WO2016143205A1 - インクジェット記録装置 - Google Patents
インクジェット記録装置 Download PDFInfo
- Publication number
- WO2016143205A1 WO2016143205A1 PCT/JP2015/083945 JP2015083945W WO2016143205A1 WO 2016143205 A1 WO2016143205 A1 WO 2016143205A1 JP 2015083945 W JP2015083945 W JP 2015083945W WO 2016143205 A1 WO2016143205 A1 WO 2016143205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support frame
- ink
- paper
- inkjet head
- deflection
- Prior art date
Links
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
- B41J2/155—Arrangement thereof for line printing
-
- 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
- B41J19/00—Character- or line-spacing mechanisms
-
- 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/04—Sound-deadening or shock-absorbing devices or measures therein
- B41J19/06—Resilient mounting of mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
-
- 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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J2025/008—Actions or mechanisms not otherwise provided for comprising a plurality of print heads placed around a drum
-
- 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
- B41J2202/14—Mounting head into the printer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/20—Modules
-
- 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
- B41J2202/21—Line printing
Definitions
- the present invention relates to an ink jet recording apparatus, and more particularly to a line type ink jet recording apparatus equipped with a long ink jet head whose length in the nozzle arrangement direction is longer than the length in the direction orthogonal to the nozzle arrangement direction.
- an inkjet head having a length corresponding to the width of the medium to be recorded is mounted. Therefore, in a line-type ink jet recording apparatus, an ink jet head having a longer length is mounted as the width of a recording target medium increases.
- a long inkjet head having a long length in the longitudinal direction is supported at both ends in the longitudinal direction and installed at a predetermined position in the machine.
- Patent Document 1 proposes a method of correcting the deflection by providing a warp correction means on the gantry on which the ink jet head is installed and applying a force in a direction to cancel the warp to the ink jet head by the warp correction means.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide an ink jet recording apparatus capable of correcting the deflection generated in the ink jet head with a compact configuration.
- a plurality of recording units including a long inkjet head, an ink supply unit that supplies ink to the inkjet head, a first support frame that supports the inkjet head, and at least a part of the ink supply unit
- a plurality of support frames including a plurality of support frames, a plurality of first support frame support portions that support both ends of the first support frame in the longitudinal direction, and a plurality of first support frames that support the second support frame.
- An ink jet recording apparatus comprising: a deflection correcting unit that corrects the deflection generated in the first support frame when supported by the unit.
- the support frame is provided for each recording unit.
- the support frame includes a first support frame that supports the ink jet head, and a second support frame that supports at least a part of the ink supply unit.
- the first support frame is mounted on the gantry with both longitudinal ends supported by a first support frame support part provided on the gantry.
- the second support frame is supported by a second support frame support portion provided on the gantry and is mounted on the gantry.
- Each second support frame is provided with a deflection correcting means.
- the deflection correcting means applies a pressing force or a tensile force to at least a part of the first support frame to correct the deflection generated in the first support frame.
- the installation portion of the inkjet head can be made compact with respect to the gantry.
- the support unit of the inkjet head can be reduced in weight, and bending due to its own weight can be suppressed.
- the inkjet head is configured by connecting a plurality of head modules.
- a long inkjet head that is long in the longitudinal direction can be easily manufactured.
- the first support frame support portion is arranged in an arc shape along the conveyance path of the medium conveyed along the arc-shaped conveyance path.
- a conveyance path is configured, for example, when a medium is wound around a circumferential surface of a rotating drum and conveyed.
- the inkjet heads are installed with inclination at different angles.
- the support frame is the inkjet recording apparatus according to any one of (1) to (3), wherein the first support frame and the second support frame are connected via a connecting member.
- the first support frame and the second support frame are coupled to each other via the coupling member.
- the 1st support frame and the 2nd support frame can be attached or detached integrally at the time of attachment or detachment to a mount.
- the deflection correcting means includes a spring and applies a pressing force or a tensile force by the spring to the first support frame.
- the deflection correcting means includes the spring, and a pressing force or a tensile force is applied to the first support frame by the spring.
- the deflection correcting means further includes a lever, and applies a pressing force or a tensile force by a spring to the first support frame via the lever.
- the pressing force or tensile force by the spring is applied to the first support frame via the insulator.
- a large pressing force or a tensile force can be applied to the first support frame by the force of a small spring.
- the deflection correcting means includes a first spring that pulls one end in the short direction of the first support frame, and a second spring that pulls the other end in the short direction of the first support frame.
- the deflection correcting means includes the first spring and the second spring.
- the first spring pulls one end in the short direction of the first support frame
- the second spring pulls the other end in the short direction of the first support frame.
- the deflection correcting means provided in the second support frame of each support frame applies a tensile force to the first support frame of the support frame disposed adjacently.
- the tensile force can be appropriately applied to the first support frame by effectively utilizing the space between the support frames.
- the first support frame and the second support frame are arranged in series along the ink discharge direction of the inkjet head supported by the first support frame. Any one of the inkjet recording apparatuses.
- the first support frame and the second support frame are arranged in series along the ink discharge direction of the inkjet head supported by the first support frame.
- the second support frame is disposed immediately above the first support frame.
- the gantry is mounted on the carriage. Thereby, the some inkjet head mounted in the mount can be moved integrally.
- FIG. 1 is a plan view of the ink jet recording apparatus shown in FIG.
- Perspective view showing the configuration of an inkjet head Plan view of nozzle surface of inkjet head
- Front view showing schematic configuration of deflection correction mechanism
- deflection correction mechanism when correcting a deflection by pressing a plurality of locations on the first support frame
- Front view showing a second embodiment of the deflection correction mechanism
- Front view showing a third embodiment of the deflection correcting mechanism
- the front view which shows schematic structure in the case of applying the tension
- Schematic configuration diagram in the case of applying a pressing force to the first support frame from the deflection correction mechanism provided in the adjacent support frame
- Front view showing a fifth embodiment of the deflection correcting mechanism.
- FIG. 1 is a front view showing a schematic configuration of the ink jet recording apparatus.
- FIG. 2 is a plan view of the ink jet recording apparatus shown in FIG.
- the ink jet recording apparatus 1 of the present embodiment is a line type ink jet recording apparatus that records a color image on a sheet by a single pass method using a line type ink jet head.
- the ink jet recording apparatus 1 according to the present embodiment is an ink jet recording apparatus that records an image on a general-purpose printing paper using water-based ink.
- the water-based ink refers to an ink in which a coloring material such as a dye or a pigment is dissolved or dispersed in water and a water-soluble solvent.
- the general-purpose printing paper is not so-called ink-jet paper, but means paper mainly composed of cellulose such as coated paper generally used in offset printing.
- the inkjet recording apparatus 1 mainly applies a processing liquid to a paper feeding unit 10 that feeds paper P and a paper P fed from the paper feeding unit 10.
- a treatment liquid coating unit 20 to be coated a treatment liquid drying unit 30 for drying the paper P coated with the treatment liquid, an image recording unit 40 for recording a color image on the paper P subjected to the drying treatment by an inkjet method, and an image
- the paper feeding unit 10 automatically feeds the paper P one by one. As shown in FIGS. 1 and 2, the paper feeding unit 10 mainly includes a paper feeding device 12, a feeder board 14, and a paper feeding drum 16.
- the paper feeding device 12 takes out the paper P set on the paper feeding tray 12A in a bundled state one by one from the top and feeds the paper P to the feeder board 14.
- the feeder board 14 receives the paper P fed from the paper feeding device 12 and transfers the received paper P to the paper feeding drum 16.
- the paper supply drum 16 receives the paper P fed from the feeder board 14 and transfers the received paper P to the processing liquid application unit 20.
- the processing liquid application unit 20 applies the processing liquid to the paper P.
- This treatment liquid is a liquid having a function of aggregating, insolubilizing or thickening the color material component in the ink. By applying such a treatment liquid to the paper P, high-quality images can be recorded even when general-purpose printing paper is used.
- the treatment liquid application unit 20 mainly includes a treatment liquid application drum 22 that conveys the paper P, and a treatment liquid that applies the treatment liquid to the paper P that is conveyed by the treatment liquid application drum 22. And a coating device 24.
- the processing liquid application drum 22 receives the paper P from the paper supply drum 16 of the paper supply unit 10 and transfers the received paper P to the processing liquid drying unit 30.
- the treatment liquid coating drum 22 includes a gripper 23 on the peripheral surface, and grips and rotates the front end of the paper P with the gripper 23, so that the paper P is wound around the peripheral surface and conveyed.
- the leading edge of the paper P refers to the front end in the transport direction of the paper P.
- the processing liquid coating device 24 applies the processing liquid to the paper P conveyed by the processing liquid coating drum 22.
- the treatment liquid application device 24 includes an application roller, and applies the treatment liquid to the recording surface of the paper P by bringing the application roller into contact with the recording surface of the paper P.
- the recording surface of the paper P refers to the surface on which the image of the paper P is recorded.
- the treatment liquid application unit 20 is configured as described above.
- the processing liquid is applied to the recording surface of the paper P in the process of being conveyed by the processing liquid application drum 22.
- the processing liquid drying unit 30 performs a drying process on the paper P coated with the processing liquid.
