WO2015115353A1 - インクジェットヘッド及びインクジェット記録装置 - Google Patents
インクジェットヘッド及びインクジェット記録装置 Download PDFInfo
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- WO2015115353A1 WO2015115353A1 PCT/JP2015/051981 JP2015051981W WO2015115353A1 WO 2015115353 A1 WO2015115353 A1 WO 2015115353A1 JP 2015051981 W JP2015051981 W JP 2015051981W WO 2015115353 A1 WO2015115353 A1 WO 2015115353A1
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- substrate
- common ink
- ink chamber
- ink
- head chip
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Images
Classifications
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B41J2/14201—Structure of print heads with piezoelectric elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
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- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/19—Assembling head units
Definitions
- the present invention relates to an ink jet head and an ink jet recording apparatus.
- an ink jet recording apparatus that forms an image on a recording medium by changing solid ink or gel ink into a liquid state by heat and ejecting the liquid ink from a plurality of nozzle openings toward the recording medium.
- this ink jet recording apparatus since the nature of the ink depends on the temperature, it is necessary to appropriately control the temperature of the ink flow path in the ink jet recording apparatus in order to maintain optimum conditions such as prevention of clogging and maintaining uniformity. .
- an ink supply path to the nozzles on the bottom surface is provided close to both side surfaces of the inkjet head, a heater is provided in contact with the outer surface of the both side surfaces, and the heaters on the both side surfaces are contacted.
- Disclosed is a technique for keeping the temperature of the ink flowing through the ink supply passages and the nozzles on both sides uniform by disposing a heat conduction plate.
- an ink jet head formed by such a technique, an ink chamber is formed on the side opposite to the surface on which the nozzles of the head chip are formed, so that heat is transferred to a heater provided in contact with the outer surface of the ink chamber.
- MEMS Micro Electro Mechanical Systems
- An object of the present invention is to provide an ink jet head and an ink jet recording apparatus capable of effectively heating ink in the vicinity of nozzles of a nozzle substrate and ink in a head chip.
- a nozzle substrate having a plurality of nozzles for ejecting ink;
- An intermediate plate that is provided on the opposite side of the ejection surface from which ink is ejected from the nozzles of the nozzle substrate, and that communicates the nozzles with a pressure chamber that pressurizes ink to be ejected from the nozzles;
- a pressure chamber substrate comprising the pressure chamber;
- a piezoelectric substrate for pressurizing the ink in the pressure chamber is provided, and a spacer substrate having a flow path communicating with the pressure chamber;
- An ink inlet is provided on the side opposite to the side in contact with the spacer substrate, and a wiring board that connects the ink inlet and the flow path of the spacer substrate;
- Head chips that are joined in order,
- a common ink chamber forming member that forms at least a part of a common ink chamber provided on the wiring substrate side of the head chip;
- a heater provided in the common ink chamber forming member;
- a nozzle substrate having a plurality of nozzles for ejecting ink;
- An intermediate plate that is provided on the opposite side of the ejection surface from which ink is ejected from the nozzles of the nozzle substrate, and that communicates the nozzles with a pressure chamber that pressurizes ink to be ejected from the nozzles;
- a pressure chamber substrate comprising the pressure chamber;
- a piezoelectric substrate for pressurizing the ink in the pressure chamber is provided, and a spacer substrate having a flow path communicating with the pressure chamber;
- An ink inlet is provided on the side opposite to the side in contact with the spacer substrate, and a wiring board that connects the ink inlet and the flow path of the spacer substrate;
- Head chips that are joined in order,
- a common ink chamber forming member that forms at least a part of a common ink chamber provided on the wiring substrate side of the head chip;
- a heater provided in the common ink chamber forming member;
- the heat conducting member is A heat transfer plate provided in contact with the heater; A holding member that contacts the heat transfer plate and is joined between the common ink chamber forming member and the wiring substrate to form the common ink chamber together with the common ink chamber forming member and the wiring substrate; A top plate member joined to the holding member and joined to at least a region formed larger than the nozzle substrate in the region of the intermediate plate on the nozzle substrate side; It is characterized by having.
- the heat conducting member is A heat transfer plate provided in contact with the heater; A holding member that contacts the heat transfer plate and is joined between the common ink chamber forming member and the wiring substrate to form the common ink chamber together with the common ink chamber forming member and the wiring substrate; A top plate member joined to the holding member and joined to a region formed larger than at least the nozzle substrate and the intermediate plate among the regions on the nozzle substrate side of the pressure chamber substrate, It is characterized by having.
- the invention according to claim 5 is the ink jet head according to claim 3 or 4, Among the substrates constituting the head chip, at least some of the adjacent substrates are bonded with a heat conductive adhesive.
- the invention described in claim 6 is the inkjet head according to any one of claims 3 to 5,
- the heater is provided in contact with each of the two common ink chamber forming members forming two opposing side surfaces of the common ink chamber;
- the heat transfer plate is arranged in contact with a surface of the heater opposite to the contact surface with the common ink chamber forming member.
- the invention according to claim 7 is the inkjet head according to any one of claims 3 to 6,
- the heat transfer plate is characterized in that an end portion thereof is bent and joined to the holding member.
- the invention according to claim 8 is the ink jet head according to any one of claims 3 to 7,
- the holding member is provided with a groove that fits into the bottom of the common ink chamber forming member.
- An ink jet head according to any one of claims 1 to 8, A temperature measuring unit that measures the temperature of the heat conducting member in the head chip or in contact with the head chip; and A control unit for controlling the operation of the heater based on the measured temperature of the temperature measuring unit;
- An ink jet recording apparatus comprising:
- the invention according to claim 10 is: An ink jet head according to any one of claims 3 to 8, A temperature measuring unit that measures the temperature of the heat conducting member in the head chip or in contact with the head chip; and A control unit for controlling the operation of the heater based on the measured temperature of the temperature measuring unit; With The temperature measurement unit is provided on any one of the holding member, the top plate member, or the spacer substrate.
- the ink jet head there is an effect that the ink near the nozzle of the nozzle substrate and the ink inside the head chip can be effectively heated.
- FIG. 1 is a perspective view showing an entire embodiment of an inkjet recording apparatus of the present invention. It is a block diagram which shows the function structure of an inkjet recording device. It is a perspective view which shows the inkjet head unit of the inkjet recording device of this embodiment. It is the top view which looked at the inkjet head from the opposite side (upper surface) from the nozzle surface. It is sectional drawing cut
- FIG. 5A is a cross-sectional view corresponding to FIG. 5B for a modification of the inkjet head.
- FIG. 1 is a perspective view showing the entire embodiment of the ink jet recording apparatus of the present invention.
- FIG. 2 is a block diagram illustrating a functional configuration of the inkjet recording apparatus 100.
- the inkjet recording apparatus 100 has Y (yellow) from nozzles that extend in a width direction perpendicular to the transport direction and arranged in a predetermined pattern (for example, a staggered arrangement) with respect to the transported recording medium P.
- This is a one-pass inkjet recording apparatus using a line head that forms an image by sequentially ejecting inks of four colors of M (magenta), C (cyan), and K (black).
- the ink jet recording apparatus 100 includes a control unit 10, a transport unit 40, an ink jet head unit 110, and the like.
- the control unit 10 acquires image data to be image formed, print job, and various setting information related to image formation from an external device such as a print server or an external computer, and performs various processes related to image formation according to the print job.
- the control unit 10 includes a CPU (Central Processing Unit) 11, a RAM (Random Access Memory) 12, a storage unit 13, and the like.
- the CPU 11 performs various arithmetic processes and performs overall control of the operation of each unit of the inkjet recording apparatus 100. In addition, the CPU 11 acquires temperature data of the temperature detection unit 54 and controls on / off switching of the heaters 531 and 532.
- the RAM 12 provides a working memory space to the CPU 11 and stores temporary data.
- the storage unit 13 stores image data to be imaged and temporarily stores image data obtained by performing various processes on the image data.
- the storage unit 13 stores various settings related to image formation.
- the storage unit 13 includes a volatile memory such as a DRAM (Dynamic RAM), a nonvolatile memory such as a flash memory, and an HDD (Hard Disk Drive) as appropriate.
- the communication unit 20 receives image data to be formed and various commands and settings related to the print job from an external device such as a print server or another computer, and transmits status information related to image formation to the external device. Interface. Examples of the communication unit 20 include a network card and a module for wireless communication. Further, the communication unit 20 includes a tray and a slot for loading or mounting a removable portable storage medium such as a CD-ROM or a USB memory device, and a reading mechanism thereof.
- the operation display unit 30 includes a display screen that displays menus and statuses related to image formation, and an operation unit that accepts user input operations.
- the display screen is not particularly limited. For example, a dot matrix type liquid crystal display is used, and various display signals are generated by a drive signal generated by a liquid crystal driver based on a control signal output from the control unit 10 (CPU 11). Display is performed.
