WO2023112498A1 - 印刷装置 - Google Patents

印刷装置 Download PDF

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Publication number
WO2023112498A1
WO2023112498A1 PCT/JP2022/039848 JP2022039848W WO2023112498A1 WO 2023112498 A1 WO2023112498 A1 WO 2023112498A1 JP 2022039848 W JP2022039848 W JP 2022039848W WO 2023112498 A1 WO2023112498 A1 WO 2023112498A1
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WO
WIPO (PCT)
Prior art keywords
cleaning liquid
nozzle
liquid holding
holding surface
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/039848
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
和雅 服部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
Original Assignee
Fujifilm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Priority to JP2023567584A priority Critical patent/JPWO2023112498A1/ja
Priority to EP22907032.1A priority patent/EP4450288A4/en
Publication of WO2023112498A1 publication Critical patent/WO2023112498A1/ja
Priority to US18/736,501 priority patent/US20240316937A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16552—Cleaning of print head nozzles using cleaning fluids
    • 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
    • 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
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16535—Cleaning of print head nozzles using wiping constructions
    • 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
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16535—Cleaning of print head nozzles using wiping constructions
    • B41J2/16538—Cleaning of print head nozzles using wiping constructions with brushes or wiper blades perpendicular to the nozzle plate
    • 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
    • B41J2/16588—Print heads movable towards the cleaning unit
    • 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
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16535—Cleaning of print head nozzles using wiping constructions
    • B41J2002/1655—Cleaning of print head nozzles using wiping constructions with wiping surface parallel with nozzle plate and mounted on reels, e.g. cleaning ribbon cassettes
    • 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
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/16552—Cleaning of print head nozzles using cleaning fluids
    • B41J2002/16558—Using cleaning liquid for wet wiping

Definitions

  • the present invention relates to a printing device, and more particularly to technology for cleaning the nozzle surface of a print head.
  • inkjet recording device when the nozzle surface of the print head is stained by deteriorated ink, nozzles with ejection failure occur. In particular, when a single-pass type print head has a nozzle with an ejection failure, streaks occur in a recorded image, resulting in a significant deterioration in image quality. For this reason, in an inkjet recording apparatus, in order to prevent the occurrence of an ejection abnormality and quickly recover from the ejection abnormality, maintenance of the print head such as preliminary ejection, pressure purge, wiping of the nozzle surface, and nozzle suction is performed. done.
  • Patent Literature 1 describes a print head maintenance device in which the upper surface of a base faces the nozzle surface of a print head and is arranged close to form a liquid storage space, and liquid is supplied to the liquid storage space. It is
  • Patent Document 2 discloses an inkjet recording apparatus equipped with maintenance means for cleaning the nozzle forming surface with the cleaning liquid by bringing the nozzle forming surface of the print head and the liquid film of the cleaning liquid formed on the cleaning liquid holding surface into contact with each other. Are listed.
  • the mixture of the ink and the cleaning liquid may remain at the end of the print head. If the remaining mixture adheres to the print head, there is a concern that replacement and adjustment of the print head will become difficult.
  • wiping the nozzle surface of the print head so that the mixture does not stick may damage the nozzle surface of the print head if the ink contains a relatively hard pigment.
  • the mixture remains on the side of the cleaning device that cleans the print head.
  • the residual mixture builds up on the cleaning device, the accumulated mixture contacts the nozzle face of the printhead. As a result, the ejection property of the print head is disturbed, resulting in image defects in printed matter.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a printing apparatus that prevents a mixture of ink and cleaning liquid from remaining when cleaning the print head.
  • One aspect of a printing apparatus for achieving the above object is a print head that ejects ink from a plurality of nozzles arranged on a nozzle surface, a cleaning liquid holding member having a cleaning liquid holding surface, the print head and the cleaning liquid holding member.
  • the nozzle surface has a nozzle region having liquid repellency in which a plurality of nozzles are arranged and a non-nozzle region having relatively lower liquid repellency than the nozzle region, and the length of the nozzle surface in the first direction is Lp , where Ln is the length of the nozzle region in the first direction, and Lc is the length of the cleaning liquid holding surface in the first direction, the printing apparatus satisfies the relationship of Ln ⁇ Lc ⁇ Lp. According to this aspect, it is possible to prevent the mixture of the ink and the cleaning liquid from remaining on the print head when the print head is cleaned.
  • the relative movement mechanism causes the entire first direction of the cleaning liquid holding surface to face the nozzle surface, and the entire first direction of the nozzle region to face the cleaning liquid holding surface. This can prevent the mixture from remaining at the end of the print head.
  • the relative movement mechanism preferably causes the cleaning liquid holding surface and the nozzle surface to face each other with the first direction inclined with respect to the horizontal surface.
  • the cleaning liquid holding member has a side surface that is continuous with the cleaning liquid holding surface, and the angle formed by the side surface on the lower side in the vertical direction and the cleaning liquid holding surface is an acute angle. This makes it easier for the mixture to flow downward in the vertical direction of the side surface, thereby suppressing the mixture from remaining on the cleaning liquid holding member.
