JP2005212221A - Liquid ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of a contact portion of a mounting portion for mounting a liquid container provided with a storage means, and to facilitate the assembling work of this portion.
In a liquid ejecting apparatus that ejects liquid in a pressure chamber supplied from an ink cartridge as droplets from a nozzle opening due to pressure fluctuations caused by a pressure generating element, the ink cartridge is attached to a cartridge mounting portion for detachably mounting the ink cartridge. A contact conducting member 62 capable of conducting with respect to a contact conducted to the storage device is provided, and the contact conducting member 62 includes a device side contact 61 disposed on a surface along the attaching / detaching direction of the ink cartridge, and the device side contact. And the other end of the flexible cable having one end connected to the control device and connected to the conduction portion 68 of the contact conduction member 62.
[Selection] Figure 8

Description

  The present invention relates to a liquid ejecting apparatus that includes a container mounting portion on which a liquid container storing liquid therein is detachably mounted, and the liquid container includes storage means.

  The liquid ejecting apparatus includes an ejecting head capable of ejecting liquid as droplets, and ejects various liquids from the ejecting head. A typical example of the liquid ejecting apparatus is an image recording apparatus such as an ink jet printer that performs recording by ejecting and landing liquid ink on recording paper or the like as an ejection target. . In recent years, not only this image recording apparatus but also various identification information setting apparatuses have been applied. For example, in a display identification information setting device such as a liquid crystal display, a plasma display, an organic EL (Electro Luminescence) display, or an FED (surface emitting display), various liquid materials such as coloring materials and electrodes are used as pixel formation regions and A liquid ejecting apparatus is used as an apparatus for discharging to an electrode formation region or the like.

  Here, taking the above ink jet printer (hereinafter simply abbreviated as a printer) as an example, this printer has a plurality of nozzle rows in which nozzle openings communicating with the pressure chambers are arranged in a row, A control device such as a recording head having a pressure generating element for changing pressure and a drive signal generating / generating circuit for generating a drive signal to be supplied to the pressure generating element is provided. By driving the pressure generating element, ink is ejected from a nozzle opening. It is comprised so that it may discharge.

  A storage means is provided at the bottom of the ink cartridge storing liquid such as ink, and data such as ink type and remaining amount is stored in the storage means. The contact provided on the ink cartridge and the contact on the ink cartridge side are electrically connected to electrically connect the storage means and the control device of the printer so that data relating to the ink cartridge is sent from the storage means to the control device. The thing is also developed (for example, patent document 1).

The applicant of the present application has also proposed an ink cartridge provided with a storage means contact on the side surface (Japanese Patent Application No. 2003-306513). In the mounting portion of the printer to which the ink cartridge is mounted, a mounting portion side contact component that contacts the contact of the storage means of the ink cartridge, a substrate on which a conductive wire that conducts the mounting portion side contact component is disposed, and the mounting on the substrate And a connector for connecting a signal wire from the printer-side control device to the connector.
JP 2003-11390 A

By the way, when the storage means and the contact point are provided on the side surface near the bottom of the ink cartridge, the contact point provided in the mounting part is also disposed in the recessed part. For this reason, when assembling this part, the board must first be inserted into the member to be fixed, and then the contact parts must be mounted, and the work must be done while pressing the board side contacts of the contact parts during the work. If the procedure is reversed, inconveniences such as damage to the terminals of the contact parts occur, and the assembly is complicated. In particular, when a plurality of ink cartridges are mounted side by side, the assembly work becomes more complicated because the intervals between the cartridges are narrow.
In addition, since this assembly work has two contact points per system, high part accuracy must be ensured, which is a factor in increasing costs. Further, a model having a large number of ink cartridges is more complicated even if the number of parts is large.

  Therefore, the present invention has been proposed for the purpose of solving the above-described problems, and can simplify the structure of the contact portion of the mounting portion for mounting the liquid container including the storage means. It is an object of the present invention to provide a liquid ejecting apparatus capable of facilitating the assembling work of parts.

In order to solve the above-described problems, the present invention includes a container mounting portion that detachably mounts a liquid container that stores liquid therein, a nozzle opening that communicates with the pressure chamber, and a pressure generating element that varies the pressure in the pressure chamber. A liquid ejecting head and a storage device provided in the liquid container are electrically connectable, and includes a control device for controlling the pressure generating element, and generates pressure in the pressure chamber supplied from the liquid container. In a liquid ejecting apparatus that ejects droplets from nozzle openings due to pressure fluctuations caused by elements,
The container mounting portion is provided with a contact conducting member capable of conducting with respect to a contact conducted to the storage means of the liquid container,
The contact conducting member includes a device-side contact disposed on a surface along the attaching / detaching direction of the liquid container, and a conducting portion that is conducted to the device-side contact and supported by the base portion,
The other end of the signal wire whose one end is conducted to the control device is connected to the conducting portion of the contact conducting member.