- a touch sensor is provided so as to overlap the display screen, and the display screen is used as a touch panel.
- the operation unit may be separately provided with a push button switch related to power-on or reset operation. When the operation unit detects a user operation, the operation unit outputs operation information as an electric signal to the operation unit.
- the transport unit 40 moves while the recording medium P placed on the belt 42 is opposed to the bottom surface of the inkjet head unit 110 when the belt 42 transported by the rotary motor 41 rotates.
- a plurality of inkjet heads 50 are arranged below the inkjet head unit 110, and the recording medium P is moved against the plurality of nozzles arranged on the bottom surface of these inkjet heads 50.
- the transport unit 40 may be configured to carry and transport the recording medium P on the outer peripheral surface of the rotating drum. As shown in FIG.
- the transport unit 40 includes a transport control unit 43, and the transport control unit 43 operates based on a control signal from the CPU 11, the operation timing of the inkjet head 50, and the formation image data from the storage unit 13.
- the recording medium P is conveyed in synchronization with the transfer timing to the inkjet head 50 and the timing of the image forming operation in the inkjet head 50.
- the CPU 11 may be configured to perform overall control without separately providing the transport control unit 43.
- the inkjet head unit 110 is provided separately for each of the YMCK4 colors.
- FIG. 3 is a perspective view showing the configuration of the inkjet head unit 110.
- the inkjet head unit 110 includes a carriage 5 including an inkjet head fixing plate 55, a plurality of inkjet heads 50 that eject ink, an ink tank 56 that stores ink to be supplied to each inkjet head 50, and each inkjet from the ink tank 56.
- a flow path (not shown) for supplying ink to the head 50 and a carriage heater 57 are provided.
- the inkjet head fixing plate 55 has a length over the entire width of the recording medium P in the width direction perpendicular to the conveyance direction of the recording medium P by the conveyance unit 40.
- a line head is configured by arranging and fixing on the inkjet head fixing plate 55 in a plurality of rows in the direction.
- the carriage heater 57 is provided on the inkjet head fixing plate 55 and heats the inkjet head fixing plate 55.
- the inkjet head fixing plate 55 is formed of a member having high thermal conductivity, heat can be conducted to the heat conducting member via the fixing member 501 described later.
- the carriage heater 57 may not be provided.
- the carriage heater 57 may be inserted into a hole provided in the inkjet head fixing plate 55 instead of being provided in contact with the upper surface of the inkjet head fixing plate 55.
- the inkjet head 50 is arranged such that the nozzle surface on which a plurality of nozzles are arranged is opposed to the conveyance surface by the conveyance unit 40.
- the inkjet head 50 includes a head drive unit 51, a temperature detection unit 54 (temperature measurement unit), a heating switching unit 53, heaters 531 and 532, and the like.
- the head drive unit 51 outputs a drive voltage signal for operating each nozzle corresponding to the image data transmitted from the storage unit 13 based on the control signal from the CPU 11 and the pulse signal for setting the drive timing. Ink is ejected onto the recording medium P.
- the temperature detector 54 measures the heating status by the heaters 531 and 532 (see FIG. 4) provided in the inkjet head 50.
- a thermistor thermometer is used for the temperature detector 54.
- the temperature detection unit 54 measures the temperature at a position close to the nozzle that ejects ink. The arrangement of the temperature detector 54 will be described in detail later.
- the heating switching unit 53 includes a switch for turning on / off the power to the heaters 531 and 532.
- the heating switching unit 53 turns on and off the energization of the heaters 531 and 532 at an appropriate timing under the control of the control unit 10 (CPU 11) based on the temperature measured by the temperature detection unit 54, so that the common ink chamber 520 to the nozzles. Keep the ink temperature at a reasonable level.
- FIG. 4 is a plan view of the inkjet head 50 as viewed from the side opposite to the nozzle surface (upper surface).
- 5A shows a cross-sectional view cut along a cross-sectional line AA in FIG. 4
- FIG. 5B shows a cross-sectional view cut along a cross-sectional line BB in FIG.
- a common ink chamber forming member 520a is connected to the head chip 510 via a holding member 505 on the top of a head chip 510 including a nozzle substrate 517 provided with nozzles and a wiring substrate 511 provided with ink inlets.
- a common ink chamber 520 (manifold) is formed by the space.
- the holding member 505 is fixed to the fixing member 501 and the top plate member 504.
- inlets 521 and 522 used for supplying ink and an outlet 523 used for discharging ink are provided above the common ink chamber 520 (upper surface of the common ink chamber forming member 520a).
- the fixing member 501 has attachment portions 502 and 503, and the attachment members 502 and 503 are attached to the carriage 5 with the fixing member 501 and the inkjet head fixing plate 55 in contact with each other.
- the common ink chamber 520 may be configured such that two common ink chamber forming members 520a are arranged to face each other and bonded to each other, and each is bonded to the head chip 510 via the holding member 505. Further, there may be a portion where the common ink chamber forming member 520a and the head chip 510 are directly joined.
- the common ink chamber 520 is formed by joining the members including the common ink chamber forming member 520a and the head chip 510.
- the upper portion, the side surface, the wall surface, and the surface of the common ink chamber 520 indicate a part of the common ink chamber forming member 520a.
- heaters 531 and 532 are provided in contact with the outer surface of the common ink chamber forming member 520a on two opposite surfaces that are different from the direction in which the wiring substrate 511 extends. Further, a heat transfer plate 533 is provided so as to cover the outside of the heaters 531 and 532, and the heat transfer plate 533 is connected to a portion covering the heater 531 and the heater 532 across the upper part of the common ink chamber 520. Yes.
- a common ink chamber 520 is provided above the head chip 510.
- the heaters 531 and 532 are provided in contact with the common ink chamber forming members 520a forming the two opposing surfaces of the common ink chamber 520, so that the ink inside the common ink chamber 520 is heated with good balance.
- a heat transfer plate 533 is provided in contact with the outer surfaces of the heaters 531 and 532, and the heat of the heaters 531 and 532 is transferred to the heat transfer plate 533 along with the common ink chamber forming member 520a.
- the lower end of the heat transfer plate 533 is connected to the holding member 505.
- the holding member 505 is fixed to the fixing member 501 and the top plate member 504. Accordingly, the holding member 505, the fixing member 501, and the top plate member 504 are formed of a heat conductive member, so that heat is also transmitted to the top plate member 504 and the fixing member 501 through the holding member 505.
- FIG. 6A is a diagram illustrating a modification of FIG. 5A.
- FIG. 6B is a cross-sectional view showing a state where the inkjet head 50 of FIG. 5B is fixed to the inkjet head fixing plate 55. As shown in FIG. 6A, the lower end of the heat transfer plate 533 can be bent and arranged so that the contact area with the holding member 505 is increased.
- the lower end of the heat transfer plate 533 is joined with the holding member 505 between the top plate member 504 and the fixing member 501, so that the holding member 505, the top plate member 504, and the fixing member 501 are joined from the heat transfer plate 533. This is preferable because heat is transferred more efficiently.
- the holding member 505 a material having high thermal conductivity, that is, a metal (alloy) member is preferably used. Since the holding member 505 comes into contact with the ink flowing from the common ink chamber 520 to the ink inlet of the wiring board 511, it is more preferable to use a stainless steel plate (for example, SUS304) from the viewpoint that ink resistance is required. . 5A and 5B, the holding member 505 is provided between the head chip 510 and the common ink chamber forming member 520a, and is joined to the heat transfer plate 533. Therefore, the ink flowing from the common ink chamber 520 to the ink inlet of the wiring board 511 is effectively heated via the holding member 505 by the heat transferred from the heat transfer plate 533.
- a material having high thermal conductivity that is, a metal (alloy) member is preferably used. Since the holding member 505 comes into contact with the ink flowing from the common ink chamber 520 to the ink inlet of the wiring board 511, it is more prefer
- the holding member 505 is provided with a groove 505 b that fits with the bottom of the common ink chamber forming member 520 a.
- this groove not only the bottom surface of the common ink chamber forming member 520a but also the bottom portion of the common ink chamber forming member, that is, the inner and outer surfaces of the common ink chamber forming member 520a are in contact with the holding member 505. Become. Therefore, the common ink chamber forming member 520a and the head chip 510 that are positioned and joined are more preferable because they do not shift even when an external force such as vibration during printing is applied.
- top plate member 504 a material having high thermal conductivity, that is, a metal (alloy) member is preferably used. Since the mist generated when ink is ejected from the nozzles adheres to the top plate member 504, it is more preferable to use a stainless steel plate (for example, SUS316) from the viewpoint of ink resistance.
- the top plate member 504 is joined to the lower surface of the holding member 505, that is, the side in contact with the head chip 510. Further, as shown in FIGS.