  • the sides preferably have liquid repellency. Thereby, it is possible to suppress the mixture from remaining in the cleaning liquid holding member.
  • the cleaning liquid application mechanism applies the cleaning liquid to the cleaning liquid holding surface from the lower side to the upper side in the vertical direction. As a result, the flow velocity of the cleaning liquid can be made relatively slow, and the amount of cleaning liquid used can be relatively reduced.
  • the cleaning liquid holding member has a cleaning liquid supply port on the cleaning liquid holding surface, and the cleaning liquid application mechanism ejects the cleaning liquid from the cleaning liquid supply port.
  • the cleaning liquid can be applied to the cleaning liquid holding surface with a simple configuration.
  • the relative movement mechanism preferably faces the cleaning liquid supply port and the non-nozzle region. As a result, the cleaning liquid can be ejected to apply the cleaning liquid to the cleaning liquid holding surface without affecting the ink in the nozzles.
  • the relative movement mechanism relatively moves the print head in a second direction perpendicular to the first direction and parallel to the cleaning liquid holding surface while the cleaning liquid holding surface and the nozzle surface face each other. It is preferable to let Accordingly, even if the length of the cleaning liquid retaining surface in the second direction is shorter than the length of the nozzle surface in the second direction, the entire nozzle surface can be cleaned.
  • a plurality of print heads are preferably arranged in the second direction. Even when multiple printheads are arranged in the second direction, the entire nozzle face can be cleaned.
  • a wiping device that wipes the cleaned nozzle surface with a wiping member.
  • the cleaning liquid remaining on the nozzle surface after cleaning can be removed.
  • FIG. 1 is a perspective view of a printbar.
  • FIG. 2 is a plan view of the nozzle plate.
  • FIG. 3 is a schematic configuration diagram of the print head cleaning device.
  • FIG. 4 is a perspective view of the cleaning liquid applying head.
  • 5 is a cross-sectional view taken along line 5-5 of FIG. 4.
  • FIG. 6 is a side view of the printhead cleaning device.
  • FIG. 7 is a side view of the print head cleaning device according to the first embodiment.
  • FIG. 8 is a side view of the print head cleaning device according to the second embodiment.
  • FIG. 9 is a side view of the print head cleaning device according to the third embodiment.
  • FIG. 10 is a side view showing a schematic configuration of an image recording section of the inkjet recording apparatus.
  • FIG. 10 is a side view showing a schematic configuration of an image recording section of the inkjet recording apparatus.
  • FIG. 11 is a front view showing a schematic configuration of an image recording section of the inkjet recording apparatus.
  • FIG. 12 is a side view of the cleaning liquid deposition unit viewed from the maintenance position side.
  • FIG. 13 is a block diagram showing the electrical configuration of the image recording section.
  • FIG. 1 is a perspective view of a printbar with printheads to be cleaned by a printhead cleaning apparatus.
  • the print bar 116 has 17 inkjet heads 117 (an example of a “print head”) arranged side by side in the X direction (an example of the “second direction”).
  • the nozzle surface 130 of the inkjet head 117 is composed of a nozzle plate 132 , wing portions 134 and end cap portions 136 .
  • the nozzle plate 132 (an example of the “nozzle region”) is subjected to liquid repellent treatment and has liquid repellency.
  • the wing portions 134 (an example of the “non-nozzle region”) and the end cap portions 136 are relatively less liquid repellent than the nozzle plate 132 .
  • FIG. 2 is a plan view of the nozzle plate 132 of the nozzle surface 130 and shows one inkjet head 117.
  • FIG. The nozzle plate 132 has a plurality of nozzles 138 in the V direction inclined at an angle ⁇ with respect to the X direction parallel to the horizontal plane, and in the W direction inclined at an angle ⁇ with respect to the Y1 direction orthogonal to the X direction. arranged in a matrix.
  • the Y1 direction is a Y direction orthogonal to the X direction, and is a direction inclined by an angle ⁇ with the X direction as an axis with respect to the Y direction parallel to the horizontal plane.
  • the inkjet head 117 ejects ink droplets from nozzles 138 using a so-called piezo method.
  • Each nozzle 138 communicates with a pressure chamber, and ink droplets are ejected from the nozzle 138 by vibrating the wall surface of the pressure chamber with a piezoelectric element.
  • the ink may be, for example, an aqueous ink.
  • Aqueous ink refers to an ink in which coloring materials such as dyes and pigments are dissolved or dispersed in water and a water-soluble solvent.
  • FIG. 3 is a schematic configuration diagram of the print head cleaning device 10 for cleaning the print head, and shows a state viewed from the Y1 direction.
  • the print head cleaning device 10 includes a cleaning liquid application head 12 , cleaning liquid tank 14 , supply channel 16 , supply pump 18 , recovery tray 20 , recovery channel 22 and recovery tank 24 .