  According to the above configuration, the conventional board is not required, the number of parts can be reduced, and the contact portion of the contact that requires particularly high positional accuracy is the contact of the storage means of the liquid container. And the contact between the contact conducting members on the device side, the reliability of electrical conduction is improved.

  And it is preferable to comprise the said signal wire | line material with a flexible cable.

  The contact conducting member may be provided with a connector conducted to the conducting portion, and the other end of the signal wire may be connected to the connector.

  Further, the other end of the signal wire may be soldered directly to a terminal conducted to the conduction part of the contact conducting member.

And in each said structure, you may make it mount the electronic element which adjusts an electrical signal in the conduction | electrical_connection part of the said contact conduction member.
“Adjusting the electric signal” means stabilizing the voltage of the electric signal, removing noise, and the like.

Hereinafter, an ink jet recording apparatus (printer) as the best embodiment of the liquid ejecting apparatus of the invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a state where an ink cartridge 3 (corresponding to a liquid container of the present invention) is mounted on a cartridge mounting part 2 (corresponding to a container mounting part of the present invention) of an ink jet recording apparatus 1.

  The ink jet recording apparatus 1 is provided with six cartridge mounting portions 2 having openings on the front surface thereof in the same horizontal plane, and ink is supplied from the ink cartridges 3 mounted on the cartridge mounting portions 2 to the recording head 4. Then, the recording head 4 operates under the control of a control device (not shown) and ejects the ink as ink droplets from the nozzle opening 5 (see FIG. 2).

The recording head 4 is a kind of the liquid ejecting head of the present invention, and is configured to be ejected from the nozzle opening 5 as an ink droplet (a kind of droplet in the present invention) in a moving state in the main scanning direction by the carriage moving mechanism. Yes.
As shown in FIG. 2, the recording head 4 includes a case 6, a vibrator unit 7 housed in the case 6, a flow path unit 8 joined to the bottom surface (tip surface) of the case 6, and the like. ing. The case 6 is made of, for example, a synthetic resin such as an epoxy resin, and a housing empty portion 9 for housing the vibrator unit 7 is formed therein. The vibrator unit 7 includes a piezoelectric vibrator 10 that functions as a pressure generating element, a fixing plate 11 to which the piezoelectric vibrator 10 is joined, and a flexible cable 12 for supplying a drive signal and the like to the piezoelectric vibrator 10. I have. The piezoelectric vibrator 10 is a laminated type manufactured by cutting a piezoelectric plate in which piezoelectric layers and electrode layers are alternately laminated into a comb-like shape, and can be expanded and contracted in a direction perpendicular to the laminating direction. This is a piezoelectric vibrator.

  The flow path unit 8 is configured by joining a nozzle plate 14 to one surface of the flow path forming substrate 13 and an elastic plate 15 to the other surface of the flow path forming substrate 13. The flow path unit 8 is provided with a reservoir 16 that is a common liquid chamber, an ink supply port 17, a pressure chamber 18, a nozzle communication port 19, and a nozzle opening 5. A series of ink flow paths from the ink supply port 17 to the nozzle opening 5 through the pressure chamber 18 and the nozzle communication port 19 are formed corresponding to each nozzle opening 5.

  The nozzle plate 14 is a thin plate made of stainless steel in which a plurality of nozzle openings 5 are opened in a row at a pitch corresponding to the dot formation density. Although not illustrated in the present embodiment, 180 nozzle openings 5 are arranged in a row at a pitch of 180 dpi, and one nozzle row is configured by these nozzle openings 5. A total of six nozzle rows from the first nozzle row located at the left end to the sixth nozzle row located at the right end are formed side by side so that different types (colors) of ink can be ejected from each nozzle row. It is composed.

For example, yellow ink can be discharged from the first nozzle row, magenta ink can be discharged from the second nozzle row, and cyan ink can be discharged from the third nozzle row. Further, black ink can be discharged from the fourth nozzle row, red ink can be discharged from the fifth nozzle row, and blue ink can be discharged from the sixth nozzle row.
In the present embodiment, the vibrator unit 7 is provided for each nozzle row. That is, the recording head 4 includes a total of six transducer units 7.