- the nozzle substrate 517 is more than the intermediate plate 516 (at least in two directions facing the common ink chamber 520 and the wiring substrate 511 is
- the intermediate plate 516 protrudes from the nozzle substrate 517 when the head chip 510 is viewed in plan view from the bonding surface side with the nozzle substrate 517.
- the nozzle substrate 517 may have a shape in which all or some of the four sides are shorter than the intermediate plate 516, or may have a shape in which notches are provided on the four sides or a part thereof. It may be good or a combination thereof.
- the top plate member 504 is formed in a shape that fits with the protruding portion of the intermediate plate 516 and is joined to each other.
- the top plate member 504 prevents the mist that is scattered when ink is ejected from the nozzles from adhering to the wiring board 511, so that the wiring can be protected from the mist.
- the top plate member 504 is provided so as to be fitted to the unevenness of the head chip 510, the top plate member 504 is positioned in addition to the holding member 505, and the displacement of the joined head chip 510 is effective. Can be fixed and prevented.
- the fixing member 501 a material having high thermal conductivity, that is, a metal (alloy) member is preferably used.
- a metal (alloy) member is preferably used.
- the fixing member 501 is joined to the surface of the holding member 505 opposite to the surface to be joined to the top plate member 504.
- the fixing member 501 has a lower surface of the mounting portions 502 and 503, that is, a nozzle surface side of the inkjet head 50, and an upper surface of the inkjet head fixing plate 55 in the carriage 5, that is, a surface on the common ink chamber 520 side of the inkjet head 50. It is positioned and fixed in contact. As shown in FIG. 3, when the carriage heater 57 is provided on the inkjet head fixing plate 55, the heat from the inkjet head fixing plate 55 heated by the carriage heater 57 is held via the fixing member 501. It is transmitted to the member 505 and the top plate member 504.
- the heat of the heaters 531 and 532 is transferred from the heat transfer plate 533 to the holding member 505 by the heat transfer plate 533, the holding member 505, and the top plate member 504 formed of the heat conductive member, and the ink is supplied from the common ink chamber 520.
- the ink flowing to the inlet can be effectively heated.
- the top plate member 504 and the fixing member 501 are joined to the holding member 505, and the top plate member 504 is fitted to the unevenness of the head chip 510. Therefore, the heat efficiently transferred to the top plate member 504 and the fixing member 501 through the holding member 505 effectively transfers the heat to the inside of the head chip 510, particularly to the nozzles provided on the nozzle substrate 517. I can do it.
- the heat transfer plate 533, the top plate member 504, and the holding member 505 are described as being used.
- the heat conducting member it is preferable to configure the heat conducting member as a separate member because the ink jet head 50 can be easily assembled.
- the present invention is not limited to the combination of these heat conducting members.
- the hole 512b is provided in the head chip 510, and the temperature detection unit 54 (thermistor thermometer) is inserted into the hole 512b to contact the inner wall of the hole 512b.
- the temperature detection unit 54 thermometer
- FIG. 7 shows a cross-sectional view of one nozzle of the head chip 510.
- the head chip 510 of the inkjet recording apparatus 100 includes, in order from the top, a wiring substrate 511, a spacer substrate 512, a vibration plate 514, a pressure chamber substrate 515, an intermediate plate 516, and a nozzle substrate 517. It is formed by stacking. These stacked substrates are bonded with an appropriate adhesive member according to the material of the substrates on both sides.
- a heat conductive adhesive having a high thermal conductivity capable of efficiently transferring heat to the inside of the head chip 510 is used, so that the ink inside the head chip 510 can be used. Can be heated more easily.
- various products marketed with high heat conductivity can be used. For example, Scotch Weld (registered trademark) thermally conductive epoxy manufactured by 3M Company (registered trademark). Adhesives and NO. 9882 double-sided tape.
- the nozzle substrate 517 is a silicon substrate and is located in the lowermost layer of the head chip 510.
- a plurality of nozzles 517 a are formed on the nozzle substrate 517. These nozzles 517a are arranged in a staggered pattern, for example, and are arranged extending in the left-right direction (width direction) in FIG. 5A.
- the intermediate plate 516 is a glass substrate, and is laminated and bonded to the upper surface of the nozzle substrate 517 (the surface side opposite to the ink ejection surface from the nozzle 517a).
- a through hole 516a communicating with the nozzle 517a of the nozzle substrate 517 is formed.
- a groove portion 516 b forming a communication hole is formed on the upper surface of the intermediate plate 516.
- the pressure chamber substrate 515 is a silicon substrate, and is provided with a large through hole 515a and a small through hole 515b.
- the large through-hole 515a forms a pressure chamber for pressurizing ink by covering the upper surface with the vibration plate 514.
- the pressure chamber communicates with the through hole 516a and the groove 516b of the intermediate plate 516.
- the small through hole 515b communicates with the groove 516b.
- the diaphragm 514 is laminated and bonded to the upper surface of the pressure chamber substrate 515 to cover the upper surface side opening of the through hole 515a forming the pressure chamber.
- An oxide film is formed on the surface of the vibration plate 514 to be covered and protected from ink and electricity.
- the diaphragm 514 has a through hole 514a that communicates with the through hole 515b.
- the spacer substrate 512 is laminated on the upper surface of the vibration plate 514.
- the spacer substrate 512 is a metal (alloy member) having a high thermal conductivity, and is preferably formed of a low thermal expansion coefficient, for example, an alloy using Ni such as 42 alloy.
- the spacer substrate 512 has a space for accommodating the piezoelectric element 513 therein.
- the piezoelectric element 513 is made of, for example, PZT (lead zirconate titanate), and is provided in contact with the diaphragm 514 in a range corresponding to the upper portion of the pressure chamber.
- the piezoelectric element 513 is connected to the wiring 511d through the stud bump 513a and the solder 513b.
- the piezoelectric element 513 is deformed by applying a predetermined voltage from the wiring 511d to vibrate the vibration plate 514, and the ink in the pressure chamber is discharged. Pressurize.
- the spacer substrate 512 is provided with a through hole 512a that communicates with the through hole 514a.
- the spacer substrate 512 is provided with the above-described hole portion 512b, and the temperature detecting portion 54 is inserted and disposed therein.
- the hole 512b is close to the pressure chamber substrate 515 (that is, the ink in the pressure chamber) in the head chip 510, and is a member (such as a metal (alloy member)) that efficiently transmits the temperature to the inside (a metal (alloy member)).
- a member such as a metal (alloy member)
- One or several holes 512b and temperature detectors 54 may be provided for the entire spacer substrate 512, and need not be provided for each nozzle.
- the wiring substrate 511 is provided with individual wiring connected to the solder 513b on the lower surface of the silicon substrate and common wiring connected to a common electrode (not shown), and is covered with an insulating layer 511b.
- the upper surface of the wiring board 511 is covered with an insulating layer 511a.
- silicon oxide films are used for the insulating layers 511a and 511b.
- the wiring board 511 is provided with a through hole 511c communicating with the through hole 512a, and is opened into the common ink chamber 520 on the upper surface of the head chip 510 to form an ink inlet.
- FIG. 8 is a flowchart showing a control procedure by the control unit 10 (CPU 11) of the heater control process executed in the inkjet recording apparatus 100 of the present embodiment.
- This heater control process is started when the power supply of the inkjet recording apparatus 100 is turned on, and is continuously executed while the power supply is turned on.
- the control unit 10 When the heater control process is started, the control unit 10 first acquires the measured temperature from the temperature detection unit 54 (step S101). The control unit 10 determines whether or not the acquired temperature is equal to or higher than a reference temperature (here, for example, 80 ° C.) (step S102). If it is determined that the temperature is equal to or higher than the reference temperature (“YES” in step S102), the control unit 10 outputs a control signal to the heating switching unit 53 to turn off the heaters 531, 532 (step S103), and then Then, the process proceeds to step S104.
- a reference temperature here, for example 80 ° C.
- step S102 If it is determined that the temperature is not equal to or higher than the reference temperature (“NO” in step S102), the process of the control unit 10 proceeds to step S104 as it is.
- step S104 the control unit 10 determines whether or not the measured temperature is lower than the reference temperature (step S104). When it is determined that the temperature is lower than the reference temperature (“YES” in step S104), the control unit 10 sends a control signal to the heating switching unit 53 to turn on the heaters 531, 532 (step S105), and then The process of the control unit 10 returns to step S101. When it is determined that the temperature is not lower than the reference temperature (or higher) (“NO” in step S104), the control unit 10 returns the process to step S101.
- the head chip 510 has a laminated structure, and the through holes 511c, 512a, 514a, 515a, 515b, 516a and the groove 516b are communicated with each other so that the ink flow from the ink inlet to the nozzle 517a is performed.
- a road is formed.
