 is guided to the correct position in the cartridge mounting portion 42 by the rod 45, the printing material supply pipe 46 and the printing material supply port 78f are connected. Therefore, it is possible to prevent the printing material supply pipe 46 from being damaged when the tip 46c (FIG. 3) of the printing material supply pipe 46 collides with a position different from the printing material supply port 78f of the cartridge 50. Further, since the positional deviation between the central axis Ca (see FIG.
- the opening end 53f of the first insertion hole 53 has a tip 46c of the printing material supply port printing material supply pipe 46 and a tip 45c of the rod 45 on the + Y-axis direction side as Y. At the same position P in the axial direction.
- the present embodiment as shown in FIG.
- the opening end 53f of the first insertion hole 53 is provided on the ⁇ Y-axis direction side with respect to the printing material supply port 78f. Can be achieved. That is, before the printing material supply pipe 46 is inserted into the printing material supply port 78f, the rod 45 is first inserted into the first insertion hole 53, and the cartridge 50 can be positioned.
- the cartridge 50 of this embodiment includes a cartridge-side identification member 520 for identifying the type of cartridge depending on whether or not it can be fitted into the apparatus-side identification unit 420.
- the identification members 520 and 420 hit each other, and further insertion can be hindered. Therefore, the possibility that the wrong type of cartridge 50 is connected to the printing material supply pipe 46 can be reduced. As a result, the possibility that ink of a color different from the original color will circulate in the printing material supply pipe 46 can be reduced. Further, as shown in FIGS.
- the + Y-axis direction end 422c of the apparatus-side identification member 420 is at the same position P in the Y-axis direction.
- the front end surface 520f of the cartridge-side identification member 520 is provided on the + Y axis direction side with respect to the opening end 53f of the first insertion hole 53, and ⁇ Y than the printing material supply port 78f. Since it is provided on the axial direction side, the mounting mode can be easily achieved.
- the cartridge side identification member 520, the apparatus side identification member 420, can begin to fit.
- the cartridge-side identification member 520 and the apparatus-side identification member 420 can be formed with a simple configuration in which ribs 522 and 422 are used.
- the first insertion hole 53 has a predetermined length in the Y-axis direction, and the area of the opening end 53f on the ⁇ Y-axis direction side is + Y-axis. It is smaller than the area of the opening end 53g on the direction side. That is, the opening end 53f on the ⁇ Y-axis direction side that first receives the rod 45 is wider than the opening end 53g on the + Y-axis direction side that is the other opening end. Therefore, the cartridge 50 can be positioned with higher accuracy by inserting the rod 45 to the opening end 53g on the + Y-axis direction side while making the rod 45 easily received in the first insertion hole 53.
- the first insertion hole 53 includes an end portion 53y extending from the connecting portion 53h to the opening end 53f on the ⁇ Y axis direction side, and a connecting portion 53b. And the other end portion 53t reaching the opening end 53g on the + Y-axis direction side.
- the one end side portion 53y is a truncated cone whose cross section parallel to the X axis and the Z axis is a circle. As shown in FIGS.
- the other end portion 53t has a cross section parallel to the X axis and the Z axis facing a pair of straight lines 53p and 53p facing in the Z axis direction in the X axis direction. It is a column shape which is a shape formed by a combination of two arcs 53q and 53q.
- the distance between the pair of straight lines 53p and 53p constituting the cross section of the other end side portion 53t is smaller than the diameter of the circle constituting the cross section of the one end side portion 53y.
- the diameter of the pair of arcs 53q and 53q constituting the cross section of the other end side portion 53t is the same as the diameter of the pair of arcs that exercise the cross section of the one end side portion 53y.
- the cross-sectional area gradually decreases from the opening end 53f on the ⁇ Y axis direction side toward the connection portion 53h.
- the shape of the cross section changes at the connection portion 53h, that is, the inlet of the other end side portion 53g, and only the dimension in the Z-axis direction becomes small.
- the dimension in the X-axis direction does not change.
- the rod 45 can be smoothly guided from the one end side portion 53y to the other end side portion 53t.
- a gap is provided between the rod 45 and the first insertion hole 53 so that the rod 45 can be smoothly guided to the opening end 53g on the + Y-axis direction side.
- the position of the rod 45 is stabilized, and the cartridge 50 can be accurately positioned with respect to the cartridge mounting portion 42.
- the positioning of the cartridge 50 with respect to the cartridge mounting portion 42 in the X-axis direction is performed by the second cartridge convex portion 58 entering the second rail 404. Further, the positioning of the cartridge 50 with respect to the cartridge mounting portion 42 on the ⁇ Y-axis direction side is performed by bringing the cartridge 50 (the front surface 532 in this embodiment) into contact with the regulating member 406.
- FIG. 17 is a view for explaining the cartridge 50a of the first modification.
- the X-axis direction dimensions of the first cartridge convex portion 56 and the second cartridge convex portion 58 are constant in all portions. However, a portion of the X-axis direction size may be increased.
- a protruding portion 57 that protrudes in the X-axis direction is provided on the rear surface 540 side (+ Y-axis direction side).
- the dimension Te in the X-axis direction of the first cartridge protrusion 56 at the portion where the protrusion 57 is provided is also smaller than the dimension Ta in the X-axis direction of the first rail 402 (FIG. 2).
- the second container-side convex portion 58b similarly has an X-axis dimension (referred to as Tf) that is larger than the X-axis dimension Tb of the second rail 404 (FIG. 2).