  The elastic plate 15 has a double structure in which an elastic film 21 is laminated on the surface of the support plate 20. In this embodiment, the elastic plate 15 is produced using a composite plate material in which a stainless steel plate, which is a kind of metal plate, is used as the support plate 20 and a resin film is laminated on the surface of the support plate 20 as an elastic film 21. The elastic plate 15 is provided with a diaphragm portion 22 that changes the volume of the pressure chamber 18. The elastic plate 15 is provided with a compliance portion 23 that seals a part of the reservoir 16.

The compliance part 23 is produced by removing the support plate 20 in the region facing the opening surface of the reservoir 16 by etching or the like, and functions as a damper that absorbs pressure fluctuations of the liquid stored in the reservoir 16. .
The diaphragm portion 22 is produced by partially removing the support plate 20 by etching or the like as in the compliance portion 23 and providing a portion thinner than the other portions. That is, the diaphragm portion 22 includes an island portion 24 to which the tip surface of the piezoelectric vibrator 10 is joined, and a thin elastic portion surrounding the island portion 24.

  Since the tip surface of the piezoelectric vibrator 10 is joined to the island portion 24, the island portion 24 is obtained by discharging the piezoelectric vibrator 10 and extending it in the longitudinal direction of the vibrator (that is, the longitudinal direction). Is pressed to the nozzle plate 14 side, the elastic film 21 in the diaphragm portion 22 is deformed, and the pressure chamber 18 contracts. When the piezoelectric vibrator 10 is charged and contracted in the longitudinal direction of the vibrator, the pressure chamber 18 is expanded by the elasticity of the elastic film 21. Then, by controlling the expansion and contraction of the pressure chamber 18, the ink pressure in the pressure chamber 18 varies and ink droplets are ejected from the nozzle openings 5.

  As described above, the printer 1 according to the present embodiment is capable of ejecting ink droplets of six colors, and thus is configured so that six ink cartridges 3 corresponding to these ink types are mounted.

3 is a perspective view of the ink cartridge 3, and FIG. 4 is an exploded perspective view thereof.
The ink cartridge 3 has an ink supply port 31 for delivering ink to be supplied to the ink jet recording apparatus 1 to the front surface of a substantially rectangular parallelepiped container body 30, and pressurizes the ink in the container body 30 from the ink supply port 31. A pressurized fluid introduction port 32 for introducing a pressurized fluid for delivery into the container body 30 is formed. In addition, a pair of positioning holes 34 into which a pair of positioning projections 33 provided in the cartridge mounting portion 2 are inserted are formed on the front surface of the container body 30. Around each positioning hole 34, a cartridge-side positioning surface 35 is formed that contacts the device-side positioning surface of the cartridge mounting portion 2 and positions the ink cartridge 3 in the insertion direction.

  In addition, an erroneous attachment preventing unit 36 is provided at one corner of the container body 30 including the front surface. The erroneous attachment preventing unit 36 is configured to detect the correct ink type so that the ink cartridge 3 of a predetermined ink type is correctly mounted at a predetermined position when the ink cartridge 3 is mounted on the ink jet recording apparatus 1. A shape other than the ink cartridge 3 is provided so that it cannot be mounted.

  Further, a circuit board on which an IC (semiconductor storage element) for storing information such as ink type and remaining amount is mounted on one side surface of the container body 30. A storage device as a storage means of the present invention is provided with a plurality of electrodes 37 that are electrically connected and come into contact with the device-side contacts of the printer 1 (contacts connected to the storage means of the liquid container and cartridge-side electrodes) 37. 38 is constituted. The storage device 38 is disposed at a position near the ink supply port 31 in the entire container main body 30.

  The container main body 30 includes a case main body 30a having an upper surface opened and a lid member 30b for sealing the upper surface opening of the case main body 30a. An ink bag 39 having a flexible ink storage portion (illustrated by a broken line for explanation) filled with ink is stored inside the container body 30. The ink bag 39 is provided with a port portion 40 for sending the ink inside the bag. A lid 42 is attached to the inner end portion of the port portion 40 with a check valve 41 disposed therein. On the other hand, a seal supply lid 45 is attached to the outer end portion of the port portion 40 with a spring seat 44 biased by a spring 43 disposed therein.