- the treatment liquid drying unit 30 mainly includes a treatment liquid drying drum 32 that conveys the paper P, and a plurality of hot air blowers 34 that blow warm air on the recording surface of the paper P that is conveyed by the treatment liquid drying drum 32. It is prepared for.
- the processing liquid drying drum 32 receives the paper P from the processing liquid coating drum 22 of the processing liquid coating unit 20 and transfers the received paper P to the image recording unit 40.
- the treatment liquid drying drum 32 is configured by a frame assembled in a cylindrical shape, and includes a gripper 33 on the peripheral surface.
- the treatment liquid drying drum 32 conveys the paper P by gripping and rotating the front end of the paper P with the gripper 33.
- the hot air blower 34 is installed inside the processing liquid drying drum 32.
- the warm air blower 34 blows warm air toward the paper P conveyed by the treatment liquid drying drum 32. Hot air blown from the hot air blower 34 is blown against the recording surface of the paper P. Thereby, the treatment liquid is dried.
- the treatment liquid drying unit 30 is configured as described above. In the process of being conveyed by the treatment liquid drying drum 32, the paper P is dried by blowing hot air onto the recording surface.
- the image recording unit 40 records a color image on the paper P using four colors of ink of cyan (C), magenta (M), yellow (Y), and black (K). As shown in FIG. 1, the image recording unit 40 mainly includes an image recording drum 42 that conveys the paper P, a head unit 100, and a scanner 48 that reads an image recorded on the paper P. .
- the image recording drum 42 receives the paper P from the processing liquid drying drum 32 of the processing liquid drying unit 30 and transfers the received paper P to the ink drying unit 50.
- the image recording drum 42 is provided with a gripper 43 on its peripheral surface, and the gripper 43 grips and rotates the front end of the paper P, so that the paper P is wound around the peripheral surface and conveyed.
- the image recording drum 42 includes a suction mechanism (not shown), and transports the paper P while being sucked onto the peripheral surface. A negative pressure is used for the adsorption.
- a large number of suction holes are provided on the peripheral surface of the image recording drum 42. The suction mechanism sucks the paper P onto the peripheral surface by sucking from the inside through the suction holes.
- the head unit 100 includes an inkjet head 110C that ejects cyan ink droplets, an inkjet head 110M that ejects magenta ink droplets, an inkjet head 110Y that ejects yellow ink droplets, and an inkjet head that ejects black ink droplets. 110K.
- Each of the inkjet heads 110C, 110M, 110Y, and 110K is a line-type inkjet head that can record a desired image on a sheet P conveyed by the image recording drum 42 by a single pass.
- each inkjet head 110C, 110M, 110Y, and 110K is configured by connecting a plurality of head modules. This will be described in detail later.
- the inkjet heads 110C, 110M, 110Y, and 110K are arranged at regular intervals along the conveyance path of the paper P by the image recording drum 42.
- FIG. 3 is a diagram showing an arrangement relationship of the inkjet head with respect to the image recording drum.
- the symbol O indicates the rotation center of the image recording drum 42
- the symbol PP indicates the conveyance path of the paper P by the image recording drum 42
- Reference VL indicates a vertical line passing through the rotation center O of the image recording drum 42
- reference HL indicates a horizontal line passing through the rotation center O of the image recording drum 42
- An arrow indicated by symbol PD indicates the conveyance direction of the paper P by the image recording drum 42
- an arrow indicated by symbol RD indicates the rotation direction of the image recording drum 42.
- each inkjet head 110C, 110M, 110Y, and 110K is constant along the arc-shaped transport path PP.
- the four inkjet heads 110C, 110M, 110Y, and 110K are circular so that they are symmetrical with respect to the vertical line VL passing through the rotation center O of the image recording drum 42. Arranged in an arc.
- Each inkjet head 110C, 110M, 110Y, and 110K is provided with nozzle surfaces 112C, 112M, 112Y, and 112K at the tip, and the nozzles provided on the nozzle surfaces 112C, 112M, 112Y, and 112K are used by the image recording drum 42. Ink droplets are ejected vertically toward the transported paper P.
- straight lines that pass through the centers of the nozzle surfaces 112C, 112M, 112Y, and 112K of the inkjet heads 110C, 110M, 110Y, and 110K and are perpendicular to the nozzle surfaces 112C, 112M, 112Y, and 112K are Lc, Lm, and Ly.
- each of the inkjet heads 110C, 110M, 110Y, and 110K has a straight line Lc, Lm, Ly, and Lk perpendicular to the nozzle surfaces 112C, 112M, 112Y, and 112K, and the rotation of the image recording drum 42. They are arranged so as to pass through the center O and have a constant angular interval.
- each of the inkjet heads 110C, 110M, 110Y, and 110K is arranged such that the nozzle surfaces 112C, 112M, 112Y, and 112K are positioned at a certain height from the peripheral surface of the image recording drum 42. .
- the inkjet heads 110C, 110M, 110Y, and 110K arranged in this way are arranged at different angles on the nozzle surfaces 112C, 112M, 112Y, and 112K with respect to the horizontal plane.
- Each inkjet head 110C, 110M, 110Y, and 110K is mounted on a gantry (not shown) to constitute one head unit 100.
- the gantry is mounted on a carriage that moves between the image recording unit 40 and the maintenance unit 70.
- the scanner 48 reads an image recorded on the paper P by the inkjet heads 110C, 110M, 110Y, and 110K.
- the image recording unit 40 is configured as described above. As the paper P is conveyed by the image recording drum 42, ink droplets of cyan, magenta, yellow, and black are ejected onto the recording surface from the inkjet heads 110C, 110M, 110Y, and 110K constituting the head unit 100. Thus, a color image is recorded on the recording surface. The image recorded on the paper P is read by the scanner 48 as necessary.
- the ink drying unit 50 performs a drying process on the paper P recorded by the image recording unit 40.
- the ink drying unit 50 is an example of a paper drying device when incorporated in an ink jet recording apparatus.
- the ink drying unit 50 mainly applies a chain delivery 52 that transports the paper P, a paper guide 54 that guides the transport of the paper P, and a paper P transported by the chain delivery 52. And a warm air blowing unit 56 for blowing warm air.
- the chain delivery 52 receives the paper P from the image recording drum 42 of the image recording unit 40 and transfers the received paper P to the stacking unit 60.
- the chain delivery 52 includes a pair of endless chains 52A that travel along a prescribed travel route, and grips the leading edge of the paper P with a gripper 52B provided on the pair of chains 52A, thereby allowing the paper P to pass through the prescribed transport route. Convey along. A plurality of grippers 52B are provided on the chain 52A at regular intervals.
- the paper guide 54 guides the paper P conveyed by the chain delivery 52.
- the paper guide 54 has a smooth guide surface.
- the paper P conveyed by the chain delivery 52 is conveyed while sliding on this guide surface.
- the hot air blowing unit 56 blows hot air on the recording surface of the paper P conveyed by the chain delivery 52 to dry the ink.
- the hot air blowing unit 56 includes a plurality of nozzles along the conveyance path of the paper P, and blows warm air from the nozzles toward the paper P conveyed by the chain delivery 52.
- the ink drying unit 50 is configured as described above.
- the paper P is dried by the hot air blown from the hot air blowing unit 56 in the process of being conveyed by the chain delivery 52 being blown against the recording surface.
- the stacking unit 60 stacks the sequentially discharged sheets P at one place. As shown in FIGS. 1 and 2, the stacking unit 60 includes a stacking device 62 that receives and stacks the paper P conveyed from the ink drying unit 50 by the chain delivery 52.
- the chain delivery 52 releases the paper P at a predetermined accumulation position.
- the stacking device 62 includes a stacking tray 62A, receives the paper P released from the chain delivery 52, and stacks it in a bundle on the stacking tray 62A.
- the maintenance unit 70 performs maintenance on the inkjet heads 110C, 110M, 110Y, and 110K provided in the image recording unit 40.
- the maintenance unit 70 mainly includes a cap device 72 that covers the nozzle surfaces of the inkjet heads 110C, 110M, 110Y, and 110K with a cap, and the nozzle surfaces of the inkjet heads 110C, 110M, 110Y, and 110K.
- a cleaning device 74 for wiping and cleaning.
- the cap device 72 includes caps 72C, 72M, 72Y, and 72K for each of the inkjet heads 110C, 110M, 110Y, and 110K.
- Each cap 72C, 72M, 72Y, 72K individually covers the nozzle surface of the corresponding inkjet head 110C, 110M, 110Y, and 110K.
- Capping is performed by moving the inkjet heads 110C, 110M, 110Y, and 110K to a predetermined cap position.
- the inkjet heads 110C, 110M, 110Y, and 110K are provided to be movable by the carriage.
- reference numeral D1 indicates the moving direction of the inkjet heads 110C, 110M, 110Y, and 110K by the carriage.
- the inkjet heads 110C, 110M, 110Y, and 110K move horizontally in parallel with the rotation axis of the image recording drum 42 by the carriage.
- the inkjet heads 110C, 110M, 110Y, and 110K are provided so as to be movable between the cap position and the recording position by the movement of the carriage.
- the inkjet heads 110 ⁇ / b> C, 110 ⁇ / b> M, 110 ⁇ / b> Y, and 110 ⁇ / b> K are arranged on the conveyance path of the paper P by the image recording drum 42 by being positioned at the recording position. Further, by being located at the cap position, the caps 72C, 72M, 72Y, and 72K are disposed at the installation positions.