- Tf X-axis dimension
- Tb X-axis dimension
- the dimension in the X-axis direction has a relationship of Tc ⁇ Te ⁇ Ta ⁇ Td ⁇ Tf ⁇ Tb.
- the cartridge 50a when the cartridge 50a is mounted on the cartridge mounting portion 42, a certain amount of clearance is provided between the cartridge convex portions 56 and 58 and the rails 402 and 404, so that the cartridge 50a can be mounted more smoothly.
- the portion that can be inserted into the portion 42 and has a large dimension in the X-axis direction after mounting (the portion where the protruding portion 57 is located) cooperates with the first rails 402 and 404, so that the X on the + Y-axis direction side of the cartridge 50a Axial movement can be restricted.
- the first insertion hole 53 is provided at a position intermediate between the first side surface 534 and the second side surface 536 in the front surface 532, but further, in the front surface 532, It is preferable to be provided at an intermediate position with respect to the fourth side surface 539. By doing so, the cartridge 50 using the first insertion hole 53 and the rod 45 can be positioned more accurately.
- the “intermediate position between the third side surface 538 and the fourth side surface 539” does not have to be completely in the middle, and may not be disposed so as to be biased to one of the side surfaces.
- the “intermediate position” is a position where the central axis Ce of the first insertion hole 53 is within 10% of the center position with respect to the distance between the third side surface 538 and the fourth side surface 539 in the X-axis direction. including.
- the “intermediate position” is within 7.5% of the center position with respect to the distance in the X-axis direction between the third side surface 538 and the fourth side surface 539 so that the central axis Ce is arranged more intermediately. It is preferable to include a position within the range.
- the opening end 53g on the + Y axis direction side of the first insertion hole 53 is parallel to a plane parallel to the X axis and the Z axis, but may be inclined with respect to this plane.
- the contact portion 132 of the lever 120 protrudes in the ⁇ Y direction. Therefore, the portion on the + Z axis direction side is more on the ⁇ Y axis direction side than the portion on the ⁇ Z axis direction side so that the contact portion of the lever 120 does not interfere with the opening end 53g of the first insertion hole 53 on the + Y axis direction side.
- the opening end 53g may be inclined so as to retract backward.
- the “area of the opening end 53g” when the opening end 53g is inclined is the area when the opening end 53g is projected onto a plane parallel to the X axis and the Z axis.
- the present invention can be applied not only to an ink jet printer and its ink cartridge but also to an arbitrary printing apparatus that ejects liquid other than ink and its liquid container.
- the present invention can be applied to the following various printing apparatuses and their liquid containers.
- Image recording device such as a facsimile device
- Printing device for ejecting color material used for manufacturing a color filter for an image display device such as a liquid crystal display
- a printing device that ejects electrode materials used for electrode formation
- a printing device that ejects a liquid containing bioorganic materials used in biochip manufacturing
- a sample printing device as a precision pipette
- Lubricating oil printing device (7)
- Resin liquid printing device (8)
- Printing device for injecting lubricating oil pinpoint to precision machines such as watches and cameras (9) Micro hemispherical lens used for optical communication elements, etc.
- Optical lens A printing device that injects a transparent resin liquid such as an ultraviolet curable resin liquid onto the substrate to form an optical lens.
- printing apparatus which ejects an alkaline etching solution (11) any other printing apparatus including a liquid ejecting head ejecting a minute amount of liquid droplet
- droplet refers to the state of the liquid ejected from the printing apparatus, and includes those that have a tail in the form of particles, tears, or threads.
- the “liquid” here may be any material that can be ejected by the printing apparatus.
- the “liquid” may be a material in a state in which the substance is in a liquid phase, such as a material in a liquid state having high or low viscosity, and sol, gel water, other inorganic solvents, organic solvents, solutions, Liquid materials such as liquid resins and liquid metals (metal melts) are also included in the “liquid”.
- liquid includes not only a liquid as one state of a substance but also a liquid in which particles of a functional material made of a solid such as a pigment or metal particles are dissolved, dispersed or mixed in a solvent.
- representative examples of the liquid include ink and liquid crystal as described in the above embodiment.
- the ink includes various water-based inks and oil-based inks as well as various liquid compositions such as gel inks and hot melt inks.
- First insertion hole 53f Open end 53g ... Open end 53h ... Connection part 53p ... Straight line 53q ... Arc 53t ... Others End side part 53y ... One end side part 55 ... Corner part 5 6 ... 1st cartridge convex part 56a ... 1st convex part 56b ... 1st container side convex part 56c ... Space part 57 ... Protrusion part 58 ... 2nd cartridge convex part 58a ... 2nd convex part 58b ... 2nd Container side convex part 58c ... Space part 60 ... Control part 70 ... Printing material container 72 ... Cartridge case 74 ... Printing material supply unit 75 ... Opening 76 ... Printing material injection port 77 ...