  A film 47 is fixed by thermal welding to a welding portion 46 formed so as to surround the outer periphery of the region of the case main body 30a that accommodates the ink bag 39, and the inside is made a sealed space. The sealed space is sealed without the pressurized fluid introduced from the pressurized fluid introduction port 32 (pressurized air in this embodiment) leaking outside, and presses the ink containing portion of the ink bag 39 with the pressurized fluid. The ink can be supplied to the outside. Further, the lid member 30b is fixed to the case main body 30a by an engagement protrusion 48 formed on the lid member 30b so as to cover the film 47, thereby protecting the film 47 and preventing unnecessary expansion of the film 47 during pressurization. I am doing.

FIG. 5 is an explanatory view showing a state before the ink cartridge 3 is attached to the cartridge attachment portion 2 of the ink jet recording apparatus 1, and FIG. 6 is an explanatory view showing the attached state.
The cartridge mounting portion 2 is provided with a slider member 50 to which the front portion of the ink cartridge 3 is connected as a part of the cartridge mounting portion 2. The slider member 50 is provided so as to be slidable in the insertion / extraction direction of the ink cartridge 3 and is urged by an elastic means such as a spring in a direction (extraction direction Y) opposite to the insertion direction X of the ink cartridge 3. ing.

  A pair of positioning projections 33, 33 are provided on the surface of the slider member 50 facing the front surface of the ink cartridge 3, and each base portion of each positioning projection 33, 33 has an apparatus side positioning surface by each shoulder. 51, 51 are provided. When the ink cartridge 3 is connected to the slider member 50, the pair of positioning protrusions 33 and 33 are inserted into the pair of positioning holes 34 on the front surface of the ink cartridge 3, and the pair of cartridge-side positioning surfaces 35 and the pair of positioning holes 35 are inserted. It is comprised so that the apparatus side positioning surfaces 51 and 51 may contact | abut.

Also, as shown in FIG. 7, an opening 52 is formed through the center of the front surface of the slider member 50 on the ink cartridge 3 side, and the inside of the opening 52 is made of a material capable of absorbing ink. An ink absorbing material 53 is provided. The ink absorbing material 53 has a cylindrical shape with an ink supply needle insertion hole 54 formed in the center thereof, and the ink supply needle 55 inserted into the ink supply port 31 of the ink cartridge 3 is the ink supply needle. It is inserted through the insertion hole 54. An ink supply needle 55 that is inserted into the ink supply port 31 of the ink cartridge 3 is fixedly disposed in the cartridge mounting portion 2.
Further, a pressurized fluid port 56 connected to the pressurized fluid introduction port 32 of the ink cartridge 3 is provided next to the opening 52 of the slider member 50.

  Further, as shown in FIGS. 5 to 7, a contact protrusion 60 projects forward from one end of the front surface of the slider member 50, and the contact protrusion 60 has a storage device 38. A contact conducting member 62 having a device side contact 61 connected to the electrode 37 is attached. The contact protrusion 60 has a substantially rectangular cylinder integrally formed with the slider member 50, and the inner surface facing the side surface of the mounted ink cartridge 3 faces the electrode 37 of the ink cartridge 3. A notch is formed from the portion to the tip, and a portion in the vicinity of the tip opposite to the surface is notched, and the notch for locking for locking the contact conducting member 62 to the remaining upper and lower surfaces 63 is formed.

  As shown in FIG. 8, the contact conducting member 62 has a configuration in which a first base plate 64a having a narrow width and a second base plate 64b having a wide width are overlapped, and a longitudinal groove 65 is formed on an inner surface and an outer surface. And a slit 66 in the longitudinal direction is formed at the left and right side edge portions of the tip portion of the second base plate 64b, and a locking projection 67 whose tip is formed in a substantially twisted shape at a portion outside the slit 66. , A thin metal strip-like conductive portion 68 arranged and supported in the groove 65 on the inner side surface and the outer side surface of the base portion 64, and the inner side groove 65 in the inner side groove 65. And a device-side contact 61 that is bent and protruded in a “<” shape, and a connector 69 is provided at the rear end of the second base plate 64b. The conductive portion 68 is electrically connected. Note that the interval between the locking projections 67 provided on the left and right sides of the base portion 64 is set to be slightly larger than the vertical dimension of the hollow portion of the contact projection 60, and is locked when the base portion 64 is inserted to a predetermined position. The protrusion 67 is configured to be locked to the locking notch 63.