- the heat of the heaters 531 and 532 quickly and efficiently heats the head chip 510 via the holding member 505 that contacts the heat transfer plate 533.
- the heat transferred to the head chip 510 is more efficiently passed through the spacer chip 512 formed of a heat conductive adhesive or a metal material (heat conductive material), particularly inside the head chip 510, particularly in the pressure chamber (through hole). 515a) and the ink inside thereof.
- the ink temperature can be adjusted according to the temperature of the ink inside the head chip 510 as compared with the conventional case. As described above, the ink temperature inside the head chip 510 is closer to the temperature of the common ink chamber 520 than before, and the time lag is changed to be small. And the ink temperature inside the common ink chamber 520 can be easily and appropriately controlled by a single temperature measurement.
- a metal member may be used in addition to the spacer substrate 512, and a hole may be provided in the substrate, and the temperature detection unit 54 may be inserted.
- the selection of this substrate depends on the elasticity, rigidity, It needs to be made according to various factors such as temperature, ink resistance, cost, weight, and the like.
- [Modification] 9A and 9B are cross-sectional views taken at the same positions as the cross-sectional views shown in FIG. 5A and FIG.
- the heaters 531a and 532a and the heat transfer plate 533a are attached to the common ink chamber 520 on the side surface that is 90 degrees different from the above-described embodiment.
- the intermediate plate 516 is also formed smaller than the pressure chamber substrate 515 in a plan view (bottom view) from the lower surface of the head chip 510.
- a hole 505a is provided in the holding member 505 instead of the hole 512b, and the temperature detection unit 54 is inserted and disposed in the hole 505a.
- the intermediate plate 516 is illustrated in the same size as the nozzle substrate 517, it may be an intermediate size between the nozzle substrate 517 and the pressure chamber substrate 515.
- the wiring connected to the head chip 510 is drawn around the holding member 505.
- the attachment positions of the heaters 531a and 532a can be appropriately set with respect to the common ink chamber forming member 520a.
- the holding member 505 faces the common ink chamber 520 and is disposed in contact with the head chip 510, and receives heat from the heaters 531a and 532a from the heat transfer plate 533a. Therefore, the holding member 505 detects the temperature.
- the unit 54 By causing the unit 54 to measure the temperature, the ink temperature in the head chip 510 and the ink temperature in the common ink chamber 520 can be more appropriately reflected and collectively controlled.
- the intermediate plate 516 is formed smaller than the pressure chamber substrate 515 when viewed from the lower surface of the head chip 510, so that the inside of the head chip 510, particularly in the pressure chamber substrate, can be further reduced. Since heat can be transferred to the ink, the inside of the head chip 510 can be quickly and effectively heated.
- the nozzle substrate 517 having a plurality of nozzles 517a that eject ink, and the side opposite to the ejection surface from which the ink is ejected from the nozzles 517a of the nozzle substrate 517
- An intermediate plate 516 communicating with a nozzle 517a and a pressure chamber for pressurizing ink discharged from the nozzle 517a, a pressure chamber substrate 515 having a pressure chamber, and a piezoelectric element 513 for pressurizing ink in the pressure chamber.
- a wiring board 511 that is provided with an inlet for supplying ink to each of the plurality of nozzles on the side opposite to the side in contact with the spacer board 512, and that communicates the ink inlet with the pressure chamber.
- the head chips 510 stacked in order and at least a part of the head chips 510 are indirectly bonded to the wiring substrate 511, and the wiring Comprising a common ink chamber forming member 520a forming the common ink chamber 520 with the plate 511, a heater 531, 532 provided in contact with the common ink chamber forming member 520a, a.
- the nozzle substrate 517 is formed to be smaller than the intermediate plate 516, contacts the heaters 531, 532, and sandwiches the head chip 510 with the nozzle substrate 517.
- a heat conductive member heat transfer plate 533, holding member 505, top plate member 504 joined to at least a part of the wiring substrate 511, and the wiring substrate 511 and the common ink chamber forming member 520a are at least one.
- the heat conductive member is a head of the side surface of the nozzle substrate 517 and the region (surface) of the intermediate plate 516 on the nozzle substrate 517 side.
- the intermediate plate 516 is formed larger than the nozzle substrate 517 in plan view from the nozzle substrate 517 side of the chip 510. It is at least bonded to a region protruding by. That is, since the heat of the heaters 531 and 532 is efficiently transmitted by the heat conducting member, the ink near the nozzle 517a of the nozzle substrate 517 and the ink inside the head chip 510 can be effectively heated.
- the spacer substrate 512 is formed using a metal member, the heat transferred from the heat transfer plate 533 to the head chip 510 is more efficiently transferred to the head.
- the ink can be heated by being transmitted to the inside of the chip 510.
- the spacer substrate 512 is in contact with the heat transfer plate 533 directly or through the holding member 505
- the temperature is transmitted to the inside of the head chip 510 more quickly and reliably.
- heat is transferred to the inside of the head chip 510 in a layer close to the pressure chamber substrate 515, the ink is more easily heated inside the head chip 510.
- the heat conduction member is divided into a heat transfer plate 533, a holding member 505, and a top plate member 504, and the heat of the heaters 531 and 532 is transmitted to the inside of the head chip 510 together with the common ink chamber 520, so that efficient heat transfer is achieved.
- a structure can be easily assembled.
- the adjacent substrates stacked in the head chip 510 is bonded to the head chip 510 from the heat transfer plate 533 via the fixing member 501 by bonding with a heat conductive adhesive. Since the heat is easily transferred to the inside of the head chip 510, the ink inside the head chip 510 can be made closer to the ink in the common ink chamber 520 and have a similar temperature change tendency.
- the heaters 531 and 532 are provided in contact with the common ink chamber forming member 520a forming two opposing side surfaces of the common ink chamber 520, respectively, and the heat transfer plate 533 is provided with the common ink chamber forming member 520a of the heaters 531 and 532.
- the ink in the common ink chamber 520 can be easily heated in a well-balanced manner. Further, since heat can be transferred from the heaters 531 and 532 to the wall surface of the common ink chamber 520 and the heat transfer plate 533 substantially uniformly, the ink temperature in the head chip 510 can be quickly changed to the ink temperature in the common ink chamber 520. You can get closer. Therefore, the temperature can be easily controlled collectively by measuring the temperature of the head chip 510.
- the head chip 510 and the common ink chamber forming member 520a are subjected to an external force such as vibration during printing. Is less likely to deviate from the position where the positioning is fixed, and can be used more stably.
- the inkjet head unit 110 includes a carriage 5, a carriage heater 57 provided in contact with the carriage 5, and a plurality of inkjet heads 50 arranged and fixed to the inkjet head fixing plate 55 of the carriage 5. Since the head fixing plate 55 is formed of a heat conductive member and joined to the fixing member 501, the heat of the carriage heater 57 is transmitted to the head chip 510 via the inkjet head fixing plate 55 and the fixing member 501, and heating is performed. I can do it.
- the inkjet recording apparatus 100 includes an inkjet head 50, a temperature detection unit 54 that measures the temperature of the heat conduction member inside or in contact with the head chip 510, and a heating switching unit 53 based on the measured temperature. And a control unit 10 that controls to turn on and off the energization of the heaters 531 and 532 by operating.
- the ink in the common ink chamber 520 and the ink in the head chip 510 are combined by simple control based on the temperature measured in the member that transmits heat at a position close to the nozzle that ejects the ink. Can be easily maintained at an appropriate temperature.
- the temperature near the nozzle can be maintained more accurately, it is possible to preferably form an image while maintaining the quality of the ink to be ejected.
- the present invention is not limited to the above-described embodiment, and various modifications can be made.
- the hole 512b is provided in the head chip 510, in particular, the spacer substrate 512 made of a metal member, and the temperature is measured by the temperature detection unit 54 inserted into the hole 512b.
- the temperature in accordance with the temperature of the ink flowing in the chip 510 is measured, but the temperature detection unit 54 is embedded in the groove provided on the surface instead of the hole, or simply on the side surface of the spacer substrate 512.
- the temperature of the head chip 510 can also be obtained by providing the temperature detection unit 54 so as to be in contact therewith.
- the temperature detection unit 54 is in contact with the holding member 505 in contact with the head chip 510 as an example.
- Other portions such as the top plate member 504 may be used as long as they are portions of a heat conducting member that quickly transfers heat from the plate 533.
- temperature control is performed collectively based on temperature measurement data that is closer to the ink temperature in the head chip 510 than in the past and that is more quickly linked to the temperature change in the common ink chamber 520. Can be done.
- the spacer substrate 512 is formed of a metal member.
- the spacer substrate 512 may not be a metal member.
- heat may be transmitted from the holding member 505 to the inside of the head chip 510 via the thermal conductive adhesive. If there is no problem in the combination of the set temperature and the electric wiring member, the electric wiring may be heated.