- First side 534a First side 534 of the cap Protective container first side 536 Second side 536a
- Cap second side 536b Protective container second side 538
- Third side 539 Fourth side 540
- a biasing force A 'Biasing force B ... Biasing force C ... Force due to negative pressure
- Ca Center axis Cb . Center axis Ce ... Center axis P ... Position Ta ... Dimension in X axis direction Tb ... Dimension in X axis direction Tc ... Dimension in X axis direction Td ... X axis direction
- Dimensions Te ... Dimensions in the X-axis direction Tf ... Dimensions in the X-axis direction (not shown)
- Th ... Distance Tha ... Distance Thb ... Distance Vh ... Center position
Landscapes
- Ink Jet (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Optical Measuring Cells (AREA)
Abstract
Description
互いに直交する3つの空間軸をX軸、Y軸、Z軸とし、前記X軸、Y軸、Z軸に沿った方向をそれぞれX軸方向、Y軸方向、Z軸方向とし、前記カートリッジが前記カートリッジ装着部に挿入される方向を-Y軸方向とし、前記カートリッジが前記カートリッジ装着部から取り外される方向を+Y軸方向とするとき、
前記Y軸方向において対向する2つの面であって、前記-Y軸方向側に位置し、前記Z軸方向の寸法が前記X軸方向の寸法よりも大きい略長方形の前面と、前記+Y軸方向側に位置する後面と、
前記前面及び前記後面と交わり、前記Z軸方向において対向する2つの面であって、+Z軸方向側に位置する第1側面と、-Z軸方向側に位置する第2側面と、
前記前面、前記後面、前記第1側面、及び前記第2側面と交わり、前記X軸方向において対向する2つの面であって、+X軸方向側に位置する第3側面と、前記-X軸方向側に位置する第4側面と、を備えたケースと、
前記ケースの内部に設けられた印刷材収容部と、
前記前面に設けられ、前記ロッドが挿入される第1挿入孔と、
前記前面に設けられ、内部に前記印刷材供給管が挿入される印刷材供給口が配置されると共に、前記印刷材供給管が挿入される第2挿入孔と、
前記ケースの内部に設けられ、一端に前記印刷材供給口を有し、他端が前記印刷材収容部に接続された印刷材流路と、を備え、
前記第1挿入孔は、前記前面のうち、前記第1側面と前記第2側面との中間の位置に設けられる、カートリッジ。
また、適用例1のカートリッジでは、第1挿入孔が、前面のうち、第1側面と第2側面との中間の位置に設けられている。すなわち、前面の長手方向の中間の位置でカートリッジの位置決めを行っている。仮に、カートリッジの前面の長手方向の一方の端部に近い位置で位置決めを行った場合、一方の端部付近の位置ずれは抑えられるが、他方の端部付近の位置ずれを抑えることはできず、またそのずれは大きくなる。しかし、適用例1のカートリッジによれば、カートリッジの前面の長手方向の中間の位置で位置決めを行っているため、長手方向の両端部の位置ずれを同等に抑えることができる。よって、カートリッジをカートリッジ装着部に対して精度良く、また効率良く、位置決めすることができる。
前記印刷材流路の途中に設けられ、内部の圧力の変化に応じて容積が変化する検出室と、
前記ロッドの先端と当接するレバー部材であり、前記検出室の容積の変化に応じて変位することで前記ロッドを前記軸方向に沿って移動させるレバー部材と、を備えるカートリッジ。
適用例2に記載のカートリッジによれば、印刷材のエンド検出に用いられるロッドが第1挿入孔に挿入されることで、カートリッジの前面の長手方向の中間の位置で、カートリッジ装着部に対するカートリッジの位置決めが行なわれる。これにより、ロッドに対するカートリッジの位置ずれを抑制でき、印刷材のエンド検出を正確に行なうことができる。また、印刷材のエンド検出に用いられるロッドを用いて、カートリッジ装着部に対するカートリッジの位置決めを行うことから、別途位置決め用の部材を設ける必要がなく部品点数を低減でき、カートリッジも小型化できる。また、カートリッジが装着される印刷装置も小型化できる。
前記第1挿入孔には、前記ロッドの外周に配置されたロッドカバーも挿入される、カートリッジ。
適用例2に記載のカートリッジによれば、ロッドが第1挿入孔を形成する壁に接触することを防止できるため、検出室の容積の変化に対応させてロッドをスムーズに移動させることができる。これにより、印刷材のエンド検出をより正確に行なうことができる。
前記ケースは、
前記-Y軸方向側に開口を有し、前記印刷材収容部が内部に収容される保護容器と、
前記-Y軸方向側に設けられ、前記保護容器の前記開口を塞ぐように前記保護容器に取り付けられるキャップと、を備え、
前記第2挿入孔と前記第1挿入孔は、前記キャップに設けられている、カートリッジ。