  • the cleaning liquid deposition head 12 is erected vertically upward (+Z direction).
  • a cleaning liquid for cleaning the nozzle surface 130 of the inkjet head 117 is stored in the cleaning liquid tank 14 .
  • the cleaning liquid for example, a cleaning liquid containing diethylene monobutyl ether as a main component is used.
  • the cleaning liquid tank 14 communicates with the cleaning liquid deposition head 12 via a supply channel 16 .
  • a supply pump 18 is provided in the supply flow path 16 .
  • a supply pump 18 (an example of a “cleaning liquid deposition mechanism”) supplies the cleaning liquid stored in the cleaning liquid tank 14 to the cleaning liquid deposition head 12 .
  • the collection tray 20 is arranged vertically below the cleaning liquid deposition head 12 (-Z direction).
  • the collection plate 20 has a shape with an open top.
  • the bottom of the recovery tray 20 is inclined with respect to the horizontal plane, and a recovery hole (not shown) is provided at the lower end in the direction of inclination.
  • the recovery hole communicates with a recovery tank 24 via a recovery channel 22 .
  • the print bar 116 is arranged at a position where the nozzle surface 130 of the inkjet head 117 faces the cleaning liquid deposition head 12 in parallel by a relative movement mechanism (for example, the transport control unit 202 shown in FIG. 13).
  • the cleaning liquid deposition head 12 cleans the nozzle surface 130 with the cleaning liquid supplied from the cleaning liquid tank 14 .
  • the relative movement mechanism moves the print bar 116 in the X direction, so that the cleaning liquid deposition head 12 sequentially cleans the nozzle surfaces 130 of the inkjet heads 117 .
  • the cleaning liquid that has washed the nozzle surface 130 is recovered in the recovery tray 20 together with the ink removed from the nozzle surface 130 .
  • the mixture of cleaning liquid and ink collected in the collection tray 20 is collected in the collection tank 24 via the collection channel 22 .
  • FIG. 4 is a perspective view of the cleaning liquid deposition head 12.
  • FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.
  • the cleaning liquid deposition head 12 (an example of a “cleaning liquid holding member”) has a cleaning liquid holding surface 30 and cleaning liquid supply ports 32 .
  • the cleaning liquid holding surface 30 is a rectangular plane.
  • the cleaning liquid retaining surface 30 is provided parallel to the XY1 plane which is inclined by an angle ⁇ with the X direction as the axis with respect to the XY plane which is a horizontal plane.
  • the cleaning liquid supply port 32 (an example of a cleaning liquid application mechanism) is a hole partially opened in the cleaning liquid holding surface 30 .
  • the cleaning liquid supply port 32 ejects the cleaning liquid supplied from the cleaning liquid tank 14 and supplies it to the cleaning liquid holding surface 30 .
  • FIG. 6 is a schematic diagram showing a cross section of the print head cleaning device 10, and is a schematic diagram showing how the nozzle surface 130 of the inkjet head 117 is cleaned.
  • the nozzle surface 130 and the cleaning liquid retaining surface 30 are arranged to face each other in parallel.
  • the nozzle plate 132 and the entire Y1 direction of the nozzle surface 130 are arranged at a position facing the cleaning liquid holding surface 30 .
  • the cleaning liquid supply port 32 is arranged at a position facing the wing portion 134 .
  • the cleaning liquid is supplied from the cleaning liquid supply port 32 to the cleaning liquid holding surface 30 in an amount equal to or larger than the amount that fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30 .
  • the cleaning liquid supplied to the cleaning liquid holding surface 30 from the cleaning liquid supply port 32 fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30, flows through the cleaning liquid holding surface 30 according to gravity, and cleans the nozzle surface 130, Ink adhering to the nozzle surface 130 is removed.
  • the cleaning liquid mixed with the ink removed from the nozzle surface 130 flows down from the vertically lower end of the cleaning liquid retaining surface 30 (here, the end on the +Y1 direction side) and onto the collection tray 20 (see FIG. 3). be recovered.
  • the length of the nozzle surface 130 in the Y1 direction is Lp
  • the length of the nozzle plate 132 in the Y1 direction is Ln
  • the cleaning liquid holding surface 30 is
  • the print head cleaning apparatus 10 configured in this way has the problem that the mixture of the ink and the cleaning liquid adheres and remains on the side surface of the inkjet head 117 on the lower side in the vertical direction (side surface 117A on the +Y1 direction side in FIG. 6). there were. Also, there is a problem that part of the mixture of the ink and the cleaning liquid remains on the side surface of the cleaning liquid deposition head 12 on the lower side in the vertical direction (side surface 34A on the +Y1 direction side in FIG. 6).
  • FIG. 7 is a side view of the print head cleaning device 40 according to the first embodiment, and is a schematic diagram showing how the nozzle surface 130 of the inkjet head 117 is cleaned.
  • the print head cleaning device 40 includes a cleaning liquid applying head 42 .
