WO2016171032A1 - インクジェット記録装置及びインクジェット記録装置の制御方法 - Google Patents
インクジェット記録装置及びインクジェット記録装置の制御方法 Download PDFInfo
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- WO2016171032A1 WO2016171032A1 PCT/JP2016/061755 JP2016061755W WO2016171032A1 WO 2016171032 A1 WO2016171032 A1 WO 2016171032A1 JP 2016061755 W JP2016061755 W JP 2016061755W WO 2016171032 A1 WO2016171032 A1 WO 2016171032A1
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- WIPO (PCT)
- Prior art keywords
- unit
- recording medium
- conveyance
- image forming
- movement operation
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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
- B41J11/006—Means for preventing paper jams or for facilitating their removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
- B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2203/00—Embodiments of or processes related to the control of the printing process
- B41J2203/01—Inspecting a printed medium or a medium to be printed using a sensing device
- B41J2203/011—Inspecting the shape or condition, e.g. wrinkled or warped, of a medium to be printed before printing on it
Definitions
- the present invention relates to an inkjet recording apparatus and an inkjet recording apparatus control method.
- ink jet recording apparatus that records an image on a recording medium by ejecting ink from nozzles provided in a recording head.
- this ink jet recording apparatus there are a wide variety of ink jet recording apparatuses in which a nozzle surface of a recording head provided with a nozzle opening is arranged to face a recording medium and ink is ejected at an appropriate timing while the recording head and the recording medium are relatively moved. It is used.
- 2004-228561 discloses a technique in which when a lift of a recording medium is detected, the conveyance of the recording medium is first stopped, and then the image forming unit is moved to a retracted position.
- Japanese Patent Application Laid-Open No. 2004-228561 discloses that when the lifting of the recording medium is detected, the image forming unit disposed in the immediate vicinity of the conveying surface is raised or separated according to the lifting amount, or the conveyance of the recording medium is stopped. The technology to do is disclosed.
- Japanese Patent Application Laid-Open No. 2004-228688 discloses that the support surface is not exposed when the support surface (platen) of the recording medium is separated from the image forming unit in order to remove the recording medium causing the jam.
- a technique for preventing adhesion of dirt to a surface is disclosed.
- the time for detecting and evacuating a recording medium in which a conveyance state abnormality has occurred during the image forming operation is limited to a short time. It is necessary to evacuate the part sufficiently. Accordingly, there is a problem that the efficiency of the evacuation operation is deteriorated when the user simply evacuates greatly regardless of the situation, and the situation can be deteriorated depending on the state of the recording medium.
- An object of the present invention is to provide an ink jet recording apparatus and an ink jet recording apparatus control method capable of efficiently retracting an appropriate image forming unit according to the state of the recording medium in which the conveyance state is abnormal. .
- the moving operation unit is A first movement operation for relative movement so as to increase the distance between the image forming unit and the conveyance surface of the recording medium; A second movement operation for relative movement so that the transport surface is more exposed;
- the controller is When an abnormality in the conveyance state of the recording medium is detected by the first detection unit, the conveyance operation by the conveyance unit is stopped, and the movement operation unit performs the first movement operation.
- the image is displayed between the start and the end of the second movement operation when the second movement operation is subsequently performed. Determining whether the forming unit does not contact the recording medium based on the result of detection by the second detection unit; When it is determined that no contact is made, the movement operation unit is caused to perform the second movement operation, and when it is determined that contact is made, the movement operation unit is not allowed to perform the second movement operation.
- Inkjet recording apparatus After the conveyance of the recording medium by the conveyance unit is stopped and the first movement operation is completed, the image is displayed between the start and the end of the second movement operation when the second movement operation is subsequently performed. Determining whether the forming unit does not contact the recording medium based on the result of detection by the second detection unit; When it is determined that no contact is made, the movement operation unit is caused to perform the second movement operation, and when it is determined that contact is made, the movement operation unit is not allowed to perform the second movement operation. Inkjet recording apparatus.
- the invention described in claim 2 is the ink jet recording apparatus according to claim 1,
- the first detection unit detects a state in which the recording medium is raised above a predetermined reference height from the conveyance surface of the recording medium as the conveyance state abnormality.
- the invention described in claim 3 is the ink jet recording apparatus according to claim 1 or 2,
- the moving operation unit moves the image forming unit in a direction perpendicular to the conveyance surface of the recording medium during the first moving operation.