適用例4に記載のカートリッジによれば、ケースが保護容器とキャップとを備え、キャップに第2挿入孔と第1挿入孔が設けられている。印刷材収容部が収容されている保護容器側は、キャップ側に比べ全体として重量が大きくなる。ケースの側面が前面側(-Y軸方向の先端側)から後面側(+Y軸方向の先端側)まで連続して形成されていると、前面側よりも後面側が下がるようにカートリッジ全体が傾いてしまう可能性がある。これに対し、印刷材収容部を収容する保護容器と、キャップとを別部材にすれば、キャップと保護容器との間のクリアランスの分だけ、保護容器がキャップに対してわずかに動けるように構成することが可能となる。よって、印刷材収容部の重量が大きくても、保護容器の部分だけが傾いて、キャップは傾かずに正しい姿勢を保つことができる。これにより、装着状態において、キャップに設けられた第2挿入孔や第1挿入孔のカートリッジ装着部に対する位置が設計された正しい位置からずれる可能性を低減できる。
前記装着状態において、前記カートリッジ装着部に設けられた装置側端子群と接触するカートリッジ側端子群を備え、
前記カートリッジ側端子群は、前記キャップに設けられている、カートリッジ。
適用例5に記載のカートリッジによれば、装着状態において、正しい位置からずれる可能性を低減したキャップにカートリッジ側端子群を設けることで、カートリッジ側端子群と装置側端子群との電気的な接続を安定に図ることができる。
前記キャップは、前記ケースの前記第1側面の一部を構成する第1側面と、前記ケースの前記第2側面の一部を構成する第2側面と、を有し、
前記キャップの第1側面には、+Z軸方向に突出する第1凸部が設けられ、前記第1凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第1の装置側側壁部に設けられた前記Y軸方向に延びる第1レールによって案内され、
前記キャップの第2側面には、-Z軸方向に突出する第2凸部が設けられ、前記第2凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第2の装置側側壁部に設けられた前記Y軸方向に延び、前記第1レールとは前記X軸方向の寸法が異なる第2レールによって案内され、
前記第1凸部と前記第2凸部の前記X軸方向の寸法は異なる、カートリッジ。
適用例6に記載のカートリッジよれば、X軸方向の寸法が異なる第1凸部と第2凸部を備えることから、第1レールのX軸方向の寸法を第1凸部に対応させ、第2レールのX軸方向の寸法を第2凸部に対応させることで、カートリッジの第1側面と第2側面とを本来の位置関係とは逆にした誤った状態でカートリッジが装着されることを防止できる。
前記保護容器は、前記ケースの前記第1側面の他の一部を構成する第1側面と、前記ケースの前記第2側面の他の一部を構成する第2側面と、を有し、
前記保護容器の第1側面には、+Z軸方向に突出する第1の容器側凸部が設けられ、前記第1の容器側凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第1レールによって案内され、
前記保護容器の第2側面には、前記-Z軸方向に突出する第2の容器側凸部が設けられ、前記第2の容器側凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第2レールによって案内され、
前記1の容器側凸部と前記第2の容器側凸部との少なくともいずれか一方の前記+Y軸方向側の一部分は、前記一部分よりも前記-Y軸方向側に位置する他の部分に比べ前記X軸方向の寸法が大きくなるようにX軸方向に突出する突出部を有する、カートリッジ。
適用例7に記載のカートリッジによれば、第1の容器側凸部と第2の容器側凸部との少なくともいずれか一方は、X軸方向の寸法が他の部分に比べ大きい一部分を有する。これにより、カートリッジを装着する際に、カートリッジの凸部とカートリッジ装着部のレールとの間にある程度の隙間を設けることで、よりスムーズにカートリッジをカートリッジ装着部に挿入できると共に、装着後はX軸方向の寸法が大きい一部分がレールと協働することで、カートリッジの+Y軸方向側のX軸方向の動きを規制できる。
前記第1挿入孔の前記-Y軸方向側の開口端は、前記印刷材供給管が前記印刷材供給口に挿入される前に、前記ロッドが挿入される位置に設けられている、カートリッジ。
適用例8に記載のカートリッジによれば、ロッドによって印刷材カートリッジをカートリッジ装着部内の正しい位置に導いた後に、印刷材供給管と印刷材供給口との接続が行われる。よって、印刷材供給管の先端がカートリッジの印刷材供給口とは異なる位置に衝突することによって、印刷材供給管が破損してしまうのを防ぐことができる。また、印刷材供給管の中心軸と印刷材供給口の中心との位置ずれを小さくすることができるため、印刷材供給口と供給管の外周との間に大きな隙間が生じにくく、このような隙間からインクが漏れてしまう可能性を低減することができる。
前記第1挿入孔の前記開口端は、前記印刷材供給口よりも前記-Y軸方向側に設けられている、カートリッジ。
適用例9に記載のカートリッジによれば、装置側前壁部に設けられた印刷材供給管とロッドとの+Y軸方向側の先端がY軸方向において同じ位置にある場合でも、印刷材供給口と第1挿入孔の開口端とを所定の位置関係とすることで、印刷材供給管が印刷材供給口に挿入される前に、ロッドを第1挿入孔に挿入できる。
前記カートリッジ装着部に設けられた装置側識別部材に嵌め合わされることが可能か否かで前記カートリッジの種類を識別するためのカートリッジ側識別部材を備え、
前記カートリッジ側識別部材は、前記第1挿入孔に前記ロッドが挿入された後であり、かつ、前記印刷材供給口に前記印刷材供給管が挿入される前に前記装置側識別部材との嵌め合いが開始されるように構成されている、カートリッジ。
前記カートリッジ側識別部材の-Y軸方向側の端は、前記第1挿入孔の前記開口端よりも前記+Y軸方向側に設けられており、かつ、前記印刷材供給口よりも前記-Y軸方向側に設けられている、カートリッジ。
