JP2004090482A - Inkjet head and inkjet printer comprising it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet head being connected readily with an inkjet printer inexpensively. <P>SOLUTION: An external connector (head side connector) 21 is fixed to a housing frame 14 through a wiring supporting board (connector fixing board) 22. The wiring supporting board 22 is fixed through engagement of head side guides 22a and 22a with a connector supporting part 14m. When the external connector 21 is fitted to a body side connector 31b, the external connector 21 is guided for the connector supporting part 14m by the head side guides 22a and 22a and a shift in fitting axes is corrected. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an inkjet head that ejects ink onto a recording medium, and an inkjet printer including the same.
[0002]
[Prior art]
An inkjet head that ejects ink onto a recording medium is attached to an inkjet printer by being fixed to a carriage. The ink jet head and the carriage are electrically connected by a connector provided on both.
[0003]
[Problems to be solved by the invention]
Here, due to an error between the fixed position of the inkjet head and the position of the connector on the carriage side (main body side connector), there is a deviation between the fitting axis of the connector on the inkjet head side and the fitting axis of the connector on the carriage side. As a result, installation of the inkjet head during assembly and maintenance of the inkjet printer has been complicated.
[0004]
In order to easily fit the head side connector and the main body side connector, as a method of correcting the displacement between the fitting shafts of both, a method of applying a connector having a floating function as the head side connector, or a method of using a spring. There is a method of guiding the head side connector, and the like. However, there is a problem that the connector having the floating function is expensive and the range that can be corrected is narrower than the actual range of displacement between the fitting shafts. Further, when the head-side connector is guided by a spring, the assembly process of the ink jet head is increased to incorporate the spring. Furthermore, in the case of guiding with a spring, when the head-side connector is fitted with the main-body-side connector, elastic stress of the spring is always applied to the housing and the wiring member. Therefore, in order to prevent troubles such as deformation of the housing and disconnection of the wiring member, it is necessary to provide these components with high strength. For these reasons, there has been a problem that the conventional inkjet head becomes expensive by being able to correct the displacement of the fitting shaft.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive ink jet head capable of easily fitting a head side connector and a main body side connector.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is an ink jet head that discharges ink, comprising: a head side connector fitted to an external device side connector; and a connector mounting board to which the head side connector is fixed. And a connector supporting portion movably supporting the connector mounting substrate, wherein the connector mounting substrate has a head-side guide for guiding the connector mounting portion.
[0006]
According to the first aspect of the present invention, the connector supporting portion supports the head-side connector in a movable manner via the connector mounting board. The connector mounting board has a guide, and is guided by the head-side guide with respect to the connector supporting portion. Thus, the head-side connector can be moved to a position where it can be fitted with the external device-side connector, and the fitting axis can be corrected. Therefore, a mechanism that can easily connect the inkjet head to an external device can be manufactured by applying an inexpensive connector. In addition, since the connector mounting board has the head-side guide, the number of components and steps involved in mounting the head-side connector can be reduced. Furthermore, since the head-side connector can be attached to the connector support without using a spring, an ink jet head can be manufactured without imparting high strength to components such as a housing and a wiring member. Therefore, an inkjet head in which the head-side connector and the external device-side connector can be easily fitted can be manufactured at low cost.
[0007]
The invention according to claim 2 is the ink jet head according to claim 1, wherein the head-side guide is substantially similar to the head-side connector in a direction in which the head-side connector is fitted with the external device-side connector. It is characterized by being located at the same position or behind the head-side connector.
[0008]
According to the second aspect of the invention, it is possible to easily prevent the head-side guide from hindering the connection between the head-side connector and the external device. Therefore, the same effect as that of the first aspect can be obtained.
[0009]
According to a third aspect of the present invention, there is provided an ink jet printer including the ink jet head according to the first or second aspect, wherein the main body side connector fitted with the head side connector, and the head side connector are connected to the main body side. And a main body side guide that guides to a position where the connector can be fitted to the side connector.
[0010]
According to the third aspect of the invention, the ink jet printer includes the main body side guide that guides the head side connector to a position where the head side connector can be fitted with the main body side connector. The head-side connector of the ink jet head according to claim 1 or 2 is guided by the main-body-side guide to a position where the head-side connector can be fitted with the main-body-side connector, so that it can be easily fitted with the main-body-side connector. By providing a member for guiding the head-side connector on the ink-jet printer main body side in this way, an ink-jet head that can easily fit the head-side connector and the main body-side connector can be manufactured at low cost.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.
