[0001] The present disclosure relates to a cartridge accommodating device to which a cartridge
is attachable, and also to a system including the cartridge accommodating device and
the cartridge.
[0002] Conventionally, there has been known a cartridge accommodating device to which a
cartridge is detachably attachable. The conventional cartridge accommodating device
includes a connector, and the cartridge is provided with a circuit board. During attachment
of the cartridge to the cartridge accommodating device, an electrical interface formed
on the circuit board of the cartridge (electrodes, for example) comes into contact
with an electrical contact provided at the connector of the cartridge accommodating
device. With this contact between the electrical interface and the electrical contact,
information stored in an IC mounted on the circuit board of the cartridge can be transmitted
to the cartridge accommodating device.
[0003] For attaching the cartridge to the cartridge accommodating device, the electrical
interface of the cartridge keeps slidingly moving against the electrical contact of
the connector until completion of the attachment of the cartridge to the cartridge
accommodating device once the electrical interface of the cartridge is brought into
contact with the electrical contact of the connector. As a result, resistance applied
to the cartridge during the insertion thereof may become greater than otherwise.
[0004] In order to address the above problem, the connector of the cartridge accommodating
device may be designed to be movable, as disclosed in
Japanese Patent Application Publication No. 2017-052220, for example. In this device, due to the movable structure of the connector, the
connector is allowed to move to a position where the electrical contact thereof is
separated from the electrical interface of the cartridge during insertion of the cartridge
into the cartridge accommodating device, and then to a position where the electrical
contact makes contact with the electrical interface of the cartridge upon completion
of the attachment of the cartridge to the cartridge accommodating device.
[0005] However, in the above-described cartridge accommodating device including the movable
connector, a connecting member, such as a flexible flat cable, is necessary to connect
the connector to the cartridge accommodating device. A complicated structure is therefore
required for the cartridge accommodating device. Further, due to the movable structure
of the connector, the position of the electrical contact belonging to the movable
connector may become unstable.
[0006] EP 3 386 759 A1 discloses a cartridge accommodating device comprising a holder, a connector, the
connector comprising a housing and a conductive member which comprises a leaf spring.
[0007] In view of the foregoing, it is an object of the disclosure to provide: a cartridge
accommodating device that can stabilize a position of an electrical contact provided
at a movable connector, without necessitating a complicated structure; and a system
including the cartridge accommodating device and a cartridge attachable thereto.
- (1) In order to attain above and other object, according to one aspect, the present
disclosure provides a cartridge accommodating device according to claim 1.
With this structure, the housing of the connector is supported by the first surface
of the holder. Accordingly, the position of the conductive member supported by the
housing can be stabilized. Further, in the connector, only the movable member is configured
as a movable member, while the housing supporting the conductive member is maintained
immovable. Hence, there is no need to provide any other member (flexible flat cable,
for example) for connecting the housing to the holder. The structure of the connector
can be prevented from getting complicated.
The cartridge is pushed in the insertion direction to be inserted into the internal
space of the holder, and the cartridge is pulled out to be remove from the internal
space of the holder. Normally, applying a pushing force to the cartridge is easier
than applying a pulling force to the cartridge.
According to the above cartridge accommodating device, in the conductive member, the
one end of the leaf spring is fixed to the housing at a position forward of the contact
in the insertion direction; and the another end of the leaf spring is a free end positioned
upstream of the contact in the insertion direction. With this structure, resistance
applied to the cartridge by the leaf spring via the contact during removal of the
cartridge from the holder can be made smaller than that during the insertion of the
cartridge into the holder. Accordingly, the resistance applied to the cartridge during
the removal of the cartridge from the holder is restricted from getting excessively
large.
- (2) In the cartridge accommodating device according to the aspect (1), preferably,
the movable member has a surface positioned opposite the first surface with respect
to the free end in the prescribed direction; and the surface of the movable member
faces the free end in the prescribed direction.
With this structure, the movement of the conductive member can be associated with
the movement of the movable member through a simple structure.
- (3) In the cartridge accommodating device according to any one of the aspects (1),
(2), preferably, the prescribed direction is a vertical direction; and the movable
member is configured to be positioned at the first position due to a self-weight thereof
without application of any external force.
With this structure, the movable member can be situated at the first position without
using any urging member such as a spring, in a state where no external force is applied
to the movable member.
- (4) In the cartridge accommodating device according to any one of the aspects (1)-(3),
preferably, the movable member has a first sloped surface facing upstream in the insertion
direction, the first sloped surface being sloped to extend away from the first surface
toward downstream in the insertion direction. The first sloped surface is configured
to be contacted by the cartridge from an upstream thereof in the insertion direction.
With this structure, the movable member can be easily moved when contacted by the
cartridge from its upstream side in the insertion direction during the insertion of
the cartridge into the holder.
- (5) In the cartridge accommodating device according to any one of the aspects (1)-(4),
preferably, the movable member has a second sloped surface facing downstream in the
insertion direction, the second sloped surface being sloped to extend away from the
first surface toward upstream in the insertion direction. The second sloped surface
is contacted by the cartridge from a downstream side thereof in the insertion direction.
With this structure, the movable member can be easily moved when contacted by the
cartridge from its downstream side in the insertion direction during the removal of
the cartridge from the holder.
- (6) Preferably, the cartridge accommodating device according to any one of the aspects
(1)-(5), may further include a substrate supported by the first surface of the holder.
The connector is mounted on the substrate and supported by the first surface of the
holder via the substrate.
- (7) In the cartridge accommodating device according to any one of the aspects (1)-(6),
preferably, the housing defines therein an accommodation space for movably accommodating
the movable member; and the housing further includes a housing protrusion protruding
from an inner surface defining the accommodation space. In this case, preferably,
the movable member includes a protrusion. The protrusion is configured to contact
the housing protrusion to maintain the movable member at the first position without
application of any external force.
With this structure, the movable member can be maintained at the first position without
using any urging member such as a spring, in a state where no external force is applied
to the movable member.
- (8) According to another aspect, the present disclosure also discloses a system including:
the cartridge accommodating device according to any one of the aspects (1)-(7), and
the cartridge configured to be inserted into the internal space of the holder and
attached to the cartridge accommodating device. The cartridge includes: a circuit
board including the electrical interface; and a board supporting portion supporting
the circuit board. The movable member at the first position is configured to be moved
to the second position when contacted by the board supporting portion of the cartridge
from an upstream side thereof in the insertion direction. The free end is configured
to be moved from the remote position to the proximate position in association with
the movement of the movable member from the first position to the second position.
The movable member at the second position is caused to move to the first position
after the board supporting portion moves past the movable member in the insertion
direction while making contact with the movable member. The free end is configured
to be moved from the proximate position to the remote position in association with
the movement of the movable member from the second position to the first position.
The contact of the conductive member is electrically connected to the electrical interface
of the ink cartridge in response to the movement of the free end from the proximate
position to the remote position.
With this structure, the movable member is reliably movable between the first position
and the second position to move the portion of the conductive member between the remote
position and the proximate position during the insertion of the cartridge into the
holder of the cartridge accommodating device.
- (9) In the system according to the aspect (8), preferably, the board supporting portion
has a first inclined surface. The first inclined surface is inclined to extend away
from the first surface toward downstream in the insertion direction in a state where
the cartridge is accommodated in the internal space of the holder. The first inclined
surface is configured to come into abutment with the movable member from an upstream
side thereof in the insertion direction.
With this structure, the movable member can be easily moved when contacted by the
first inclined surface of the cartridge from its upstream side in the insertion direction
during the insertion of the cartridge into the holder.
- (10) In the system according to the aspect (8) or (9), preferably, the board supporting
portion has a second inclined surface. The second inclined surface is inclined to
extend away from the first surface toward upstream in the insertion direction in a
state where the cartridge is accommodated in the internal space of the holder. The
second inclined surface is configured to come into abutment with the movable member
from a downstream side thereof in the insertion direction.
With this structure, the movable member can be easily moved when contacted by the
second inclined surface of the cartridge from its downstream side in the insertion
direction during the removal of the cartridge from the holder.
