WO2012073907A1 - Dispositif de transport de milieu d'enregistrement et dispositif d'enregistrement d'image - Google Patents

Dispositif de transport de milieu d'enregistrement et dispositif d'enregistrement d'image Download PDF

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Publication number
WO2012073907A1
WO2012073907A1 PCT/JP2011/077430 JP2011077430W WO2012073907A1 WO 2012073907 A1 WO2012073907 A1 WO 2012073907A1 JP 2011077430 W JP2011077430 W JP 2011077430W WO 2012073907 A1 WO2012073907 A1 WO 2012073907A1
Authority
WO
WIPO (PCT)
Prior art keywords
endless belt
cleaning
roller
recording medium
water absorbing
Prior art date
Application number
PCT/JP2011/077430
Other languages
English (en)
Japanese (ja)
Inventor
靖志 新関
木本　裕也
Original Assignee
コニカミノルタＩｊ株式会社
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 コニカミノルタＩｊ株式会社 filed Critical コニカミノルタＩｊ株式会社
Priority to JP2012546867A priority Critical patent/JP5817736B2/ja
Publication of WO2012073907A1 publication Critical patent/WO2012073907A1/fr

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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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/007—Conveyor belts or like feeding devices
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/18—Mechanisms for rendering the print visible to the operator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/06—Office-type machines, e.g. photocopiers

Definitions

  • the present invention relates to a recording medium conveying apparatus and an image recording apparatus, and more particularly to a recording medium conveying apparatus and an image recording apparatus that convey a recording medium in close contact with the surface of an endless belt coated with an adhesive.
  • an image recording apparatus using an ink jet method has been widely used.
  • the recording medium is a stretchable fabric or the like
  • the recording medium is conveyed below the recording head by an endless belt.
  • the ink ejected from the recording head may adhere to the endless belt due to misfeed of the recording medium, so-called borderless printing, ink back-through, etc., and the ink attached to the endless belt may adhere to the endless belt. Therefore, troubles such as transfer to a newly supplied recording medium and contamination of the recording medium occur.
  • an image recording apparatus having such an endless belt is provided with a cleaning device for cleaning the surface of the endless belt.
  • Patent Document 1 after the recording medium is peeled off from the endless belt, the cleaning liquid is attached to the endless belt by contacting the endless belt while rotating a brush roller partially immersed in the cleaning liquid.
  • a technique for cleaning and further cleaning by absorbing and removing ink or cleaning liquid adhering to the endless belt by bringing a wiper blade and an absorption roller into contact with each other on the downstream side in the moving direction of the endless belt is disclosed.
  • an image recording apparatus printing apparatus
  • a fabric as a recording medium
  • the surface of the endless belt that transports the fabric is uniformly coated with the adhesive, and the fabric is stuck on it to keep the fabric surface free from wrinkles during transport and recording.
  • the fabric is stuck on it to keep the fabric surface free from wrinkles during transport and recording.
  • the adhesive is a pressure-sensitive adhesive made of a liquid having a paste-like viscosity, and functions as an adhesive that is applied to the surface of an endless belt to form a film, thereby sticking the fabric by viscosity.
  • the fabric can be transported in a state free from wrinkles by spreading the fabric on and in close contact with the surface of the endless belt on which the adhesive is applied in the form of a film.
  • adhesives such as acrylic and silicon
  • these adhesives are formulated (single or mixed in a predetermined ratio) and used to adhere to various recording media. It is possible to optimize the printability and optimize the water repellency for various inks, thereby improving the print image quality and workability.
  • the adhesive has a difference in properties such as tackiness and water repellency depending on the formulation, the following problems have occurred in relation to the properties of the cleaning means.
  • cleaning means such as blades and water absorption rollers are used in close contact with the surface of the endless belt so that the cleaning liquid can be efficiently wiped off. come. For this reason, the load applied to the drive motor of the drive roller that transports the endless belt is different, and the recording medium conveyance accuracy may become unstable. If the conveyance accuracy of the recording medium becomes unstable, the landing position of the ink ejected from the recording head may be shifted, and the image may be deteriorated.
  • the cleaning liquid could not be sufficiently wiped off by the blade and the water absorption roller, and the remaining cleaning liquid sometimes remained on the endless belt surface.
  • the cleaning liquid adheres to the recording medium and contaminates the recording medium or blurs the printed image.
  • the object of the present invention is to maintain the recording medium conveyance accuracy by enabling the optimum cleaning according to the characteristics of the adhesive applied to the endless belt, and further to wipe the cleaning liquid. It is an object of the present invention to provide a recording medium transport apparatus and an image recording apparatus that can prevent the remaining occurrence.
  • An endless belt that transports a recording medium in close contact with a surface coated with an adhesive, a cleaning unit that contacts the surface of the endless belt and cleans the endless belt surface, and a surface of the endless belt by the cleaning unit And a cleaning condition changing means for changing a cleaning condition for the recording medium.
  • the cleaning means is a rotatable cleaning roller
  • the cleaning condition changing means is for changing the driving rotation or driven rotation of the cleaning roller, changing the rotation direction, and changing the linear speed of the surface of the cleaning roller. Including at least one of them.