First, an overall configuration of an inkjet printer according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is an overall configuration diagram of an inkjet printer according to an embodiment of the present invention.
[0012]
As shown in FIG. 1, the inkjet printer 1 according to the present embodiment includes an inkjet head 2, a carriage 3, a carriage rail 4, a moisturizing unit 5, a maintenance unit 7, an ink tank 25, an ink supply pipe 26, And control means (not shown).
[0013]
The recording medium 13 on which an image is formed by the inkjet printer 1 is conveyed in a sub-scanning direction orthogonal to the main scanning direction A in FIG. The transport of the recording medium 13 is performed by a transport unit (not shown).
[0014]
The carriage 3 carries the inkjet heads 2, 2,... And moves in the direction of arrow A from the home position area B to the maintenance area D along the carriage rail 4. In the recording area C, the main scanning on the recording medium 13 is performed by the operation of the carriage 3.
[0015]
During the main scanning, the inkjet head 2 discharges ink toward the recording medium 13 to form an image on the recording medium 13. There is a case where the inkjet head 2 is vertically placed so that the nozzle ejection direction is vertically downward, and a case where the inkjet head 2 is horizontally placed so that the nozzle ejection direction is a horizontal direction. However, the present invention can be implemented in other directions. . In any case, the inkjet head 2 is installed such that the nozzle surface 15 b on which the ejection openings of the nozzles for ejecting ink are arranged faces the recording medium 13.
In the inkjet printer 1 according to the present embodiment, a total of four inkjet heads 2, 2, and 4 are provided so as to be able to eject four color inks of black (K), yellow (Y), magenta (M), and cyan (C). Are set on the carriage 3. Another inkjet head 2 is arranged on the back side of the inkjet head 2 shown in the center.
Note that four or more ink jet heads are usually used for color expression. A color printer having four to eight ink jet heads has been put to practical use.
[0016]
The ink tank 25 stores ink to be supplied to the inkjet head 2. One ink tank 25 is provided for one inkjet head 2. The ink supply pipe 26 is provided so as to communicate the ink jet head 2 and the ink tank 25, and guides ink from the ink tank 25 to the ink jet head 2.
[0017]
The maintenance unit 7 is disposed in the maintenance area D, and includes a suction cap 8, a cleaning blade 11, an ink receiver 12, a suction pump 9, a waste ink tank 10, and the like. The maintenance unit 7 performs a series of maintenance operations to remove foreign matter in the inkjet head 2 and restore the ink ejection state of the inkjet head 2 to a favorable state.
[0018]
The suction cap 8 communicates with the waste ink tank 10 via the suction pump 9 and rises during the maintenance operation to cover the nozzle surface 15b of the inkjet head 2. Four suction caps 8 are provided. The suction caps 8, 8,... Move the carriages 3 of the ink-jet heads 2, 2,... So as to cover the nozzle surfaces 15b, 15b,. Are arranged corresponding to the arrangement in.
The suction pump 9 includes a cylinder pump and a tube pump. The suction pump 9 operates with the suction cap 8 covering the nozzle surface 15b, thereby generating a suction force for sucking the ink inside the inkjet head 2 together with the foreign matter from the discharge port.
[0019]
After suction of the ink from the inkjet head 2, the cleaning blade 11 removes the ink adhering to the nozzle surface 15b. Thereafter, the ink receiver 12 receives the ink preliminarily ejected by the inkjet head 2. The waste ink tank 10 stores ink sucked from the inkjet head 2 by the operation of the suction pump 9 and ink preliminarily ejected from the inkjet head 2.
[0020]
The moisturizing unit 5 is arranged in the home position area B, and includes moisturizing caps 6, 6,. When the ink jet head 2 is in a standby state, the moisturizing cap 6 covers the nozzle surface 15b to moisturize the ink of the ink jet heads 2, 2,. Four moisturizing caps 6, 6,... Are provided. These four moisturizing caps 6, 6, ... correspond to the arrangement of the inkjet heads 2, 2, ... so that the nozzle surfaces 15b, 15b, ... of the four inkjet heads 2, 2, ... can be simultaneously covered. It is arranged as.
[0021]
The control unit includes a CPU (Central Processing Unit) and a memory, and controls each component of the inkjet printer 1. The memory stores data of an image to be formed on the recording medium 13 and a program for controlling each component of the inkjet printer 1. The CPU performs an operation based on image data and programs stored in the memory, and transmits a control signal to each component based on the operation result.