- the moving operation unit moves the image forming unit in a width direction orthogonal to a conveyance direction of the recording medium by the conveyance unit along the conveyance surface of the recording medium during the second movement operation.
- the invention according to claim 5 is the ink jet recording apparatus according to any one of claims 1 to 4,
- the image forming unit is capable of ejecting ink over a width that can be recorded in the width direction orthogonal to the conveyance direction of the recording medium by the conveyance unit, and nozzles at different positions in the width direction. Is provided with a line head arranged.
- the invention according to claim 6 is the ink jet recording apparatus according to any one of claims 1 to 5,
- the image forming unit is provided for each of a plurality of different types of ink,
- the moving operation unit moves the image forming units so as not to overlap each other,
- the control unit determines whether the image forming unit is in contact with the recording medium between the start and end of the second moving operation based on the detection result of the second detection unit, and does not make contact with the recording medium.
- the image forming unit determined to be the second moving operation is moved by the moving operation unit.
- the invention according to claim 7 is the ink jet recording apparatus according to any one of claims 1 to 6,
- the control unit determines whether or not contact between the image forming unit on which the first movement operation has been performed and the recording medium does not occur even after the conveyance operation is resumed after conveyance by the conveyance unit is stopped. When it is determined that no contact occurs, the conveyance operation by the conveyance unit is resumed and the recording medium is discharged.
- the invention according to claim 8 is the ink jet recording apparatus according to any one of claims 1 to 7,
- the control unit is characterized in that after the movement operation unit performs the second movement operation, the conveyance operation by the conveyance unit is resumed to discharge the recording medium.
- the invention according to claim 9 is the inkjet recording apparatus according to any one of claims 1 to 8,
- the control unit does not cause the conveyance unit to acquire a new recording medium from a recording medium supply unit that stores a recording medium on which image recording has not been performed. It is characterized by that.
- the invention according to claim 10 is the ink jet recording apparatus according to any one of claims 1 to 9,
- the control unit stops the image formation on the recording medium by the image forming unit together with the conveyance operation by the conveyance unit. .
- the invention according to claim 11 is the ink jet recording apparatus according to claim 10,
- the control unit finishes the image formation being formed on the recording medium conveyed before the recording medium in which the conveyance state abnormality is detected.
- the image forming unit and the transport unit are operated until the image forming unit and the transport unit are operated, and then the image forming operation by the image forming unit and the transport operation by the transport unit are stopped.
- the invention according to a twelfth aspect is the ink jet recording apparatus according to any one of the first to eleventh aspects, A fixing unit for fixing the ink landed on the recording medium; When the conveyance state abnormality is detected by the first detection unit, the control unit stops the operation of the fixing unit after fixing all the images formed by the image forming unit. Yes.
- the invention according to claim 13 is the inkjet recording apparatus according to any one of claims 1 to 12,
- the casing is provided with an opening / closing part,
- the control unit can open the opening / closing unit after the operation of the image forming unit and conveyance of the recording medium by the conveyance unit are stopped.
- the invention according to claim 14 is the ink jet recording apparatus according to claim 13,
- the control unit conveys only to the conveyance unit at a lower speed than during image formation when the opening / closing unit is opened after conveyance of the recording medium by the conveyance unit is stopped in response to detection of the conveyance state abnormality. It is characterized by enabling operation.
- the invention according to claim 15 is the ink jet recording apparatus according to claim 13 or 14, It has a temperature measurement unit,
- the control unit is characterized in that the opening and closing unit can be opened when a predetermined heating part is within a reference temperature range as measured by the temperature measuring unit.
- the invention according to claim 16 is the ink jet recording apparatus according to any one of claims 1 to 15, A notification unit for performing a predetermined notification operation;
- the control unit is configured to cause the notification unit to perform the notification operation when the conveyance state abnormality is detected by the first detection unit.
- the invention according to claim 17 is the ink jet recording apparatus according to claim 16,
- the control unit varies the notification operation by the notification unit according to whether or not the second movement operation has been performed.
- the invention according to claim 18 A transport unit that transports the recording medium, an image forming unit that forms an image by ejecting ink onto the recording medium, a moving operation unit that moves the image forming unit, and a conveyance state abnormality of the recording medium that is being transported
- a control method of an ink jet recording apparatus comprising: a first detection unit that detects; and a second detection unit that performs detection related to contact between the recording medium and the image forming unit, When the conveyance state abnormality of the recording medium is detected by the first detection unit, the conveyance operation by the conveyance unit is stopped, and the moving operation unit is provided with the image forming unit and the conveyance surface of the recording medium.