適用例11に記載のカートリッジによれば、印刷材供給管の+Y軸方向の先端、ロッドの+Y軸方向の先端、及び、装置側識別部材の+Y軸方向側の端がY軸方向において同じ位置にある場合でも、印刷材供給口、第1挿入孔の開口端、及び、カートリッジ側識別部材の-Y軸方向の端を所定の位置関係とすることで、第1挿入孔にロッドが挿入された後であり、かつ、印刷材供給口に印刷材供給管が挿入される前にカートリッジ側識別部材と装置側識別部材との嵌め合いを開始できる。
このような構成を採用すれば、リブを用いるという単純な構成でカートリッジ側識別部材を形成できる。
前記第1挿入孔は、前記Y軸方向に所定の長さを有し、
前記第1挿入孔の前記-Y軸方向側の開口端の面積は、前記第1挿入孔の前記+Y軸方向の開口端の面積よりも小さい、カートリッジ。
適用例12に記載のカートリッジによれば、第1挿入孔のうち、ロッドを最初に受け入れる-Y軸方向側の開口端が、もう一方の開口端である+Y軸方向側の開口端よりも広くなっている。よって、ロッドを第1挿入孔に受け入れやすくしつつ、ロッドを+Y軸方向側の開口端まで挿入することで、カートリッジの位置決めをより精度良く行なうことができる。
前記第1挿入孔は、接続部から前記-Y軸方向側の開口端に至る一端側部分と、前記接続部から+Y軸方向側の開口端に至る他端側部分と、によって構成され、
前記一端側部分は、前記X軸と前記Z軸に平行な断面が円である円錐台であり、
前記他端側部分は、前記X軸と前記Z軸に平行な断面が、前記Z軸方向において対向する一対の直線と、前記X軸方向において対向する2つの円弧との組み合わせにより形成された形状である柱状であり、
前記接続部において、前記他端側部分の前記断面を構成する前記一対の直線間の距離は、前記一端側部分の前記断面を構成する前記円の直径よりも小さく、前記他端側部分の前記断面を構成する前記一対の円弧の直径は、前記一端側部分の前記断面を構成する前記円の直径と同一である、カートリッジ。
適用例13に記載のカートリッジによれば、一端側部分では、断面の面積が-Y軸方向側の開口端から接続部に向かうに従って徐々に小さくなる。そして接続部、つまり他端側部分の入口で断面の形状が変化し、Z軸方向の寸法だけが小さくなる。X軸方向の寸法は変化しない。接続部から+Y軸方向側の開口端までは、断面の形状及び面積が変化しない。よって、一端側部分から他端側部分に、ロッドをスムーズに案内することができる。また、他端側部分では、X軸方向については、ロッドと第1挿入孔との間に隙間を設けて+Y軸方向側の開口端までロッドをスムーズに案内できるようにしつつ、Z軸方向については、ロッドの位置を安定させ、カートリッジ装着部に対するカートリッジの位置決めを精度良く行なうことを可能とする。
A.実施例:
B.変形例:
A-1.印刷材供給システムの全体構成:
図1は、印刷材供給システム1の構成を示す斜視図である。図1には、互いに直交するXYZ軸が描かれている。これ以降に示す図についても必要に応じてXYZ軸が描かれている。他の図に描かれたXYZ軸は、図1のXYZ軸に方向が対応している。印刷材供給システム1は、印刷装置としてのプリンター10と、カートリッジ50とを備える。
図2は、カートリッジ装着部42の正面図である。図3はカートリッジ装着部42の側面図である。図4は、インクエンドの検出方法について説明するための図である。なお、図4には、後述するロッドカバーの図示は省略している。図2~図4を用いてカートリッジ装着部42の詳細構成について説明する。なお、カートリッジ装着部42において、X軸方向を幅方向、Z軸方向を高さ方向、Y軸方向を長さ方向とも呼ぶ。
A-3-1.カートリッジの主要部材の説明:
図5は、カートリッジ50の分解斜視図である。図6は、カートリッジ50の外観斜視図である。図7Aは、カートリッジ50の正面図である。図7B及び図7Cは、第1挿入孔53の部分を模式的に表した部分断面図である。図7Bは、図7Aの7X-7X断面の一部であり、カートリッジ50をX軸とY軸に平行で第1挿入孔53の中心軸Ceを含む面で切断した断面である。図7Cは、図7Aの7Z-7Z断面の一部であり、カートリッジ50をZ軸とY軸に平行で第1挿入孔53の中心軸Ceを含む面で切断した断面である。図7Dは、接続部53hにおける、一端側部分53yと他端側部分53tの、Z軸とX軸に平行な断面を示した図である。図8は、カートリッジ50の内部構成を説明するための模式図である。図9A-図9Cは、カートリッジ装着部にカートリッジを装着する様子を示す模式図である。図9A-Cは、図9A,図9B,図9Cの順に、時系列となっている。カートリッジ50において、X軸方向を幅方向、Y軸方向を長さ方向、Z軸方向を高さ方向とも呼ぶ。
図10は、印刷材供給ユニット74の構成を示した分解斜視図である。印刷材検出機構80は、略円筒形状の検出室100を備える。検出室100は、印刷材流路90(図8)の途中に設けられている。検出室100には、印刷材収容部70内のインクが流入する流入口102と、印刷材供給口78fに向けてインクが流出する流出口104が開口している。また、検出室100は、可撓性の材料で形成されたフィルム118によって上端面が覆われている。検出室100は、内部の圧力の変化に応じてフィルム118が変形して容積が変化する。
図14~図16を用いてインクエンドの検出の詳細説明を行う。図14は、インクエンドの検出を説明するための第1の図であり、カートリッジ50が装着されていない状態、特に、インクが十分に残っているカートリッジ50を装着する前の状態を示している。図15は、インクエンドの検出を説明するための第2の図であり、インクが十分に残っている状態のカートリッジ50がカートリッジ装着部42に装着されたときの状態を示している。図16は、インクエンドの検出を説明するための第3の図であり、カートリッジ装着部42に装着されたインクカートリッジ50のインクが無くなったとき、または残り少なくなったとき(インクエンド時)の状態を示している。