[0022]
Next, the inkjet head 2 according to the present invention will be described with reference to FIGS.
2 and 3 are exploded perspective views of the inkjet head 2 of the present embodiment. FIGS. 2 and 3 are drawn from different directions (substantially 180 degrees).
The inkjet head 2 of the present embodiment includes a housing frame 14, an inkjet head chip (hereinafter, simply referred to as a "head chip") 15, two manifolds 16a and 16b, a cap receiving plate 17, and two flexible wiring boards. 18a, 18b, two drive circuit boards 19a, 19b, an external connector 21, a wiring support plate 22, a flexible wiring board 23, and a cover 24.
A number of nozzles are continuously provided in the direction of arrow E at the end 15a of the head chip 15. More specifically, the head chip 15 is formed by attaching a plate (nozzle plate) made of metal, resin, or the like in which a nozzle-shaped hole is machined to the end face of the end 15a where the outlet of the pressure chamber is provided. Are provided at predetermined positions. As a result, the nozzle outlet is arranged on the nozzle surface 15b. A row of nozzles provided continuously in the direction of arrow E is referred to as a nozzle row. The ink jet head 2 has two nozzle rows. The outlets of these nozzles serve as ink ejection ports. The head chip 15 has a long external shape in the direction of arrow E. The inkjet head 2 is mounted on the carriage 3 such that the direction of arrow E and the main scanning direction A shown in FIG.
[0023]
The head chip 15 is a device that discharges ink filled in an ink flow path (pressurized chamber) formed therein from a nozzle. An ink flow path (pressurized chamber) provided with a piezoelectric element for generating a pressure (discharge force) for discharging ink from the nozzle is provided for each nozzle in front of the nozzle entrance at the end 15a of the head chip 15. It is formed. The ejection force may be generated by other means such as a heater element. A piezoelectric element that applies a discharge force to each nozzle of one nozzle row is driven by a drive circuit mounted on the drive circuit board 19a, and a piezoelectric element that provides a discharge force to each nozzle of the other nozzle row is mounted on the drive circuit board 19b. Is driven by the drive circuit. For this purpose, the drive circuit boards 19a and 19b are connected to both side surfaces of the head chip 15 via flexible wiring boards 18a and 18b, respectively.
The electrical connection between the drive circuit boards 19a and 19b and the outside is made by an external connector 21, a flexible wiring board 23, and internal connectors 20a and 20b. The internal connectors 20a and 20b are mounted on the drive circuit boards 19a and 19b, respectively. The external electrodes of the flexible wiring board 23 are connected to the external connector 21, and one end of the flexible wiring board 23 including the external electrodes is adhered and supported on the wiring support plate 22. The other end of the flexible wiring board 23 is extended from the wiring support plate 22 so as to be divided into two, and internal electrodes are formed at the respective ends. These internal electrodes are connected to each internal connector 20a, 20b. When the inkjet head 2 is mounted, the external connector 21 is connected to a connector provided on the carriage 3.
[0024]
Manifolds 16a and 16b are attached to both side surfaces of the head chip 15, respectively. Filter installation portions a1 and a2 are provided on the side surfaces of the head chips 15 of the manifolds 16a and 16b. A filter a3 is attached to the filter installation part a1, and a filter a4 is attached to the filter installation part a2. The filters a3 and a4 are preferably attached to the corresponding filter installation sections a1 and a2 by thermocompression bonding or bonding. FIG. 3 shows the filter installation part a1, and FIG. 2 shows the filter installation part a2.
The cap receiving plate 17 is attached to the manifolds 16a and 16b. At this time, the nozzle surface 15b is exposed through the opening 17a provided in the cap receiving plate 17.
Ink is supplied from the ink supply pipe 26 shown in FIG. 1 to the flow path connector 14p formed in the housing frame 14. An ink flow path is continuously formed in the flow path connector 14p and the flow path forming section 14n, and this ink flow path is connected to the ink flow paths formed in each of the manifolds 16a and 16b. The ink that reaches the manifolds 16a and 16b passes through the filters a3 and a4 and is further introduced into an ink flow path (pressurized chamber) formed in the head chip 15.
The cap receiving plate 17 receives the suction cap 8 and the moisturizing cap 6 and comes into close contact with them.