[0008] The particular features and advantages of the embodiment(s) as well as other objects
will become apparent from the following description taken in connection with the accompanying
drawings, in which:
Fig. 1 is a schematic cross-sectional view schematically illustrating an internal
structure of a printer 10 according to one embodiment;
Fig. 2 is a perspective view illustrating an external configuration of an ink cartridge
30 according to the embodiment;
Fig. 3 is a vertical cross-sectional view illustrating an internal configuration of
the ink cartridge 30 according to one embodiment;
Fig. 4 is a vertical cross-sectional view illustrating a configuration of a cartridge
attachment section 110 of the printer 10 according to the embodiment;
Fig. 5 is a perspective view of a connector 125 of the cartridge attachment section
110 of the printer 10 according to the embodiment;
Fig. 6 is a vertical cross-sectional view of the ink cartridge 30 and the cartridge
attachment section 110 according to the embodiment, and particularly illustrating
an initial state in a process of attachment of the ink cartridge 30 to the cartridge
attachment section 110;
Fig. 7 is a vertical cross-sectional view of the ink cartridge 30 and the cartridge
attachment section 110 according to the embodiment, and illustrating a state after
the state of Fig. 6 in the process of attachment of the ink cartridge 30 to the cartridge
attachment section 110;
Fig. 8 is a vertical cross-sectional view of the ink cartridge 30 and the cartridge
attachment section 110 according to the embodiment, and illustrating a state after
the state of Fig. 7 in the process of attachment of the ink cartridge 30 to the cartridge
attachment section 110;
Fig. 9 is a vertical cross-sectional view of the ink cartridge 30 and the cartridge
attachment section 110 according to the embodiment, and illustrating a state where
the ink cartridge 30 is completely attached to the cartridge attachment section 110;
and
Fig. 10 is a vertical cross-sectional view of the ink cartridge 30 and the cartridge
attachment section 110, and illustrating a state where the ink cartridge 30 is being
removed from the cartridge attachment section 110.
[0009] A printer 10 according to one embodiment of the disclosure will be described with
reference to Figs. 1 through 10.
< Overall Structure of Printer 10 >
[0010] As illustrated in Fig. 1, the printer 10 is configured to selectively discharge ink
droplets onto recording sheets to record images thereon based on an inkjet recording
scheme. The printer 10 includes a cartridge attachment section 110 to which an ink
cartridge 30 is detachably attachable. In the present embodiment, four of the ink
cartridges 30 corresponding to respective colors of cyan, magenta, yellow, and black
can be attached to the cartridge attachment section 110. The cartridge attachment
section 110 and ink cartridge 30 constitute a system of the present disclosure.
[0011] In the following description, a direction in which the ink cartridge 30 is inserted
into and attached to the cartridge attachment section 110 is defined as an frontward
direction 51. That is, the frontward direction 51 is coincident with an insertion
direction of the ink cartridge 30 into the cartridge attachment section 110. A direction
opposite to the frontward direction 51, i.e., a direction in which the ink cartridge
30 is removed from the cartridge attachment section 110 is defined as a rearward direction
52. Th frontward direction 51 and rearward direction 52 are parallel to a horizontal
direction orthogonal to the gravitational direction and parallel to the insertion
direction of the ink cartridge 30 in the present embodiment. Hence, the frontward
direction 51 and rearward direction 52 cross the gravitational direction.
[0012] Further, the gravitational direction is defined as a downward direction 53, and a
direction opposite to the gravitational direction is defined as an upward direction
54. Still further, as illustrated in Fig. 2, directions orthogonal to the frontward
direction 51 and rearward direction 52 are defined as a rightward direction 55 and
a leftward direction 56, respectively. More specifically, assuming that the ink cartridge
30 has been completely attached to the cartridge attachment section 110, the direction
orienting toward the right is defined as the rightward direction 55, while the direction
orienting toward the left is defined as the leftward direction 56 when the ink cartridge
30 is viewed from a rear side thereof in the frontward direction 51.
[0013] Hereinafter, the frontward direction 51 and rearward direction 52 may also be collectively
referred to as a front-rear direction; the upward direction 54 and downward direction
53 may also be collectively referred to as an up-down direction; and the rightward
direction 55 and leftward direction 56 may also be collectively referred to as a left-right
direction, whenever appropriate.
[0014] A posture of the ink cartridge 30 during the insertion into the cartridge attachment
section 110 and upon attachment to the cartridge attachment section 110 will be defined
as an upright posture. That is, the ink cartridge 30 is in the uptight posture while
the ink cartridge 30 is attached to the cartridge attachment section 110.
[0015] In the present disclosure, the expression "facing frontward" denotes facing in a
direction including a frontward component, and the expression "facing rearward" denotes
facing in a direction including a rearward component.
[0016] Referring to Fig 1, the printer 10 also includes a recording head 21, four ink tubes
20, and a controller 1, in addition to the cartridge attachment section 110. The four
ink tubes 20 are connected to the cartridge attachment section 110 and the recording
head 21. Ink stored in each ink cartridge 30 is configured to be supplied to the recording
head 21 through a corresponding one of the ink tubes 20 while the ink cartridge 30
is attached to the cartridge attachment section 110.
[0017] The cartridge attachment section 110 has one surface in which an opening 112 is formed.
The ink cartridges 30 are inserted into the cartridge attachment section 110 or removed
from the cartridge attachment section 110 through the opening 112. Fig. 1 depicts
a state where one ink cartridge 30 has been completely attached to the cartridge attachment
section 110. The ink cartridge 30 in Fig. 1 will be referred to as an "attached state".
Fig. 9 also depicts the attached state of the ink cartridge 30 to the cartridge attachment
section 110.
[0018] That is, the ink cartridge 30 is inserted in the frontward direction 51 into the
cartridge attachment section 110 through the opening 112 to be attached to the cartridge
attachment section 110. The ink cartridge 30 is removed in the rearward direction
52 from the cartridge attachment section 110 through the opening 112 to be detached
from the cartridge attachment section 110.
[0019] The respective ink cartridges 30 store ink to be used in the printer 10. In the attached
state of the ink cartridge 30 to the cartridge attachment section 110, the ink cartridge
30 is connected to the recording head 21 via a corresponding one of the ink tubes
20. The recording head 21 includes four sub-tanks 28 corresponding to the four ink
cartridges 30. Each sub-tank 28 is configured to temporarily store the ink supplied
from the corresponding ink cartridge 30 through the corresponding ink tube 20.
[0020] The recording head 21 is configured to selectively discharge the ink supplied from
the respective sub-tanks 28 through nozzles 29 according to an inkjet recording scheme.
Specifically, the recording head 21 includes a head control board (not illustrated)
and a plurality of piezoelectric elements 29A provided in one-to-one correspondence
with the nozzles 29. The head control board is configured to selectively apply drive
voltages to respective piezoelectric elements 29A to eject the ink through the nozzles
29.
[0021] The printer 10 includes a sheet feeding tray 15, a sheet feeding roller 23, a pair
of conveying rollers 25, a platen 26, a pair of discharge rollers 27, and a sheet
discharge tray 16. A recording sheet is fed from the sheet feeding tray 15 to a conveying
path 24 by the sheet feeding roller 23, and is then conveyed onto the platen 26 by
the pair of conveying rollers 25. The recording head 21 selectively discharges ink
onto the recording sheet that passes over the platen 26 to form an image on the recording
sheet. The recording sheet that has moved past the platen 26 is finally discharged
by the pair of discharge rollers 27 onto the sheet discharge tray 16 positioned most
downstream in the conveying path 24.
< Ink Cartridge 30 >
[0022] The ink cartridge 30 shown in Figs. 2 and 3 is a container for storing ink. The ink
cartridge 30 has a space formed therein that serves as an ink chamber 36 for storing
ink. The ink chamber 36 of the present embodiment is defined by a housing 31 that
constitutes an exterior of the ink cartridge 30. However, the ink chamber 36 may be
formed by an inner frame that is a separate member from the housing 31, for example.
[0023] The ink cartridge 30 has a generally flattened shape whose dimension in the left-right
direction is smaller than dimensions in the up-down direction and front-rear direction.
[0024] The ink cartridge 30 includes the housing 31 of a generally rectangular parallelepiped
shape. The housing 31 need not be a rectangular parallelepiped shape, but may have
a tridimensional shape configured of flat planes and/or curved planes. The housing
31 constitutes an external contour of the ink cartridge 30.
[0025] The housing 31 includes a front wall 40, a rear wall 42, a top wall 39, a bottom
wall 41, a side wall 37, and a side wall 38.
[0026] The front wall 40 is a wall that faces frontward when the ink cartridge 30 is inserted
into and attached to the cartridge attachment section 110. The rear wall 42 is a wall
that faces rearward when the ink cartridge 30 is inserted into and attached to the
cartridge attachment section 110. The front wall 40 and rear wall 42 are spaced apart
from each other in the front-rear direction.
[0027] The side wall 37 connects a right end of the front wall 40 to a right end of the
rear wall 42. The side wall 38 connects a left end of the front wall 40 to a left
end of the rear wall 42. The top wall 39 connects an upper end of the front wall 40
to an upper end of the rear wall 42. The bottom wall 41 connects a lower end of the
front wall 40 to a lower end of the rear wall 42.
[0028] The ink chamber 36 is defined by the front wall 40, the rear wall 42, the side wall
37, the side wall 38, the top wall 39, and the bottom wall 41. The ink chamber 36
stores ink therein.