- a movement control step that causes the movement operation unit to perform the second movement operation when it is determined not to contact, and causes the movement operation unit not to perform the second movement operation when it is determined to contact. It is characterized by including.
- the image forming unit in the ink jet recording apparatus, there is an effect that the image forming unit can be retracted appropriately and efficiently according to the state of the recording medium in which the conveyance state is abnormal.
- FIG. 1 is a schematic diagram illustrating an overall configuration of an ink jet recording apparatus according to an embodiment of the present invention.
- FIG. 3 is a perspective view showing an arrangement of a head unit with respect to an image forming drum. It is a block diagram which shows the function structure of an inkjet recording device. It is a figure explaining the retraction
- FIG. 10 is a flowchart illustrating a control procedure of a mounting abnormality detection process according to Modification 1; It is a figure which shows the modification 2 of an inkjet recording device. It is a figure which shows the modification 2 of an inkjet recording device. It is a figure which shows the modification 3 of an inkjet recording device.
- FIG. 1 is a schematic view seen from the front for explaining the overall configuration of an inkjet recording apparatus 1 according to an embodiment of the present invention.
- the ink jet recording apparatus 1 of the present embodiment is for business use capable of forming an image on a large recording medium having a poster size or larger, and is larger and faster than an ink jet recording apparatus for home use. Image formation is possible.
- the ink jet recording apparatus 1 includes a paper supply unit 10 (recording medium supply unit), an image forming main body unit 20, a paper discharge unit 30, a control unit 40 (see FIG. 3), and the like.
- the recording medium P stored in the paper feeding unit 10 is transported to the image forming main body unit 20 based on the control by the control unit 40, and is ejected to the paper ejection unit 30 after an image is formed.
- the ink jet recording apparatus 1 includes a paper supply unit 10 (recording medium supply unit), an image forming main body unit 20, a paper discharge unit 30, a control unit 40 (see FIG. 3), and the like.
- the recording medium P stored in the paper feeding unit 10 is transported to the image forming main body unit 20 based on the control by the control unit 40, and is
- the paper feeding unit 10 sends the recording medium P stored therein to the image forming main body unit 20 one by one.
- the recording medium P various media such as printing paper, cells, films and fabrics having various thicknesses that can be curved and supported on the outer peripheral surface of the image forming drum 21 are used.
- the sheet feeding unit 10 includes a sheet feeding tray 11 that stores the recording medium P, and a feeder board 12 that conveys the recording medium P from the sheet feeding tray 11 to the image forming main body unit 20.
- the paper feed tray 11 is a plate-like member provided so that one or a plurality of recording media P can be placed thereon.
- the paper feed tray 11 is provided to move up and down according to the amount of the recording medium P placed on the paper feed tray 11, and the uppermost recording medium P is conveyed by the feeder board 12 in the up and down movement direction. Held at a position.
- the feeder board 12 is configured to drive a ring-shaped belt 123 carried by a plurality of (for example, two) rollers 121 and 122 on the inner side to convey the recording medium P on the belt 123, or on the paper feed tray 11.
- a supply unit that transfers the uppermost recording medium P placed on the belt 123 onto the belt 123.
- the feeder board 12 conveys the recording medium P delivered on the belt 123 by the supply unit along the belt 123.
- the image forming main body 20 includes an image forming drum 21, a delivery unit 22, a first sensor 23 (first detecting unit), a head unit 24 (image forming unit), and a second sensor 25 (second detecting unit).
- An irradiation unit 26 fixing unit
- a delivery unit 27 a rotation measurement unit 28, and the like.
- the image forming drum 21 has a cylindrical outer peripheral shape, carries the recording medium P on the outer peripheral surface, and performs a transport operation for transporting the recording medium P according to a rotational operation with respect to the central axis of the cylinder.
- the outer peripheral surface of the image forming drum 21 is heated by the heater 215, and the recording medium P to be carried is heated and maintained at an appropriate temperature.
- the delivery unit 22 delivers the recording medium P delivered from the paper feeding unit 10 to the image forming drum 21.
- the delivery unit 22 includes a swing arm 221 that supports one end of the recording medium P conveyed by the feeder board 12 and a cylindrical delivery drum that delivers the recording medium P supported by the swing arm 221 to the image forming drum 21.