- a wiring using a heat conducting member for heat transfer may be separately provided on the head chip 510. Since the heat conducting member related to such heat conducting wiring is not required to have strength or corrosion resistance to ink according to the wiring position, etc., in this case, not only the metal member but also various known heat conducting resins. It may be.
- a uniform temperature for example, 80 ° C.
- the reference temperature for turning off and the reference temperature for turning on are different. Also good. For example, it may be turned off at 80 ° C. and turned on at 75 ° C.
- the thermistor thermometer is used as the temperature detection unit 54.
- temperature measurement may be performed using a small temperature sensor such as another IC chip.
- the heating control is performed by the control unit 10 (CPU 11).
- a heater control control unit may be separately provided inside the inkjet head 50.
- the planar nozzle substrate 517, the wiring substrate 511, and the head chip 510 having a laminated structure in which the respective substrates provided therebetween are overlapped are described as examples.
- Each substrate is not limited to a simple flat plate.
- a common ink chamber 520 is stacked on the upper surface of the head chip 510 opposite to the lower surface on which the nozzles are provided, and ink is supplied from the common ink chamber 520 to the opening of each nozzle via the ink flow path.
- a substrate having a concavo-convex structure in the vertical direction may be used, or a plurality of local substrates may be arranged in the horizontal (front / rear / left / right) direction.
- the heater is provided in contact with the common ink chamber forming member 520a that forms two opposing surfaces of the common ink chamber 520.
- the heaters are provided on all four common ink chamber forming members 520a. It may be provided at the four corners. Further, if the ink can be heated in a balanced manner, the common ink chamber forming member 520a that forms the three surfaces of the common ink chamber 520 according to the shape of the ink chamber or the like, or the common ink chamber 520 It may be at the top.
- the heaters 531 and 532 are not limited to plate-shaped heaters that are in contact with the common ink chamber forming member 520a on the surface, and a plurality of rod heaters may be arranged to contact the common ink chamber forming member 520a.
- the heaters 531 and 532 are provided in contact with the common ink chamber forming member 520a, and the heat transfer plate 533 is further provided on the outside thereof.
- the reverse order that is, the common ink chamber forming member is provided. Even in a structure in which a heat transfer plate 533 is provided in contact with 520a and heaters 531 and 532 are provided outside the heat transfer plate 533, the common ink chamber 520 and the head chip 510 have less uneven heating control. Can be done.
- the nozzle substrate 517 and the top plate member 504 are not provided separately, but include a nozzle plate that includes a metal member or is formed of a metal member, and is provided directly from the heat transfer plate 533 or via a fixing member 501. It is good also as a structure heated. In this case, in particular, the nozzle plate needs to be formed so that the shape and position of the nozzle do not change during heating.
- the lower end portion of the heat transfer plate 533 is bent and fitted with the fixing member 501 and the top plate member 504, or the contact area is increased, but this is not limitative.
- the lower end shape of the heat transfer plate 533 may be formed thick, or conversely, the shape of the fixing member 501 may be changed to sandwich the heat transfer plate 533 from both sides.
- a line head type ink jet recording apparatus has been described as an example.
- a serial head type ink jet recording apparatus may be used.
- specific details such as the structure of the head chip 510 shown in the above embodiment and the arrangement and positional relationship of the heaters 531, 532, the heat transfer plate 533, the fixing member 501, and the top plate member 504 are described in the present invention. Changes can be made as appropriate without departing from the spirit of the invention.
- the present invention can be used for an inkjet head and an inkjet recording apparatus.
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Abstract
Description
インクを吐出するノズルを複数備えたノズル基板と、
前記ノズル基板のノズルからインクが吐出される吐出面と反対側に設けられ、前記ノズルと、前記ノズルから吐出させるインクを加圧する圧力室とを連通させる中間プレートと、
前記圧力室を備える圧力室基板と、
前記圧力室のインクに対して加圧するための圧電素子が設けられると共に、前記圧力室に連通する流路を備えるスペーサー基板と、
前記スペーサー基板と接する側とは反対側にインク流入口が設けられ、前記インク流入口と前記スペーサー基板の流路とを連通する配線基板と、
が順に接合されるヘッドチップと、
前記ヘッドチップの前記配線基板側に設けられる共通インク室の少なくとも一部を形成する共通インク室形成部材と、
前記共通インク室形成部材に設けられるヒーターと、
を備えるインクジェットヘッドであって、
前記ヘッドチップを前記ノズル基板の側から平面視した場合に、前記ノズル基板が前記中間プレートよりも小さくなるように形成され、
前記ヒーターに接して設けられると共に、前記ヘッドチップを挟んで前記ノズル基板と前記配線基板との少なくとも一部に接合される熱伝導部材が設けられ、