なお、フィルム118自体のY軸方向の変形量は小さいものの、その変形量は、レバー部材120によって、当接部132において所定のレバー比R(=D2/D1>1,図13参照)で増幅される。よって、フィルム118自体のY軸方向の変形量が小さくても、ロッド45の動きを大きくすることが可能である。また、バネ49がロッド45を付勢する力Bは、レバー部材120のレバー比Rで増幅される。よって、図15の状態から図16の状態に移行する際には、比較的小さな力でも、レバー120をスムーズに回動させることができ、インクエンドを素早く検知することが可能である。
上記のように、本実施例のカートリッジ50には、インクエンドを検出するための圧電検出機構を設けていない。これにより、カートリッジの内部に、電力供給や、このような検出機構とプリンター10との信号授受のための電気的導通手段(配線や電極端子など)を設ける必要が無いため、カートリッジの構造を単純にできる。よって、カートリッジ50を小型化できる。また、カートリッジが装着される印刷装置も小型化できる。また、カートリッジ50の製造コストを抑えることができる。また、プリンター10に比べ大量に製造される取り換え可能なカートリッジ50の製造コストを抑えることで、印刷材供給システム1全体の製造コストも抑えることができる。
また、本実施例では、図3に示すように、第1挿入孔53の開口端53fは、印刷材供給口印刷材供給管46の先端46cとロッド45の+Y軸方向側の先端45cがY軸方向において同じ位置Pにある。しかし、本実施例では、図8に示すように、第1挿入孔53の開口端53fが、印刷材供給口78fよりも-Y軸方向側に設けられているため、容易に上記装着態様を達成できる。すなわち、印刷材供給管46が印刷材供給口78fに挿入される前に、まずロッド45が第1挿入孔53に挿入されて、カートリッジ50の位置決めを行うことができる。
以上、本発明の一実施例について説明したが、本発明はこのような実施例に限定されず、その趣旨を逸脱しない範囲で種々の構成を採ることができる。例えば以下のような変形が可能である。なお、以下の変形例は、いずれも上記の実施例を基礎とするものであるため、上記の実施例で説明した効果や変形例については、以下の変形例についても同様に適用される。また、上記の実施例と共通する部分については説明を省略する。また、上記の実施例と共通する要素については同じ符号を用いる。
図17は、第1変形例のカートリッジ50aを説明するための図である。上記実施例では、第1のカートリッジ凸部56や第2のカートリッジ凸部58のX軸方向の寸法は、すべての部分で一定であったが、一部分のX軸方向の寸法を大きくして良い。例えば、保護容器84の第1側面534bに設けられた第1の容器側凸部56bのうち、後面540側(+Y軸方向側)にX軸方向に突出する突出部57を設ける。突出部57が設けられた部分の第1のカートリッジ凸部56のX軸方向の寸法Teも第1レール402(図2)のX軸方向の寸法Taよりも小さい。また、図示は省略するが、第2の容器側凸部58bについても、同様に、X軸方向の寸法(Tfとする)が第2レール404(図2)のX軸方向の寸法Tbよりも小さい突出部を設ける。X軸方向の寸法は、Tc<Te<Ta<Td<Tf<Tbの関係となる。こうすることで、カートリッジ50aをカートリッジ装着部42に装着する際には、カートリッジ凸部56,58とレール402,404との間にある程度の隙間を設けることで、よりスムーズにカートリッジ50aをカートリッジ装着部42に挿入できると共に、装着後はX軸方向の寸法が大きい部分(突出部57が位置する部分)が第1レール402,404と協働することで、カートリッジ50aの+Y軸方向側のX軸方向の動きを規制できる。
上記実施例では、第1挿入孔53は、前面532のうち、第1側面534と第2側面536との中間の位置に設けられていたが、さらに、前面532のうち、第3側面538と第4側面539との中間の位置に設けられることが好ましい。こうすることで、第1挿入孔53とロッド45を用いたカートリッジ50の位置決めをさらに精度良く行なうことができる。ここで、「第3側面538と第4側面539との中間の位置」とは、完全に中間である必要はなく、どちらか一方の側面に偏って配置されていなければ良い。例えば、「中間の位置」とは、第1挿入孔53の中心軸Ceが、第3側面538と第4側面539のX軸方向における距離に対して中心位置から10%以内の範囲内の位置を含む。なお、中心軸Ceが、より中間に配置されるように、「中間の位置」は、第3側面538と第4側面539のX軸方向における距離に対して中心位置から7.5%以内の範囲内の位置を含むことが好ましい。
上記実施例では、第1挿入孔53の+Y軸方向側の開口端53gは、X軸及びZ軸に平行な面に対して平行であるが、この面に対して傾斜させても良い。図14及び図15に示したように、印刷材収容部70内にインクが有る場合は、レバー120の当接部132が-Y方向に突出した状態となる。よって、レバー120の当接部が、第1挿入孔53の+Y軸方向側の開口端53gと干渉しないよう、+Z軸方向側の部分が-Z軸方向側の部分よりも-Y軸方向側に後退するように、開口端53gを傾斜させても良い。なお、開口端53gが傾斜している場合における「開口端53gの面積」は、X軸及びZ軸に平行な面に開口端53gを投影した場合の面積とする。
本発明は、インクジェットプリンター及びそのインクカートリッジに限らず、インク以外の他の液体を噴射する任意の印刷装置及びその液体収容容器にも適用することができる。例えば、以下のような各種の印刷装置及びその液体収容容器に適用可能である。
(1)ファクシミリ装置等の画像記録装置
(2)液晶ディスプレー等の画像表示装置用のカラーフィルタの製造に用いられる色材噴射する印刷装置