  • the cleaning roller is a water absorbing roller having a water absorbing member on the surface thereof.
  • the recording medium conveying apparatus according to the description.
  • a squeezing roller configured to squeeze out the cleaning liquid absorbed by the water absorbing member by pressing the water absorbing member so that the presence or absence of contact with the water absorbing roller and / or the amount of pushing can be changed.
  • the cleaning means is a blade that contacts the surface of the endless belt and rubs by conveying the endless belt.
  • the recording medium conveying apparatus according to the description.
  • a backup member that supports the endless belt from the back side with respect to contact of the cleaning means with the surface of the endless belt is provided, and the backup member is positioned along the moving direction of the endless belt and / or perpendicular to the moving direction.
  • the above-described 1. is characterized in that the position along the various directions can be changed.
  • ⁇ 5. The recording medium transport device according to any one of the above.
  • the recording medium conveyance device and the image recording apparatus of the present invention it becomes possible to perform optimum cleaning according to the characteristics of the adhesive applied to the endless belt, and the conveyance accuracy of the recording medium can be maintained. Furthermore, it is possible to prevent the remaining cleaning liquid from being wiped off. As a result, the print image quality and workability can be improved.
  • FIG. 1 Schematic side view showing an example of the image recording apparatus of the present invention
  • Main part enlarged side view for explaining backup member fixing means and backup member position changing means The figure which shows an example of the state which changed the fixed position of the backup member
  • the figure which shows the other example of the state which changed the fixed position of the backup member The principal part expansion side view explaining the other aspect of the cleaning means
  • the principal part expansion side view explaining the other aspect of the cleaning means The principal part enlarged side view which shows an example of the recording medium conveying apparatus provided with two aperture rollers
  • FIG. 1 is a schematic side view showing an example of an image recording apparatus according to the present invention.
  • reference numeral 1 denotes an image recording apparatus, which includes a recording medium conveying apparatus 2, a recording head 3, and a cleaning apparatus 4.
  • a plurality of (two in the illustrated example) rollers 21 and 22 are arranged at a predetermined interval, and an endless belt 23 having a predetermined width is provided across the plurality of rollers 21 and 22. It is stretched.
  • the endless belt 23 the upper surface of the portion spanned between the rollers 21 and 22 is used as a recording medium mounting surface.
  • One roller 21 is connected to the sub-scanning motor 21a, and is a driving roller that rotates at a predetermined speed counterclockwise in FIG. 1 during printing by rotation driving of the sub-scanning motor 21a, and the other roller 22 is driven. Laura.
  • the endless belt 23 is rotationally moved by driving of the driving roller 21 and conveys the recording medium P that is in close contact with the upper surface in the V direction that is the sub-scanning direction indicated by the arrow.
  • the recording medium P for example, a recording medium usually used for ink jet recording such as paper, fabric, plastic film, glass plate, or the like can be used.
  • the recording medium P may be in the form of a sheet cut into a predetermined size, or may be in the form of a long sheet that is continuously fed out from the original winding wound in a roll shape.
  • the fabric is preferable because the ink can easily pass through the ink, so that the ink is likely to adhere to the surface of the endless belt 23, and a particularly remarkable effect can be obtained by providing the cleaning device 4 described later.
  • the recording head 3 is disposed above the surface on which the recording medium P on the endless belt 23 is placed at a predetermined interval, and ink is supplied from a number of nozzles (not shown) provided on the lower surface thereof.
  • This is an inkjet head that records a desired image on a recording medium P that is intermittently conveyed by discharging droplets.
  • the recording head 3 may be a shuttle type recording head that is mounted on a carriage (not shown) and reciprocates in the main scanning direction orthogonal to the conveyance direction of the recording medium P during image recording. It may be a line-type recording head that records an image by ejecting ink droplets onto a recording medium P that is fixedly stretched in the direction and continuously conveyed.
  • the endless belt 23 intermittently conveys the recording medium P by a predetermined amount, and in the case of the line type recording head 3, the endless belt 23 continuously conveys the recording medium P at a constant speed. To do.
  • the surface of the endless belt 23 is coated with a base material, and the recording medium P is brought into close contact with the surface of the endless belt 23 by the adhesive force of the base material.
  • the kind of the upholstery agent is not particularly limited, and rubber-based, acrylic-based, silicon-based and the like mainly composed of natural rubber or synthetic rubber can be preferably exemplified.
  • the adhesive can also be used alone or in combination.
  • the cleaning device 4 is provided in the recording medium transport device 2 and includes a watering pipe 41, a brush roller 42, and a water absorption roller 43 in order from the upstream side in the moving direction of the endless belt 23.
  • the water sprinkling pipe 41 cleans foreign matter adhering to the surface of the endless belt 23 by spraying a cleaning liquid from the water spout 41a over the width direction of the endless belt 23 having a predetermined width.
  • the brush roller 42 is formed in a roller shape with brush hairs 42b planted around a shaft 42a.
  • the length of the shaft 42a is formed to be the same as or slightly longer than the width of the endless belt 23, and is stretched across the width direction of the endless belt 23.