[0029] In the upright posture of the ink cartridge 30, a direction from the rear wall 42
toward the front wall 50 is coincident with the frontward direction 51; a direction
from the front wall 40 toward the rear wall 42 is coincident with the rearward direction
52; a direction from the top wall 39 toward the bottom wall 41 is coincident with
the downward direction 53; a direction from the bottom wall 41 toward the top wall
39 is coincident with the upward direction 54; a direction from the side wall 38 toward
the side wall 37 is coincident with the rightward direction 55; and a direction from
the side wall 37 toward the side wall 38 is coincident with the leftward direction
56.
[0030] On a lower end portion of the front wall 40, an ink supply portion 34 is provided.
The ink supply portion 34 has a cylindrical outer shape and protrudes frontward (in
the frontward direction 51) from the front wall 40. The ink supply portion 34 has
a protruding end in which an ink supply opening 71 is formed.
[0031] The ink supply portion 34 defines an internal space serving as an ink passage 72.
The ink passage 72 extends in the front-rear direction. The ink passage 72 has a front
end in communication with the outside of the housing 31 through the ink supply opening
71. The ink passage 72 has a rear end in fluid communication with the ink chamber
36.
[0032] A valve 70 and a coil spring 73 are disposed within the ink passage 72. The valve
70 is movable in the front-rear direction so as to open and close the ink supply opening
71. The valve 70 is urged frontward toward the ink supply opening 71 by the coil spring
73. Thus, the ink supply opening 71 is normally closed by the valve 70 due to an urging
force of the coil spring 73.
[0033] When the ink cartridge 30 is attached to the cartridge attachment section 110, an
ink needle 117 (see Fig. 4) provided at the cartridge attachment section 110 is inserted
into the ink supply opening 71, thereby pushing the valve 70 rearward to move away
from the ink supply opening 71 against the urging force of the coil spring 73. In
this way, the ink supply opening 71 is opened, so that the ink in the ink chamber
36 can flow, through the ink passage 72, into the ink needle 117 provided at the cartridge
attachment section 110.
[0034] Incidentally, the ink supply opening 71 may not necessarily be opened and closed
by the valve 70. As an alternative, for example, the ink supply opening 71 may be
covered by a film. In this case, when the ink cartridge 30 is attached to the cartridge
attachment section 110, the ink needle 117 pierces through the film to open the ink
supply opening 71. Further, although not provided in the present embodiment, an air
communication port may be formed in the housing 31 to bring the ink chamber 36 maintained
at a negative pressure into an ambient pressure.
[0035] As illustrated in Figs. 2 and 3, a board supporting portion 84 is provided on an
upper surface of the top wall 39 of the housing 31. The board supporting portion 84
has a substantially rectangular parallelepiped shape. The board supporting portion
84 is mounted on the upper surface of the top wall 39. The board supporting portion
84 protrudes upward from the upper surface of the top wall 39.
[0036] The board supporting portion 84 may be integrally formed with the top wall 39 or
may be formed as a separate member from the top wall 39. Still alternatively, the
board supporting portion 84 may have a shape other than the rectangular parallelepiped
shape.
[0037] The board supporting portion 84 has a front inclined surface 84A, a rear inclined
surface 84B, and an upper surface 84C.
[0038] The front inclined surface 84A extends from the upper surface 84C to slope downward
toward the front. That is, the front inclined surface 84A is inclined downward toward
downstream in the insertion direction of the ink cartridge 30. Hence, in the attached
state of the ink cartridge 30 to the cartridge attachment section 110 (depicted in
Fig, 9), the front inclined surface 84A is sloped to extend away from a bottom surface
58A of a top wall 58 constituting a holder 101 of the cartridge attachment section
110 (Fig. 4) toward downstream in the insertion direction of the ink cartridge 30.
[0039] The rear inclined surface 84B extends from the upper surface 84C to slope downward
toward the rear. That is, the rear inclined surface 84B is inclined downward toward
upstream the insertion direction of the ink cartridge 30. Hence, in the attached state
of the ink cartridge 30 to the cartridge attachment section 110 (depicted in Fig,
9), the rear inclined surface 84B is sloped to extend away from the bottom surface
58A of the top wall 58 of the holder 101 (Fig. 4) toward upstream in the insertion
direction of the ink cartridge 30.
[0040] On the upper surface 84C of the board supporting portion 84, a circuit board 85 is
attached by a well-known method, such as adhesion or mating. That is, the board supporting
portion 84 supports the circuit board 85.
[0041] As illustrated in Fig. 2, four electrodes 86 are formed on an upper surface of the
circuit board 85. The electrodes 86 each extend in the front-rear direction. The electrodes
86 are arranged in separation from one another in the front-rear direction. The electrodes
86 are a clock electrode, a data electrode, a power-receiving electrode, and a ground
electrode, for example. A memory electrically-connected to each electrode 86 (not
illustrated) is also mounted on the circuit board 85. The memory stores data indicative
of information on the ink cartridge 30 (for example, a lot number and a date of production
thereof) as well as information on ink (for example, a color of ink). The information
stored in the memory is electrically retrievable through external access thereto.
Incidentally, the number of electrodes is not limited to four.
< Cartridge Attachment Section 110 >
[0042] As illustrated in Fig. 4, the cartridge attachment section 110 includes: the holder
101; and four sets of a joint portion 103, a substrate 64, and a connector 125.
[0043] The holder 101 constitutes an outer shell of the cartridge attachment section 110.
The holder 101 has a general box shape. The holder 101 defines an internal space 108
therein.
[0044] The holder 101 includes: an end wall 57, a bottom wall 59, the top wall 58, and a
pair of side walls 60.
[0045] The end wall 57 extends in the up-down direction and constitutes a front end portion
of the holder 101. The bottom wall 59 extends rearward from a bottom end portion of
the end wall 57. The top wall 58 extends rearward from an upper end portion of the
end wall 57 and is spaced part from the bottom wall 59 in the up-down direction. The
respective side walls 60 extend rearward from right and left end portions of the end
wall 57. Specifically, the side wall 60 extending from the right end portion of the
end wall 57 is connected to respective right end portions of the bottom wall 59 and
top wall 58. The side wall 60 extending from the left end portion of the end wall
57 is connected to respective left end portions of the bottom wall 59 and top wall
58. Thus, the side walls 60 are spaced apart from each other in the left-right direction
and respectively connected to the top wall 58 and bottom wall 59.
[0046] The holder 101 has a rear end portion formed with the opening 112. Thus, the opening
112 opposes the end wall 57 in the front-rear direction. The opening 112 is in communication
with the internal space 108 of the holder 101. A user faces the opening 112 in an
attempt to use the printer 10. The ink cartridge 30 is allowed to be inserted frontward
into the internal space 108 of the holder 101 through the opening 112.
[0047] The internal space 108 is defined by the end wall 57, bottom wall 59, top wall 58,
and side walls 60. The internal space 108 is partitioned into four individual chambers
by non-illustrated partitioning walls. A set of the joint portion 103, substrate 64
and connector 125 is provided for each one of the four chambers of the internal space
108. In other words, four joint portions 103, four boards 64 and four connectors 125
are provided at the holder 101 of the cartridge attachment section 110. The four ink
cartridges 30 corresponding to the four colors of cyan, magenta, yellow and black
can be received in the respective four chambers of the internal space 108 in the holder
101 of the cartridge attachment section 110.
[0048] Incidentally, the number of chambers formed in the internal space 108 need not be
limited to four. Hence, the number of the ink cartridges 30, and the number of the
set of the joint portion 103, substrate 64 and connector 125 may be determined in
response to the number of the chambers provided in the internal space 108 of the holder
101.
[0049] Hereinafter, for simplifying the explanation, detailed description will be made only
on a configuration in one of the four chambers in the internal space 108 of the cartridge
attachment section 110.
[0050] The joint portion 103 is provided at a lower end portion of the end wall 57. The
joint portion 103 is provided at a position corresponding to the ink supply portion
34 of the ink cartridge 30 accommodated in the corresponding chamber in the holder
101 of the cartridge attachment section 110, i.e., the ink supply portion 34 of the
ink cartridge 30 in the attached state.
[0051] The joint portion 103 includes the ink needle 117, and a retention groove 116. The
ink needle 117 is formed of resin having a tubular configuration. The ink needle 117
penetrates the end wall 57 of the holder 101 in the front-rear direction to provide
communication between interior and exterior of the holder 101. The ink needle 117
has an outer end that is positioned outside the holder 101, and the outer end is connected
to the corresponding ink tube 20. The ink tube 20 connected to the ink needle 117
extends out to the recording head 21 of the printer 10 to allow ink to be supplied
to the recording head 21. The ink tube 20 is not illustrated in Fig. 4.