(3)有機EL(Electro Luminescence)ディスプレーや、面発光ディスプレー (Field Emission Display、FED)等の電極形成に用いられる電極材を噴射する印刷装置
(4)バイオチップ製造に用いられる生体有機物を含む液体を噴射する印刷装置
(5)精密ピペットとしての試料印刷装置
(6)潤滑油の印刷装置
(7)樹脂液の印刷装置
(8)時計やカメラ等の精密機械にピンポイントで潤滑油を噴射する印刷装置
(9)光通信素子等に用いられる微小半球レンズ(光学レンズ)などを形成するために紫外線硬化樹脂液等の透明樹脂液を基板上に噴射する印刷装置
(10)基板などをエッチングするために酸性又はアルカリ性のエッチング液を噴射する印刷装置
(11)他の任意の微小量の液滴を吐出させる液体噴射ヘッドを備える印刷装置
5…キャップ部材
10…プリンター
11…前面カバー
12…開口
13…交換用カバー
15…操作ボタン
20…キャリッジ
22…ヘッド
24…チューブ
30…駆動機構
32…タイミングベルト
34…駆動モーター
42…カートリッジ装着部
45…ロッド
45a…-Y軸方向側の部分
45b…+Y軸方向側の部分
45c…先端
46…印刷材供給管
46a…基端部
46b…先端部
46c…先端
47…ロッドカバー
48…棒状部材
49…バネ
50…カートリッジ
50a…カートリッジ
51…第2挿入孔
52…コーナー部
53…第1挿入孔
53f…開口端
53g…開口端
53h…接続部
53p…直線
53q…円弧
53t…他端側部分
53y…一端側部分
55…コーナー部
56…第1のカートリッジ凸部
56a…第1凸部
56b…第1の容器側凸部
56c…空間部
57…突出部
58…第2のカートリッジ凸部
58a…第2凸部
58b…第2の容器側凸部
58c…空間部
60…制御部
70…印刷材収容部
72…カートリッジケース
74…印刷材供給ユニット
75…開口
76…印刷材注入口
77…上流端
78…印刷材導出管
78f…印刷材供給口
80…印刷材検出機構
82…キャップ
84…保護容器
90…印刷材流路
100…検出室
102…流入口
104…流出口
106…逆止弁
108…バネ
108…付勢バネ
110…突起
112…受圧板
114…受圧部
116…規制部
118…フィルム
120…レバー部材
122…軸穴
124…ガイド孔
126…軸ピン
128…ガイドピン
130…凸部
132…当接部
132…凸部
136…センサー
138…遮光部
140…流入通路
142…流出通路
200…回路基板
202…カートリッジ側端子群
300…検出機構
402…第1レール
404…第2レール
406…規制部材
410…接点機構
412…保持部材
414…装置側端子群
420…装置側識別部材
420…識別部材
422…リブ
422c…端
434…第1の装置側側壁部
436…第2の装置側側壁部
438…第3の装置側側壁部
439…第4の装置側側壁部
440…開口
450…収容空間
450a…装着室
520…識別部材
520…カートリッジ側識別部材
520f…先端面
522…リブ
532…前面
534…第1側面
534a…キャップの第1側面
534b…保護容器の第1側面
536…第2側面
536a…キャップの第2側面
536b…保護容器の第2側面
538…第3側面
539…第4側面
540…後面
A…付勢力
A’…付勢力
B…付勢力
C…負圧による力
Ca…中心軸
Cb…中心軸
Ce…中心軸
P…位置
Ta…X軸方向の寸法
Tb…X軸方向の寸法
Tc…X軸方向の寸法
Td…X軸方向の寸法
Te…X軸方向の寸法
Tf…X軸方向の寸法(図示省略)
Th…距離
Tha…距離
Thb…距離
Vh…中心位置
Claims (13)
- 装置側前壁部に固定され、所定方向に延びる中心軸を有する印刷材供給管と、前記中心軸に平行な軸を有し前記軸方向に沿って移動可能であり、前記装置側前壁部に設けられたロッドと、前記ロッドの変位を検出するセンサーと、を備えたカートリッジ装着部に対して、着脱可能に装着されるカートリッジであって、
互いに直交する3つの空間軸をX軸、Y軸、Z軸とし、前記X軸、Y軸、Z軸に沿った方向をそれぞれX軸方向、Y軸方向、Z軸方向とし、前記カートリッジが前記カートリッジ装着部に挿入される方向を-Y軸方向とし、前記カートリッジが前記カートリッジ装着部から取り外される方向を+Y軸方向とするとき、
前記Y軸方向において対向する2つの面であって、前記-Y軸方向側に位置し、前記Z軸方向の寸法が前記X軸方向の寸法よりも大きい略長方形の前面と、前記+Y軸方向側に位置する後面と、
前記前面及び前記後面と交わり、前記Z軸方向において対向する2つの面であって、+Z軸方向側に位置する第1側面と、-Z軸方向側に位置する第2側面と、
前記前面、前記後面、前記第1側面、及び前記第2側面と交わり、前記X軸方向において対向する2つの面であって、+X軸方向側に位置する第3側面と、-X軸方向側に位置する第4側面と、
を備えたケースと、
前記ケースの内部に設けられた印刷材収容部と、
前記前面に設けられ、前記ロッドが挿入される第1挿入孔と、
前記前面に設けられ、内部に前記印刷材供給管が挿入される印刷材供給口が配置されると共に、前記印刷材供給管が挿入される第2挿入孔と、
前記ケースの内部に設けられ、一端に前記印刷材供給口を有し、他端が前記印刷材収容部に接続された印刷材流路と、
を備え、
前記第1挿入孔は、前記前面のうち、前記第1側面と前記第2側面との中間の位置に設けられる、カートリッジ。 - 請求項1に記載のカートリッジであって、さらに、
前記印刷材流路の途中に設けられ、内部の圧力の変化に応じて容積が変化する検出室と、
前記ロッドの先端と当接するレバー部材であり、前記検出室の容積の変化に応じて変位することで前記ロッドを前記軸方向に沿って移動させるレバー部材と、を備えるカートリッジ。 - 請求項1又は請求項2に記載のカートリッジであって、