- the cleaning device 74 includes cleaners 74C, 74M, 74Y, and 74K that individually clean the nozzle surfaces of the inkjet heads 110C, 110M, 110Y, and 110K.
- Each of the cleaners 74C, 74M, 74Y, and 74K includes a wiping member that wipes the nozzle surface.
- the wiping member is constituted by, for example, a blade or a web, and is provided to be able to advance and retreat with respect to the nozzle surface.
- the cleaning device 74 is disposed on the movement path of the inkjet heads 110C, 110M, 110Y, and 110K by the carriage. In each of the inkjet heads 110C, 110M, 110Y, and 110K, the wiping member is pressed against the nozzle surface in the process of moving from the cap position to the recording position, and the nozzle surface is wiped.
- the maintenance unit 70 is configured as described above. As described above, capping by the cap device 72 is performed by moving the inkjet heads 110C, 110M, 110Y, and 110K to the cap position. Capping is performed when the use of the inkjet heads 110C, 110M, 110Y, and 110K is stopped for a certain period of time, such as when the power is turned off or during standby. In addition, the cap device 72 performs purging, preliminary discharge, and the like, which are one type of maintenance.
- the cleaning of the nozzle surface by the cleaning device 74 is performed by moving the inkjet heads 110C, 110M, 110Y, and 110K from the cap position to the recording position.
- the cleaners 74C, 74M, 74Y, and 74K provided in the cleaning device 74 press the wiping member against the nozzle surfaces of the ink jet heads 110C, 110M, 110Y, and 110K that move from the cap position toward the recording position. Then, the nozzle surface is wiped with a wiping member.
- Maintenance is automatically performed at a preset timing. Moreover, it is enforced according to the instruction
- the execution timing is defined for each type of maintenance. The execution timing is defined by, for example, the elapsed time from the previous maintenance, the number of recorded sheets, and the like.
- FIG. 4 is a block diagram showing a schematic configuration of a control system of the ink jet recording apparatus.
- the ink jet recording apparatus 1 includes a computer 200 as a control unit. All operations of the inkjet recording apparatus 1 are controlled by the computer 200. That is, paper feeding from the paper feeding unit 10, conveyance of the fed paper P, coating of the processing liquid in the processing liquid coating unit 20, drying of the paper P in the processing liquid drying unit 30, in the image recording unit 40 All processes such as image recording, reading of recorded images, drying of paper P in the ink drying unit 50, paper discharge of the paper P, and stacking of the paper P in the stacking unit 60 are controlled by the computer 200. To be implemented. Maintenance is also performed under the control of the computer 200.
- the computer 200 functions as a control unit that controls each unit of the inkjet recording apparatus 1 by executing a predetermined control program.
- the computer 200 includes a communication unit 202 for communicating with an external device, an operation unit 204 for operating the inkjet recording apparatus 1, a display unit 206 for displaying various information, and a storage unit 208 for storing various data. Etc. are connected.
- the operation unit 204 includes, for example, operation buttons, a keyboard, a mouse, a touch panel, and the like.
- the display unit 206 is configured by a display device such as a liquid crystal display, for example.
- the storage unit 208 is configured by a storage device such as a hard disk drive, for example.
- a control program executed by the computer 200 and various data necessary for control are stored in the storage unit 208.
- the image data to be recorded is taken in from an external device such as a host computer via the communication unit 202.
- the computer 200 functions as an image processing unit by executing a predetermined image processing program.
- the image processing unit performs processing for converting image data to be recorded into a data format that can be handled by the inkjet recording apparatus 1. Specifically, for example, a process of converting image data expressed in RGB format into dot arrangement data of each color of cyan (C), magenta (M), yellow (Y), and black (K) is performed.
- the computer 200 drives the ink jet heads 110C, 110M, 110Y, and 110K based on the generated dot arrangement data, and records an image on the paper P.
- Image recording includes (a) paper feed, (b) application of processing liquid, (c) drying of processing liquid, (d) recording, (e) drying of ink, (f) paper discharge, (g) stacking, It is carried out in the flow.
- the sheets P are fed from the sheet feeding unit 10 one by one at regular intervals.
- the processing liquid is first applied to the recording surface of the paper P supplied from the paper supply unit 10 by the processing liquid application unit 20.
- the processing liquid application unit 20 applies the processing liquid to the recording surface of the conveyed paper P with a roller.
- the paper P coated with the treatment liquid is then dried by the treatment liquid drying unit 30.
- the treatment liquid drying unit 30 blows warm air on the recording surface of the conveyed paper P to dry the paper P.
- the dried paper P is then recorded by the image recording unit 40.
- the image recording unit 40 ejects ink droplets from the inkjet heads 110C, 110M, 110Y, and 110K toward the conveyed paper P, and records a color image on the recording surface.
- the paper P on which the image is recorded is then dried by the ink drying unit 50.
- the ink drying unit 50 blows hot air on the recording surface of the conveyed paper P to dry the paper P.
- the dried paper P is conveyed to the stacking unit 60. Then, the paper is discharged by the stacking unit 60 and stacked in a bundle.
- FIG. 5 is a perspective view showing the configuration of the inkjet head.
- the inkjet head 110 is configured by connecting a plurality of head modules 120 in a row.
- the head module 120 is a so-called short inkjet head. By connecting such head modules 120 to form one ink jet head, it is possible to easily lengthen the ink jet head.
- Each head module 120 includes a discharge portion 120A at the tip portion.
- the discharge unit 120A has a parallelogram flat block shape.
- the front end surface of the ejection unit 120A is a nozzle surface 120a, and a plurality of nozzles for ejecting ink are arranged on the nozzle surface 120a. The arrangement of the nozzle will be described later.
- the plurality of head modules 120 are attached to and integrated with the first support frame 122 having a bar shape.
- the first support frame 122 includes head module mounting portions (not shown) at regular intervals along the longitudinal direction.
- Each head module 120 is detachably attached to the head module attachment portion.
- Each head module 120 is attached to the head module attachment portion, and thereby the discharge portion 120A is connected in a row.
- the nozzle surfaces 120a of the head modules 120 are connected in a row, and one long nozzle surface 112 is formed as a whole.
- FIG. 6 is a plan view of the nozzle surface of the inkjet head.
- the nozzle surface 120a of each head module 120 includes a belt-like nozzle arrangement region 120b at the center.
- the nozzle N is arranged in the nozzle arrangement region 120b.
- FIG. 7 is an enlarged plan view of a part of the nozzle arrangement region.
- the nozzles N are arranged in a matrix in the nozzle arrangement region 120b. More specifically, assuming that a straight line parallel to the longitudinal direction of the inkjet head 110 is x and a straight line inclined at an angle ⁇ with respect to the straight line x is y, the nozzles N are arranged at a constant pitch along the straight line x and the straight line y. Is done. By arranging the nozzles N in this way, the nozzles N can be arranged with high density. In this case, the substantial arrangement direction of the nozzles N is the direction of the straight line x. That is, the nozzle N is arranged substantially along the longitudinal direction of the inkjet head 110.
- the ink ejected from the nozzle N is circulated and supplied to the inkjet head 110.
- the ink supply is performed by an ink supply unit.
- the ink supply unit is provided for each inkjet head.
- the ink supply unit circulates and supplies ink to each head module constituting the inkjet head. Accordingly, each head module is provided with an ink supply port for supplying ink and an ink recovery port for recovering ink.
- FIG. 8 is a diagram illustrating a schematic configuration of the ink supply unit.
- the ink supply unit 130 includes an ink tank 132 that stores ink, a supply pump 134 that supplies ink from the ink tank 132 toward the ink jet head 110, and the ink jet head 110 to the ink tank 132.
- a collecting pump 136 for feeding ink toward the head a supply manifold 138 for branching the ink sent from the ink tank 132 to each head module 120, and a set of inks collected individually from each head module 120.
- the ink tank 132 stores ink ejected from the inkjet head 110.
- the supply pump 134 is configured by, for example, a tube pump, and sends the ink stored in the ink tank 132 toward the inkjet head 110 via the common supply pipe 142.
- the recovery pump 136 is constituted by, for example, a tube pump, and sends ink from the inkjet head 110 toward the ink tank 132 via the common recovery pipe 144.
- the supply manifold 138 connects the common supply pipe 142 and the individual supply pipe 146 to each other.
- the supply manifold 138 branches the ink sent from the common supply pipe 142 and sends it to each individual supply pipe 146.
- the recovery manifold 140 connects the common recovery pipe 144 and the individual recovery pipe 148 to each other.
- the collection manifold 140 collects the inks sent from the individual collection pipes 148 into one and sends them to the common collection pipe 144.
- the common supply pipe 142 connects the ink tank 132 and the supply manifold 138 to each other.
- the common recovery pipe 144 connects the ink tank 132 and the recovery manifold 140 to each other.
- the individual supply pipe 146 connects the supply manifold 138 and each head module 120 individually.
- Each individual supply pipe 146 includes a supply-side connection port 146A at the tip.
- a flexible individual supply connection pipe 162 is connected to each supply side connection port 146A.
- Each individual supply pipe 146 is connected to an ink supply port 164 provided in each head module 120 via this individual supply connection pipe 162.