[0052] The retention groove 116 is a cylindrical-shaped groove formed in a rear surface
57A of the end wall 57. The ink needle 117 is disposed at a diametrical center portion
of the retention groove 116. As illustrated in Fig. 9, upon attachment of the ink
cartridge 30 to the cartridge attachment section 110, the ink supply portion 34 is
inserted in the retention groove 116. At this time, an outer circumferential surface
of the cylindrical-shaped ink supply portion 34 comes in contact with a cylindrical-shaped
inner circumferential surface of the retention groove 116. When the ink supply portion
34 is inserted in the retention groove 116, the ink needle 117 is inserted in the
ink supply opening 71 of the ink supply portion 34. The ink stored in the ink chamber
36 can thus flow out therefrom into an internal space of the ink needle 117. In this
way, the ink flowing out from the ink chamber 36 is supplied to the recording head
21 through the ink needle 117 and the ink tube 20.
[0053] As illustrated in Fig. 4, the substrate 64 is provided at the top wall 58 of the
holder 101. In the present embodiment, the substrate 64 is supported on the bottom
surface 58A of the substrate 64. The bottom surface 58A of the top wall 58 extends
in the front-rear direction and the left-right direction. The bottom surface 58A extends
rearward from the rear surface 57A of the end wall 57 and defines an upper edge of
the internal space 108. A rear edge of the bottom surface 58A defines an upper edge
of the opening 112. The bottom surface 58A extends in the insertion direction of the
ink cartridge 30. The bottom surface 58A of the top wall 58 is an example of a first
surface of the disclosure.
[0054] Although not illustrated in the drawings, the substrate 64 is fixed to the top wall
58 by a well-known method, such as screw-fixing. The substrate 64 is electrically
connected to the controller 1 through a cable 5. The controller 1 is configured of
a CPU, a memory and the like, and is configured to control various operations of the
printer 10.
[0055] As described earlier, the four boards 64 are provided one each for corresponding
one of the four chambers in the internal space 108 of the holder 101. Thus, each one
of the four connectors 125 is mounted on corresponding one of the substrates 64. However,
the substrate 64 may be arranged differently from the present embodiment. For example,
a single substrate 64 may be provided across the four chambers in the internal space
108 of the holder 101. In this case, four of the connectors 125 may be mounted on
the single substrate 64.
< Connector 125 >
[0056] As illustrated in Fig. 4, the connector 125 is mounted on a lower surface of the
substrate 64.
[0057] The connector 125 is arranged at such a position that the connector 125 is located
above and in opposition to the circuit board 85 of the ink cartridge 30 in the attached
state (when the ink cartridge 30 has been completely attached to the cartridge attachment
section 110), as illustrated in Fig. 9.
[0058] As illustrated in Figs. 4 and 5, the connector 125 includes a housing 126, four conductive
members 128, and a movable member 130. The conductive members 128 and movable member
130 are respectively supported by the housing 126.
[0059] The housing 126 has a substantially rectangular parallelepiped shape. The housing
126 is fixed to the substrate 64 through a well-known technique, such as screw-fixing.
The housing 126 is thus supported by the bottom surface 58A of the top wall 58 via
the substrate 64.
[0060] Note that a lower surface of the substrate 64 serves to define the upper edge of
the internal space 108 together with the bottom surface 58A of the top wall 58. Hence,
the lower surface of the substrate 64 constitutes part of the first surface of the
disclosure.
[0061] The housing 126 has a top surface 151, a bottom surface 153, and a front side surface
152. The housing 126 is formed with four slits 154 in one-to-one correspondence with
the four electrodes 86 of the ink cartridge 30. The slits 154 are arrayed in the left-right
direction. Each slit 154 extends from the top surface 151 to the bottom surface 153
through the front side surface 152 of the housing 126. The number of the slits 154
need not be four, but may be determined in response to the number of the electrodes
of a corresponding ink cartridge.
[0062] As illustrated in Fig. 4, each slit 154 has a generally U shape that is open rearward
in a side view. Specifically, each slit 154 is configured of three spaces: a front
space 154A; an upper space 154B; and a lower space 154C.
[0063] The front space 154A is provided by a notched portion that is recessed rearward from
the front side surface 152. The upper space 154B is provided by a notched portion
that is recessed downward from the top surface 151. The lower space 154C is provided
by a notched portion that is recessed upward from the bottom surface 153.
[0064] The housing 126 has an inner surface 127 that defines a rear edge of the front space
154A. The inner surface 127 is formed with a depressed portion 129 that is depressed
rearward therefrom.
[0065] As illustrated in Fig. 5, the connector 125 includes the four conductive members
128 in one-to-one correspondence with the four electrodes 86 of the ink cartridge
30. As illustrated in Figs. 4 and 5, the four conductive members 128 are respectively
accommodated in the four slits 154 of the housing 126. That is, the conductive members
128 are arrayed to be spaced apart from one another in the left-right direction. The
number of the conductive members 128 need not be four.
[0066] Each conductive member 128 is an elongated electrical conductor. Each conductive
member 128 is resiliently deformable in the up-down direction and left-right direction.
Each conductive member 128 has a generally U shape that is open rearward in a side
view, in conformance with the cross-sectional shape of the corresponding slit 154.
[0067] Each conductive member 128 includes a support portion 131, a first extension portion
132, and a second extension portion 133. The support portion 131 and second extension
portion 133 are an example of a leaf spring portion.
[0068] The support portion 131 is a portion corresponding to a curved portion of the U shape
of the conductive member 128. The support portion 131 is accommodated in the front
space 154A of the corresponding slit 154. The support portion 131 extends generally
in the up-down direction. The support portion 131 has a center portion in the up-down
direction that is formed with a protruding part 134. The protruding part 134 protrudes
rearward from the center portion of the support portion 131. The protruding part 134
is fitted in the depressed portion 129 of the housing 126. The support portion 131
is thus supported by the housing 126 by the fitting of the protruding part 134 with
the depressed portion 129. Incidentally, the support portion 131 may be fixed to the
housing 126 through means other than fitting, such as adhesion.
[0069] The first extension portion 132 extends generally rearward from an upper end of the
support portion 131. The first extension portion 132 is accommodated in the upper
space 154B of the corresponding slit 154.
[0070] The first extension portion 132 has a rear end portion on which a contact 135 is
provided. The contact 135 protrudes upward from the rear end portion of the first
extension portion 132. The contact 135 is solder-mounted on the substrate 64. In this
way, each conductive member 128 is electrically connected to the controller 1 via
wiring patterns on the substrate 64 and the cable 5. The contact 135 may be mounted
on the substrate 64 through arbitrary means other than soldering. For example, the
contact 135 may be mounted on the substrate 64 by through-hole mounting or surface
mounting.
[0071] The second extension portion 133 extends generally rearward from a lower end of the
support portion 131. The second extension portion 133 is accommodated in the lower
space 154C of the corresponding slit 154.
[0072] The second extension portion 133 extends in the front-rear direction and has a rear
end 133A. The rear end 133A is a free end portion that is not in contact with any
other part or component. The rear end 133A is positioned rearward relative to the
protruding part 134 of the support portion 131. The conductive member 128 is resiliently
deformable, as described earlier. Accordingly, the second extension portion 133 is
resiliently deformable in the up-down direction and left-right direction, within the
lower space 154C in the housing 126, with the protruding part 134 of the support portion
131 serving as a fulcrum. That is, the second extension portion 133 (a rear end portion
thereof including the rear end 133A) is movable in the up-down direction and left-right
direction due to resiliency thereof. In the present embodiment, the second extension
portion 133 is supported by the housing 126 such that the second extension portion
133 (the rear end portion thereof) is movable in a prescribed direction crossing the
bottom surface 58A of the top wall 58, i.e., in a direction toward diagonally upward
and rearward, when contacted by the ink cartridge 30.
[0073] Incidentally, the second extension portion 133 may be movable in any direction crossing
the bottom surface 58A of the top wall 58. For example, the second extension portion
133 may be movable in a direction orthogonal to the bottom surface 58A of the top
wall 58, i.e., vertically.
[0074] Specifically, the second extension portion 133 (specifically, the rear end portion
of the second extension portion 133) is movable between a lower position (illustrated
in Fig. 6) and an upper position higher than the lower position (illustrated in Fig.
7). The lower position is an example of a remote position, and the upper position
is an example of a proximate position.
[0075] The second extension portion 133 is at the lower position without application of
any external force, as illustrated in Fig. 6.
[0076] The second extension portion 133 is lifted upward by the movable member 130 as will
be described later, thereby moving from the lower position to the upper position due
to the resiliency thereof, as illustrated in Fig. 7. The second extension portion
133 (rear end portion thereof) is positioned closer to the bottom surface 58A of the
top wall 58 at the upper position than at the lower position.
[0077] The second extension portion 133 includes a contact 138. The contact 138 protrudes
downward from a generally intermediate portion of the second extension portion 133.
The contact 138 is positioned frontward of the rear end 133A of the second extension
portion 133. In other words, the free end portion (rear end 133A) of the second extension
portion 133 is positioned upstream of the contact 138 in the insertion direction of
the ink cartridge 30. The contact 138 is also positioned rearward of the protruding
part 134. That is, the support portion 131 is supported by and fixed to the housing
126 at a position downstream of the contact 138 in the insertion direction of the
ink cartridge 30.