  • the cleaning liquid deposition head 12 and the cleaning liquid deposition head 42 differ only in the length of the cleaning liquid holding surface 30 in the Y1 direction, and the other configurations are the same.
  • the nozzle surface 130 and the cleaning liquid retaining surface 30 are arranged to face each other in parallel.
  • the entire Y1 direction of the cleaning liquid holding surface 30 is arranged to face the nozzle surface 130
  • the entire Y1 direction of the nozzle plate 132 is arranged to face the cleaning liquid holding surface 30 .
  • the print head cleaning device 40 has the following equation 2: satisfy the relationship Ln ⁇ Lc ⁇ Lp (Formula 2)
  • the cleaning liquid is supplied from the cleaning liquid supply port 32 to the cleaning liquid holding surface 30 in an amount equal to or larger than the amount that fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30 .
  • the cleaning liquid supplied to the cleaning liquid holding surface 30 from the cleaning liquid supply port 32 fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30, flows through the cleaning liquid holding surface 30 according to gravity, and cleans the nozzle surface 130, Ink adhering to the nozzle surface 130 is removed.
  • the cleaning liquid mixed with the ink removed from the nozzle surface 130 flows down from the vertically lower end of the cleaning liquid holding surface 30 and is collected in the collection tray 20 (see FIG. 3).
  • the length of the cleaning liquid holding surface 30 of the cleaning liquid deposition head 42 in the Y1 direction is configured so as not to reach the side surface 117A of the inkjet head 117, thereby preventing the mixture from adhering to the side surface 117A. can be prevented.
  • FIG. 8 is a side view of the print head cleaning device 50 according to the second embodiment, and is a schematic diagram showing how the nozzle surface 130 of the inkjet head 117 is cleaned.
  • the print head cleaning device 50 includes a cleaning liquid application head 52 .
  • the cleaning liquid deposition head 52 includes a cleaning liquid holding surface 30 and a cleaning liquid supply port 32 in the same manner as the cleaning liquid deposition head 42 . As shown in FIG. 8, they are arranged parallel to each other.
  • the entire Y1 direction of the cleaning liquid holding surface 30 is arranged to face the nozzle surface 130
  • the entire Y1 direction of the nozzle plate 132 is arranged to face the cleaning liquid holding surface 30 .
  • the print head cleaning device 50 has the relationship of Equation 2: meet.
  • the cleaning liquid applying head 52 has a side surface 54A that is continuous with the cleaning liquid holding surface 30, that is, the side surface 54A on the lower side in the vertical direction (the +Y1 direction side in FIG. 8) and the back surface 56 on the side opposite to the cleaning liquid holding surface 30. , provided.
  • the cleaning liquid applying head 52 has tapered ends, and the length of the back surface 56 in the Y1 direction is shorter than the length of the cleaning liquid holding surface 30 in the Y1 direction. That is, the angle ⁇ a formed between the cleaning liquid retaining surface 30 and the side surface 54A is an acute angle. Although it depends on the angle ⁇ , the angle ⁇ a is preferably 60 degrees or less, more preferably 45 degrees or less. Also, the angle ⁇ a is preferably 20 degrees or more, more preferably 30 degrees or more.
  • the cleaning liquid is supplied from the cleaning liquid supply port 32 to the cleaning liquid holding surface 30 in an amount equal to or larger than the amount that fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30 .
  • the cleaning liquid supplied to the cleaning liquid holding surface 30 from the cleaning liquid supply port 32 fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30, flows through the cleaning liquid holding surface 30 according to gravity, and cleans the nozzle surface 130, Ink adhering to the nozzle surface 130 is removed.
  • the cleaning liquid mixed with the ink removed from the nozzle surface 130 flows down from the vertically lower end of the cleaning liquid holding surface 30 and is collected in the collection tray 20 (see FIG. 3).
  • the end of the cleaning liquid applying head 52 is formed in a tapered shape, the mixture of the cleaning liquid and the ink easily flows downward in the vertical direction of the side surface 54A, and the mixture adheres to the side surface 54A. can be prevented.
  • a print head cleaning device according to the third embodiment will be described. Parts common to the print head cleaning device 50 are denoted by common reference numerals, and detailed description thereof is omitted.
  • FIG. 9 is a side view of the print head cleaning device 60 according to the third embodiment, and is a schematic diagram showing how the nozzle surface 130 of the inkjet head 117 is cleaned.
  • the print head cleaning device 60 includes a cleaning liquid applying head 62 .
  • the cleaning liquid deposition head 62 includes the cleaning liquid holding surface 30 in the same manner as the cleaning liquid deposition head 52 . Note that the cleaning liquid deposition head 62 does not have the cleaning liquid supply port 32 .
  • the nozzle surface 130 and the cleaning liquid holding surface 30 are arranged in parallel and face each other.
  • the entire Y1 direction of the cleaning liquid holding surface 30 is arranged to face the nozzle surface 130
  • the entire Y1 direction of the nozzle plate 132 is arranged to face the cleaning liquid holding surface 30 .