前記配線基板と前記共通インク室形成部材とが前記熱伝導部材を介して接合されることによって共通インク室が形成されると共に、前記熱伝導部材は、前記ノズル基板の側面、及び、前記中間プレートの前記ノズル基板側の領域のうち少なくとも、前記ヘッドチップを前記ノズル基板の側から平面視した場合に前記中間プレートが前記ノズル基板よりも大きく形成された領域に接合されている
ことを特徴としている。
インクを吐出するノズルを複数備えたノズル基板と、
前記ノズル基板のノズルからインクが吐出される吐出面と反対側に設けられ、前記ノズルと、前記ノズルから吐出させるインクを加圧する圧力室とを連通させる中間プレートと、
前記圧力室を備える圧力室基板と、
前記圧力室のインクに対して加圧するための圧電素子が設けられると共に、前記圧力室に連通する流路を備えるスペーサー基板と、
前記スペーサー基板と接する側とは反対側にインク流入口が設けられ、前記インク流入口と前記スペーサー基板の流路とを連通する配線基板と、
が順に接合されるヘッドチップと、
前記ヘッドチップの前記配線基板側に設けられる共通インク室の少なくとも一部を形成する共通インク室形成部材と、
前記共通インク室形成部材に設けられるヒーターと、
を備えるインクジェットヘッドであって、
前記ヘッドチップを前記ノズル基板の側から平面視した場合に、前記ノズル基板及び前記中間プレートが前記圧力室基板よりも小さくなるように形成され、
前記ヒーターに接して設けられると共に、前記ヘッドチップを挟んで前記ノズル基板と前記配線基板との少なくとも一部に接合される熱伝導部材が設けられ、
前記配線基板と前記共通インク室形成部材とが前記熱伝導部材を介して接合されることによって共通インク室が形成されると共に、前記熱伝導部材は、前記ノズル基板及び前記中間プレートの側面、並びに前記圧力室基板の前記ノズル基板側の領域のうち少なくとも、前記ヘッドチップを前記ノズル基板の側から平面視した場合に前記ノズル基板及び前記中間プレートよりも大きく形成された領域に接合されている
ことを特徴としている。
前記熱伝導部材は、
前記ヒーターに接触して設けられる伝熱板と、
前記伝熱板に接触し、且つ、前記共通インク室形成部材及び前記配線基板の間に接合されて前記共通インク室形成部材及び前記配線基板と共に前記共通インク室を形成する保持部材と、
前記保持部材と接合され、前記中間プレートの前記ノズル基板側の領域のうち、少なくとも前記ノズル基板よりも大きく形成された領域に接合されている天板部材と、
を備えることを特徴としている。
前記熱伝導部材は、
前記ヒーターに接触して設けられる伝熱板と、
前記伝熱板に接触し、且つ、前記共通インク室形成部材及び前記配線基板の間に接合されて前記共通インク室形成部材及び前記配線基板と共に前記共通インク室を形成する保持部材と、
前記保持部材と接合され、前記圧力室基板の前記ノズル基板側の領域のうち、少なくとも前記ノズル基板及び前記中間プレートよりも大きく形成された領域に接合されている天板部材と、
を備えることを特徴としている。
前記ヘッドチップを構成する基板のうち少なくとも一部の隣接する基板同士は、熱伝導性接着剤で接合されていることを特徴としている。
前記ヒーターは、前記共通インク室の対向する2側面をなす2つの前記共通インク室形成部材にそれぞれ接触して設けられ、
前記伝熱板は、前記ヒーターの前記共通インク室形成部材との接触面とは反対側の面と接触して配置されている
ことを特徴としている。
前記伝熱板は、その端部が折り曲げられて前記保持部材と接合されることを特徴としている。
前記保持部材には、前記共通インク室形成部材の底部と嵌合する溝部が設けられていることを特徴としている。
請求項1~8の何れか一項に記載のインクジェットヘッドと、
前記ヘッドチップ内又は前記ヘッドチップに接する前記熱伝導部材の温度を計測する温度計測部と、
前記温度計測部の計測温度に基づいて前記ヒーターの動作を制御する制御部と、
を備えることを特徴とするインクジェット記録装置である。
請求項3~8の何れか一項に記載のインクジェットヘッドと、
前記ヘッドチップ内又は前記ヘッドチップに接する前記熱伝導部材の温度を計測する温度計測部と、
前記温度計測部の計測温度に基づいて前記ヒーターの動作を制御する制御部と、
を備え、
前記温度計測部は、前記保持部材、前記天板部材又は前記スペーサー基板の何れかに設けられる
ことを特徴としている。
図1は、本発明のインクジェット記録装置の実施形態の全体を示す斜視図である。また、図2は、インクジェット記録装置100の機能構成を示すブロック図である。
インクジェット記録装置100は、制御部10と、搬送部40と、インクジェットヘッドユニット110などを備える。
RAM12は、CPU11に作業用のメモリー空間を提供し、一時データを記憶する。記憶部13は、画像形成対象の画像データを記憶し、また、この画像データに対して各種処理を行った画像データを一時記憶させる。
また、記憶部13は、画像形成に係る各種設定を記憶する。記憶部13は、DRAM(Dynamic RAM)といった揮発性メモリーと、フラッシュメモリーといった不揮発性メモリー及びHDD(Hard Disk Drive)とを適宜組み合わせて有している。
また、操作部としては、タッチセンサーが表示画面に対して重ねて設けられ、当該表示画面がタッチパネルとして用いられる。また、操作部には、電源投入やリセット動作などに係る押しボタンスイッチが別途設けられていても良い。操作部は、ユーザーの操作を検出すると、操作情報を電気信号として操作部に出力する。
図3は、インクジェットヘッドユニット110の構成を示す斜視図である。
インクジェットヘッドユニット110は、インクジェットヘッド固定板55を備えるキャリッジ5と、インクを吐出する複数のインクジェットヘッド50と、各インクジェットヘッド50に供給するインクを貯留するインクタンク56と、インクタンク56から各インクジェットヘッド50にインクを供給するための流路(図示略)と、キャリッジヒーター57とを備えている。
インクジェットヘッド固定板55は、搬送部40による記録媒体Pの搬送方向に垂直な幅方向に、当該記録媒体Pの全幅に亘る長さを有しており、複数のインクジェットヘッド50は、例えば、幅方向に複数の列をなして当該インクジェットヘッド固定板55上に配列、固定されてラインヘッドが構成されている。
キャリッジヒーター57は、インクジェットヘッド固定板55上に設けられて当該インクジェットヘッド固定板55を加熱する。この場合、インクジェットヘッド固定板55が熱伝導度の高い部材で形成されることで、後述する固定部材501を介して熱伝導部材に熱を伝導させることが出来る。なお、このキャリッジヒーター57が設けられていなくても良い。また、このキャリッジヒーター57は、インクジェットヘッド固定板55の上面に接して設けられる代わりに、インクジェットヘッド固定板55に設けられた孔部内に挿入されても良い。
図4は、インクジェットヘッド50をノズル面とは反対側(上面)から見た平面図である。また、図5Aには、図4の断面線AAで切断した断面図を示し、図5Bには、図4の断面線BBで切断した断面図を示す。
ここで、共通インク室520は、2つの共通インク室形成部材520aが対向配置されて互いに接合されると共に、各々保持部材505を介してヘッドチップ510と接合されて構成されても良い。また、共通インク室形成部材520aとヘッドチップ510とが直接接合される部分があっても良い。
上述のように、本発明では、共通インク室520は、共通インク室形成部材520aとヘッドチップ510とを含む部材が接合されることによって形成される。以下、共通インク室520の上部、側面、壁面及び面とは、共通インク室形成部材520aのそれぞれ一部を示す。
図6Aは、図5Aの変形例を示す図である。また、図6Bは、図5Bのインクジェットヘッド50がインクジェットヘッド固定板55に固定された状態を示す断面図である。
図6Aに示すように、伝熱板533の下端は、保持部材505との接触面積が大きくなるように折り曲げて配置することが出来る。また、この場合、伝熱板533の下端を保持部材505と共に天板部材504と固定部材501とで挟んで接合することにより、伝熱板533から保持部材505、天板部材504及び固定部材501へと、より効率的に熱が伝わるので好ましい。
また、保持部材505には、図5A及び図5Bに示されているように、共通インク室形成部材520aの底部と嵌合する溝部505bが設けられている。この溝部により、共通インク室形成部材520aの底面だけではなく、共通インク室形成部材の底部、即ち、共通インク室形成部材520aの内側及び外側の面のそれぞれ一部も保持部材505と接することになる。従って、位置決めされて接合された共通インク室形成部材520aとヘッドチップ510とは、外力、例えば、印刷時の振動などが加わってもずれることがなく、より好ましい。
天板部材504は、保持部材505の下面、即ち、ヘッドチップ510に接する側に接合される。また、図5A及び図5Bに示されているように、ヘッドチップ510において、ノズル基板517は、中間プレート516よりも(少なくとも共通インク室520を挟んで対向する2方向であって配線基板511が延在する方向の一部において)小さく形成されており、中間プレート516は、ヘッドチップ510をノズル基板517との接合面側から平面視した場合にノズル基板517からはみ出している。この場合、ノズル基板517は、例えば、四辺の全て又は一部の長さが中間プレート516より短い形状であっても良いし、四辺又はその一部に切欠部が設けられた形状であっても良いし、或いは、これらの組み合わせであっても良い。天板部材504は、この中間プレート516のはみ出している部分と嵌合する形状で形成されて互いに接合される。
この天板部材504により、ノズルからインクが吐出される際に飛散するミストが配線基板511に付着することを防ぐので、ミストから配線を保護することが出来る。また、天板部材504がヘッドチップ510の凹凸に嵌合するように設けられることになるので、保持部材505に加えて天板部材504も位置決めされて接合されたヘッドチップ510のずれを効果的に防止して固定することが出来る。
図3に示したように、インクジェットヘッド固定板55にキャリッジヒーター57が設けられている場合には、当該キャリッジヒーター57により加熱されたインクジェットヘッド固定板55からの熱が固定部材501を介して保持部材505及び天板部材504に伝わる。
なお、上述の実施形態では、伝熱板533、天板部材504及び保持部材505からなる熱伝導部材を用いることとして説明している。このように別部材で熱伝導部材を構成することによりインクジェットヘッド50の組み立てが容易になるので好ましい。しかしながら、これらの熱伝導部材の組合せに限定されないことは言うまでもない。
本発明に係るインクジェット記録装置100のヘッドチップ510は、上から順番に、配線基板511と、スペーサー基板512と、振動板514と、圧力室基板515と、中間プレート516と、ノズル基板517とが積層されて形成されている。これらの積層された基板は、両側の基板の材質などに応じた適切な接着部材で接合される。
なお、この孔部512b及び温度検出部54は、スペーサー基板512全体に対して1つ又は数個設けられれば良く、各ノズルに対応して各々設けられる必要はない。
図8は、本実施形態のインクジェット記録装置100において実行されるヒーター制御処理の制御部10(CPU11)による制御手順を示すフローチャートである。
このヒーター制御処理は、インクジェット記録装置100の電源がオンされた際に合わせて起動され、当該電源がオンされている間、継続的に実行される。