  In order to attach the contact conducting member 62 having such a configuration to the contact protrusion 60 of the slider member 50, the device-side contact 61 is provided with the second base plate 64b to which the connector 69 is attached facing outward. The first base plate 64a is inserted from the rear end opening of the contact protrusion 60 with the first base plate 64a facing inward. When the contact conducting member 62 is inserted and the inclined side of the locking projection 67 hits the opening on the rear end side of the contact projection 60, both the locking projections 67, 67 are moved inward to narrow the interval, and thus further inserted. be able to. When fully inserted to a predetermined position, the locking projection 67 of the contact conducting member 62 is locked to the locking notch 63 of the contact projecting portion 60, whereby the contact conducting member 62 is brought to the predetermined position of the slider member 50. The device-side contact 61 is arranged in a state of protruding from a surface along the attachment / detachment direction (insertion / removal direction) of the ink cartridge 3.

  If the contact conducting member 62 is attached to the contact protrusion 60 of the slider member 50, the other end of the signal wire 70 such as a flexible cable whose one end is conducted to the circuit board of the control device is connected to the elongated connection hole 71 of the connector 69. And electrically connected to the conduction portion 68, whereby the control device and the device-side contact 61 of the contact conduction member 62 are conducted.

  As described above, in the printer 1 according to the present embodiment, the contact conducting member 62 can be easily attached to the cartridge mounting portion 2 and there is no restriction on the attachment procedure, so that the operation is easy. In addition, if an inconvenience is found after assembly, it can be easily reassembled. And since the other end of the signal wire 70, such as a flexible cable, is connected to the conduction | electrical_connection part 68, the conventional board | substrate becomes unnecessary and can reduce a number of parts. Furthermore, since the apparatus side contact 61 and the connection portion of the signal wiring are close to each other, a space can be afforded, and the degree of freedom in the layout of the signal wiring is increased.

  In the embodiment shown in the drawings, the other end of the signal line material 70 such as a flexible cable is inserted into the connection hole 71 of the connector 69 and connected to the conduction portion 68. However, the other end of the signal line is not provided without providing the connector 69. May be directly soldered to a terminal conducted to the conducting portion 68, or the end of the conducting portion 68 may be functioned as a terminal and soldered directly to the end of the conducting portion 68.

  As shown in FIG. 5, in a state where the ink cartridge 3 is not mounted in the cartridge mounting portion 2, that is, in a state where the slider member 50 is not pushed in, the tip of the ink supply needle 55 is inside the ink absorbing material 53. Is located.

  When the ink cartridge 3 is inserted into the cartridge mounting portion 2, first, the positioning projections 33 and 33 of the slider member 50 are inserted into the positioning holes 34 and 34 of the ink cartridge 3, and the pressurized fluid introduction of the ink cartridge 3 is introduced. A pressurized fluid port 56 of the slider member 50 is connected to the port 32. Further, the electrode 37 of the storage device 38 and the device-side contact 61 are connected to conduct both.

  At the time when the electrode 37 of the storage device 38 and the device-side contact 61 are connected, the ink supply needle 55 has not yet been inserted into the ink supply port 31 of the ink cartridge 3. Therefore, at this time, the control device reads data from the storage device 38 and determines whether or not the correct ink cartridge 3 is inserted. Or a warning display, so that the user can replace the ink supply needle 55 with the correct ink cartridge 3 before the ink supply needle 55 is inserted into the ink supply port 31 of the wrong ink cartridge 3. As a result, it is possible to reliably prevent wrong ink from flowing into the ink flow path of the printer 1 main body. Further, when the ink supply port 31 of the ink cartridge 3 inserted by mistake is sealed with a seal or the like, it is possible to avoid unnecessarily breaking the seal or the like.

  After the ink cartridge 3 is connected to the slider member 50, when the ink cartridge 3 is further pushed in the insertion direction X against the urging force of the slider member 50, the ink supply needle 55 is moved to the ink supply port 31 of the ink cartridge 3. Is inserted.

Next, a case where the ink cartridge 3 is removed from the cartridge mounting portion 2 will be described.
When the ink cartridge 3 is moved in the drawing direction Y, the ink supply needle 55 comes out of the ink supply port 31 of the ink cartridge 3. When the ink supply needle 55 is removed from the ink supply port 31, the connection between the electrode 37 of the storage device 38 and the device-side contact 61 is maintained. Data can be exchanged between them, and data reading errors can be prevented.