  • the print head cleaning device 60 has the following relationship: meet.
  • the cleaning liquid applying head 62 is tapered at the end, and the length of the back surface 56 in the Y1 direction is shorter than the length of the cleaning liquid holding surface 30 in the Y1 direction.
  • the cleaning liquid application head 62 has a side surface 54B on the upper side in the vertical direction (-Y1 direction side in FIG. 9), and the angle ⁇ b formed between the cleaning liquid holding surface 30 and the side surface 54B is an acute angle.
  • the angle ⁇ b is preferably 60 degrees or less, more preferably 45 degrees or less.
  • the angle ⁇ b is preferably 20 degrees or more, more preferably 30 degrees or more.
  • the print head cleaning device 60 also includes cleaning liquid supply nozzles 64 .
  • the cleaning liquid supply nozzle 64 is arranged on the vertically lower side (the +Y direction side in FIG. 9) of the cleaning liquid holding surface 30 and at a position facing the wing portion 134 while facing the inkjet head 117 .
  • the cleaning liquid supply nozzle 64 may be provided as a hole opening in the cleaning liquid holding surface 30 in the same manner as the cleaning liquid supply port 32 .
  • the cleaning liquid supply nozzle 64 ejects the cleaning liquid supplied from the cleaning liquid tank 14 by the supply pump 18 and supplies it to the cleaning liquid holding surface 30 .
  • the cleaning liquid supply nozzle 64 supplies an amount of cleaning liquid that is equal to or greater than the amount that fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30 .
  • the cleaning liquid supplied from the cleaning liquid supply nozzle 64 to the cleaning liquid holding surface 30 fills the space between the nozzle surface 130 and the cleaning liquid holding surface 30, and flows vertically upward against the gravity on the cleaning liquid holding surface. 30 to wash the nozzle surface 130 and remove the ink adhering to the nozzle surface 130 .
  • the flow velocity of the cleaning liquid here is slower than the flow velocity of the cleaning liquid flowing on the cleaning liquid holding surface 30 according to gravity in the first embodiment.
  • the cleaning liquid mixed with the ink removed from the nozzle surface 130 by cleaning flows down from the vertically upper end of the cleaning liquid holding surface 30 (here, the end on the -Y direction side) and is collected in the collection tray 20.
  • Part of the cleaning liquid supplied from the cleaning liquid supply nozzle 64 to the cleaning liquid holding surface 30 flows down from the vertically lower end of the cleaning liquid holding surface 30 and is collected in the collection tray 20 .
  • the print head cleaning device 60 covers the flow rate of the cleaning liquid that flows down between the nozzle surface 130 and the cleaning liquid holding surface 30 due to gravity with the momentum (flow rate) of the cleaning liquid flowing against the gravity, thereby removing the nozzle surface 130 and the cleaning liquid holding surface 30. To reduce the amount of cleaning liquid flowing down from between the cleaning liquid holding surface 30. - ⁇ Therefore, the amount of cleaning liquid used when cleaning for the same amount of time can be relatively reduced compared to the print head cleaning device 40 and the print head cleaning device 50 .
  • the end portion of the cleaning liquid deposition head 52 is formed in a tapered shape, the mixture of the cleaning liquid and the ink easily flows downward in the vertical direction of the side surfaces 54A and 54B. Adhesion of the mixture to 54A and side surface 54B can be prevented.
  • FIG. 10 is a side view showing a schematic configuration of an image recording unit of an inkjet recording apparatus that records an image on a sheet by a single pass method.
  • the image recording section 110 conveys a sheet 112 by means of an image recording drum 114 .
  • the image recording unit 110 distributes ink droplets of each color of C (cyan), M (magenta), Y (yellow), and K (black) around the image recording drum 114 in the course of conveyance by the image recording drum 114 .
  • a color image is recorded on the front surface of the sheet 112 by ejecting from the provided print bars 116C, 116M, 116Y, and 116K.
  • the image recording drum 114 has a rotating shaft 118, and both ends of the rotating shaft 118 are rotatably supported by a pair of bearings 122 (see FIG. 11).
  • a pair of bearings 122 are provided in a body frame 120 (see FIG. 11) of the inkjet recording apparatus.
  • the image recording drum 114 is mounted horizontally by supporting both ends of a rotating shaft 118 in a pair of bearings 122 in parallel with a horizontal installation surface.
  • a motor (not shown) is connected to the rotating shaft 118 via a rotation transmission mechanism (not shown).
  • the image recording drum 114 is rotated by being driven by a motor.
  • the image recording drum 114 has a gripper 124 that grips the leading edge of the sheet 112 .
  • the grippers 124 are provided at two locations on the outer peripheral surface of the image recording drum 114 .
  • the sheet 112 is held on the outer peripheral surface of the image recording drum 114 with its leading end gripped by the gripper 124 .
  • the image recording drum 114 has an adsorption holding mechanism (not shown) such as electrostatic adsorption or vacuum adsorption.