また、温度検出部54がスペーサー基板512の内部に設けられているので、従来よりもヘッドチップ510内部のインクの温度に応じてインク温度の調節が可能である。そして、このヘッドチップ510内部のインク温度は、上述のように、共通インク室520の温度に従来よりも近く、且つ、タイムラグが小さく変化する構成となっているので、ヘッドチップ510内部のインク温度と共通インク室520内部のインク温度とを一の温度計測でまとめて容易且つ適切に制御することが出来る。
なお、スペーサー基板512以外に金属部材が用いられ、当該基板に孔部が設けられて温度検出部54が挿入されても良いが、この基板の選択は、各基板に要求される弾性、剛性、温度及びインクなどに対する耐性、コストや重量など種々の要因に応じてなされる必要がある。
図9A及び図9Bは、それぞれ、インクジェットヘッド50の変形例について、図5A、図5Bに示した断面図と同様の位置で切断した断面図を示す。
ここで、中間プレート516は、ノズル基板517と同サイズで図示しているが、ノズル基板517と圧力室基板515の中間サイズとすることも出来る。
なお、この場合、ヘッドチップ510に接続される配線は、保持部材505を迂回して引き出される。
また、保持部材505は、共通インク室520内に面し、且つ、ヘッドチップ510に接して配置され、ヒーター531a、532aからの熱を伝熱板533aから受け取るので、当該保持部材505で温度検出部54による温度の計測を行わせることで、ヘッドチップ510内のインク温度と共通インク室520内のインク温度とをより適切に反映してまとめて温度の制御を行うことが出来る。
そして、ヘッドチップ510をノズル基板517の側から平面視した場合に、ノズル基板517が中間プレート516よりも小さく形成され、ヒーター531、532に接触し、且つ、ヘッドチップ510を挟んでノズル基板517と配線基板511との少なくとも一部に接合される熱伝導部材(伝熱板533、保持部材505、天板部材504)が設けられ、配線基板511と共通インク室形成部材520aとは、少なくとも一部が熱伝導部材(保持部材505)を介して接合され、熱伝導部材(保持部材505)は、ノズル基板517の側面、及び中間プレート516のノズル基板517側の領域(面)のうち、ヘッドチップ510のノズル基板517側からの平面視で中間プレート516がノズル基板517よりも大きく形成されていることではみ出る領域に少なくとも接合されている。
即ち、ヒーター531、532の熱が熱伝導部材により効率的に伝達されるので、ノズル基板517のノズル517a付近のインクやヘッドチップ510内部のインクを効果的に加熱することが出来る。
このような構成により、インクを吐出させるノズルに近い位置で熱が伝えられる部材において計測された温度に基づいて、共通インク室520内のインクとヘッドチップ510内のインクとを簡便な制御でまとめて容易に適切な温度に保持することが出来る。また、特に、ノズルに近い位置の温度をより正確に保つことが出来るので、吐出させるインクの品質を保ちながら好ましく画像形成を行うことが出来る。
例えば、上記実施の形態では、ヘッドチップ510、特に、金属部材によるスペーサー基板512に孔部512bを設けて、当該孔部512bの内部に挿入された温度検出部54により温度を計測することでヘッドチップ510内を流れるインクの温度に即した温度を測定することとしたが、孔部の代わりに表面に設けられた溝部に温度検出部54を埋め込んだり、或いは、単純にスペーサー基板512の側面に接するように温度検出部54を設けたりすることでもヘッドチップ510の温度が取得される。
また、温度検出部54が接触する部分は、スペーサー基板512以外にヘッドチップ510に接する保持部材505を例に挙げて説明したが、ヘッドチップ510内部又はヘッドチップ510に接する位置であって伝熱板533から熱が速やかに伝わる熱伝導部材による部分であれば、他の部分、例えば、天板部材504などであっても良い。これらの構成であっても、従来よりもヘッドチップ510内のインク温度に近く、且つ、共通インク室520の温度変化に対してより迅速に連動した温度の計測データに基づいて、まとめて温度制御を行うことが出来る。
また、上記実施の形態では、加熱制御を制御部10(CPU11)に行わせたが、インクジェットヘッド50の内部にヒーター制御用の制御部を別個に備えても良い。
その他、上記実施の形態で示したヘッドチップ510の構造や、ヒーター531、532、伝熱板533、固定部材501及び天板部材504の配置、位置関係などの具体的な細部は、本発明の趣旨を逸脱しない範囲において適宜変更可能である。
10 制御部
11 CPU
12 RAM
13 記憶部
20 通信部
30 操作表示部
40 搬送部
41 回転モーター
42 ベルト
43 搬送制御部
50 インクジェットヘッド
501 固定部材
502、503 取付部
504 天板部材
505 保持部材
505a 孔部
505b 溝部
51 ヘッド駆動部
510 ヘッドチップ
511 配線基板
511a 絶縁層
511b 絶縁層
511c 貫通孔
511d 配線
512 スペーサー基板
512a 貫通孔
512b 孔部
513 圧電素子
513a スタッドバンプ
513b 半田
514 振動板
514a 貫通孔
515 圧力室基板
515a 貫通孔
515b 貫通孔
516 中間プレート
516a 貫通孔
516b 溝部
517 ノズル基板
517a ノズル
520 共通インク室
520a 共通インク室形成部材
521、522 インレット
523 アウトレット
524 フィルター
53 加熱切替部
531、532 ヒーター
531a、532b ヒーター
533、533a 伝熱板
54 温度検出部
55 インクジェットヘッド固定板
56 インクタンク
57 キャリッジヒーター
100 インクジェット記録装置
110 インクジェットヘッドユニット
P 記録媒体
Claims (10)
- インクを吐出するノズルを複数備えたノズル基板と、
前記ノズル基板のノズルからインクが吐出される吐出面と反対側に設けられ、前記ノズルと、前記ノズルから吐出させるインクを加圧する圧力室とを連通させる中間プレートと、
前記圧力室を備える圧力室基板と、
前記圧力室のインクに対して加圧するための圧電素子が設けられると共に、前記圧力室に連通する流路を備えるスペーサー基板と、
前記スペーサー基板と接する側とは反対側にインク流入口が設けられ、前記インク流入口と前記スペーサー基板の流路とを連通する配線基板と、
が順に接合されるヘッドチップと、
前記ヘッドチップの前記配線基板側に設けられる共通インク室の少なくとも一部を形成する共通インク室形成部材と、
前記共通インク室形成部材に設けられるヒーターと、
を備えるインクジェットヘッドであって、
前記ヘッドチップを前記ノズル基板の側から平面視した場合に、前記ノズル基板が前記中間プレートよりも小さくなるように形成され、
前記ヒーターに接して設けられると共に、前記ヘッドチップを挟んで前記ノズル基板と前記配線基板との少なくとも一部に接合される熱伝導部材が設けられ、
前記配線基板と前記共通インク室形成部材とが前記熱伝導部材を介して接合されることによって共通インク室が形成されると共に、前記熱伝導部材は、前記ノズル基板の側面、及び、前記中間プレートの前記ノズル基板側の領域のうち少なくとも、前記ヘッドチップを前記ノズル基板の側から平面視した場合に前記ノズル基板よりも大きく形成された領域に接合されている
ことを特徴とするインクジェットヘッド。 - インクを吐出するノズルを複数備えたノズル基板と、
前記ノズル基板のノズルからインクが吐出される吐出面と反対側に設けられ、前記ノズルと、前記ノズルから吐出させるインクを加圧する圧力室とを連通させる中間プレートと、
前記圧力室を備える圧力室基板と、
前記圧力室のインクに対して加圧するための圧電素子が設けられると共に、前記圧力室に連通する流路を備えるスペーサー基板と、
前記スペーサー基板と接する側とは反対側にインク流入口が設けられ、前記インク流入口と前記スペーサー基板の流路とを連通する配線基板と、
が順に接合されるヘッドチップと、
前記ヘッドチップの前記配線基板側に設けられる共通インク室の少なくとも一部を形成する共通インク室形成部材と、
前記共通インク室形成部材に設けられるヒーターと、
を備えるインクジェットヘッドであって、
前記ヘッドチップを前記ノズル基板の側から平面視した場合に、前記ノズル基板及び前記中間プレートが前記圧力室基板よりも小さくなるように形成され、
前記ヒーターに接して設けられると共に、前記ヘッドチップを挟んで前記ノズル基板と前記配線基板との少なくとも一部に接合される熱伝導部材が設けられ、
前記配線基板と前記共通インク室形成部材とが前記熱伝導部材を介して接合されることによって共通インク室が形成されると共に、前記熱伝導部材は、前記ノズル基板及び前記中間プレートの側面、並びに前記圧力室基板の前記ノズル基板側の領域のうち、少なくとも、前記ヘッドチップを前記ノズル基板の側から平面視した場合に前記ノズル基板及び前記中間プレートよりも大きく形成された領域に接合されている
ことを特徴とするインクジェットヘッド。 - 前記熱伝導部材は、
前記ヒーターに接触して設けられる伝熱板と、
前記伝熱板に接触し、且つ、前記共通インク室形成部材及び前記配線基板の間に接合されて前記共通インク室形成部材及び前記配線基板と共に前記共通インク室を形成する保持部材と、
前記保持部材と接合され、前記中間プレートの前記ノズル基板側の領域のうち、少なくとも前記ノズル基板よりも大きく形成された領域に接合されている天板部材と、
を備えることを特徴とする請求項1記載のインクジェットヘッド。 - 前記熱伝導部材は、
前記ヒーターに接触して設けられる伝熱板と、
前記伝熱板に接触し、且つ、前記共通インク室形成部材及び前記配線基板の間に接合されて前記共通インク室形成部材及び前記配線基板と共に前記共通インク室を形成する保持部材と、
前記保持部材と接合され、前記圧力室基板の前記ノズル基板側の領域のうち、少なくとも前記ノズル基板及び前記中間プレートよりも大きく形成された領域に接合されている天板部材と、
を備えることを特徴とする請求項2記載のインクジェットヘッド。 - 前記ヘッドチップを構成する基板のうち少なくとも一部の隣接する基板同士は、熱伝導性接着剤で接合されていることを特徴とする請求項3又は4記載のインクジェットヘッド。
- 前記ヒーターは、前記共通インク室の対向する2側面をなす2つの前記共通インク室形成部材にそれぞれ接触して設けられ、
前記伝熱板は、前記ヒーターの前記共通インク室形成部材との接触面とは反対側の面と接触して配置されている
ことを特徴とする請求項3~5の何れか一項に記載のインクジェットヘッド。 - 前記伝熱板は、その端部が折り曲げられて前記保持部材と接合されることを特徴とする請求項3~6の何れか一項に記載のインクジェットヘッド。
- 前記保持部材には、前記共通インク室形成部材の底部と嵌合する溝部が設けられていることを特徴とする請求項3~7の何れか一項に記載のインクジェットヘッド。
- 請求項1~8の何れか一項に記載のインクジェットヘッドと、
前記ヘッドチップ内又は前記ヘッドチップに接する前記熱伝導部材の温度を計測する温度計測部と、
前記温度計測部の計測温度に基づいて前記ヒーターの動作を制御する制御部と、