  When the ink cartridge 3 is further moved in the drawing direction Y, the slider member 50 comes into contact with the stopper, so that the ink cartridge 3 cannot be moved at a predetermined stop position. By further moving the ink cartridge 3 in the pulling direction Y from here, the pressurized fluid port 56 is separated from the pressurized fluid introduction port 32 of the ink cartridge 3, and the positioning projection 33 from the positioning hole 34 of the ink cartridge 3. 33 are removed. Further, the electrode 37 of the storage device 38 and the device side contact 61 are disconnected.

  Next, another embodiment of the present invention will be described. FIG. 9 is a perspective view for explaining the configuration of the contact conducting member 62 in the present embodiment. The same parts as those in FIG. In this embodiment, the point which mounted the electronic element which adjusts an electric signal in the contact conduction member 62 differs from the said embodiment. Specifically, at least one pair of connection portions 72 is provided on the connector 69 side of the conduction portion 68, and a capacitor 73 is mounted on the connection portions 72 and 72 as an electronic element. By mounting the capacitor 73 on the contact conducting member 62, it is possible to stabilize an electric signal exchanged between the storage device 38 of the ink cartridge 3 and the control device via the contact conducting member 62.

  9 shows an example in which the capacitor 73 is mounted on the contact conducting member 62, the present invention is not limited to this, and an electronic element other than the capacitor 73 can also be mounted. Thus, by appropriately mounting the electronic element mounted on the conventional substrate on the contact conducting member 62, the function performed by the substrate can be imparted to the contact conducting member 62.

  In each of the above embodiments, the ink jet recording apparatus (printer) has been described as an example. However, the present invention can also be applied to a liquid ejecting apparatus having a liquid ejecting head other than the recording head 4. For example, it can be applied to a display manufacturing apparatus, an electrode manufacturing apparatus, a chip manufacturing apparatus, a micropipette, and the like.

FIG. 2 is a perspective view of an ink jet recording apparatus that is a typical liquid ejecting apparatus. FIG. 3 is a cross-sectional view illustrating a configuration of a recording head. It is a perspective view of an ink cartridge. 2 is an exploded perspective view of an ink cartridge. FIG. FIG. 6 is a plan view of a part of the cartridge mounting portion in a state where no ink cartridge is mounted. FIG. 6 is a plan view of a part of a cartridge mounting portion in a state where an ink cartridge is mounted. It is a perspective view of a slider member. It is a perspective view of a contact conducting member. It is a perspective view of the contact conduction member in other embodiments of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Inkjet recording device, 2 Cartridge mounting part, 3 Ink cartridge, 4 Recording head, 5 Nozzle opening, 7 Vibrator unit, 10 Piezoelectric vibrator, 18 Pressure chamber, 30 Container main body, 31 Ink supply port, 37 Cartridge side electrode 38 storage device, 50 slider member, 55 ink supply needle, 60 contact protrusion, 61 device side contact, 62 contact conducting member, 64 base portion, 65 groove, 68 conducting portion, 69 connector, 70 signal wiring, 71 flexible Connector hole for inserting cable, 73 capacitor

Claims (5)

A container mounting portion for detachably mounting a liquid container storing liquid therein;
A liquid ejecting head having a nozzle opening leading to the pressure chamber and a pressure generating element that varies the pressure in the pressure chamber;
A control device that is electrically connectable to storage means provided in the liquid container and controls the pressure generating element;
In a liquid ejecting apparatus that ejects liquid in a pressure chamber supplied from a liquid container as droplets from a nozzle opening due to pressure fluctuation by a pressure generating element,
The container mounting portion is provided with a contact conducting member capable of conducting with respect to a contact conducted to the storage means of the liquid container,
The contact conducting member includes a device-side contact disposed on a surface along the attaching / detaching direction of the liquid container, and a conducting portion that is conducted to the device-side contact and supported by the base portion,
A liquid ejecting apparatus, wherein the other end of the signal wire whose one end is conducted to the control device is connected to the conducting portion of the contact conducting member.   The liquid ejecting apparatus according to claim 1, wherein the signal wire is configured by a flexible cable. The contact conducting member is provided with a connector conducted to the conducting portion,
The liquid ejecting apparatus according to claim 1, wherein the other end of the signal wire is connected to the connector.   3. The liquid ejecting apparatus according to claim 1, wherein the other end of the signal wire is directly soldered to a terminal conducted to the conducting portion of the contact conducting member. The liquid ejecting apparatus according to claim 1, wherein an electronic element that adjusts an electrical signal is mounted on the conduction portion of the contact conduction member.

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