  • the sheet 112 whose leading end is gripped by the gripper 124 and wound around the outer peripheral surface of the image recording drum 114 is held on the outer peripheral surface of the image recording drum 114 by the suction holding mechanism sucking the back surface of the sheet 112 . be.
  • the sheet 112 before image recording is transferred from the conveying drum 126 to the image recording drum 114 .
  • the conveying drum 126 is arranged in parallel with the image recording drum 114, and delivers the sheet 112 to the image recording drum 114 in time.
  • the sheet 112 after image recording is transferred from the image recording drum 114 to the conveying drum 128 .
  • the conveying drum 128 is arranged in parallel with the image recording drum 114 and receives the sheets 112 from the image recording drum 114 in time.
  • the four print bars 116C, 116M, 116Y, and 116K are line heads corresponding to the length of the sheet 112 in the X direction.
  • the print bars 116C, 116M, 116Y, and 116K are applied to the print bars 116 shown in FIG. That is, print bars 116C, 116M, 116Y, and 116K each include a plurality of inkjet heads 117.
  • FIG. 1 The print bars 116C, 116M, 116Y, and 116K are line heads corresponding to the length of the sheet 112 in the X direction.
  • the print bars 116C, 116M, 116Y, and 116K are applied to the print bars 116 shown in FIG. That is, print bars 116C, 116M, 116Y, and 116K each include a plurality of inkjet heads 117.
  • the print bars 116C, 116M, 116Y, and 116K are mounted on a print bar support frame 140 and radially spaced concentrically about the rotation axis 118 of the image recording drum 114 and sandwiching the image recording drum 114. are arranged symmetrically. That is, the cyan print bar 116C and the black print bar 116K are arranged symmetrically with respect to a vertical line segment passing through the center of the image recording drum 114, and the magenta print bar 116M and the yellow print bar 116Y are arranged symmetrically. They are arranged symmetrically.
  • the print bars 116C, 116M, 116Y, and 116K have nozzle faces 130C, 130M, 130Y, and 130K of the inkjet heads 117, respectively, with nozzles 138 (see FIG. 2) arranged at the bottom.
  • the print bars 116C, 116M, 116Y, and 116K are perpendicular to the Y direction, which is the conveying direction of the sheet 112, and the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 are aligned with the image recording drum 114.
  • the print bars 116C, 116M, 116Y, and 116K are arranged with the same distance between the outer peripheral surface of the image recording drum 114 and the nozzle surfaces 130C, 130M, 130Y, and 130K of the ink jet heads 117, respectively.
  • the print bars 116C, 116M, 116Y, and 116K eject ink droplets vertically toward the outer peripheral surface of the image recording drum 114 from nozzles 138 arranged on the nozzle surfaces 130C, 130M, 130Y, and 130K of the respective inkjet heads 117. do.
  • FIG. 11 is a front view showing a schematic configuration of an image recording section of an inkjet recording apparatus.
  • a print bar support frame 140 to which the print bars 116C, 116M, 116Y, and 116K are attached includes a pair of side plates 142L and 142R provided orthogonal to the rotation axis 118 of the image recording drum 114, a pair of side plates 142L and 142R and a connecting frame 144 that connects 142R at the upper end.
  • the pair of side plates 142L and 142R have a plate shape and are arranged to face each other with the image recording drum 114 interposed therebetween.
  • Mounting portions 146C, 146M, 146Y and 146K for mounting print bars 116C, 116M, 116Y and 116K are provided inside the pair of side plates 142L and 142R. Note that FIG. 11 shows only the mounting portion 146Y for the sake of convenience.
  • the mounting portions 146C, 146M, 146Y, and 146K are radially arranged on a concentric circle around the rotating shaft 118 of the image recording drum 114 at regular intervals.
  • the print bars 116C, 116M, 116Y, and 116K have attached portions 148C, 148M, 148Y, and 148K (only the attached portion 148Y is shown for convenience in FIG. 11) provided at both ends. and 146K to the printbar support frame 140 .
  • the print bar support frame 140 is guided by a guide rail (not shown) so as to be slidable parallel to the rotating shaft 118 of the image recording drum 114 .
  • the print bar support frame 140 is driven by a linear drive mechanism (for example, a feed screw mechanism) (not shown) to move between an "image recording position" indicated by a solid line in FIG. 11 and a "maintenance position" indicated by a broken line in FIG. move at a predetermined speed.
  • a linear drive mechanism for example, a feed screw mechanism
  • the print bars 116C, 116M, 116Y, and 116K are placed around the image recording drum 114 and ready for image recording when the print bar support frame 140 is positioned at the image recording position.
  • the maintenance position is set at a position where the print bars 116C, 116M, 116Y, and 116K are retracted from the image recording drum 114.
  • a moisturizing unit 150 is provided for moisturizing the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K.
  • the moisturizing unit 150 includes caps 152C, 152M, 152Y, and 152K (caps 152C, 152M, 152Y, and 152K for convenience in FIG. 152Y is shown).