  • the tip of the brush bristles 42b is a watering position by the watering pipe 41.
  • the endless belt 23 is always in contact with the surface of the endless belt 23 on the downstream side in the moving direction.
  • the material of the brush bristles 42b is not particularly limited, and polypropylene, nylon and the like can be preferably exemplified.
  • the brush roller 42 is rotatable about a shaft 42a.
  • the shaft 42a is connected to the motor 42c.
  • the motor 42c can change the number of rotations of the brush roller 42.
  • the motor 42c can change the number of rotations, so that the linear velocity on the surface of the brush roller 42 can be changed.
  • the linear velocity on the surface of the brush roller 42 is the linear velocity at the tip of the brush hair 42b planted on the shaft 42a.
  • the diameter of the brush roller 42 (the diameter up to the tip of the brush bristles 42b) is 100 mm and the reduction ratio of the brush roller 42 to the motor 42c is 1/26, the linear velocity on the surface of the brush roller 42 is 120.
  • a first water receiving portion 44 in which cleaning liquid is stored is disposed, and the tip of the brush bristles 42b is equal to the cleaning liquid stored in the first water receiving portion 44.
  • the part is immersed. For this reason, when the brush roller 42 rotates, the cleaning liquid is scooped up from the first water receiving portion 44 by the brush bristles 42b, and the surface of the endless belt 23 is washed with the cleaning liquid.
  • the first water receiving portion 44 is formed below the watering position of the watering pipe 41 and accommodates the cleaning liquid sprayed from the watering pipe 41. Further, the cleaning liquid stored in the first water receiving portion 44 is supplied to the sprinkling pipe 41 by the pump 41b.
  • the water absorbing roller 43 is disposed in a state of being in close contact with the surface of the endless belt 23 on the downstream side of the brush roller 42 in the moving direction of the endless belt 23, and the endless belt 23 is operated by the upstream water spray pipe 41 and the brush roller 42.
  • the cleaning liquid adhering to the surface of the belt is wiped off and removed from the surface of the endless belt 23.
  • the water absorbing roller 43 has a porous water absorbing member 43b around the shaft 43a and is formed in a roller shape.
  • the length of the shaft 43 a is the same as or slightly longer than the width of the endless belt 23, and is stretched across the width direction of the endless belt 23.
  • the porous water absorbing member 43 b is more endless than the brush roller 42.
  • the belt 23 is always in close contact with the surface of the endless belt 23 on the downstream side in the moving direction of the belt 23.
  • the material of the absorbent body 43b is preferably formed of a flexible porous absorbent body. Specifically, a polyurethane foam or the like can be preferably used.
  • the water absorption roller 43 is rotatable around a shaft 43a.
  • the shaft 43a is rotationally driven by a motor 43c that can rotate forward and backward.
  • 43d is a squeezing roller, which is attached so as to bite into the flexible water absorbing member 43b, and squeezes out the water absorbed by the water absorbing member 43b.
  • the squeezing roller 43d moves in a direction (in the direction of arrow A in the figure) in which the squeezing roller 43d is in contact with or separated from the central direction of the water absorbing roller 43 so that the presence / absence of contact with the water absorbing roller 43 and / or the push amount can be changed. It is provided as possible.
  • 43g is an actuator for moving the water absorption roller in the direction of arrow A.
  • a second water receiving portion 45 is disposed so as to accommodate water droplets squeezed and dropped from the water absorption member 43b by the squeezing roller 43d.
  • the motor 43c can be switched between driving and non-driving.
  • driving the water-absorbing roller 43 is rotated by the power from the motor 43c.
  • non-driving the water-absorbing roller 43 does not rotate by itself but rotates following the conveyance of the endless belt 23.
  • the motor 43c can change the rotation speed of the water absorption roller 43 during forward rotation or reverse rotation during driving.
  • the linear velocity on the surface of the water absorption roller 43 can be changed.
  • the linear velocity on the surface of the water absorbing roller 43 is the linear velocity on the surface of the water absorbing member 43b provided around the shaft 43a.
  • the diameter of the water absorption roller 43 (the diameter to the surface of the water absorption member 43b) is 80 mm and the reduction ratio of the water absorption roller 43 to the motor 43c is 1/123, the linear velocity on the surface of the water absorption roller 43 is 68.
  • the driving or non-driving of the motor 43c, the rotation direction, and the linear velocity of the surface of the water absorbing roller 43 can be changed, so that the contact state of the water absorbing roller 43 with the surface of the endless belt 23 is changed. 23 cleaning conditions can be changed.
  • a plurality of backup members 46 for supporting the endless belt 23 from the back surface side against the contact of the water absorption roller 43 are provided on the back surface side of the endless belt 23 to which the water absorption roller 43 contacts.
  • the backup members 46 are each made of a stay member formed to be the same as or slightly longer than the width of the endless belt 23, and a plurality of the backup members 46 are stretched across the width direction on the back side of the endless belt 23.