[0025]
The housing frame 14 includes a base frame portion 14a for housing the head chip 15, the manifolds 16a and 16b, and the cap receiving plate 17, and side wall portions 14g and 14h erected from both ends in the longitudinal direction of the base frame portion 14a. And a radiator plate 14k and a connector support portion 14m formed so as to bridge the side walls 14g and 14h, and head chip holding portions 14i and 14j formed inside the side walls 14g and 14h, respectively.
Both ends of the head chip 15 are held by the head chip holding portions 14i and 14j, respectively. The head chip 15, the two manifolds 16a and 16b, the cap receiving plate 17, and the base end frame portion 14a are fixed to each other by an adhesive.
The drive circuit boards 19a and 19b are joined to the heat sink 14k. The connector support portion 14m supports the external connector 21.
The cover 24 is attached to the housing frame 14, and the four side surfaces and the upper end surface (= surface opposite to the nozzle surface 15b) of the head housing are configured. A connector holding opening 24a is formed on an end surface of the cover 24 that forms the upper end surface of the head housing. When the cover 24 is attached to the housing frame 14, the external connector 21 and the wiring support plate 22 are held by the connector holding opening 24a.
Further, three fulcrum contact portions 14b, 14c, 14d and two bolt insertion portions 14e, 14f are provided on the outer periphery of the base end frame portion 14a. The three fulcrum contact portions 14b, 14c, and 14d are portions that come into contact with and are supported by three fulcrums on the carriage 3 when the inkjet head 2 is positioned on the carriage 3. After the positioning, bolts for fixing the inkjet head 2 to the carriage 3 are inserted through bolt insertion holes formed in the bolt insertion portions 14e and 14f.
[0026]
Next, the carriage 3, the housing frame 14, the external connector 21, the wiring support plate 22, and the cover 24 will be described in more detail with reference to FIGS.
The housing frame 14 is a component that forms a housing of the inkjet head 2 together with the cover 24, and includes a base frame portion 14a and a connector support portion 14m.
The base end frame portion 14a is a component for fixing the inkjet head 2 to the carriage 3, and is formed in a form to house the head chip 15, the manifolds 16a and 16b, and the cap receiving plate 17.
The connector support portion 14m is provided so as to bridge the side wall portions 14g and 14h, and supports the external connector 21 in a form movable in a direction perpendicular to its own fitting axis. As shown in FIG. 4B, a substantially rectangular notch 14r is formed in the connector support 14m so that the wiring support plate 22 can be supported substantially vertically. Two opposing edges 14q, 14q of the notch 14r are formed in a form in which the wiring support plate 22 can move in a state where head-side guides 22a, 22a described later are engaged.
[0027]
The wiring support plate (connector mounting board) 22 is a component for mounting the external connector 21 and the flexible wiring board 23 to the inkjet head 2. As shown in FIG. 5, the wiring support plate 22 has a substantially rectangular shape, and the external connector 21 is fixed to the upper edge. On both side edges of the wiring support plate 22, head side guides 22a, 22a having grooves to be engaged with the edges 14q, 14q of the connector support portion 14m are provided. The head-side guides 22a, 22a guide the external connector 21 to the connector support portion 14m in a direction in which both fitting axes are corrected when the external connector 21 is fitted with a body-side connector 31b described later.
[0028]
The shapes of the head-side guides 22a, 22a are determined such that the external connector 21 can move substantially parallel to the connector support portion 14m in a state of being engaged with the edges 14q, 14q. Specifically, the interval between the bottoms of the grooves of the head-side guides 22a, 22a (w 'in FIG. 5A) is set smaller than the interval between the edges 14q, 14q (w in FIG. 4B). You. Further, the difference between w and w ′ is determined by the width of the wiring support plate 22 within its own width direction (left and right in FIG. 5B) within the range of the displacement of the fitting axis that can occur between the external connector 21 and the main body side connector 31 b. Direction). The head-side guides 22a, 22a are located behind the external connector 21 in the fitting direction in which the external connector 21 can be fitted with the body-side connector 31b so as not to hinder the fitting between the external connector 21 and the body-side connector 31b. Alternatively, it is provided at substantially the same position as the external connector 21.
[0029]
The external connector 21 is a head-side connector, and connects the drive circuit boards 19a and 19b to the control means by fitting with the main-body-side connector 31b. The external connector 21 is fixed at a right angle so that the fitting axis is parallel to the wiring support plate 22. The external connector 21 is supported by the connector support portion 14m via the wiring support plate 22 in a movable manner. The moving range of the external connector 21 is regulated by the notch 14r and a connector holding opening 24a described later.