- the recording medium P on the feeder board 12 is picked up by the swing arm unit 221 and transferred to the transfer drum 222 to guide the recording medium P in the direction along the outer peripheral surface of the image forming drum 21 to form an image. Delivered to drum 21.
- the first sensor 23 is an image forming drum 21 immediately after the recording medium P is delivered from the delivery unit 22 and upstream in the transport direction from the position where the head unit 24 forms an image on the recording medium P.
- the floating (abnormal conveyance state) of the recording medium P placed thereon is detected.
- An optical sensor that emits directional light that crosses the beam and detects the amount of light received by receiving the irradiated light is used.
- the directional light for example, laser light, emitted light of an appropriately condensed LED or organic ELD (Electro Luminescent Diode), or the like is used.
- the emitted light is normally detected by the light receiver 232 as it is, but when the recording medium P is lifted above the reference height, the amount of light detected by being blocked by the lifted portion. Decreases.
- the lift amount at which the first sensor 23 detects a decrease in the amount of light, that is, the reference height is a distance (height) that maintains a predetermined separation distance without contact between the head unit 24 and the recording medium P during image formation. It is.
- the head unit 24 is suitable for the recording medium P that moves according to the rotation of the image forming drum 21 from a plurality of nozzle openings provided on the surface (nozzle surface) facing the recording medium P in the head unit 24. An image is formed by ejecting ink droplets at timing.
- the head unit 24 includes one or a plurality of recording heads provided with a plurality of nozzles. In the ink jet recording apparatus 1 of the present embodiment, four head units 24 are arranged corresponding to each of four colors (plural types) of ink at a predetermined interval in the conveyance direction of the recording medium P.
- the four head units 24 output C (cyan), M (magenta), Y (yellow), and K (black) inks, respectively.
- the number of head units 24 may be more or less than four.
- these inks are cured by being irradiated with ultraviolet rays.
- the ink may be heated and maintained at an appropriate temperature inside the head unit 24 by a heater separate from the heater 215 that heats the image forming drum 21.
- each of the head units 24 includes a plurality of nozzle openings arranged in the width direction over the image forming width on the recording medium P, and the nozzle openings while moving the recording medium P in the transport direction.
- a line head capable of forming an image by a single pass by ejecting ink onto the recording medium P is provided.
- the head unit 24 is attached to a support unit (carriage) (not shown), and is used by being fixed so as to be separated from the recording medium P by an appropriate distance during image recording. It can be moved along with the movement of the support portion according to the operation of the portion 242 (moving operation portion).
- the moving operation is well known, for example, by moving along a rail by winding or winding of a belt, by engaging a gear with a rotation of a stepping motor, or by using a change in hydraulic pressure or the like. It is performed by appropriately selecting from technical means. Further, as described later, different technical means may be used for the first movement operation for changing the distance from the outer peripheral surface of the image forming drum 21 and the second movement operation for exposing the outer peripheral surface.
- the second sensor 25 is a sensor that performs detection related to the contact between the nozzle surface of the head unit 24 and the recording medium P.
- the second sensor 25 having the same configuration as the first sensor 23 is used.
- the amount of lift detected by the second sensor 25 is maximized from the outer circumferential surface of the head unit 24 outward in the rotational radius direction of the image forming drum 21 (ie, radially outward from the rotational axis perpendicular to the rotational axis).
- the distance to a limited distance or a minute distance (for example, about a few percent of the maximum distance or a value according to a lower limit size separable by detection by the second sensor 25).
- the second sensor 25 is provided corresponding to each of the plurality of head units 24.
- the irradiation unit 26 irradiates energy rays of a predetermined wavelength, here ultraviolet rays, and cures the ink ejected from the head unit 24 onto the recording medium P.
- the irradiation unit 26 includes, for example, a fluorescent tube such as a low-pressure mercury lamp, and irradiates ultraviolet rays by applying a voltage to the fluorescent tube to emit light.
- the irradiation unit 26 is in the vicinity of the outer peripheral surface of the image forming drum 21, and after the ink is discharged from the head unit 24 onto the recording medium P conveyed by the rotation of the image forming drum 21, the recording medium P is imaged.
- the recording medium P Before passing from the forming drum 21 to the delivery unit 27, the recording medium P is provided so that ultraviolet rays can be irradiated.