  • both ends of the backup member 46 are supported by a pair of fixing holes (fixing means) provided in two side plates that are opposed to each other so as to sandwich the entire width of the endless belt 23. By doing so, it is fixed at a predetermined position.
  • the pair of fixing holes are provided in a plurality along the moving direction of the endless belt 23. By selecting one of the fixing holes and fixing the backup member 46, the endless belt of the backup member 46 is fixed. The fixed position along the moving direction of 23 can be changed.
  • the contact state of the water absorbing roller 43 with the endless belt 23 can be changed, and the cleaning condition by the water absorbing roller 43 with respect to the surface of the endless belt 23 can be changed.
  • the change of the fixed position of the backup member 46 is performed by an operator, but each fixed position is provided with a display means (not shown) for performing display by lighting, for example, an LED lamp.
  • the display means corresponding to the optimum fixing position is turned on, for example, the operator can be instructed to the optimum position where the backup member 46 should be fixed.
  • the display means can display the fixed height position of the backup member 46 at each fixed position and can instruct the operator.
  • the change of the linear speed on the surface of the brush roller 42, the driving or non-drive of the motor 43c for rotating the water absorption roller 43, the rotation direction, the change of the linear speed on the surface of the water absorption roller 43, and the backup By changing the fixing position of the member 46, the cleaning conditions of the brush roller 42 and the water absorbing roller 43 with respect to the surface of the endless belt 23 can be changed.
  • the cleaning condition of the endless belt 23 by the brush roller 42 and the water absorbing roller 43 is changed according to the characteristics of the surface covering agent.
  • the applied adhesive is highly adhesive
  • the water absorbing roller 43 is driven, it adheres due to the adhesive of the adhesive, and the normal driven rotation is hindered, and the endless belt 23
  • the water absorption roller 43 is positively driven to rotate positively at a predetermined linear speed, the resistance against the rotational movement of the endless belt 23 is reduced, and the close contact with the adhesive is suppressed.
  • the brush roller 42 if there is a possibility that the adhesive may be damaged depending on the linear velocity during reverse rotation driving, the linear velocity of the brush roller 42 should be lowered to suppress the adhesive damage. Change the condition.
  • the contact state (contact pressure, contact area) of the water absorbing roller 43 with respect to the endless belt 23 varies depending on the presence / absence of the backup member 46 and its position, the position of the backup member 46 along the moving direction of the endless belt 23 and By changing the height position from the back surface of the endless belt 23 (position along the direction perpendicular to the moving direction of the endless belt 23) as appropriate according to the properties of the adhesive, the cleaning conditions are changed, and the endless belt 23 Suppresses transport failures (load increase)
  • FIG. 2 is a block diagram illustrating an example of a control configuration for changing and controlling the cleaning condition of the endless belt 23.
  • 5 is an interface for inputting the adhesive agent information
  • 6 is a control unit that acquires the adhesive agent information from the interface and determines the cleaning condition of the endless belt 23 according to the adhesive agent information. is there.
  • the control unit 6 displays instructions for the motor 42c for driving the brush roller 42, the motor 43c for driving the water absorption roller 43, the actuator 43g for moving the squeezing roller 43d, and the fixed position and fixed height position of the backup member 46.
  • Control signals (including lighting signals) can be transmitted to the LED lamps 7a, 7b, 7c, and 7d that are display means.
  • the adhesive agent information is information related to the properties of the adhesive agent, for example, information on the type of adhesive agent, information on the manufacturer of the adhesive agent, and when using a mixture of different types of adhesive agents It is preferable to include information on the blend ratio.
  • Entry of adhesive agent information by the interface 5 can be performed by an input operation of switches using a dedicated operation terminal in addition to a PC keyboard and a touch panel.
  • a corresponding adhesive can be selected from a list of adhesives displayed on the monitor.
  • the operator can appropriately input the respective compounding ratios.
  • the information on the properties of the upholstery is obtained by measuring the physical properties of the upholstery applied to the endless belt 23 by measurement means (not shown) and acquiring the obtained measured values as the upholstery information. May be.
  • the measured physical properties are preferably tackiness, water repellency and the like. Since the properties of the adhesive applied to the endless belt 23 are likely to change depending on the usage conditions, in the present invention, the physical properties of the adhesive on the surface of the endless belt 23 are measured periodically or continuously by the measuring means. It is also preferable to reflect this in the control.
  • the control mechanism preferably includes a memory 8.
  • the memory 8 stores data on preferable cleaning conditions corresponding to the adhesive information.
  • FIG. 3 shows an example of a table that defines the cleaning conditions corresponding to the adhesive agent information accumulated in the memory 8.
  • the control unit 6 can determine the cleaning condition by referring to the table stored in the memory 8 according to the adhesive agent information from the interface 5 and controlling the motor 43c that drives the water absorption roller 43.
  • the data stored in the memory 8 is configured to be updated at any time.
  • an image sensor such as a CCD that detects the remaining state of the cleaning liquid on the surface of the endless belt 23, or a rotary that detects the conveyance state of the endless belt 23, for example.
  • the control unit 6 changes the cleaning conditions in various ways to search for a cleaning condition that prevents the remaining cleaning liquid and increases the conveyance accuracy.