[0078] The contact 138 protrudes further downward relative to the bottom surface 153 of
the housing 126. A lower end of the contact 138 in the holder 101 while the ink cartridge
30 is detached from the holder 101 is positioned further downward relative to an upper
edge of each electrode 86 on the circuit board 85 of the ink cartridge 30 while the
ink cartridge 30 is attached to the holder 101. In the attached state of the ink cartridge
30 to the holder 101, the contact 138 of the second extension portion 133 of each
conductive member 128 is in contact with the corresponding one of the four electrodes
86 on the circuit board 85 of the ink cartridge 30. The respective contacts 138 of
the connector 125 are thus electrically connected to the respective electrodes 86
of the corresponding ink cartridge 30.
[0079] Since the contact 138 is provided at the second extension portion 133, the contact
138 is positioned higher while the second extension portion 133 is at the upper position
than at the lower position.
[0080] As illustrated in Fig. 4, the housing 126 is further formed with an internal space
155. The internal space 155 is positioned rearward of the respective slits 154. The
internal space 155 is in communication with an opening 156 formed in the bottom surface
153 of the housing 126, as illustrated in Figs 4 and 5. The opening 156 is also in
communication with the respective lower spaces 154C of the four slits 154. The housing
126 has an inner surface 155A that defines an upper edge of the internal space 155
(see Fig. 4).
[0081] The housing 126 further includes a pair of protrusions 157. The protrusions 157 protrudes
inward one each from inner surfaces of respective right and left side walls of the
housing 126. The inner surfaces of the right and left side walls of the housing 126
respectively define right and left edges of the opening 156 on the bottom surface
153. The protrusions 157 are positioned adjacent to the bottom surface 153.
[0082] As illustrated in Fig. 4, the movable member 130 is accommodated in the internal
space 155 of the housing 126. The movable member 130 is thus positioned rearward of
the conductive members 128 in the housing 126. To be more precise, at least a portion
of the movable member 130 (a portion other than a front end portion that is positioned
below the rear end portion of the second extension portion 133 of the conductive member
128) is positioned rearward of the conductive member 128. In other words, at least
a portion of the movable member 130 is positioned upstream of the deformable rear
end portion of the second extension portion 133 of the conductive member 128 in the
insertion direction of the ink cartridge 30.
[0083] The movable member 130 is a polyhedron having a general L shape in a side view. The
movable member 130 has a lower end portion that is positioned below the bottom surface
153 of the housing 126.
[0084] The movable member 130 has a top surface configured of a first top surface 161, and
a second top surface 162. The first top surface 161 is positioned rearward and upward
relative to the second top surface 162.
[0085] The second top surface 162 is positioned below the rear end portion of the second
extension portion 133 of each conductive member 128. Here, the rear end portion of
the second extension portion 133 is a portion between the rear end 133A and the contact
138 in the second extension portion 133 of each conductive member 128.
[0086] The movable member 130 has a bottom surface configured of a front sloped surface
163, a rear sloped surface 164, and a horizontal surface 165.
[0087] The front sloped surface 163 constitutes a front end portion of the bottom surface
of the movable member 130. The front sloped surface 163 faces frontward, i.e., toward
downstream in the insertion direction of the ink cartridge 30. The front sloped surface
163 is sloped to extend downward toward the rear (i.e., toward upstream in the insertion
direction of the ink cartridge 30).
[0088] The rear sloped surface 164 constitutes a rear end portion of the bottom surface
of the movable member 130. The rear sloped surface 164 faces rearward, i.e., toward
upstream in the insertion direction of the ink cartridge 30. The rear sloped surface
164 is sloped to extend downward toward the front (i.e., toward downstream in the
insertion direction of the ink cartridge 30).
[0089] The horizontal surface 165 constitutes a center portion of the bottom surface of
the movable member 130. The horizontal surface 165 extends horizontally in the front-rear
direction to connect a rear edge of the front sloped surface 163 to a front edge of
the rear sloped surface 164. That is, the front sloped surface 163 extends from the
horizontal surface 165 to be sloped, relative to the horizontal surface 165, to extend
diagonally upward and frontward therefrom. The rear sloped surface 164 extends from
the horizontal surface 165 to be sloped, relative to the horizontal surface 165, to
extend diagonally upward and rearward therefrom.
[0090] The movable member 130 further includes a pair of protrusions 166. The protrusions
166 protrude outward in the left-right direction from respective left and right surfaces
of the movable member 130.
[0091] The movable member 130 is movable in the up-down direction (in the upward direction
54 as well as in the downward direction 53) within the internal space 155 of the housing
126.
[0092] As illustrated in Fig. 4, the protrusions 166 of the movable member 130 come into
contact with the protrusions 157 of the housing 126 from above inside the internal
space 155, thereby restricting further downward movement of the movable member 130.
The position of the movable member 130 illustrated in Fig. 4 will be referred to as
a lower restricted position. The movable member 130 is restricted from moving further
downward from the lower restricted position.
[0093] Further, upward movement of the movable member 130 is also restricted by abutment
of the first top surface 161 against the inner surface 155A of the housing 126 from
below. Although not shown in the drawings, the position of the movable member 130
whose first top surface 161 is in abutment with the inner surface 155A of the housing
126 will be referred to as an upper restricted position.
[0094] In this way, the movable member 130 is supported by the housing 126 such that the
movable member 130 is movable in the up-down direction, i.e., in a direction orthogonal
to the bottom surface 58A of the top wall 58 of the holder 101. Incidentally, the
movable member 130 need not be movable vertically, but may be movable in any direction
crossing the bottom surface 58A of the top wall 58. For example, the movable member
130 may be movable in a direction inclined frontward relative to the vertical direction
(up-down direction).
[0095] The movable member 130 is movable between a first position illustrated in Fig. 4
and a second position illustrated in Fig. 7.
[0096] As illustrated in Fig. 4, the movable member 130 is at the first position without
any application of external force thereto. In the first position, due to the self-weight
of the movable member 130, the protrusions 166 are in contact with the respective
protrusions 157 (of the housing 126) from above. That is, the first position of the
movable member 130 is coincident with the lower restricted position of the movable
member 130.
[0097] In the present embodiment, when the movable member 130 is at the first position,
the second top surface 162 of the movable member 130 opposes the rear end portion
of the second extension portion 133 from below in the up-down direction so as to be
spaced away therefrom. In other words, the movable member 130 faces the conductive
member 128 (second extension portion 133) such that the second top surface 162 is
positioned opposite the bottom surface 58A of the top wall 58 with respect to the
second extension portion 133 in the up-down direction.
[0098] The movable member 130 is moved to the second position above the first position (illustrated
in Fig. 7) by being lifted up by the board supporting portion 84 and circuit board
85 of the ink cartridge 30. That is, the movable member 130 is positioned closer to
the bottom surface 58A of the top wall 58 at the second position than at the first
position. Movement of the movable member 130 will be described later in details.
[0099] In the present embodiment, the second top surface 162 is in contact with the rear
end portion of the second extension portion 133 of the conductive member 128 from
below, while the movable member 130 is at the second position. Further, in the present
embodiment, as illustrated in Fig. 7, the first top surface 161 is spaced apart from
the inner surface 155A of the housing 126 in the up-down direction while the movable
member 130 is at the second position. In other words, the second position of the movable
member 130 is below the upper restricted position of the movable member 130. However,
the second position of the movable member 130 may be coincident with the upper restricted
position of the movable member 130.
< Operations for Attaching and Detaching Ink Cartridge 30 >
[0100] Hereinafter, operations for attaching and detaching the ink cartridge 30 relative
to the cartridge attachment section 110 will be described with reference to Figs.
6 through 10.
[0101] As illustrated in Fig. 4, prior to insertion of the ink cartridge 30 into the cartridge
attachment section 110, the movable member 130 is at the first position due to its
self-weight, and the second extension portion 133 of the conductive member 128 is
at its lower position.
[0102] For attachment of the ink cartridge 30, the ink cartridge 30 is inserted forward
into the holder 101 to come inside the corresponding chamber in the internal space
108 of the holder 101. At this time, as illustrated in Fig. 6, the board supporting
portion 84 of the ink cartridge 30 (specifically, the front inclined surface 84A of
the board supporting portion 84) is brought into contact with the connector 125 of
the cartridge attachment section 110 (specifically, the rear sloped surface 164 of
the movable member 130) from a rear side thereof (from upstream in the insertion direction
of the ink cartridge 30).