- the irradiation unit 26 irradiates the recording medium P on which the ink has been ejected on the outer peripheral surface of the image forming drum 21 with energy rays, and cures the ink on the recording medium P by the action of the energy rays.
- the fluorescent tube emitting ultraviolet light is not limited to a low-pressure mercury lamp.
- fluorescent tubes include a mercury lamp having an operating pressure of several hundred Pa to 1 MPa, a light source that can be used as a germicidal lamp, a cold cathode tube, an ultraviolet laser light source, a metal halide lamp, and a light emitting diode.
- a light source that emits energy rays having a wavelength for curing the ink is provided instead of the above-described configuration that emits ultraviolet rays.
- the rotation measurement unit 28 includes, for example, an encoder, and outputs a signal for measuring the rotation angle of the image forming drum 21 to the control unit 40.
- the measurement value obtained by the rotation measuring unit 28 is used to detect the rotation abnormality of the image forming drum 21 and to discharge the ink from the nozzles of the head unit 24 when the recording medium P is transferred from the transfer unit 22 to the image forming drum 21. Used for timing control.
- the delivery unit 27 conveys the recording medium P after the landed ink is cured from the image forming drum 21 to the paper discharge unit 30.
- the delivery unit 27 includes a cylindrical delivery roller 271, a plurality of (for example, two) rollers 272 and 273, and an annular belt 274 supported by the rollers 272 and 273 on the inner surface.
- the delivery roller 271 guides the recording medium P on the image forming drum 21 onto the belt 274.
- the delivery unit 27 conveys the recording medium P transferred from the transfer roller 271 onto the belt 274 by moving the recording medium P together with the belt 274 that circulates as the rollers 272 and 273 rotate. To send.
- the image forming main body 20 is almost entirely housed in the housing 200, and a door 201 (opening / closing part) is provided on the front side.
- the door 201 has an interlock function. Normally, the door 201 cannot be opened when the image forming main body 20 is operating, and the door 201 is opened in an emergency or the like.
- the power supply to the inkjet recording apparatus 1 is interrupted. On the other hand, whether or not the door 201 can be opened is also controlled based on the control operation of the control unit 40. When an abnormality occurs in the inkjet recording apparatus 1, the power supply to the entire inkjet recording apparatus 1 is not interrupted.
- the door 201 can be opened under appropriate conditions.
- the rotation operation of the image forming drum 21 is prohibited, or can be rotated only at a sufficiently low speed as compared with the time of image formation according to the user's operation, and the risk of the user's hand being caught is sufficiently reduced. Control is preferably performed.
- the paper discharge unit 30 stores the recording medium P after image formation sent out from the image forming main body unit 20 until it is taken out by the user.
- the image forming drum 21, the delivery unit 22, and the delivery unit 27 constitute a transport unit.
- FIG. 2 is a perspective view showing the arrangement of the head unit 24 with respect to the image forming drum 21.
- the image forming drum 21 includes a claw portion 211 and a suction portion 212 for carrying the recording medium P on the outer peripheral surface thereof.
- the claw portion 211 has a plurality of claws along a width direction at a predetermined position on the outer peripheral surface of the image forming drum 21, and sandwiches the vicinity of one side of the recording medium P with the outer peripheral surface of the image forming drum 21.
- the air intake unit 212 includes a plurality of air intake holes provided on the outer peripheral surface of the image forming drum 21, a suction unit that sucks gas into the image forming drum 21 through the air intake holes, and the like. An air pump or a fan is used as the suction unit.
- the suction unit 212 supports the recording medium P along the outer peripheral surface of the image forming drum 21 by a suction force generated by suction from the suction hole.
- the head units 24 are provided so as to be individually movable in the width direction perpendicular to the conveyance direction of the recording medium after each head unit 24 is moved in the radial direction away from the outer peripheral surface of the image forming drum 21. That is, the head unit 24 can be retracted by moving the nozzle surface from a position facing the image forming drum 21. Under the control of the control unit 40, the head unit 24 moves to a position where the nozzle surface opposes the image forming drum 21 at a close distance suitable for ink ejection during image formation, and the lift of the recording medium P is detected. A first movement operation is performed in which the distance between the outer peripheral surface of the image forming drum 21 and the nozzle surface is temporarily increased.
- the first movement operation is performed by movement in a direction perpendicular to the outer peripheral surface. Further, when the recording medium P that has been lifted is removed from the outer peripheral surface or when various maintenances such as cleaning of the nozzle surface are performed, the head is positioned at a position where the nozzle surface does not face the outer peripheral surface of the image forming drum 21.