- the individual recovery pipe 148 connects the recovery manifold 140 and each head module 120 individually.
- Each individual recovery pipe 148 includes a recovery-side connection port 148A at the tip.
- Each recovery side connection port 148A is connected to an individual recovery connection pipe 166 having flexibility.
- Each individual recovery pipe 148 is connected to an ink recovery port 168 provided in each head module 120 via this individual recovery connection pipe 166.
- the common supply damper 150 is installed in the middle of the common supply pipe 142.
- the common supply damper 150 absorbs pressure fluctuations of the ink flowing through the common supply pipe 142.
- the common supply damper 150 is installed mainly for the purpose of absorbing ink pulsation accompanying the drive of the supply pump 134. Therefore, a large damper capable of absorbing a large pressure fluctuation is used.
- the common recovery damper 152 is installed in the middle of the common recovery pipe 144.
- the common recovery damper 152 absorbs the pressure fluctuation of the ink flowing through the common recovery pipe 144.
- the common recovery damper 152 is installed mainly for the purpose of absorbing ink pulsation accompanying the drive of the recovery pump 136. Therefore, a large damper capable of absorbing a large pressure fluctuation is used.
- the individual supply damper 154 is installed in the middle of each individual supply pipe 146.
- the individual supply damper 154 absorbs pressure fluctuation of the ink flowing through the individual supply pipe 146.
- the individual supply damper 154 is installed mainly for the purpose of absorbing ink pressure fluctuations accompanying ink ejection. Therefore, a smaller damper than the common supply damper 150 is used.
- the individual recovery damper 156 is installed in the middle of each individual recovery pipe 148.
- the individual recovery damper 156 absorbs the pressure fluctuation of the ink flowing through the individual recovery pipe 148.
- the individual recovery damper 156 is installed mainly for the purpose of absorbing ink pressure fluctuations accompanying ink ejection. Therefore, a smaller damper than the common recovery damper 152 is used.
- the individual supply valve 158 is installed in the middle of each individual supply pipe 146.
- the individual supply valve 158 is constituted by, for example, an electromagnetic valve, and opens and closes the ink flow path that flows through each individual supply pipe 146.
- the individual recovery valve 160 is installed in the middle of each individual recovery pipe 148.
- the individual collection valve 160 is constituted by, for example, an electromagnetic valve, and opens and closes the ink flow path that flows through each individual collection pipe 148.
- the ink supply unit 130 configured as described above circulates and supplies ink to the inkjet head 110 by driving the supply pump 134 and the recovery pump 136.
- One recording unit is configured by one inkjet head 110 and the ink supply unit 130 that supplies ink to the one inkjet head 110. Since the ink jet recording apparatus 1 of the present embodiment uses four colors of ink of cyan, magenta, yellow, and black, four recording units are provided.
- a part of the ink supply unit 130 is attached to the second support frame 170 and is disposed in the vicinity of the inkjet head 110. That is, the supply manifold 138, the recovery manifold 140, the individual supply pipe 146, the individual recovery pipe 148, the individual supply damper 154, the individual recovery damper 156, the individual supply valve 158, and the individual recovery valve 160 are provided in the second support frame 170. It is attached and arranged in the vicinity of the inkjet head 110. This point will be described later.
- each of the inkjet heads 110C, 110M, 110Y, and 110K is mounted on a gantry provided in the carriage.
- FIG. 9 is a front view of a gantry on which the inkjet head is mounted.
- FIG. 10 is a cross-sectional view taken along the line 10-10 in FIG.
- the gantry 300 on which the inkjet heads 110C, 110M, 110Y, and 110K are mounted is provided in the carriage 310.
- the carriage 310 has a rectangular frame shape.
- the carriage 310 is provided so as to be movable along a pair of guide rails 312.
- the pair of guide rails 312 are disposed in parallel with the rotation axis of the image recording drum 42.
- the carriage 310 is slidably supported by the pair of guide rails 312 via a pair of sliders 314.
- the carriage 310 is moved along the guide rail 312 by a feed screw mechanism 318 driven by a motor 316.
- the feed screw mechanism 318 includes a feed screw 318A and a nut 318B fitted to the feed screw 318A.
- the feed screw 318A is disposed along the guide rail 312 and is rotatably supported by a bearing (not shown).
- the nut 318B is connected to the carriage 310.
- the motor 316 is connected to the feed screw 318A and rotates the feed screw 318A forward and backward.
- the gantry 300 supports the first support frame 122 and the second support frame 170.
- the first support frame 122 and the second support frame 170 constitute one support frame as a set, and are provided in units of recording units.
- One gantry 300 supports a plurality of support frames. That is, a plurality of first support frames 122 and second support frames 170 are supported by one.
- the gantry 300 includes a pair of support plates 330.
- the pair of support plates 330 is fixedly attached to the carriage 310.
- a pair of support plates 330 attached to the carriage 310 are disposed to face each other with the image recording drum 42 interposed therebetween.
- a pair of first support frame pedestals 332 and a pair of second support frame pedestals 334 are provided on surfaces of the pair of support plates 330 facing each other.
- the pair of first support frame receivers 332 and the pair of second support frame receivers 334 are provided for each recording unit, and are arranged in an arc shape with a constant interval.
- the pair of first support frame pedestals 332 is an example of a first support frame support part and supports the first support frame 122.
- the first support frame 122 is a frame to which the head module 120 is attached.
- the first support frame 122 is provided with first support frame attachment portions 122 ⁇ / b> A projecting from both ends in the longitudinal direction.
- the first support frame attachment portion 122 ⁇ / b> A has a rectangular flat plate shape and includes a first support frame attachment surface 122 a parallel to the nozzle surface 112.
- the first support frame attachment portion 122A includes a first support frame attachment hole 122B.
- the first support frame mounting hole 122B is provided orthogonal to the first support frame mounting surface 122a and through the first support frame mounting portion 122A.
- the first support frame pedestal 332 has a rectangular flat plate shape and is provided so as to protrude inside the support plate 330.
- the first support frame receiving base 332 includes a concave first support frame receiving part 332A into which the first support frame mounting part 122A is fitted.
- the first support frame receiving portion 332A includes a flat first support frame receiving surface 332a on the bottom surface.
- the first support frame receiving base 332 includes a first support frame fixing hole 332B.
- the first support frame fixing hole 332 ⁇ / b> B is provided perpendicular to the first support frame receiving surface 332 a and penetrating the first support frame receiving base 332.
- the first support frame 122 is fitted with the first support frame mounting portions 122A provided at both ends thereof in the first support frame receiving portions 332A of the first support frame receiving base 332, so that both ends in the longitudinal direction are the first support.
- the frame support 332 is supported at both ends and is mounted on the gantry 300.
- the first support frame 122 mounted on the gantry 300 has a first support frame mounting hole 122B provided in the first support frame attachment portion 122A, and a first support frame fixing provided in the first support frame support 332. It arrange
- the first support frame 122 is positioned and fixed to the first support frame receiving base 332 by inserting the first support frame fixing pin 336 into the first support frame mounting hole 122B and the first support frame fixing hole 332B. .
- each 1st support frame receiving stand 332 is arrange
- each first support frame pedestal 332 is installed to be inclined according to the installation angle of the inkjet heads 110C, 110M, 110Y, and 110K to be supported. That is, the first support frame receiving surface 332a is installed to be inclined in accordance with the inclination angle of the nozzle surface of the inkjet head to be supported.
- each of the inkjet heads 110C, 110M, 110Y, and 110K supported by the first support frame 122 enters the transport path PP of the paper P. It is arranged in a circular arc shape at regular intervals along.
- the pair of second support frame pedestals 334 is an example of a second support frame support part, and supports the second support frame 170.
- the second support frame 170 supports a part of the ink supply unit 130.
- the supply manifold 138, the recovery manifold 140, the individual supply pipe 146, the individual recovery pipe 148, the individual supply damper 154, the individual recovery damper 156, the individual supply valve 158, and the individual recovery valve 160 are supported (FIG. 8). reference).
- a driving substrate, a sensor, and the like for driving the inkjet head 110 are attached to the second support frame 170. These are members preferably disposed in the vicinity of the inkjet head 110.
- reference numeral 124 denotes electrical wiring extending from each head module 120.
- the electrical wiring 124 is connected to a driving substrate supported by the second support frame 170.
- the second support frame 170 includes a long second support frame body 170X. Each member of the ink supply unit 130 is attached to the second support frame main body 170X.
- the second support frame main body 170X includes second support frame attachment portions 170A at both ends in the longitudinal direction.
- the second support frame mounting portion 170A has a rectangular flat plate shape and includes a flat second support frame mounting surface 170a.
- the second support frame attachment portion 170A includes a second support frame attachment hole 170B.
- the second support frame mounting hole 170B is provided perpendicular to the second support frame mounting surface 170a and through the second support frame mounting portion 170A.
- the second support frame pedestal 334 has a rectangular flat plate shape and is provided so as to protrude inside the support plate 330.
- the second support frame receiving base 334 includes a concave second support frame receiving part 334A into which the second support frame attaching part 170A is fitted.
- the second support frame receiving portion 334A includes a flat second support frame receiving surface 334a on the bottom surface.
- the second support frame cradle 334 includes a second support frame fixing hole 334B.