[0103] As the ink cartridge 30 is inserted further forward (deeper inside the internal space
108 of the holder 101) from the state of Fig. 6, the rear sloped surface 164 of the
movable member 130 is pressed by the front inclined surface 84A of the board supporting
portion 84 of the ink cartridge 30, thereby moving the movable member 130 upward to
a position depicted in Fig. 7. That is, the movable member 130 is moved from the first
position to the second position. Due to the upward movement of the movable member
130 to the second position from the first position, the second top surface 162 of
the movable member 130 is brought into contact with the rear end portion of each second
extension portion 133 from below, pushing the rear end portion of each second extension
portion 133 upward. Each second extension portion 133 is thus moved to the upper position
from the lower position when pushed upward by the movable member 130. The contact
138 on each second extension portion 133 is moved upward accordingly. In this way,
each second extension portion 133 at the lower position is moved to the upper position
in association with the movement of the movable member 130 from the first position
to the second position.
[0104] As the ink cartridge 30 is inserted further forward inside the internal space 108
of the holder 101 from the state of Fig. 7, part of the board supporting portion 84
and circuit board 85 (a front portion thereof) comes to a position vertically below
the contact 138 of each conductive member 128, as illustrated in Fig. 8. At this time,
the since the contact 138 has been moved upward in accordance with the upward movement
of the corresponding second extension portion 133 from the lower position, a lower
edge of each contact 138 is positioned higher than upper edges of the board supporting
portion 84 and circuit board 85 of the inserted ink cartridge 30. Accordingly, the
contacts 138 are separated upward away from the board supporting portion 84 and the
circuit board 85. Note that, at this time, a rear end portion of the circuit board
85 abuts on the movable member 130 from below, so that the movable member 130 is maintained
at the second position. The movable member 130 at the second position in turn serves
to maintain each second extension portion 133 at its upper position.
[0105] As the ink cartridge 30 is inserted further forward inside the internal space 108
of the holder 101 from the state of Fig. 8, the board supporting portion 84 and circuit
board 85 move past the movable member 130 and come to a position forward of and in
separation from the movable member 130, as illustrated in Fig. 9. That is, the board
supporting portion 84 and circuit board 85 are positioned downstream of the movable
member 130 in the insertion direction of the ink cartridge 30. Accordingly, the movable
member 130 moves downward due to its self-weight, i.e., from the second position to
the first position.
[0106] In accordance with the downward movement of the movable member 130 from the second
position to the first position, the second top surface 162 thereof moves downward
to be separated away from the rear end portion of each second extension portion 133.
Each second extension portion 133 moves from the upper position to the lower position
due to its own resiliency, which also moves each contact 138 downward. That is, each
second extension portion 133 at the upper position moves to the lower position in
association with the movement of the movable member 130 from the second position to
the first position.
[0107] Further, in the state of Fig. 9, the electrodes 86 of the circuit board 85 are located
vertically below the corresponding contacts 138. The contacts 138 come into contact
with the electrodes 86 from above, in accordance with the movement of the second extension
portion 133 from the upper position to the lower position. The contacts 138 of the
connector 125 and the electrodes 86 of the ink cartridge 30 are thus electrically
connected to each other.
[0108] Here, as described above, the lower edge of each contact 138 before insertion of
the ink cartridge 30 into the holder 101 is positioned below the upper edge of the
corresponding electrode 86 on the circuit board 85 of the ink cartridge 30 inserted
inside the holder 101. Hence, in the state of Fig. 9, the electrodes 86 on the circuit
board 85 push the respective contacts 138 upward, thereby resiliently deforming the
respective second extension portions 133 upward. The electrodes 86 of the ink cartridge
30 and the corresponding contacts 138 of the connector 125 of the holder 101 are thus
electrically connected to each other.
[0109] Further, in the state of Fig. 9, the ink supply portion 34 is in contact with and
received in the retention groove 116 of the holder 101. The ink needle 117 of the
holder 101 is thus inserted in the ink supply opening 71 of the ink supply portion
34 to be in fluid communication with the ink passage 72 in the ink supply portion
34. The valve 70 is pushed by the inserted ink needle 117 to be separated away from
the ink supply opening 71 against an urging force of the coil spring 73 inside the
ink passage 72. The ink stored in the ink chamber 36 is thus allowed to flow, out
of the ink chamber 36, into the ink passage 72, the ink needle 117, the corresponding
ink tube 20, and then into recording head 21.
[0110] Further, in the state of Fig. 9, a tip end portion of the ink supply portion 34 is
in contact with the retention groove 116 from a rear side thereof. Hence, the ink
cartridge 30 can no longer move further forward in the insertion direction from the
position illustrated in Fig. 9. Attachment of the ink cartridge 30 to the holder 101
is now completed and the ink cartridge 30 is in its attached state. In the attached
state of the ink cartridge 30 to the cartridge attachment section 110, the movable
member 130 is at the first position due to the self-weight, and the contacts 138 and
the electrodes 86 are electrically connected to each other.
[0111] Although not shown in the drawings, the cartridge attachment section 110 and the
ink cartridge 30 are each provided with a retaining mechanism for retaining the attached
state of the ink cartridge 30 to the cartridge attachment section 110. A user may
manipulate the retaining mechanism(s) to realize detachment of the attached ink cartridge
30 from the cartridge attachment section 110.
[0112] For detachment of the ink cartridge 30 from the holder 101, the user may hold the
ink cartridge 30, release the retaining mechanism(s) to disengage the ink cartridge
30 from the holder 101, and pull the released ink cartridge 30 rearward.
[0113] The ink needle 117 is then removed from the ink supply portion 34 by the rearward
movement of the ink cartridge 30. The valve 70 is accordingly moved forward to close
the ink supply opening 71 due to the urging force (resilient force) of the coil spring
73.
[0114] Further, as illustrated in Fig. 10, the rear inclined surface 84B of the board supporting
portion 84 of the ink cartridge 30 is brought into contact with the front sloped surface
163 of the movable member 130 of the connector 125 from a front side thereof, i.e.,
from a downstream side in the insertion direction of the ink cartridge 30.
[0115] As the ink cartridge 30 is pulled out further rearward from the internal space 108
of the holder 101 from the state of Fig. 10, the front sloped surface 163 of the movable
member 130 is further pushed rearward by the rear inclined surface 84B of the board
supporting portion 84, thereby moving the movable member 130 as a whole upward, as
illustrated in Fig. 8. That is, the movable member 130 is moved to the second position
from the first position. In this way, just as in the insertion process of the ink
cartridge 30, each of the second extension portions 133 is moved to the upper position
from the lower position because the rear end portions of the second extension portions
133 are pushed upward by the second top surface 162 of the movable member 130. The
contacts 138 are also moved upward to be separated from the circuit board 85 of the
ink cartridge 30.
[0116] As the ink cartridge 30 is further pulled out rearward from the state of Fig. 8,
the board supporting portion 84 and the circuit board 85 move past the movable member
130, via the state of Fig. 7. The board supporting portion 84 and circuit board 85
finally come to a position rearward of the movable member 130 so as to be separated
away from the movable member 130. In this way, detachment of the ink cartridge 30
from the holder 101 is completed.
[0117] At this time, the board supporting portion 84 and circuit board 85 are positioned
upstream of the movable member 130 in the insertion direction of the ink cartridge
30. Hence, as illustrated in Fig. 6, the movable member 130 has moved to the first
position from the second position. Due to the movement of the movable member 130 from
the second position to the first position, the second extension portions 133 of the
connector 125 are each moved to the lower position from the upper position by the
resiliency thereof.
< Operational and Technical Advantages >
[0118] According to the present embodiment, the housing 126 of the connector 125 is supported
by the bottom surface 58A of the top wall 58 of the holder 101. Accordingly, the conductive
members 128 supported by the housing 126 are stable in position relative to the holder
101. In the connector 125, only the movable member 130 is configured as a movable
member, with the housing 126 supporting the conductive members 128 maintained immovable.
With this structure, there is no need to provide any other member (flexible flat cable,
for example) for connection of the housing 126 to the holder 101, preventing the structure
of the connector 125 from getting complicated.
[0119] Further, according to the present embodiment, the ink cartridge 30 is pushed in the
insertion direction to be inserted into the internal space 108 of the holder 101.
The ink cartridge 30 is pulled out to be remove from the internal space 108 of the
holder 101. Normally, applying a pushing force to the ink cartridge 30 is easier than
applying a pulling force to the ink cartridge 30.
[0120] In the present embodiment, in each conductive member 128, the support portion 131
is fixed to the housing 126 at a position forward of the contact 138; and the rear
end portion of the second extension portion 133 (the free end portion of the conductive
member 128) is positioned rearward of the contact 138. With this structure, resistance
applied to the ink cartridge 30 by the second extension portions 133 via the contacts
138 during the removal of the ink cartridge 30 from the holder 101 can be made smaller
than that during the insertion of the ink cartridge 30 into the holder 101. The resistance
applied to the ink cartridge 30 during the removal of the ink cartridge 30 from the
holder 101 is therefore restricted from getting excessively large.