  • the cleaning condition is stored in the memory 8 as new data together with the adhesive agent information.
  • the detection unit 9 further includes a sensor that prints a test print pattern on the surface of the recording medium P or the endless belt 23 and detects a shift, blur, or contamination state of the print pattern when searching for the cleaning condition. It is also preferable. This is because the printing pattern deviation, bleeding or contamination state strongly reflects the conveyance accuracy of the endless belt 23 and the remaining state of the cleaning liquid.
  • the cleaning condition of the cleaning means is changed according to the properties of the adhesive applied to the endless belt 23, so that the endless belt can be used under the optimum cleaning conditions according to the adhesive. 23 surfaces can be cleaned. For this reason, the conveyance accuracy of the recording medium P can be maintained, and further, it is possible to prevent the occurrence of remaining cleaning liquid wiping.
  • this makes it possible to optimize the adhesion to various recording media P without considering the characteristics of the cleaning means, and to select the prescription of the adhesive so as to optimize the water repellency for various inks. As a result, the print image quality and workability can be improved.
  • FIG. 4 is an enlarged side view of a main part for explaining the fixing structure of the backup member 46.
  • 11 is one side plate provided in the image recording apparatus 1 or the recording medium transport apparatus 2.
  • four fixing holes 47 a, 47 b, 47 c, and 47 d formed in a long hole shape perpendicular to the direction in which the endless belt 23 is stretched are aligned in the direction in which the endless belt 23 is stretched. It is installed.
  • Each of the fixing holes 47a to 47d has the same size and length.
  • the other side plate (not shown) installed across the endless belt 23 has four fixing holes (not shown) which are paired with four fixing holes 47a, 47b, 47c and 47d. It is provided at a position that is symmetric with respect to each other.
  • the fixing holes 47a to 47d are provided with display lamps 7a to 7d, respectively, which are not shown here.
  • These fixing holes 47a to 47d constitute fixing means for fixing the backup member 46. That is, the backup member 46 is inserted into the fixing hole 47 a located on the most upstream side in the transport direction of the endless belt 23 and is stretched across the width direction of the endless belt 23.
  • the backup member 46 is fixed in a horizontal position by being inserted into the fixing hole 47a. Further, the backup member 46 is fixed at a position in the vertical direction with respect to the endless belt 23 by spacers S, S respectively inserted above and below the fixing hole 47a. As a result, the backup member 46 inserted into the fixing hole 47a is fixed away from the back surface of the endless belt 23 by the width (height) of one spacer S from the lower end.
  • the fixed height position of the backup member 46 by the spacer S is indicated to the operator by, for example, three types of display lamps 7a to 7d (not shown) of the upper, middle, and lower stages, and one of the stages lights up.
  • the backup member 46 is similarly fixed to the fixing hole 47c on the downstream side in the moving direction of the endless belt 23, one from the fixing hole 47a.
  • the two spacers S and S are both inserted above the backup member 46, and the backup member 46 is positioned and fixed at the lower end of the fixing hole 47c.
  • the backup member 46 is also fixed to the fixing hole 47d on the downstream side in the moving direction of the endless belt 23.
  • the two spacers S and S are both inserted below the backup member 46, and the backup member 46 is positioned and fixed at the upper end of the fixing hole 47d.
  • the backup member 46 Since the backup member 46 does not exist in the fixing hole 47b directly above the shaft 43a of the water absorbing roller 43, the back surface of the endless belt 23 is supported by the backup members 46 and 46 of the fixing holes 47a and 47c, and the water absorbing roller therebetween. 43 abutment is received. For this reason, according to the fixing position of the backup members 46 and 46 fixed to the fixing holes 47a and 47c, the endless belt 23 is shown when the water absorbing roller 43 comes into contact. Furthermore, it escapes from the water absorption roller 43 between the two backup members 46, 46 according to the fixed height position of each backup member 46, 46 and the arc corresponding to the outer periphery of the water absorption roller 43 between the two backup members 46, 46. The contact state with the water absorption roller 43 is adjusted so as to have a shape.
  • FIG. 5 shows a state where the fixed position of the backup member 46 is changed to another position.
  • the fixing holes 47a, 47c, 47d to which the backup member 46 is fixed are the same as in the example of FIG. 4, but the fixing height positions are partially different.
  • the two spacers S, S are inserted above and below the backup member 46 so that the backup member 46 is fixed to the position of one spacer S with respect to the state shown in FIG. It is changed upward by the width (height).
  • the two spacers S and S are both inserted above the backup member 46, and the fixing position of the backup member 46 is changed to the lowest position.
  • FIG. 6 shows a state where the fixed position of the backup member 46 is further changed to another position.
  • the backup member 46 is fixed only to the fixing hole 47b corresponding to the position just above the shaft 43a of the water absorption roller 43.
  • the spacers S and S are both inserted below the backup member 46, so that the backup member 46 is disposed at the upper end position of the fixing hole 47b.
  • the water absorption roller 43 is in contact with the endless belt 23 around the position of the one backup member 46.