- the second support frame fixing hole 334B is provided orthogonal to the second support frame receiving surface 334a and penetrating the second support frame receiving base 334.
- the second support frame 170 is fitted with the second support frame mounting portions 170A provided at both ends thereof in the second support frame receiving portions 334A of the second support frame receiving base 334, so that both ends in the longitudinal direction are second supported.
- the frame support 334 is supported at both ends and mounted on the gantry 300.
- the second support frame 170 mounted on the gantry 300 has a second support frame mounting hole 170 ⁇ / b> B provided in the second support frame mounting portion 170 ⁇ / b> A, and a second support frame fixing provided in the second support frame receiving base 334. It arrange
- the second support frame 170 is positioned and fixed to the second support frame receiving base 334 by inserting the second support frame fixing pin 338 into the second support frame mounting hole 170B and the second support frame fixing hole 334B. .
- the second support frame receivers 334 are arranged in an arc shape at the same interval as the first support frame receivers 332. Specifically, assuming that a straight line passing through the rotation center O of the image recording drum 42 and the center of the first support frame receiving surface 332a of the first support frame receiving base 332 is L1, the second support frame receiving base 334 is It arrange
- the second support frame receiving table 334 is arranged such that the second support frame receiving surface 334a is orthogonal to the straight line L1 and the center of the second support frame receiving surface 334a passes through the straight line L1.
- the first support frame 122 and the second support frame 170 are arranged in series on the same straight line.
- the first support frame receiving surface 332a of the first support frame receiving base 332 is provided orthogonal to the straight line L1. Therefore, when the first support frame 122 is supported by the first support frame pedestal 332, the nozzle surface 112 of the inkjet head 110 supported by the first support frame 122 is also arranged orthogonal to the straight line L1.
- the direction of the straight line L1 is the same as the ink discharge direction of the inkjet head 110. Therefore, when the first support frame 122 is supported by the first support frame pedestal 332 and the second support frame 170 is supported by the second support frame pedestal 334, the first support frame 122 and the second support frame 170 are The ink jet head 110 is arranged in series along the ink ejection direction.
- connection arm 180 for connecting to the first support frame 122 at both ends in the longitudinal direction.
- the connection arm 180 is an example of a connection member.
- the connecting arm 180 is connected to the first support frame 122 via a pin 182.
- the second support frame 170 is provided with a deflection correction mechanism 340 that corrects the deflection generated in the first support frame 122.
- the deflection correction mechanism 340 is an example of a deflection correction unit.
- both ends of the first support frame 122 are supported by the first support frame pedestal 332 and mounted on the gantry 300.
- the deflection correction mechanism 340 applies a pressing force to the first support frame 122 to correct the deflection generated in the first support frame 122.
- FIG. 11 is a front view showing a schematic configuration of the deflection correcting mechanism.
- FIG. 12 is an enlarged view of the deflection correcting mechanism.
- the deflection correction mechanism 340 includes a pressing spring 342 and applies a pressing force by the pressing spring 342 to the first support frame 122.
- the pressing spring 342 is provided on the pressing spring support 344 provided on the second support frame 170.
- the pressing spring support 344 has an elongated flat plate shape, and a base end portion is fixed to the second support frame 170.
- the pressing spring 342 is provided at the tip of the pressing spring support 344.
- the pressing spring 342 includes a hemispherical contact 346 at the tip.
- the deflection correcting mechanism 340 brings the contact 346 into contact with the first support frame 122 and applies a pressing force by the pressing spring 342 to the first support frame 122.
- the position where the contact 346 abuts is set to a position where the deflection can be corrected.
- the position where the deflection is greatest is the central portion in the longitudinal direction. Therefore, when pressing only one place, it is preferable that the contact 346 is brought into contact with the central portion in the longitudinal direction or the vicinity thereof.
- the direction in which the pressing force is applied is set to a direction in which the deflection can be corrected. Specifically, it sets to the direction which cancels bending.
- the pressing force in the direction D3 opposite to the inclination direction D2 of the ink jet head 110 is applied for the purpose of correcting the bending caused by the ink jet head 110 being inclined. is doing.
- the deflections that occur in the first support frames 122 are the inkjet heads 110C, 110M. , 110Y, and 110K. Therefore, the direction of the pressing force applied by the pressing spring 342 is individually set for each first support frame 122.
- the magnitude of the pressing force to be applied is also set according to the magnitude of the deflection generated in each first support frame 122. As described above, since the deflection generated in the first support frame 122 differs for each first support frame 122, the magnitude of force required for correction also differs. Therefore, the magnitude of the pressing force applied by the pressing spring 342 is also set individually for each first support frame 122.
- the ink jet head 110 is supported by the first support frame 122 and installed on the gantry 300 via the first support frame 122.
- the gantry 300 includes a first support frame pedestal 332 as a first support frame support, and the first support frame pedestal 332 supports both ends of the first support frame 122 in the longitudinal direction, thereby fixing the inkjet head 110 to a predetermined level. Is supported at a predetermined position.
- the first support frame 122 may be bent by its own weight.
- the ink jet recording apparatus 1 since the ink jet recording apparatus 1 according to the present embodiment includes the bend correction mechanism 340 for correcting the bend generated in the first support frame 122, this can be effectively prevented.
- the deflection correction mechanism 340 is provided in the second support frame 170 and presses the first support frame 122 with a pressing spring 342 to correct the deflection of the first support frame 122. Thereby, even if it is a case where both ends of a longitudinal direction are supported, bending can be prevented and a high quality image can be recorded.
- the bending correction mechanism 340 is provided in the second support frame 170, the structure on the gantry side can be simplified. Thereby, the installation space
- first support frame 122 that supports the inkjet head 110 and the second support frame 170 that supports the ink supply unit 130 and the like are separated into a first frame that supports the inkjet head 110.
- One support frame 122 can be reduced in weight. Thereby, it is possible to effectively prevent the first support frame 122 that is a frame that supports the inkjet head 110 from being bent.
- ⁇ Pressing force setting method> As described above, the magnitude and direction of the pressing force applied to the first support frame 122 are set according to the bending that occurs in the first support frame 122.
- the deflection generated in the first support frame 122 is measured by printing a predetermined test chart, for example. Based on the measurement result, the magnitude and direction of the pressing force applied so as to correct the deflection are adjusted.
- the adjustment can be performed independently for each inkjet head according to a certain standard, but can also be adjusted so that the landing position distribution is the same among the inkjet heads. For example, one color as a reference is selected, and the deflection of the first support frame 122 of each inkjet head 110 is corrected so that the landing position distribution of the inkjet head is the same. For example, when a cyan inkjet head is used as a reference, the deflection of the first support frame 122 of each of the magenta, yellow, and black inkjet heads is corrected so that the landing position distribution of the cyan inkjet head is the same.
- the bending correction mechanism 340 is configured to press one location of the first support frame 122, but may be configured to press a plurality of locations.
- FIG. 13 is a schematic configuration diagram of a bending correction mechanism in a case where the bending is corrected by pressing a plurality of locations of the first support frame.
- the deflection correcting mechanism 340 includes a plurality of pressing springs 342 and presses a plurality of locations of the first support frame 122 to correct the deflection generated in the first support frame 122.
- the respective pressing springs 342 are arranged on the same straight line along the longitudinal direction of the first support frame 122, and are arranged symmetrically with respect to the longitudinal center of the first support frame 122.
- Each pressing spring 342 presses the first support frame 122 in the same direction via a contact (not shown). That is, pressing is performed in a direction opposite to the direction of inclination of the inkjet head 110 supported by the first support frame 122.
- the pressing force of each pressing spring 342 is set individually.
- the pressing force of the pressing spring 342 disposed at the center in the longitudinal direction is set to be the largest, and is set to be smaller toward the both ends.
- FIG. 14 is a front view showing a second embodiment of the deflection correcting mechanism.
- the force of the pressing spring 342 is directly applied to the first support frame 122.
- the force of the pressing spring 342 is applied using the principle of the lever. It acts on the first support frame 122.
- the deflection correcting mechanism 340A includes a lever 348 that is a lever.
- the lever 348 is swingably supported by a lever support portion 348A provided in the second support frame 170.
- the lever support portion 348A includes a swing shaft 348a set in parallel with the rotation shaft of the image recording drum 42.
- the lever 348 is supported so as to be swingable about the swing shaft 348a.
- a pressing spring 342 is provided at the base end of the lever 348.
- One end of the pressing spring 342 is fixed to the second support frame 170, and the other end is fixed to the proximal end portion of the lever 348 to apply a pressing force to the lever 348.
- This pressing force is a force that rotates the lever 348 in the counterclockwise direction in FIG.
- a contact 346 is provided at the tip of the lever 348.
- the contact 346 is pressed against the first support frame 122 to apply a pressing force to the first support frame 122.
- a pressing force can be applied to the first support frame 122 using the lever.
- the lever principle it is possible to correct the deflection generated in the first support frame 122 by efficiently using the force of the pressing spring 342.
- FIG. 15 is a front view showing a third embodiment of the deflection correcting mechanism.
- the deflection correcting mechanism 350 of the present embodiment corrects the deflection generated in the first support frame 122 by applying a tensile force to the first support frame 122.
- the deflection correcting mechanism 350 includes a tension spring 352 and applies a tensile force by the tension spring 352 to the first support frame 122.