[0121] In the present embodiment, the movable member 130 is configured to face each conductive
member 128 (the second extension portion 133) from below. Accordingly, the movable
member 130 (which is moving upward) can push the conductive member 128 upward to move
the conductive member 128 (the second extension portion 133) upward. This structure
of the embodiment can associate the movement of the conductive member 128 with the
movement of the movable member 130 through a simple structure.
[0122] Further, according to the embodiment, the movable member 130 is located at its first
position due to its own weight. That is, the movable member 130 can be situated at
the first position without using any urging member such as a spring, in a state where
no external force is applied to the movable member 130.
[0123] Further, according to the embodiment, the ink cartridge 30 comes into contact with
the rear sloped surface 164 of the movable member 130 from rearward thereof during
the insertion of the ink cartridge 30 into the holder 101. Due to the slope of the
rear sloped surface 164, the movable member 130 is applied with an upward force from
the ink cartridge 30, thereby easily moving upward when contacted by the ink cartridge
30 during the insertion of the ink cartridge 30 into the holder 101.
[0124] Further, according to the embodiment, the ink cartridge 30 comes into contact with
the front sloped surface 163 of the movable member 130 from frontward thereof during
the removal of the ink cartridge 30 from the holder 101. Due to the slope of the front
sloped surface 163, the movable member 130 is applied with an upward force from the
ink cartridge 30, thereby easily being lifted upward when contacted by the ink cartridge
30 during the removal of the ink cartridge 30 from the holder 101.
[0125] Further, according to the embodiment, the front inclined surface 84A of the board
supporting portion 84 of the ink cartridge 30 comes into contact with the movable
member 130 from rearward thereof to generate an upward force during the insertion
of the ink cartridge 30 into the holder 101. The movable member 130 is thus easily
moved upward by the upward force applied from the ink cartridge 30, when contacted
by the ink cartridge 30 during the insertion of the ink cartridge 30 into the holder
101.
[0126] Further, according to the embodiment, the rear inclined surface 84B of the board
supporting portion 84 of the ink cartridge 30 comes into contact with the movable
member 130 from frontward thereof to generate an upward force during the removal of
the ink cartridge 30 from the holder 101. The movable member 130 is thus easily moved
upward by the upward force applied from the ink cartridge 30, when contacted by the
ink cartridge 30 during the removal of the ink cartridge 30 from the holder 101.
< Modifications and Variations >
[0127] In the above-described embodiment, the second extension portion 133 of each conductive
member 128 extends rearward from the lower end of the support portion 131. However,
the second extension portion 133 may extends frontward, rather than rearward, from
the lower end of the support portion 131.
[0128] In the above-described embodiment, the first extension portion 132 of each conductive
member 128 extends rearward from the upper end of the support portion 131. However,
the second extension portion 133 may extends frontward, rather than rearward, from
the upper end of the support portion 131.
[0129] In the above-described embodiment, the conductive member 128 is an elongated electrically
conductive member having resiliency, so that the conductive member 128 (at least a
portion thereof, i.e., the second extension portion 133) is movable by the resiliency.
Alternatively, the conductive member 128 may be supported by the housing 126 such
that the conductive member 128 is slidable, just like the movable member 130, for
example. That is, an entirety of the conductive member 128 may be configured to move
relative to the housing 126. In this case, the conductive members 128 may be electrically
connected to the substrate 64 of the holder 101 via a flexible flat cable, for example.
[0130] Still further, an entirety of the movable member 130 may be positioned upstream of
an entirety of the conductive member 128 in the insertion direction, provided that
the movable member 130 can reliably come into contact with the second extension portion
133 of the conductive member 128 when contacted by the ink cartridge 30 during the
insertion of the ink cartridge 30 into the holder 101.
[0131] In the above-described embodiment, the second top surface 162 of the movable member
130 is located below the rear end portion of the second extension portion 133 of each
conductive member 128 so as to be spaced apart therefrom, while the movable member
130 is at the first position (see Fig. 6). However, the second top surface 162 of
the movable member 130 may contact the rear end portion of the second extension portion
133 of each conductive member 128 while the movable member 130 is at the first position.
[0132] The movable member 130 of the depicted embodiment is located at its first position
due to its own weight. Alternatively, the movable member 130 may be urged to be placed
at the first position by an urging member such as a spring, in a state where no external
force is applied to the movable member 130.
[0133] While the movable member 130 has the front sloped surface 163 and the rear sloped
surface 164 in the above-described embodiment, the movable member 130 may not have
these sloped surfaces 163 and 164. Further, the board supporting portion 84 of the
ink cartridge 30 of the depicted embodiment has the front inclined surface 84A and
the rear inclined surface 84B, the board supporting portion 84 may not have these
sloped surfaces 84A and 84B. However, in order to realize smooth upward movement of
the movable member 130 when contacted by the ink cartridge 30, it is preferable that
at least one of the movable member 130 and the board supporting portion 84 have a
sloped surface.
[0134] In the above-described embodiment, the housing 126 of the connector 125 is supported
by the top wall 58 (bottom surface 58A thereof) via the substrate 64. However, the
housing 126 may be directly supported by the bottom surface 58A of the top wall 58.
[0135] Still alternatively, the housing 126 of the connector 125 maybe supported by a wall
of the holder 101 other than the top wall 58, either directly or via the substrate
64. For example, the housing 126 may be supported by a surface of one of the pair
of side walls 60 (a left surface of the right side wall 60, for example) of the holder
101. In this case, the board supporting portion 84 of the ink cartridge 30 may be
supported by a right surface of the side wall 37 of the housing 31 to protrude rightward
therefrom. The circuit board 85 may be supported by a right surface (a protruding
end surface) of the board supporting portion 84. Note that, in this case, the movable
member 130 and the second extension portion 133 of each conductive member 128 may
be made movable in the left-right direction (in a direction perpendicular to the right
surface of the side wall 37), rather than in the up-down direction.
[0136] In the above-described embodiment, the ink cartridge 30 is configured to be inserted
into and removed from the cartridge attachment section 110 in the front-rear direction
(horizontally). Alternatively, the ink cartridge 30 may be configured to be inserted
into and removed from the cartridge attachment section 110 in the up-down direction
(vertically).
[0137] In the above-described embodiment, the printer 10 configured to record images on
recording sheets based on an inkjet recording scheme is described as an example of
a system configured of the ink cartridge 30 and the cartridge attachment section 110.
However, the system of the disclosure may be embodied as a printer configured to record
images on recording sheets based on another scheme, such as an electrophotographic
scheme; or as a label printer configured to record images on labels based on a thermal
transfer printing scheme. Still further, the system of the disclosure may be embodied
as an apparatus other than a printer, provided that a cartridge is electrically connected
to a cartridge accommodating device in a state where the cartridge is attached to
the cartridge accommodating device.
[0138] While the description has been made in detail with reference to the embodiment thereof,
it would be apparent to those skilled in the art that various changes and modifications
may be made therein without departing from the scope of the above-described embodiment.
[Remarks]
[0139] The ink cartridge 30 is an example of a cartridge. The cartridge attachment section
110 is an example of a cartridge accommodating device. The holder 101 is an example
of a holder. The internal space 108 is an example of an internal space. The bottom
surface 58A of the top wall 58 of the holder 101 is an example of a first surface.
The connector 125 is an example of a connector. The housing 126 of the connector 125
is an example of a housing. The conductive member 128 is an example of a conductive
member. The second extension portion 133 is an example of a portion of the conductive
member and an example of a leaf spring. The contact 138 is an example of a contact
of the conductive member. The movable member 130 is an example of a movable member.
The rear sloped surface 164 of the movable member 130 is an example of a first sloped
surface. The front sloped surface 163 of the movable member 130 is an example of a
second sloped surface. The substrate 64 is an example of a substrate. The internal
space 155 of the housing 126 is an example of an accommodation space. The protrusion
157 is an example of a housing protrusion. The protrusion 166 is an example of a protrusion
of the movable member. The electrodes 86 of the ink cartridge 30 are an example of
an electrical interface. The circuit board 85 is an example of a circuit board. The
board supporting portion 84 is an example of a board supporting portion. The front
inclined surface 84A of the board supporting portion 84 is an example of a first inclined
surface. The rear inclined surface 84B of the board supporting portion 84 is an example
of a second inclined surface.