  • the endless belt 23 contacts the water absorbing roller 43 at the position of one backup member 46, but the backup member is not fixed to the other fixing holes 47a, 47c, 47d. Is gently extended on the upstream side and the downstream side in the movement direction, respectively, and the contact pressure and the contact area with the water absorption roller 43 are reduced as compared with the states of FIGS.
  • the applied adhesive is highly adhesive
  • the endless belt is caused by the adhesive of the adhesive. 23 may interfere with normal conveyance. Therefore, in such a case, by appropriately adjusting the fixing position of the backup member 46, the condition is changed so as to contact the endless belt 23 with a small contact pressure and a small contact area.
  • the number of fixing holes and the number of backup members 46 are not limited to the above examples.
  • the means for fixing the backup member 46 and the means for changing the fixed position of the backup member 46 along the moving direction of the endless belt 23 and the fixed height position from the back surface of the endless belt 23 are limited to the above-described embodiments. It is not something. That is, in addition to a mode in which the operator indicates the fixed position and the fixed height position by the display lamps 7a to 7d and the operator performs the fixing operation of the backup member 46 based on the instruction, for example, an endless belt is previously provided.
  • a plurality of backup members 46 are arranged on the back surface of each of the backup members 46.
  • Each backup member 46 is provided with an actuator, and each actuator is individually controlled by the control unit 6.
  • the fixed position of the member 46 along the moving direction of the endless belt 23 and the fixed height position from the back surface of the endless belt 23 may be automatically changed and controlled.
  • the cleaning conditions for changing the cleaning conditions of the brush roller 42 and the water absorbing roller 43 have been described.
  • the cleaning means that can change the cleaning conditions is not limited to these, and is in contact with the surface of the endless belt 23. Any means for cleaning may be used. Therefore, although not shown in the drawing, for example, a wiping roller for performing a final wiping finish on the surface of the endless belt 23 or a contact with the endless belt 23 and rubbing by conveyance of the endless belt 23 causes contamination. A blade or the like configured to be scraped off may be used.
  • FIG. 7 is an enlarged side view of an essential part for explaining a mode in which a blade is used as a cleaning means, and shows the same part as that shown in FIG. Therefore, since the site
  • reference numeral 48 denotes a blade formed in a plate shape by an elastic body such as resin or silicon rubber, which contacts the surface of the endless belt 23 in the width direction and scrapes the cleaning liquid adhering to the endless belt 23. It is fixed to drop. The water droplets scraped off are accommodated in a water receiver (not shown).
  • the fixed position of the backup member 46 along the moving direction of the endless belt 23 and the fixed height position from the back surface of the endless belt 23 can be changed.
  • the cleaning condition can be changed.
  • the fixed position and the fixed height position of the backup member 46 are changed according to the properties of the adhesive.
  • the blade 48 is brought into contact with the endless belt 23 only in the region between the two backup members 46, 46, so that high cleaning efficiency can be obtained and endlessness can be achieved. This is preferable because the load for driving the belt 23 is reduced.
  • FIG. 8 is an enlarged side view of an essential part showing an example of a recording medium transport device provided with two squeezing rollers 43d and 43e.
  • the two squeezing rollers 43d and 43e are respectively provided on the downstream side and the upstream side in the moving direction of the endless belt 23 with the water absorption roller 43 interposed therebetween.
  • the two squeezing rollers 43d and 43e are arranged at predetermined positions by being supported at both ends by a common support portion 43f.
  • the support portion 43f is connected to the actuator 43g.
  • each of the squeezing rollers 43d and 43e supported by the support portion 43f is movable in a direction in which each of the squeezing rollers 43d and 43e comes in contact with and separates from the central direction of the water absorption roller 43 (direction of arrow A in the figure). Yes.
  • the two squeezing rollers 43d and 43e move in conjunction with each other because they are supported by the common support portion 43f.
  • the squeezing roller 43d is brought into contact with the water absorbing roller 43, whereby the squeezing roller 43e and the water absorbing roller 43 are brought into non-contact, and conversely, by bringing the squeezing roller 43e into contact with the water absorbing roller 43, It is comprised so that the water absorption roller 43 may become non-contact.
  • the illustrated state shows a case where the water absorption roller 43 rotates (reverses) in the opposite direction (R direction in the figure) with respect to the moving direction of the endless belt 23.
  • the water absorption roller 43 rotates (reverses) in the opposite direction (R direction in the figure) with respect to the moving direction of the endless belt 23.
  • the control unit 6 When changing the cleaning condition so as to reversely rotate the water absorption roller 43 again, the control unit 6 brings the squeezing roller 43d into contact with the water absorption roller 43 and the squeezing roller 43e in non-contact with the water absorption roller 43.
  • the actuator 43g is controlled as follows.
  • the squeezing roller 43d always moves the part of the water absorbing roller 43 that has come out of the surface of the cleaning liquid in the cleaning rod 45 before reaching the surface of the endless belt 23, regardless of the rotation direction of the water absorbing roller 43. Or it can be squeezed by 43e, it becomes possible to raise the water absorption of the cleaning liquid by the water absorption roller 43, and to further prevent generation
  • the change in the presence / absence of the contact of the two squeezing rollers 43d and 43e with the water absorbing roller 43 according to the rotation direction of the water absorbing roller 43 has been described above, but the two control rollers 43d and 43e with respect to the water absorbing roller 43 are controlled by the same control. You may make it control pushing amount.