- the tension spring 352 is provided on the tension spring support 354 provided on the second support frame 170.
- the tension spring support 354 has a long flat plate shape, and a base end portion is fixed to the second support frame 170.
- the tension spring 352 is provided at the tip of the tension spring support 354. One end of the tension spring 352 is fixed to the tension spring support 354, and the other end is connected to the first support frame 122 to apply a tensile force to the first support frame 122.
- the position where the tensile force by the tension spring 352 is applied is set to a position where the deflection can be corrected.
- a tensile force is applied only at one location as in this example, it is preferable to apply a tensile force to the central portion in the longitudinal direction or the vicinity thereof.
- the direction in which the tensile force is applied is set to a direction in which the deflection can be corrected. Specifically, it sets to the direction which cancels bending.
- a tensile force in the direction D3 opposite to the inclination direction D2 of the inkjet head 110 is applied for the main purpose of correcting the bending caused by the installation of the inkjet head 110 at an angle.
- the direction in which the tensile force is applied is set individually for each first support frame 122.
- the magnitude of the tensile force is also set according to the magnitude of the deflection generated in each first support frame 122. As described above, since the deflection generated in the first support frame 122 differs for each first support frame 122, the magnitude of force required for correction also differs. Therefore, the magnitude of the pressing force applied by the tension spring 352 is also individually set for each first support frame 122.
- the deflection correcting mechanism 350 is provided in the second support frame 170, the configuration on the gantry side can be simplified.
- a pressing force or a tensile force is applied to the first support frame from the deflection correction mechanism provided in the same support frame, but the first support is provided from the deflection correction mechanism provided in the adjacent support frame. It can also be set as the structure which gives a pressing force or tensile force to a flame
- FIG. 16 is a front view showing a schematic configuration in a case where the bending force generated in the first support frame is corrected by applying a tensile force to the first support frame from the bending correction mechanism provided in the adjacent support frame.
- reference numeral 122C denotes a first support frame of the cyan inkjet head 110C
- reference numeral 122M denotes a first support frame of the magenta inkjet head 110M
- Reference numeral 122Y denotes a first support frame of the yellow inkjet head 110Y
- reference numeral 122K denotes a first support frame of the black inkjet head 110K.
- Reference numeral 170C denotes a second support frame of the cyan inkjet head 110C
- reference numeral 170M denotes a second support frame of the magenta inkjet head 110M
- Reference numeral 170Y denotes a second support frame of the yellow inkjet head 110Y
- reference numeral 170K denotes a second support frame of the black inkjet head 110K.
- the first support frame 122C and the second support frame 170C of the cyan inkjet head 110C constitute a support frame of the cyan inkjet head 110C
- the first support frame 122M and the second support frame 170M of the magenta inkjet head 110M are A support frame of the magenta inkjet head 110M is formed.
- the first support frame 122Y and the second support frame 170Y of the yellow inkjet head 110Y constitute a support frame of the yellow inkjet head 110Y
- the first support frame 122K and the second support frame 170K of the black inkjet head 110K Constitutes a support frame of the black inkjet head 110K.
- reference numeral 350C denotes a bending correction mechanism that corrects the bending of the cyan first support frame 122C
- reference numeral 350M denotes a bending correction mechanism that corrects the bending of the magenta first support frame 122M
- Reference numeral 350Y denotes a bending correction mechanism that corrects the bending of the yellow first support frame 122Y
- reference numeral 350K denotes a bending correction mechanism that corrects the bending of the black first support frame 122K.
- reference numeral 352C is a tension spring provided in the cyan deflection correction mechanism 350C
- reference numeral 352M is a tension spring provided in the magenta deflection correction mechanism 350M
- Reference numeral 352Y is a tension spring provided in the yellow deflection correction mechanism 350Y
- reference numeral 352K is a tension spring provided in the black deflection correction mechanism 350K.
- a deflection correcting mechanism 350C that corrects the deflection of the cyan first support frame 122C is provided in the second support frame 170M of magenta, and the deflection correction that corrects the deflection of the first support frame 122M of magenta.
- the mechanism 350M is provided in the yellow second support frame 170Y.
- the deflection correcting mechanism 350Y for correcting the deflection of the yellow first support frame 122Y is provided in the second support frame 170M of magenta
- the deflection correcting mechanism 350K for correcting the deflection of the black first support frame 122K is Of the second support frame 170Y.
- one end of the tension spring 352C of the cyan deflection correcting mechanism 350C is fixed to the magenta second support frame 170M, and the other end is connected to the cyan first support frame 122C. A tensile force is applied to 122C.
- the tension spring 352M of the magenta deflection correcting mechanism 350M has one end fixed to the yellow second support frame 170Y and the other end connected to the magenta first support frame 122M to the magenta first support frame 122M. Apply tensile force.
- the tension spring 352Y of the yellow deflection correction mechanism 350Y has one end fixed to the magenta second support frame 170M and the other end connected to the yellow first support frame 122Y, to the yellow first support frame 122Y. Apply tensile force.
- the tension spring 352K of the black deflection correction mechanism 350K is fixed to the yellow second support frame 170Y at one end and connected to the black first support frame 122K at the other end to the black first support frame 122K. Apply tensile force.
- the first correction mechanism provided in the adjacent support frame is the first. It can also be set as the structure which gives pressing force to a support frame.
- FIG. 17 is a schematic configuration diagram when a pressing force is applied to the first support frame from the deflection correction mechanism provided in the adjacent support frame.
- a deflection correcting mechanism 350M that corrects the deflection of the magenta first support frame 122M is provided in the cyan second support frame 170C, and the deflection correction provided in the cyan second support frame 170C.
- the mechanism 350M applies a pressing force to the magenta first support frame 122M.
- a deflection correcting mechanism 350Y that corrects the deflection of the yellow first support frame 122Y is provided in the black second support frame 170K, and the deflection correcting mechanism 350Y provided in the black second support frame 170K provides a yellow first support frame 170Y. It is set as the structure which gives pressing force to 1 support frame 122Y.
- the bending correction mechanism for correcting the bending of the cyan first support frame 122C and the bending correction mechanism for correcting the bending of the black first support frame 122K are not illustrated.
- the deflection correcting mechanism for correcting the deflection of the cyan first support frame 122C may be provided in the cyan second support frame or may be provided in the magenta second support frame.
- the deflection correcting mechanism for correcting the deflection of the black first support frame 122K may be provided in the black second support frame 170K, or may be provided in the yellow second support frame 170Y.
- FIG. 18 is a front view showing a fifth embodiment of the deflection correcting mechanism.
- the deflection correcting mechanism 360 is generated in the first support frame 122 by applying a tensile force to the first support frame 122 from both sides of the first support frame 122 in the short direction. Correct the deflection.
- the short direction of the first support frame 122 is a direction orthogonal to the longitudinal direction of the first support frame 122.
- the deflection correcting mechanism 360 includes a first spring 362A that pulls one end of the first support frame 122 in the short direction, and a second spring 362B that pulls the other end of the first support frame 122 in the short direction.
- the first spring 362A and the second spring 362B are arranged symmetrically with the first support frame 122 interposed therebetween.
- the second support frame 170 includes a first spring support 364A to which the base end of the first spring 362A is fixed, and a second spring support 364B to which the base end of the second spring 362B is fixed. .
- the first spring support 364A and the second spring support 364B are arranged at the center in the longitudinal direction of the second support frame 170, and are arranged symmetrically with the second support frame 170 sandwiched in the short direction.
- the first support frame 122 includes a first spring connecting portion 366A to which the tip of the first spring 362A is connected, and a second spring connecting portion 366B to which the tip of the second spring 362B is connected.
- the first spring coupling portion 366A and the second spring coupling portion 366B are disposed at the center in the longitudinal direction of the first support frame 122, and are disposed symmetrically with the first support frame 122 sandwiched in the lateral direction.
- the first support frame 122 is pulled by the first spring 362A and the second spring 362B from both sides in the lateral direction, and the deflection is corrected. Is done.
- the pulling direction is opposite to the ink discharge direction.
- the bending can be corrected more appropriately by correcting the bending by applying a tensile force from two directions. That is, by pulling from two directions, fine adjustment can be made with respect to the correction of the deflection, and the deflection generated in each of the first support frames 122 can be corrected more appropriately.
- the fine adjustment is performed by individually adjusting the spring constant of the first spring 362A and the spring constant of the second spring 362B.
- the first support frame 122 is pulled only at the center in the longitudinal direction, but the first support frame 122 may be pulled at a plurality of locations.
- the configuration is such that the ink is pulled in the direction opposite to the ink ejection direction, but it can also be configured to be pulled at an angle.
- ⁇ Support frame> a part of the ink supply unit and the control board are mounted on the second support frame, but the members mounted on the second support frame are not limited to this. A member that needs to be disposed in the vicinity of the inkjet head can be mounted on the second support frame. Thereby, the support part of an inkjet head can be reduced in weight.
- the said embodiment is set as the structure which supports the both ends of the longitudinal direction of a 2nd support frame with a mount frame,
- a 2nd support frame it is not limited to this. It can also be set as the structure supported in multiple places of three or more places.
- first support frame and the second support frame are connected by the connecting member.
- first support frame and the second support frame may be separated from each other.