  • caps 152C, 152M, 152Y, and 152K for convenience in FIG. 152Y is shown.
  • nozzle faces 130C, 130M, 130Y and 130K are covered by caps 152C, 152M, 152Y and 152K. This can prevent non-ejection due to drying of the nozzles 138 .
  • the caps 152C, 152M, 152Y, and 152K are equipped with a pressure mechanism and a suction mechanism (not shown), and can pressurize and suck the nozzle 138. Also, the caps 152C, 152M, 152Y, and 152K have a cleaning liquid supply mechanism (not shown), and can supply cleaning liquid to the inside.
  • a waste liquid tray 154 is arranged below the caps 152C, 152M, 152Y, and 152K.
  • the cleaning liquid supplied to the caps 152C, 152M, 152Y, and 152K is discarded in the waste liquid tray 154 and recovered in the waste liquid tank 158 via the waste liquid recovery pipe 156.
  • FIG. 1 A waste liquid tray 154 is arranged below the caps 152C, 152M, 152Y, and 152K.
  • a nozzle surface cleaning device 160 for cleaning the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K is provided between the image recording position and the maintenance position. be done.
  • the nozzle surface cleaning device 160 includes a cleaning liquid applying unit 162 that applies cleaning liquid to the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K to clean them. and a wiping portion 164 for wiping the nozzle surfaces 130C, 130M, 130Y, and 130K.
  • the cleaning liquid application unit 162 applies cleaning liquid to the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K.
  • the wiping part 164 (an example of a 'wiping device') wipes the nozzle surfaces 130C, 130M, 130Y, and 130K to which the cleaning liquid is applied with a band-shaped wiping web (an example of a 'wiping member') (not shown).
  • the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 are cleaned by the nozzle surface cleaning device 160 by moving the print bars 116C, 116M, 116Y, and 116K between the maintenance position and the image recording position. be done.
  • the wiping section 164 is arranged on the image recording position side with respect to the cleaning liquid applying section 162 , but may be arranged on the maintenance position side with respect to the cleaning liquid applying section 162 .
  • FIG. 12 is a side view of the cleaning liquid applying unit 162 as seen from the maintenance position side.
  • the cleaning liquid application unit 162 is installed inside a waste liquid tray 154 provided in the moisturizing unit 150 (see FIG. 11).
  • the cleaning liquid deposition section 162 includes cleaning liquid deposition units 170C, 170M, 170Y, and 170K provided corresponding to the print bars 116C, 116M, 116Y, and 116K, respectively, and cleaning liquid deposition units 170C, 170M, 170Y, and 170K.
  • a main body 172 which is configured to be a
  • the main body 172 is installed horizontally and can be moved up and down by a lifting device (not shown).
  • the main body 172 has cleaning liquid application unit attachment portions 172C, 172M, 172Y, and 172K on its upper surface.
  • the cleaning liquid deposition units 170C, 170M, 170Y, and 170K are fixed by bolts or the like to cleaning liquid deposition unit mounting portions 172C, 172M, 172Y, and 172K provided on the main body 172, and are attached to the corresponding print bars 116C, 116M, and 116Y, respectively. , and 116K.
  • a print head cleaning device 40, a print head cleaning device 50, or a print head cleaning device 60 is applied to the cleaning liquid application units 170C, 170M, 170Y, and 170K, respectively. That is, each of the cleaning liquid deposition units 170C, 170M, 170Y, and 170K includes a cleaning liquid holding surface 30 and a cleaning liquid supply port 32. As shown in FIG.
  • the cleaning liquid holding surfaces 30 of the cleaning liquid application units 170C, 170M, 170Y, and 170K have the same inclination angles as the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K. have. This angle of inclination corresponds to the angle ⁇ described above.
  • FIG. 13 is a block diagram showing the electrical configuration of the image recording section 110.
  • the image recording unit 110 includes a movement control unit 200 , a transport control unit 202 , an image recording control unit 206 , a moisturizing unit control unit 208 , a cleaning liquid control unit 210 , a wiping control unit 212 , and a back pressure control unit 214 .
  • a movement control unit 200 includes a transport control unit 202 , an image recording control unit 206 , a moisturizing unit control unit 208 , a cleaning liquid control unit 210 , a wiping control unit 212 , and a back pressure control unit 214 .
  • the movement control unit 200 controls movement (an example of "relative movement") of the print bars 116C, 116M, 116Y, and 116K.
  • the movement control unit 200 drives a linear drive mechanism (not shown) to move the print bars 116C, 116M, 116Y, and 116K supported by the print bar support frame 140 between the image recording position and the maintenance position (see FIG. 11). move between.
  • the transport control unit 202 controls transport of the sheets 112 .
  • the transport controller 202 controls the gripper 124 (see FIG. 10) to grip the leading edge of the sheet 112 . Further, the transport control unit 202 controls an adsorption holding mechanism (not shown) to hold the sheet 112 on the outer peripheral surface of the image recording drum 114 . Further, the transport control unit 202 drives a motor (not shown) to rotate the image recording drum 114 so that the sheet 112 is held and transported by the image recording drum 114 .