  • the pushing amount can be controlled by adjusting the moving stroke length of the actuator 43g.
  • the change of presence / absence of contact of the squeezing rollers 43d and 43e with the water absorption roller 43 and / or the change of the pushing amount are not limited to the configuration made by driving the actuator 43g, and are displayed according to the rotation direction of the water absorption roller 43, for example. After confirming that the display of the lamp or the like has been switched, the operator may manually move the support portion 43f.
  • the image recording apparatus is provided with four pairs of fixing holes provided at symmetrical positions with an endless belt in between.
  • the pair of fixing holes are referred to as a first fixing hole to a fourth fixing hole, respectively, from the upstream side in the moving direction of the endless belt for convenience.
  • a brush roller having brush bristles made of polypropylene on its surface is driven in reverse rotation (counterclockwise in the example of FIG. 1) at a linear velocity of 120.8 mm / s on the surface of the brush roller with respect to the moving direction of the endless belt. It was rotated and brought into contact with the surface of the endless belt.
  • a water absorbing roller having a polyurethane foam (“Rubylar L31” manufactured by Toyo Polymer Co., Ltd.) as a water absorbing member on the surface is brought into contact with the endless belt to remove the cleaning liquid adhering to the endless belt. .
  • the water-absorbing roller was controlled to be non-driven so as to be driven by the conveyance of the endless belt.
  • the backup members are installed in the first, third and fourth fixing holes, respectively. Each backup member is fixed to the lower end of each fixing hole.
  • the water absorbing roller is disposed so as to contact the endless belt only in a region between the first fixing hole and the third fixing hole.
  • predetermined printing was performed by discharging ink from the recording head onto a recording medium conveyed by the endless belt, and the endless belt was washed.
  • Test 2 50% by volume of a hard (weakly adhesive) type acrylic adhesive ("MC Polymer RH” manufactured by Murayama Chemical Laboratory Co., Ltd.) and a soft (strongly adhesive) type acrylic adhesive (Murayama Chemical Research) Residual state of the cleaning liquid was evaluated in the same manner as in Test 1 except that a backing agent formed by blending 50% by volume of “MC Polymer RS” manufactured by Tosho Co., Ltd. was applied to the endless belt. The evaluation results are shown in Table 1.
  • Test 3 Test 2 except that the water absorption roller was driven in test 2 and was driven to rotate forward (clockwise in the example of FIG. 1) with respect to the moving direction of the endless belt at a linear speed of 68.1 mm / s on the surface of the water absorption roller. In the same manner as described above, the remaining state of the cleaning liquid was evaluated. The evaluation results are shown in Table 1.
  • Test 4 In Test 2, the water absorption roller is driven, and the water absorption roller surface is driven to rotate forward (clockwise in the example of FIG. 1) with respect to the moving direction of the endless belt at a linear velocity of 85.1 mm / s.
  • the residual state of the cleaning liquid was evaluated in the same manner as in Test 2 except that the fixed height position of the backup member provided in the fixing hole was changed 4 mm above the lower end by inserting a spacer. The evaluation results are shown in Table 1.
  • the cleaning liquid does not remain by controlling the water absorbing roller to follow the endless belt.
  • Image recording device 2 Recording medium transport device 21, 22: Roller 21a: Sub-scanning motor 23: Endless belt 3: Recording head 4: Cleaning device 41: Sprinkling pipe 41a: Sprinkling port 41b: Pump 42: Brush roller 42a: Shaft 42c: Motor 42b: Brush bristles 43: Water absorbing roller 43a: Shaft 43b: Water absorbing member 43c: Motor 43d: Squeezing roller 44: First water receiving portion 45: Second water receiving portion 46: Backup members 47a to 47d: Fixed hole 48: Blade 5: Interface 6: Control units 7a to 7d: LED lamp 8: Memory 9: Detection unit P: Recording medium S: Spacer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Handling Of Sheets (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

La présente invention vise à proposer : un dispositif de transport de milieu d'enregistrement apte à maintenir une précision de transport d'un milieu d'enregistrement et à empêcher une solution de nettoyage d'être laissée à la suite du nettoyage de celui-ci, en rendant cela possible de réaliser un nettoyage optimal en fonction des propriétés d'un agent de fixation revêtu sur une courroie sans fin ; et sur un dispositif d'enregistrement d'image. Le dispositif de transport de milieu d'enregistrement est caractérisé par le fait qu'il a : une courroie sans fin (23) pour l'adhérence d'un milieu d'enregistrement (P) sur une surface revêtue d'un adhésif et transport de celui-ci ; un moyen de nettoyage pour la mise en contact de la surface de la courroie sans fin (23) et nettoyage de la surface de la courroie sans fin (23) ; et un moyen de changement de condition de nettoyage pour changer les conditions de nettoyage pour la surface de la courroie sans fin (23) par le moyen de nettoyage. Le dispositif d'enregistrement d'image comporte le dispositif de transport de milieu d'enregistrement.