- a 1st support frame and a 2nd support frame are connected with a connection member, and can be attached or detached easily to a mount frame.
- first support frame and the second support frame are connected by a connecting member, they may be fixedly connected by bolts or welding, or may be movably connected by pins or the like. Moreover, when connecting movably, you may provide a locking mechanism.
- the material of the first support frame and the second support frame constituting the support frame is not particularly limited, but it is preferable to use a material having high rigidity.
- a material having high rigidity since the deformation directly affects the image quality, it is preferable to use a material having high rigidity and a low coefficient of thermal expansion.
- Invar can be used as the material for the first support frame.
- the second support frame can be made of metal such as aluminum or stainless steel because it has little influence on the image quality.
- the first support frame fixing pin 336 is inserted into the first support frame mounting hole 122B provided in the first support frame 122 and the first support frame fixing hole 332B provided in the first support frame receiving base 332.
- the first support frame 122 is fixed to the first support frame pedestal 332 by inserting it, but the method of fixing the first support frame to the gantry is not limited to this. Any structure that supports both ends of the first support frame in the longitudinal direction may be used.
- the first support frame is fixed at a fixed position with respect to the gantry, but a mechanism for raising and lowering the supported first support frame may be provided. That is, the gantry may be provided with lifting means for lifting and lowering the first support frame support portion.
- the ink jet heads are arranged in an arc shape, but the layout of the ink jet heads is set according to the medium conveying means. For example, when the medium is conveyed in a straight line, the medium is arranged in a straight line.
- the case where the inkjet heads that eject inks of different colors are mounted on one gantry has been described as an example.
- a plurality of inkjet heads that eject ink of the same color may be mounted on one gantry.
- the present invention is applicable.
- the gantry is mounted on the carriage, but the gantry can be fixedly installed in the machine.
- ⁇ Application to other devices> the case where the present invention is applied to an inkjet recording apparatus that records a color image on a general-purpose printing paper has been described as an example.
- the application of the present invention is not limited to this.
- a wiring drawing apparatus for drawing a wiring pattern of an electronic circuit by an ink jet method a manufacturing apparatus for various devices, a resist printing apparatus using a resin liquid as a functional liquid for ejection, a color filter manufacturing apparatus, and a material deposition
- the present invention can be widely applied to apparatuses for obtaining various shapes and patterns using a liquid functional material, such as a fine structure forming apparatus for forming a fine structure using the above material.
- SYMBOLS 1 Inkjet recording apparatus, 10 ... Paper feed part, 12 ... Paper feed apparatus, 12A ... Paper feed tray, 14 ... Feeder board, 16 ... Paper feed drum, 20 ... Treatment liquid application part, 22 ... Treatment liquid application drum, 23 DESCRIPTION OF SYMBOLS ... Gripper, 24 ... Processing liquid coating apparatus, 30 ... Processing liquid drying part, 32 ... Processing liquid drying drum, 33 ... Gripper, 34 ... Hot air blower, 40 ... Image recording part, 42 ... Image recording drum, 43 ... Gripper, 48 ... Scanner, 50 ... Ink drying section, 52 ... Chain delivery, 52A ... Chain, 52B ... Gripper, 54 ... Paper guide, 56 ...
- Warm air blowing unit 60 ... Stacking section, 62 ... Stacking device, 62A ... Stacking tray, 70: Maintenance unit, 72: Cap device, 72C, 72M, 72Y, 72K ... Cap, 74: Cleaning device, 74C, 74M, 74Y, 74K ... 100, head unit, 110 ... ink jet head, 110C ... cyan ink jet head, 110M ... magenta ink jet head, 110Y ... yellow ink jet head, 110K ... black ink jet head, 112 ... nozzle face, 112C, 112M, 112Y, 112K ... Nozzle surface, 120 ... head module, 120A ... head module discharge portion, 120a ...
- second support frame of yellow inkjet head 170K ... second support frame of black inkjet head, 170a ... second support frame mounting surface, 180 ... connecting arm, 182 ... pin, 200 ... computer, 202 DESCRIPTION OF SYMBOLS Communication part 204 ... Operation part 206 ... Display part 208 ... Memory
- First support frame receiving surface 334.
- Frame receiving portion, 334B ... second support frame fixing hole, 334a ... second support frame receiving surface, 336 ... first support frame fixing pin, 338 ... second support frame fixing pin, 340 ... deflection correction mechanism, 340A ... deflection correction Mechanism, 342 ... Pressing spring, 344 ... Pressing spring support, 346 ... Contact, 348 ... Lever, 348A ... Lever support part, 348a ... Oscillating shaft, 350 ... Deflection correction mechanism, 350C ... Cyan deflection correction mechanism, 350M ... Magenta deflection correction mechanism, 350Y ... Yellow deflection correction mechanism, 350K ... Black deflection correction mechanism, 352 ...
- Tension spring 352 ... tension spring of cyan deflection correction mechanism, 352M ... tension spring of magenta deflection correction mechanism, 352Y ... tension spring of yellow deflection correction mechanism, 352K ... tension spring of black deflection correction mechanism, 354 ... tension spring support, 360 ... Deflection correction mechanism, 362A ... 1st spring, 362B ... 2nd spring, 364A ... 1st spring support body, 364B ... 2nd spring support body, 366A ... 1st spring connection part, 366B ... 2nd spring connection part, N ... Nozzle, P ... Paper
Landscapes
- Ink Jet (AREA)
Abstract
Description
図1は、インクジェット記録装置の概略構成を示す正面図ある。また、図2は、図1に示すインクジェット記録装置の平面図である。
給紙部10は、用紙Pを1枚ずつ自動で給紙する。図1及び図2に示すように、給紙部10は、主として、給紙装置12と、フィーダボード14と、給紙ドラム16と、を備えて構成される。
処理液塗布部20は、用紙Pに処理液を塗布する。この処理液は、インク中の色材成分を凝集、不溶化ないし増粘させる機能を備えた液である。このような処理液を用紙Pに塗布することにより、汎用の印刷用紙を使用した場合であっても、高品位な画像を記録できる。
処理液乾燥部30は、処理液が塗布された用紙Pを乾燥処理する。処理液乾燥部30は、主として、用紙Pを搬送する処理液乾燥ドラム32と、処理液乾燥ドラム32によって搬送される用紙Pの記録面に温風を吹き当てる複数の温風送風機34と、を備えて構成される。