[0030]
The cover 24 forms a head housing together with the housing frame 14 by being attached to the housing frame 14. When the inkjet head 2 is assembled, the external connector 21 is exposed from the connector holding opening 24a.
[0031]
Next, the carriage 3 will be described.
The carriage 3 is a component that holds the inkjet heads 2, 2,... And scans the inkjet heads 2, 2,. The carriage 3 includes a head holding unit (not shown) and a head connection substrate 31.
The head holding unit is provided at the bottom of the carriage 3 and has a configuration in which the inkjet head 2 is held by sandwiching the base end frame portion 14a.
The head connection substrate 31 is a component for connecting the inkjet head 2 to a control unit, and is provided on a surface of the carriage 3 facing the recording medium 13. As shown in FIG. 6, the head connection substrate 31 includes a substrate main body 31a, a main body side connector 31b, a main body side guide 31c, and a side wall holding portion 31d. The number and arrangement of these components are set according to the number and arrangement of the inkjet heads 2, 2,.
[0032]
The board main body 31 a is a printed wiring board for fixing and attaching each component of the head connection board 31 to the carriage 3. The main body side connector 31b has a form in which it is fitted to the external connector 21, and the drive circuit boards 19a, 19b are connected to the control means by being fitted in the external connector 21.
[0033]
The main body side guide 31c is a component that guides the external connector 21 to a position where the external connector 21 can be fitted with the main body side connector 31b, and is provided as a substantially rectangular frame surrounding the main body side connector 31b. The internal shape and arrangement of the main body side guide 31c are set so that the fitting axes of the external connector 21 and the main body side connector 31b coincide when the external connector 21 and the wiring support plate 22 are engaged.
The length of the long side of the inner side of the main body side guide 31 c is set according to the width of the end of the wiring support plate 22 on the side of the external connector 21. The length of the short side is set according to the sum of the thickness of the external connector 21 and the thickness of the wiring support plate 22. Further, spacers 31e and 31e for holding the external connector 21 are provided near the apex inside the main body side guide 31c that is not in contact with the wiring support plate 22 according to the difference between the width of the external connector 21 and the width of the wiring support plate 22. It is provided.
[0034]
Further, the main body side guide 31c is provided with an inclined surface inclined from the outside to the inside. When the external connector 21 is fitted to the main body side connector 31b as shown in FIG. 7, the external connector 21 and the wiring support plate 22 come into contact with this inclined surface to fit the external connector 21 and the main body side connector 31b. Guided to a position where the axes coincide.
[0035]
The side wall holding portion 31d engages with the side wall portion 14g at a position where the external connector 21 fits with the main body side connector 31b, and holds the side wall portion 14g.
[0036]
Next, a procedure for attaching the inkjet head 2 to the carriage 3 in the inkjet printer 1 according to the present invention will be described.
First, the inkjet head 2 is inserted into the head holding portion of the carriage 3 such that the external connector 21 and the main body side connector 31b face each other. Following the insertion, the inkjet head 2 is moved toward the main body side connector 31b as shown in FIG. 8, and the external connector 21 and the main body side connector 31b are fitted. At this time, since the external connector 21 and the wiring support plate 22 abut against the inclined surface provided on the main body side guide 31c, the fitting axes of the external connector 21 and the main body side connector 31b coincide with each other as approaching the main body side connector 31b. Guided like that. In this way, the external connector 21 is guided to a position where it can be fitted with the main body side connector 31b. At the same time that the external connector 21 is guided by the main body side guide 31c, the wiring support plate 22 moves so as to eliminate the displacement of the fitting shaft of the external connector 21 and the main body side connector 31b. At this time, the head-side guides 22a guide the external connector 21 to the connector support portion 14m. In this manner, the external connector 21 is guided to a position where it can be fitted with the main body side connector 31b, and fits with the main body side connector 31b.
Further, in a state where the external connector 21 is fitted to the main body side connector 31b, the side wall portion 14g is engaged with and held by the side wall holding portion 31d.
[0037]
In this manner, by attaching the external connector 21 to the housing frame 14 via the wiring support plate 22 in a movable manner, when the inkjet head 2 is attached to the carriage 3, the external connector 21 becomes a head-side guide 22 a, It can be guided and moved by 22a. Therefore, the displacement of the fitting shaft of the main body side connector 31b can be easily corrected. In addition, the displacement of the fitting shaft between the external connector 21 and the main body side connector 31b can be corrected by a simple mechanism.