を備えることを特徴とするインクジェット記録装置。 - 請求項3~8の何れか一項に記載のインクジェットヘッドと、
前記ヘッドチップ内又は前記ヘッドチップに接する前記熱伝導部材の温度を計測する温度計測部と、
前記温度計測部の計測温度に基づいて前記ヒーターの動作を制御する制御部と、
を備え、
前記温度計測部は、前記保持部材、前記天板部材又は前記スペーサー基板の何れかに設けられる
ことを特徴とするインクジェット記録装置。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017098962A1 (ja) * | 2015-12-11 | 2017-06-15 | コニカミノルタ株式会社 | インクジェットヘッド及びインクジェット記録装置 |
WO2017183389A1 (ja) * | 2016-04-18 | 2017-10-26 | コニカミノルタ株式会社 | インクジェットヘッド、ヘッドモジュール及びインクジェット記録装置 |
JP2019123115A (ja) * | 2018-01-15 | 2019-07-25 | 株式会社リコー | 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 |
JP2019217755A (ja) * | 2018-06-19 | 2019-12-26 | セイコーエプソン株式会社 | 液体噴射ヘッドおよび液体噴射装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016057848A1 (en) * | 2014-10-08 | 2016-04-14 | Parker Robert M | Heated shelf apparatus and freeze dry cart using same |
JP7035410B2 (ja) * | 2017-09-26 | 2022-03-15 | ブラザー工業株式会社 | 液体吐出装置 |
US10836161B2 (en) * | 2018-06-19 | 2020-11-17 | Seiko Epson Corporation | Liquid ejecting head and liquid ejecting apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH081928A (ja) * | 1994-06-24 | 1996-01-09 | Hitachi Koki Co Ltd | インクジェットプリントヘッド |
JP2003170586A (ja) * | 2001-12-04 | 2003-06-17 | Sii Printek Inc | インクジェットヘッド及びインクジェット式記録装置 |
JP2007090694A (ja) * | 2005-09-29 | 2007-04-12 | Konica Minolta Holdings Inc | ラインヘッド及びインクジェット印画装置 |
JP2009051153A (ja) * | 2007-08-29 | 2009-03-12 | Seiko Epson Corp | 液体噴射ヘッド |
JP2010023257A (ja) * | 2008-07-16 | 2010-02-04 | Seiko Epson Corp | 液体噴射ヘッド |
JP2010194767A (ja) | 2009-02-23 | 2010-09-09 | Seiko Epson Corp | 液体噴射ヘッド及び液体噴射装置 |
JP2012071440A (ja) * | 2010-09-28 | 2012-04-12 | Seiko Epson Corp | 液体噴射ヘッド |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01110963A (ja) * | 1987-10-26 | 1989-04-27 | Seiko Epson Corp | インクジェット記録装置 |
JPH0288245A (ja) * | 1988-09-27 | 1990-03-28 | Seiko Epson Corp | インクジェット記録ヘッド |
JPH0288244A (ja) * | 1988-09-27 | 1990-03-28 | Seiko Epson Corp | インクジェット記録ヘッド |
US5659346A (en) * | 1994-03-21 | 1997-08-19 | Spectra, Inc. | Simplified ink jet head |
JP2001162811A (ja) * | 1999-12-07 | 2001-06-19 | Seiko Epson Corp | インクジェット式記録ヘッドユニット及びその製造方法 |
JP2004230775A (ja) * | 2003-01-31 | 2004-08-19 | Konica Minolta Holdings Inc | インクジェット記録方法 |
JP2007223144A (ja) * | 2006-02-23 | 2007-09-06 | Konica Minolta Holdings Inc | インクジェット印画装置および印画方法 |
JP4453720B2 (ja) * | 2007-06-01 | 2010-04-21 | セイコーエプソン株式会社 | 液体噴射ヘッドユニット及び液体噴射装置 |
JP2011218640A (ja) * | 2010-04-08 | 2011-11-04 | Konica Minolta Holdings Inc | インクジェットヘッド |
JP2011218641A (ja) * | 2010-04-08 | 2011-11-04 | Konica Minolta Holdings Inc | インクジェットヘッド |
JP2013144360A (ja) * | 2010-04-20 | 2013-07-25 | Konica Minolta Inc | インクジェット式記録ヘッド |
WO2012002132A1 (ja) * | 2010-07-02 | 2012-01-05 | コニカミノルタホールディングス株式会社 | インクジェットヘッド |
JP2013176849A (ja) * | 2010-07-02 | 2013-09-09 | Konica Minolta Inc | インクジェットヘッド |
JP5614201B2 (ja) * | 2010-09-22 | 2014-10-29 | セイコーエプソン株式会社 | 液体噴射ヘッドユニット |
JP2012148487A (ja) * | 2011-01-19 | 2012-08-09 | Ricoh Co Ltd | 記録ヘッド、画像形成装置 |
JP6111849B2 (ja) * | 2013-05-17 | 2017-04-12 | コニカミノルタ株式会社 | 圧電デバイスの製造方法 |
-
2015
- 2015-01-26 WO PCT/JP2015/051981 patent/WO2015115353A1/ja active Application Filing
- 2015-01-26 EP EP15743148.7A patent/EP3100860B1/en active Active
- 2015-01-26 JP JP2015559924A patent/JP6269686B2/ja not_active Expired - Fee Related
- 2015-01-26 US US15/115,003 patent/US9649841B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH081928A (ja) * | 1994-06-24 | 1996-01-09 | Hitachi Koki Co Ltd | インクジェットプリントヘッド |
JP2003170586A (ja) * | 2001-12-04 | 2003-06-17 | Sii Printek Inc | インクジェットヘッド及びインクジェット式記録装置 |
JP2007090694A (ja) * | 2005-09-29 | 2007-04-12 | Konica Minolta Holdings Inc | ラインヘッド及びインクジェット印画装置 |
JP2009051153A (ja) * | 2007-08-29 | 2009-03-12 | Seiko Epson Corp | 液体噴射ヘッド |
JP2010023257A (ja) * | 2008-07-16 | 2010-02-04 | Seiko Epson Corp | 液体噴射ヘッド |
JP2010194767A (ja) | 2009-02-23 | 2010-09-09 | Seiko Epson Corp | 液体噴射ヘッド及び液体噴射装置 |
JP2012071440A (ja) * | 2010-09-28 | 2012-04-12 | Seiko Epson Corp | 液体噴射ヘッド |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017098962A1 (ja) * | 2015-12-11 | 2017-06-15 | コニカミノルタ株式会社 | インクジェットヘッド及びインクジェット記録装置 |
CN108367569A (zh) * | 2015-12-11 | 2018-08-03 | 柯尼卡美能达株式会社 | 喷墨头以及喷墨记录装置 |
JPWO2017098962A1 (ja) * | 2015-12-11 | 2018-09-27 | コニカミノルタ株式会社 | インクジェットヘッド及びインクジェット記録装置 |
CN108367569B (zh) * | 2015-12-11 | 2020-06-16 | 柯尼卡美能达株式会社 | 喷墨头以及喷墨记录装置 |
WO2017183389A1 (ja) * | 2016-04-18 | 2017-10-26 | コニカミノルタ株式会社 | インクジェットヘッド、ヘッドモジュール及びインクジェット記録装置 |
JPWO2017183389A1 (ja) * | 2016-04-18 | 2019-02-28 | コニカミノルタ株式会社 | インクジェットヘッド、ヘッドモジュール及びインクジェット記録装置 |
JP2019123115A (ja) * | 2018-01-15 | 2019-07-25 | 株式会社リコー | 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 |
JP7059640B2 (ja) | 2018-01-15 | 2022-04-26 | 株式会社リコー | 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 |
JP2019217755A (ja) * | 2018-06-19 | 2019-12-26 | セイコーエプソン株式会社 | 液体噴射ヘッドおよび液体噴射装置 |
JP7196641B2 (ja) | 2018-06-19 | 2022-12-27 | セイコーエプソン株式会社 | 液体噴射ヘッドおよび液体噴射装置 |
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