前記第1挿入孔には、前記ロッドの外周に配置されたロッドカバーも挿入される、カートリッジ。 - 請求項1乃至請求項3のいずれか一項に記載のカートリッジであって、
前記ケースは、
前記-Y軸方向側に開口を有し、前記印刷材収容部が内部に収容される保護容器と、
前記-Y軸方向側に設けられ、前記保護容器の前記開口を塞ぐように前記保護容器に取り付けられるキャップと、を備え、
前記第2挿入孔と前記第1挿入孔は、前記キャップに設けられている、カートリッジ。 - 請求項4に記載のカートリッジであって、さらに、
前記装着状態において、前記カートリッジ装着部に設けられた装置側端子群と接触するカートリッジ側端子群を備え、
前記カートリッジ側端子群は、前記キャップに設けられている、カートリッジ。 - 請求項4又は請求項5に記載のカートリッジにおいて、
前記キャップは、前記ケースの前記第1側面の一部を構成する第1側面と、前記ケースの前記第2側面の一部を構成する第2側面と、を有し、
前記キャップの第1側面には、+Z軸方向に突出する第1凸部が設けられ、前記第1凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第1の装置側側壁部に設けられた前記Y軸方向に延びる第1レールによって案内され、
前記キャップの第2側面には、-Z軸方向に突出する第2凸部が設けられ、前記第2凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第2の装置側側壁部に設けられた前記Y軸方向に延び、前記第1レールとは前記X軸方向の寸法が異なる第2レールによって案内され、
前記第1凸部と前記第2凸部の前記X軸方向の寸法は異なる、カートリッジ。 - 請求項6に記載のカートリッジにおいて、
前記保護容器は、前記ケースの前記第1側面の他の一部を構成する第1側面と、前記ケースの前記第2側面の他の一部を構成する第2側面と、を有し、
前記保護容器の第1側面には、+Z軸方向に突出する第1の容器側凸部が設けられ、前記第1の容器側凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第1レールによって案内され、
前記保護容器の第2側面には、前記-Z軸方向に突出する第2の容器側凸部が設けられ、前記第2の容器側凸部は、前記カートリッジを前記カートリッジ装着部に挿入する際及び前記カートリッジを前記カートリッジ装着部から取り外す際に、前記第2レールによって案内され、
前記1の容器側凸部と前記第2の容器側凸部との少なくともいずれか一方の前記+Y軸方向側の一部分は、前記一部分よりも前記-Y軸方向側に位置する他の部分に比べ前記X軸方向の寸法が大きくなるようにX軸方向に突出する突出部を有する、カートリッジ。 - 請求項1乃至請求項7のいずれか一項に記載のカートリッジであって、
前記第1挿入孔の前記-Y軸方向側の開口端は、前記印刷材供給管が前記印刷材供給口に挿入される前に、前記ロッドが挿入される位置に設けられている、カートリッジ。 - 請求項8に記載のカートリッジであって、
前記第1挿入孔の前記開口端は、前記印刷材供給口よりも前記-Y軸方向側に設けられている、カートリッジ。 - 請求項8又は請求項9に記載のカートリッジであって、さらに、
前記カートリッジ装着部に設けられた装置側識別部材に嵌め合わされることが可能か否かで前記カートリッジの種類を識別するためのカートリッジ側識別部材を備え、
前記カートリッジ側識別部材は、前記第1挿入孔に前記ロッドが挿入された後であり、かつ、前記印刷材供給口に前記印刷材供給管が挿入される前に前記装置側識別部材との嵌め合いが開始されるように構成されている、カートリッジ。 - 請求項10に記載のカートリッジであって、
前記カートリッジ側識別部材の-Y軸方向側の端は、前記第1挿入孔の前記開口端よりも前記+Y軸方向側に設けられており、かつ、前記印刷材供給口よりも前記-Y軸方向側に設けられている、カートリッジ。 - 請求項1乃至請求項11のいずれか一項に記載のカートリッジであって、
前記第1挿入孔は、前記Y軸方向に所定の長さを有し、
前記第1挿入孔の前記-Y軸方向側の開口端の面積は、前記第1挿入孔の前記+Y軸方向側の開口端の面積よりも小さい、カートリッジ。 - 請求項12に記載のカートリッジであって、
前記第1挿入孔は、接続部から前記-Y軸方向側の開口端に至る一端側部分と、前記接続部から+Y軸方向側の開口端に至る他端側部分と、によって構成され、
前記一端側部分は、前記X軸と前記Z軸に平行な断面が円である円錐台であり、
前記他端側部分は、前記X軸と前記Z軸に平行な断面が、前記Z軸方向において対向する一対の直線と、前記X軸方向において対向する2つの円弧との組み合わせにより形成された形状である柱状であり、
前記接続部において、前記他端側部分の前記断面を構成する前記一対の直線間の距離は、前記一端側部分の前記断面を構成する前記円の直径よりも小さく、前記他端側部分の前記断面を構成する前記一対の円弧の直径は、前記一端側部分の前記断面を構成する前記円の直径と同一である、カートリッジ。
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JP2014043016A (ja) * | 2012-08-24 | 2014-03-13 | Brother Ind Ltd | 印刷流体供給装置及び印刷流体カートリッジ |
US8807723B2 (en) | 2012-05-21 | 2014-08-19 | Seiko Epson Corporation | Printing material holding container |
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