画像記録部40は、シアン(C)、マゼンタ(M)、イエロ(Y)、ブラック(K)の4色のインクを用いて用紙Pにカラー画像を記録する。図1に示すように、画像記録部40は、主として、用紙Pを搬送する画像記録ドラム42と、ヘッドユニット100と、用紙Pに記録された画像を読み取るスキャナ48と、を備えて構成される。
インク乾燥部50は、画像記録部40で記録された用紙Pを乾燥処理する。インク乾燥部50は、インクジェット記録装置に組み込んだ場合の用紙乾燥装置の一例である。
集積部60は、順次排紙される用紙Pを1カ所に集積する。図1及び図2に示すように、集積部60は、チェーンデリバリ52によってインク乾燥部50から搬送されてくる用紙Pを受け取り、集積する集積装置62を備える。
メンテナンス部70は、画像記録部40に備えられたインクジェットヘッド110C、110M、110Y、110Kのメンテナンスを行う。メンテナンス部70は、図2に示すように、主として、インクジェットヘッド110C、110M、110Y、および110Kのノズル面をキャップで覆うキャップ装置72と、インクジェットヘッド110C、110M、110Y、および110Kのノズル面を払拭してクリーニングするクリーニング装置74と、を備えて構成される。
図4は、インクジェット記録装置の制御系の概略構成を示すブロック図である。
次に、本実施の形態のインクジェット記録装置1による画像の記録処理の手順について説明する。
〈インクジェットヘッドの構造〉
まず、インクジェットヘッド110C、110M、110Y、および110Kの構成について説明する。なお、各インクジェットヘッド110C、110M、110Y、および110Kの構成は同じなので、以下においては、特に区別する場合を除いて、インクジェットヘッドには符号110を使用して、その説明を行う。
図8は、インク供給部の概略構成を示す図である。
上記のように、各インクジェットヘッド110C、110M、110Y、および110Kは、キャリッジに備えられた架台に搭載される。
キャリッジ310は、矩形の枠形状を有する。キャリッジ310は、一対のガイドレール312に沿って移動可能に設けられる。一対のガイドレール312は、画像記録ドラム42の回転軸と平行に配設される。キャリッジ310は、この一対のガイドレール312に一対のスライダ314を介して摺動自在に支持される。
架台300は、第1支持フレーム122及び第2支持フレーム170を支持する。第1支持フレーム122及び第2支持フレーム170は、1組で1つの支持フレームを構成し、記録ユニット単位で設けられる。架台300は、1つで複数の支持フレームを支持する。すなわち、1つで複数の第1支持フレーム122及び第2支持フレーム170を支持する。
一対の第1支持フレーム受台332は、第1支持フレーム支持部の一例であり、第1支持フレーム122を支持する。上記のように、第1支持フレーム122は、ヘッドモジュール120が取り付けられるフレームである。
一対の第2支持フレーム受台334は、第2支持フレーム支持部の一例であり、第2支持フレーム170を支持する。上記のように、第2支持フレーム170は、インク供給部130の一部を支持する。具体的には、供給マニホールド138、回収マニホールド140、個別供給配管146、個別回収配管148、個別供給ダンパ154、個別回収ダンパ156、個別供給バルブ158、及び、個別回収バルブ160を支持する(図8参照)。第2支持フレーム170には、この他、インクジェットヘッド110を駆動するための駆動基板やセンサ等が取り付けられる。これらは、インクジェットヘッド110の近傍に配置することが好ましい部材である。
図10に示すように、第2支持フレーム170には、その長手方向の両端部に第1支持フレーム122と連結するための連結アーム180が備えられる。連結アーム180は、連結部材の一例である。連結アーム180は、ピン182を介して、第1支持フレーム122に接続される。
図10に示すように、第2支持フレーム170には、第1支持フレーム122に生じる撓みを矯正する撓み矯正機構340が備えられる。撓み矯正機構340は、撓み矯正手段の一例である。
以上のように構成されるインクジェットヘッド110の支持構造によれば、インクジェットヘッド110は、第1支持フレーム122に支持され、この第1支持フレーム122を介して架台300に設置される。
上記のように、第1支持フレーム122に付与する押圧力の大きさ及び方向は、第1支持フレーム122に生じる撓みに応じて設定される。第1支持フレーム122に生じる撓みは、たとえば、所定のテストチャートを印字して測定する。この測定結果に基づいて、撓みが矯正されるように付与する押圧力の大きさ及び方向を調整する。
上記実施の形態において、撓み矯正機構340は、第1支持フレーム122の1カ所を押圧する構成としているが、複数カ所を押圧する構成とすることもできる。
図14は、撓み矯正機構の第2の実施の形態を示す正面図である。
図15は、撓み矯正機構の第3の実施の形態を示す正面図である。
上記実施の形態では、同じ支持フレームに備えられた撓み矯正機構から第1支持フレームに押圧力又は引張力を付与する構成としているが、隣接する支持フレームに備えられた撓み矯正機構から第1支持フレームに押圧力又は引張力を付与する構成とすることもできる。
図18は、撓み矯正機構の第5の実施の形態を示す正面図である。
〈インクジェットヘッド〉
上記実施の形態では、複数のヘッドモジュールを繋ぎ合わせて構成したインクジェットヘッドを支持する場合を例に説明したが、本発明は単体で構成されたインクジェットヘッドを支持する場合にも同様に適用できる。
上記実施の形態では、第2支持フレームにインク供給部の一部及び制御基板を搭載する構成としているが、第2支持フレームに搭載する部材は、これに限定されるものではない。インクジェットヘッドの近傍に配置する必要のある部材については、この第2支持フレームに搭載することができる。これにより、インクジェットヘッドの支持部を軽量化できる。
上記実施の形態では、第1支持フレーム122に備えられた第1支持フレーム取付穴122B及び第1支持フレーム受台332に備えられた第1支持フレーム固定穴332Bに第1支持フレーム固定ピン336を差し込むことにより、第1支持フレーム122を第1支持フレーム受台332に固定する構造としているが、第1支持フレームを架台に固定する方法は、これに限定されるものではない。第1支持フレームの長手方向の両端を支持する構造であればよい。
上記実施の形態では、インクジェットヘッドを円弧状に配置しているが、インクジェットヘッドのレイアウトは、メディアの搬送手段に応じて設定される。たとえば、メディアを直線状に搬送する場合は、直線状に配置される。
上記実施の形態では、架台をキャリッジに搭載しているが、架台を機内に固定的に設置することもできる。
上記実施形態では、汎用の印刷用紙にカラー画像を記録するインクジェット記録装置に本発明を適用した場合を例に説明したが、本発明の適用は、これに限定されるものではない。この他、たとえば、電子回路の配線パターンをインクジェット方式により描画する配線描画装置、各種デバイスの製造装置、吐出用の機能性液体として樹脂液を用いるレジスト印刷装置、カラーフィルター製造装置、マテリアルデポジション用の材料を用いて微細構造物を形成する微細構造物形成装置など、液状機能性材料を用いて様々な形状やパターンを得る装置に広く適用できる。
Claims (10)
- 長尺状のインクジェットヘッドと、前記インクジェットヘッドにインクを供給するインク供給部と、を備えた複数の記録ユニットと、
前記インクジェットヘッドを支持する第1支持フレームと、前記インク供給部の少なくとも一部を支持する第2支持フレームと、を備えた複数の支持フレームと、
前記第1支持フレームの長手方向の両端を支持する複数の第1支持フレーム支持部と、前記第2支持フレームを支持する複数の第2支持フレーム支持部と、を備えた架台と、
前記第2支持フレームに備えられ、前記第1支持フレームの少なくとも一部に押圧力又は引張力を付与して、前記第1支持フレームを前記第1支持フレーム支持部により支持した場合に前記第1支持フレームに生じる撓みを矯正する撓み矯正手段と、
を備えたインクジェット記録装置。 - 前記インクジェットヘッドは、複数のヘッドモジュールを繋ぎ合わせて構成される、
請求項1に記載のインクジェット記録装置。 - 前記第1支持フレーム支持部は、円弧状の搬送経路に沿って搬送されるメディアの前記搬送経路に沿って円弧状に配置される、
請求項1又は2に記載のインクジェット記録装置。 - 前記支持フレームは、前記第1支持フレーム及び前記第2支持フレームが連結部材を介して連結される、
請求項1から3のいずれか1項に記載のインクジェット記録装置。 - 前記撓み矯正手段は、バネを備え、前記バネによる押圧力又は引張力を前記第1支持フレームに付与する、
請求項1から4のいずれか1項に記載のインクジェット記録装置。 - 前記撓み矯正手段は、更に梃子を備え、前記梃子を介して前記バネによる押圧力又は引張力を前記第1支持フレームに付与する、
請求項5に記載のインクジェット記録装置。 - 前記撓み矯正手段は、前記第1支持フレームの短手方向の一端を引張する第1バネと、前記第1支持フレームの短手方向の他端を引張する第2バネと、を備える、
請求項1から4のいずれか1項に記載のインクジェット記録装置。 - 前記撓み矯正手段は、隣接して配置される前記支持フレームの前記第1支持フレームに引張力を付与する、
請求項1から6のいずれか1項に記載のインクジェット記録装置。 - 前記支持フレームは、前記第1支持フレーム及び前記第2支持フレームが、前記第1支持フレームに支持される前記インクジェットヘッドのインク吐出方向に沿って直列して配置される、
請求項1から8のいずれか1項に記載のインクジェット記録装置。 - 前記架台が搭載されるキャリッジを更に備える、
請求項1から9のいずれか1項に記載のインクジェット記録装置。
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JP2017504566A JP6150449B2 (ja) | 2015-03-11 | 2015-12-03 | インクジェット記録装置 |
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US (1) | US9895890B2 (ja) |
JP (1) | JP6150449B2 (ja) |
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Cited By (3)
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JPWO2017073526A1 (ja) * | 2015-10-29 | 2018-08-09 | 富士フイルム株式会社 | 液体吐出ヘッド、及び液体吐出装置 |
JP2019171572A (ja) * | 2018-03-26 | 2019-10-10 | ブラザー工業株式会社 | 液体吐出装置及びヘッドユニット |
JP2020189458A (ja) * | 2019-05-23 | 2020-11-26 | コニカミノルタ株式会社 | インクジェット記録装置 |
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US11299705B2 (en) | 2016-11-07 | 2022-04-12 | Deka Products Limited Partnership | System and method for creating tissue |
WO2020018071A1 (en) * | 2018-07-17 | 2020-01-23 | Hewlett-Packard Development Company, L.P. | Nozzle clearing of non-vertical ejectors |
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JP3864953B2 (ja) * | 2003-12-25 | 2007-01-10 | ブラザー工業株式会社 | インクジェットヘッド、インクジェットヘッドアセンブリ及びそれを含んだインクジェットプリンタ |
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JP2012071472A (ja) * | 2010-09-28 | 2012-04-12 | Fujifilm Corp | インクジェット記録装置 |
JP2013230643A (ja) * | 2012-05-01 | 2013-11-14 | Konica Minolta Inc | インクジェット記録装置 |
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JPWO2017073526A1 (ja) * | 2015-10-29 | 2018-08-09 | 富士フイルム株式会社 | 液体吐出ヘッド、及び液体吐出装置 |
JP2019171572A (ja) * | 2018-03-26 | 2019-10-10 | ブラザー工業株式会社 | 液体吐出装置及びヘッドユニット |
JP7040202B2 (ja) | 2018-03-26 | 2022-03-23 | ブラザー工業株式会社 | 液体吐出装置及びヘッドユニット |
JP2020189458A (ja) * | 2019-05-23 | 2020-11-26 | コニカミノルタ株式会社 | インクジェット記録装置 |
JP7283226B2 (ja) | 2019-05-23 | 2023-05-30 | コニカミノルタ株式会社 | インクジェット記録装置 |
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DE112015006165B4 (de) | 2018-11-29 |
US9895890B2 (en) | 2018-02-20 |
DE112015006165T5 (de) | 2017-11-02 |
JP6150449B2 (ja) | 2017-06-21 |
JPWO2016143205A1 (ja) | 2017-08-31 |
US20170368827A1 (en) | 2017-12-28 |
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