The wiring support plate 22 has a function of installing the external connector 21 on the housing frame 14 and a function of guiding the external connector 21 in a direction perpendicular to the fitting direction. Since it has a function, the number of components of the inkjet head 2 can be reduced. Further, by allowing the external connector 21 to be attached to the housing frame 14 without using a spring, components such as the housing frame 14, the external connector 21, and the flexible wiring board 23 can be considered without considering the elastic stress of the spring. Can be produced. Therefore, the inkjet head 2 can be manufactured at low cost.
[0038]
In addition, since the carriage 3 includes the main body side guide 31c for guiding the external connector 21 and the wiring support plate 22, the external connector 21 and the main body side connector 31b can be easily fitted. This also makes it possible to manufacture the inkjet head 2 that can easily fit the external connector 21 and the main body side connector 31b at low cost. Further, since the main body side guide 31c can guide the external connector 21 and the wiring support plate 22 with a simple structure, the inkjet printer 1 that can easily fit the external connector 21 and the main body side connector 31b can be manufactured at low cost.
[0039]
Note that the inkjet printer 1 and the inkjet head 2 according to the present invention are not limited to those described above.
For example, the main body side guide 31c is not limited to the frame-shaped body shown in FIG. 7, but may have a configuration shown in FIG. 9, for example. The main body side guides 31c, 31c shown in FIG. 9 are configured to have tapered portions 31f, 31f, and are arranged such that two opposing side surfaces 31g, 31g have an interval corresponding to the width of the external connector 21. You.
Here, the tapered portion 31f has an inclined surface inclined from the outside to the inside, and has a form capable of engaging with the end of the wiring support plate 22. In this case, the external connector 21 is guided to a position where the external connector 21 can be fitted to the main body side connector 31b by the contact of the wiring support plate 22 with the inclined surfaces of the tapered portions 31f. Further, when the external connector 21 is fitted with the main body side connector 31b, it is held between the main body side guides 31c, 31c as shown in FIG.
[0040]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the mechanism which can easily attach an inkjet head to an inkjet printer can be provided at low cost. Therefore, assembly and maintenance of the ink jet printer can be performed easily and cheaply.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing an inkjet printer 1 according to the present invention.
FIG. 2 is an exploded perspective view of the inkjet head 2 according to the present invention.
FIG. 3 is an exploded perspective view illustrating the inkjet head 2 according to the present invention from a direction different from that of FIG. 2 by almost 180 degrees.
FIG. 4 is a front view (a) and a plan view (b) of a housing frame 14 applied to the inkjet head 2.
5A is a perspective view of a wiring support plate 22 applied to the inkjet head 2, and FIG. 5B is a front view showing a state where the wiring support plate 22 is attached to a connector support 14m.
FIG. 6 is a plan view of a head connection substrate 31 applied to the inkjet printer 1 according to the present invention.
FIG. 7 is a perspective view showing a state in which the external connector 21 is fitted to the main body side connector 31b.
FIG. 8 is a perspective view showing a state in which the inkjet head 2 is attached to the carriage 3.
FIG. 9 is a perspective view of a head connection board 31 according to another embodiment.
FIG. 10 is a perspective view showing a state in which an external connector 21 is fitted to a main body side connector 31b according to another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ink jet printer 2 Ink jet head 3 Carriage 14 Housing frame 14a Base end frame part 14g, 14h Side wall part 14m Connector support part 14q Edge part 14r Notch part 21 External connector (head side connector)
22 Wiring support plate (connector mounting board)
22a Head side guide 31 Head connection board 31a Substrate main body 31c Main body side guide

Claims (3)

An inkjet head that ejects ink,
A head-side connector fitted with the external device-side connector, a connector mounting board to which the head-side connector is fixed, and a connector supporting portion movably supporting the connector mounting board,
The inkjet head according to claim 1, wherein the connector mounting board includes a head-side guide that guides the connector supporting portion. 2. The head-side guide according to claim 1, wherein the head-side guide is located at substantially the same position as the head-side connector or behind the head-side connector in a direction in which the head-side connector is fitted with the external device-side connector. 3. The inkjet head according to the above. An inkjet printer comprising the inkjet head according to claim 1 or claim 2,
A body-side connector fitted with the head-side connector;
An ink jet printer comprising: a main body side guide for guiding the head side connector to a position where the head side connector can be fitted to the main body side connector.

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