1. Kartuschenaufnahmevorrichtung (110) zum abnehmbaren Aufnehmen einer Kartusche (30),
die eine elektrische Schnittstelle (86) beinhaltet, wobei die Kartuschenaufnahmevorrichtung
(110) aufweist:
einen Halter (101), der einen Innenraum (108) darin definiert und eine Öffnung (112)
aufweist, die mit dem Innenraum (108) kommuniziert, wobei die Kartusche konfiguriert
ist zum Einführen durch die Öffnung (112) in einer Einführrichtung (51) in den Innenraum
(108), wobei der Halter (101) eine erste Oberfläche (58A) aufweist, die einen Teil
des Innenraums (108) definiert, wobei die erste Oberfläche (58A) in der Einführrichtung
(51) verläuft, und
einen Konnektor (125), der sich an dem Halter (101) befindet, wobei der Konnektor
aufweist:
ein Gehäuse (126), das durch die erste Oberfläche (58A) gestützt wird;
ein leitendes Element (128), das eine Blattfeder (133) aufweist und einen Kontakt
(138) beinhaltet, der mit der elektrischen Schnittstelle (86) der Kartusche (30),
die in dem Halter (101) aufgenommen ist, elektrisch verbunden werden kann, wobei die
Blattfeder (133) ein festes Ende (131), das an dem Gehäuse (126) befestigt ist, und
ein freies Ende (133A), das relativ zu dem Gehäuse (126) zwischen einer entfernten
Position und einer nahen Position beweglich ist, aufweist, wobei die entfernte Position
in einer vorgegebenen Richtung näher an der ersten Oberfläche (58A) liegt als die
nahe Position, wobei die vorgegebene Richtung zu der ersten Oberfläche (58A) rechtwinklig
ist; und
ein bewegliches Element (130), das beweglich von dem Gehäuse (126) getragen ist und
zumindest einen Abschnitt (164) aufweist, der in der Einführrichtung (51) relativ
zu der Blattfeder (133) vorgelagert gelegen ist, wobei das bewegliche Element (130)
zwischen einer ersten Position und einer zweiten Position beweglich ist, wobei das
bewegliche Element (130) in der vorgegebenen Richtung an der zweiten Position näher
an der ersten Oberfläche (58A) gelegen ist als an der ersten Position,
wobei der Kontakt (138) in der vorgegebenen Richtung dann näher an der ersten Oberfläche
(58A) gelegen ist, wenn sich das freie Ende (133A) an der nahen Position befindet,
als wenn sich das freie Ende (133A) an der entfernten Position befindet,
wobei das bewegliche Element (130) so konfiguriert ist, dass es von der ersten Position
zu der zweiten Position bewegt wird, wenn der Abschnitt (164) des beweglichen Elements
(130) berührt wird von einer vorgelagerten Seite desselben in der Einführrichtung
(51) aus durch die Kartusche während des Einführens der Kartusche (30) in den Innenraum
(108) des Halters (101),
wobei das freie Ende (133A) so konfiguriert ist, dass es in Übereinstimmung mit der
Bewegung des beweglichen Elements (130) von der ersten Position auf die zweite Position
von der entfernten Position auf die nahe Position bewegt wird, und
dadurch gekennzeichnet, dass
das feste Ende (131) der Blattfeder (133) nachgelagert in der Einführrichtung (51)
relativ zu dem Kontakt (138) positioniert ist, und das freie Ende (133A) vorgelagert
in der Einführrichtung (51) relativ zu dem Kontakt (138) positioniert ist.
2. Kartuschenaufnahmevorrichtung (110) nach Anspruch 1, wobei das bewegliche Element
(130) eine Oberfläche (162) aufweist, die in der vorgegebenen Richtung im Verhältnis
zu dem freien Ende (133A) gegenüber der ersten Oberfläche (58A) positioniert ist und
die Oberfläche (162) des beweglichen Elements (130) dem freien Ende (133A) in der
vorgegebenen Richtung zugewandt ist.
3. Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 2, wobei die vorgegebene
Richtung eine vertikale Richtung ist, und
wobei das bewegliche Element (130) so konfiguriert ist, dass es aufgrund eines Eigengewichts
desselben ohne Ausüben einer externen Kraft an der ersten Position positioniert ist.
4. Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 3, wobei das bewegliche
Element (130) eine erste geneigte Oberfläche (164) aufweist, die in der Einführrichtung
nach hinten gerichtet ist, wobei die erste geneigte Oberfläche (164) so geneigt ist,
dass sie sich in der Einführrichtung von der ersten Oberfläche (58A) weg nach vorne
erstreckt, und
wobei die erste geneigte Oberfläche (164) konfiguriert ist, um durch die Kartusche
(30) von einer nachgelagerten Seite derselben in der Einführrichtung berührt zu werden.
5. Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 4, wobei das bewegliche
Element (130) eine zweite geneigte Oberfläche (163) aufweist, die in der Einführrichtung
(51) nach vorne gerichtet ist, wobei die zweite geneigte Oberfläche (163) so geneigt
ist, dass sie sich in der Einführrichtung von der ersten Oberfläche (58A) weg nach
hinten erstreckt, und
wobei die zweite geneigte Oberfläche (163) so konfiguriert ist, dass sie durch die
Kartusche (30) von einer Stromabwärtsseite derselben in der Einführrichtung (51) berührt
wird.
6. Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 5, ferner aufweisend
ein Substrat (64), das durch die erste Oberfläche (58A) des Halters (101) getragen
ist,
wobei der Konnektor (125) an dem Substrat (64) befestigt ist und mittels des Substrats
(64) durch die erste Oberfläche (58A) des Halters (101) getragen ist.
7. Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 6, wobei das Gehäuse
(126) darin einen Aufnahmeraum (155) zum beweglichen Aufnehmen des beweglichen Elements
(130) definiert, wobei das Gehäuse (126) ferner einen Gehäusevorsprung (157) aufweist,
der von einer inneren Oberfläche hervorragt, die den Aufnahmeraum (155) definiert,
und
wobei das bewegliche Element (130) einen Vorsprung (166) aufweist, wobei der Vorsprung
(166) so konfiguriert ist, dass er den Gehäusevorsprung (157) berührt, um das bewegliche
Element (130) an der ersten Position zu halten, ohne dass eine externe Kraft ausgeübt
wird.
8. System, aufweisend:
die Kartuschenaufnahmevorrichtung (110) nach einem der Ansprüche 1 bis 7; und
die Kartusche (30), die so konfiguriert ist, dass sie in den Innenraum (108) des Halters
(101) eingeführt und an der Kartuschenaufnahmevorrichtung (110) befestigt ist, wobei
die Kartusche (30) aufweist:
eine Schaltplatine (85), die die elektrische Schnittstelle (86) beinhaltet; und
einen Platinenhalteabschnitt (84), der die Schaltplatine (85) hält,
wobei
das bewegliche Element (130) an der ersten Position so konfiguriert ist, dass es in
der Einführrichtung (51) zu der zweiten Position bewegt wird, wenn es durch den Platinenhalteabschnitt
(84) der Kartusche (30) berührt wird, von einer hinteren Seite davon in der Einführrichtung;
das freie Ende (133A) so konfiguriert ist, dass es in Übereinstimmung mit der Bewegung
des beweglichen Elements (130) von der ersten Position zu der zweiten Position von
der entfernten Position zu der nahen Position bewegt wird;
das bewegliche Element (130) an der zweiten Position so konfiguriert ist, dass es
zu der ersten Position bewegt wird, nachdem sich der Platinenhalteabschnitt (84) in
der Einführrichtung an dem beweglichen Element (130) vorbei bewegt hat, während er
das bewegliche Element (130) berührt;
das freie Ende (133A) so konfiguriert ist, dass es in Übereinstimmung mit der Bewegung
des beweglichen Elements (130) von der zweiten Position zu der ersten Position von
der nahen Position auf die entfernte Position bewegt wird; und
der Kontakt (138) des leitenden Elements (128) so konfiguriert ist, dass er als Reaktion
auf die Bewegung des freien Endes (133A) von der nahen Position zu der entfernten
Position mit der elektrischen Schnittstelle (86) der Tintenkartusche (30) elektrisch
verbunden wird.
9. System nach Anspruch 8, wobei der Platinenhalteabschnitt (84) eine erste geneigte
Oberfläche (84A) aufweist, wobei die erste geneigte Oberfläche (84A) so geneigt ist,
dass sie in einem Zustand, bei dem die Kartusche in dem Innenraum (108) des Halters
(101) aufgenommen ist, in der Einführrichtung weg von der ersten Oberfläche (58A)
stromabwärts verläuft, und
wobei die erste geneigte Oberfläche (84A) so konfiguriert ist, dass sie an das bewegliche
Element (130) von einer hinteren Seite davon in der Einführrichtung anstößt.
10. System nach Anspruch 8 oder 9, wobei der Platinenhalteabschnitt (84) eine zweite geneigte
Oberfläche (84B) aufweist, wobei die zweite geneigte Oberfläche (84B) so geneigt ist,
dass sie in einem Zustand, bei dem die Kartusche (30) in dem Innenraum (108) des Halters
(101) aufgenommen ist, sich von der ersten Oberfläche (58A) weg in der Einführrichtung
(51) nach hinten erstreckt, und
wobei die zweite geneigte Oberfläche (84B) so konfiguriert ist, dass sie an das bewegliche
Element (130) von einer in der Einführrichtung (51) vorgelagerten Seite davon stößt.