PCT/JP2011/077430 2010-11-30 2011-11-28 Dispositif de transport de milieu d'enregistrement et dispositif d'enregistrement d'image WO2012073907A1 (fr)

Priority Applications (1)

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JP2010-267867 2010-11-30

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Cited By (12)

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EP2777941A1 (fr) * 2013-03-11 2014-09-17 Seiko Epson Corporation Appareil d'enregistrement et procédé d'enregistrement
EP2781362A1 (fr) * 2013-03-22 2014-09-24 Seiko Epson Corporation Appareil de décharge de liquide
JP2015030544A (ja) * 2013-07-31 2015-02-16 京セラドキュメントソリューションズ株式会社 ベルトクリーニング装置及び画像形成装置
JP2017019622A (ja) * 2015-07-10 2017-01-26 セイコーエプソン株式会社 液体吐出装置、及び搬送ベルト洗浄方法
JP2020063133A (ja) * 2018-10-18 2020-04-23 コニカミノルタ株式会社 クリーニング装置、インクジェット画像記録装置およびベルトクリーニング装置のクリーニング条件変更方法
JP2020090348A (ja) * 2018-12-05 2020-06-11 コニカミノルタ株式会社 印刷媒体搬送装置及び印刷装置
US10737495B2 (en) 2018-02-13 2020-08-11 Seiko Epson Corporation Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus
JP2020199712A (ja) * 2019-06-11 2020-12-17 コニカミノルタ株式会社 クリーニング装置、インクジェット画像形成装置およびクリーニング条件変更制御方法
US20220291621A1 (en) * 2021-03-15 2022-09-15 Seiko Epson Corporation Transport device and recording device
US20220288919A1 (en) * 2021-03-15 2022-09-15 Seiko Epson Corporation Transport device and recording device
EP4137326A1 (fr) * 2021-08-20 2023-02-22 Seiko Epson Corporation Dispositif d'enregistrement et dispositif de transport
JP7415660B2 (ja) 2020-02-28 2024-01-17 コニカミノルタ株式会社 記録媒体搬送装置および画像記録装置

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JP2004137033A (ja) * 2002-10-17 2004-05-13 Konica Minolta Holdings Inc 搬送ベルトクリーニング装置及びインクジェット記録装置
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US8985737B2 (en) 2013-03-11 2015-03-24 Seiko Epson Corporation Recording apparatus and recording method
EP2777941A1 (fr) * 2013-03-11 2014-09-17 Seiko Epson Corporation Appareil d'enregistrement et procédé d'enregistrement
EP2781362A1 (fr) * 2013-03-22 2014-09-24 Seiko Epson Corporation Appareil de décharge de liquide
JP2015030544A (ja) * 2013-07-31 2015-02-16 京セラドキュメントソリューションズ株式会社 ベルトクリーニング装置及び画像形成装置
JP2017019622A (ja) * 2015-07-10 2017-01-26 セイコーエプソン株式会社 液体吐出装置、及び搬送ベルト洗浄方法
US10737495B2 (en) 2018-02-13 2020-08-11 Seiko Epson Corporation Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus
JP7200595B2 (ja) 2018-10-18 2023-01-10 コニカミノルタ株式会社 クリーニング装置、インクジェット画像記録装置およびベルトクリーニング装置のクリーニング条件変更方法
JP2020063133A (ja) * 2018-10-18 2020-04-23 コニカミノルタ株式会社 クリーニング装置、インクジェット画像記録装置およびベルトクリーニング装置のクリーニング条件変更方法
JP7206868B2 (ja) 2018-12-05 2023-01-18 コニカミノルタ株式会社 印刷媒体搬送装置及び印刷装置
JP2020090348A (ja) * 2018-12-05 2020-06-11 コニカミノルタ株式会社 印刷媒体搬送装置及び印刷装置
JP2020199712A (ja) * 2019-06-11 2020-12-17 コニカミノルタ株式会社 クリーニング装置、インクジェット画像形成装置およびクリーニング条件変更制御方法
JP7342438B2 (ja) 2019-06-11 2023-09-12 コニカミノルタ株式会社 クリーニング装置、インクジェット画像形成装置およびクリーニング条件変更制御方法
JP7415660B2 (ja) 2020-02-28 2024-01-17 コニカミノルタ株式会社 記録媒体搬送装置および画像記録装置
US20220291621A1 (en) * 2021-03-15 2022-09-15 Seiko Epson Corporation Transport device and recording device
US20220288919A1 (en) * 2021-03-15 2022-09-15 Seiko Epson Corporation Transport device and recording device
US11691412B2 (en) * 2021-03-15 2023-07-04 Seiko Epson Corporation Transport device and recording device
EP4137326A1 (fr) * 2021-08-20 2023-02-22 Seiko Epson Corporation Dispositif d'enregistrement et dispositif de transport
US11789386B2 (en) 2021-08-20 2023-10-17 Seiko Epson Corporation Recording device and transport device

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