  • the transport control unit 202 also drives the transport drum 126 and the transport drum 128 (see FIG. 10) to transfer the sheet 112 from the transport drum 126 to the image recording drum 114 and from the image recording drum 114 to the transport drum 128. be transported.
  • the image recording control unit 206 controls the print bars 116C, 116M, 116Y, and 116K.
  • the image recording control unit 206 ejects ink droplets from the nozzles 138 of the ink jet heads 117 of the print bars 116C, 116M, 116Y, and 116K to print color images on the surface of the sheet 112 conveyed by the image recording drum 114. Record an image.
  • the moisturizing unit controller 208 controls the moisturizing unit 150 to moisturize the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K.
  • the moisturizing unit controller 208 controls a pressure mechanism and a suction mechanism (not shown) to increase the nozzles 138 of the inkjet heads 117 from the caps 152C, 152M, 152Y, and 152K to the print bars 116C, 116M, 116Y, and 116K. Apply pressure and suction.
  • the moisturizing unit controller 208 controls a cleaning liquid supply mechanism (not shown) to supply cleaning liquid to the insides of the caps 152C, 152M, 152Y, and 152K.
  • the cleaning liquid control unit 210 controls the cleaning liquid application unit 162 to apply the cleaning liquid to the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K.
  • the cleaning liquid control unit 210 raises the main body 172 (see FIG. 12) by a predetermined amount from the standby position and moves it to the operating position. Further, the cleaning liquid control section 210 drives the supply pumps 18 of the cleaning liquid deposition units 170C, 170M, 170Y, and 170K, respectively, to eject the cleaning liquid from the cleaning liquid supply ports 32 (see FIG. 4).
  • the wiping control unit 212 controls the wiping unit 164 to wipe the nozzle surfaces 130C, 130M, 130Y, and 130K of the inkjet heads 117 of the print bars 116C, 116M, 116Y, and 116K with the wiping web.

Landscapes

  • Ink Jet (AREA)
PCT/JP2022/039848 2021-12-15 2022-10-26 印刷装置 Ceased WO2023112498A1 (ja)

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JP2023567584A JPWO2023112498A1 (https=) 2021-12-15 2022-10-26
EP22907032.1A EP4450288A4 (en) 2021-12-15 2022-10-26 PRINTING DEVICE
US18/736,501 US20240316937A1 (en) 2021-12-15 2024-06-06 Printing device

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JP2021203150 2021-12-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080278536A1 (en) * 2007-05-09 2008-11-13 Samsung Electronics Co., Ltd Inkjet image-forming apparatus and method thereof
JP2014195934A (ja) * 2013-03-29 2014-10-16 セイコーエプソン株式会社 インクジェット記録装置
JP2019171797A (ja) * 2018-03-29 2019-10-10 富士フイルム株式会社 洗浄方法、これに用いる洗浄部材、洗浄ユニットおよび洗浄システム
JP6656929B2 (ja) 2016-01-04 2020-03-04 東レエンジニアリング株式会社 インクジェットヘッドのメンテナンス装置およびインクジェットヘッドのメンテナンス方法
WO2020095822A1 (ja) * 2018-11-08 2020-05-14 富士フイルム株式会社 記録ヘッド洗浄装置、記録ヘッド洗浄方法、及び記録装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5280887B2 (ja) * 2009-02-25 2013-09-04 富士フイルム株式会社 ヘッド洗浄装置及び画像記録装置並びにヘッド洗浄方法
JP2010221566A (ja) * 2009-03-24 2010-10-07 Fujifilm Corp ヘッド洗浄装置及び画像記録装置並びにヘッド洗浄方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080278536A1 (en) * 2007-05-09 2008-11-13 Samsung Electronics Co., Ltd Inkjet image-forming apparatus and method thereof
JP2014195934A (ja) * 2013-03-29 2014-10-16 セイコーエプソン株式会社 インクジェット記録装置
JP6142991B2 (ja) 2013-03-29 2017-06-07 セイコーエプソン株式会社 インクジェット記録装置
JP6656929B2 (ja) 2016-01-04 2020-03-04 東レエンジニアリング株式会社 インクジェットヘッドのメンテナンス装置およびインクジェットヘッドのメンテナンス方法
JP2019171797A (ja) * 2018-03-29 2019-10-10 富士フイルム株式会社 洗浄方法、これに用いる洗浄部材、洗浄ユニットおよび洗浄システム
WO2020095822A1 (ja) * 2018-11-08 2020-05-14 富士フイルム株式会社 記録ヘッド洗浄装置、記録ヘッド洗浄方法、及び記録装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4450288A4

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EP4450288A4 (en) 2025-04-16
EP4450288A1 (en) 2024-10-23
US20240316937A1 (en) 2024-09-26

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