- Exposure here refers to moving the head unit 24 in a direction other than the radial direction (both positive and negative) of the image forming drum 21 with respect to the image forming drum 21, so that it is above the outer peripheral surface (conveying surface) (radial direction).
- the second movement operation is performed by moving in the direction perpendicular to the conveyance direction of the recording medium P along the conveyance surface, that is, in the width direction.
- the movement of the head unit 24 is performed together with the support unit (carriage) to which the head unit 24 is attached, according to the operation of the support unit driving unit 242 by the support unit control unit 442 (see FIG. 3).
- the nozzle surface cleaning operation can be performed at or near the position moved in the width direction by the second moving operation.
- This second moving operation is performed for the purpose of retracting the head unit 24 and cleaning. You may use together by movement.
- the first movement operation it is only necessary to cope with the normally lifted minute recording medium P, for example, from the mm order to the cm order, whereas in the second movement operation, the user's field of view and the hand insertion position are secured. Therefore, the moving distance becomes longer than that in the first moving operation.
- FIG. 3 is a block diagram showing a functional configuration of the inkjet recording apparatus 1 of the present embodiment.
- the inkjet recording apparatus 1 includes a transport motor 214, a head drive unit 241, a heater 215, a temperature measurement unit 216, a support unit drive unit 242, a transport control unit 414, and a heater.
- a control unit 415, a head control unit 441, a support unit control unit 442, an irradiation control unit 46, a detection control unit 43, an operation display unit 47, a notification output unit 48 (notification unit), a communication unit 49, etc. Prepare. These units are connected to each other by a bus 50.
- the controller 40 controls the overall operation of the inkjet recording apparatus 1.
- the control unit 40 includes a CPU 401 (Central Processing Unit), a RAM 402 (Random Access ⁇ Memory), a storage unit 403, and the like.
- the CPU 401 performs various arithmetic processes and executes control operations.
- the RAM 402 provides a working memory space to the CPU 401 and stores temporary data.
- the storage unit 403 stores a control program 403a and various setting information.
- the storage unit 403 may temporarily store image data related to a print job, processing data of the image data, and the like.
- the storage unit 403 includes a nonvolatile storage unit such as an HDD (Hard Disk Drive) or a flash memory. When the image data is temporarily stored, the storage unit 403 is a volatile or nonvolatile memory that can read and write at high speed, such as a DRAM. Memory.
- the conveyance motor 214 has a rotation motor that rotates the image forming drum 21.
- the conveyance motor 214 causes the image forming drum 21 to rotate so as to convey the recording medium P at an appropriate speed in accordance with a control signal from the conveyance control unit 414.
- the transport motor 214 cannot stop the rotation of the image forming drum 21 immediately, but stops after rotating at an angle corresponding to the rotation speed of the image forming drum 21 while decelerating.
- the head driving unit 241 performs a driving operation for discharging ink from the opening of each nozzle of the head unit 24.
- the head drive unit 241 deforms the actuator by applying a voltage having a waveform corresponding to the presence or absence of ink ejection to the actuator composed of a piezoelectric element under the control of the head control unit 441. Accordingly, the ink flow path communicating with the nozzles is compressed and extended to cause ink discharge.
- the heater 215 heats the recording medium P via the image forming drum 21 or directly. Further, as described above, the head unit 24 may be provided with a heater for heating and keeping ink separately. In addition, the temperature measurement unit 216 measures the temperature of the outer peripheral surface of the image forming drum 21 that is a location heated by the heater 215 (a predetermined heating location). In addition, when the ink heating control is performed as described above, a temperature measuring unit that measures the heated ink temperature or the temperature of the ink flow path wall may be further provided. The heater control unit 415 switches the heater 215 on and off so that the temperature of the heating target is maintained in an appropriate range according to the measurement data of the temperature measurement unit 216. Alternatively, the heater control unit 415 may be able to change the heating intensity of the heater 215.
- the support unit drive unit 242 moves the head unit 24 by moving the support unit that supports the head unit 24 as described above based on the control signal from the support unit control unit 442.
- the support unit driving unit 242 moves the support unit in the radial direction of the image forming drum 21 from the outer peripheral surface of the image forming drum 21 and moves the support unit in the width direction of the image forming drum 21 to move the image.
- the movement related to the second movement operation is performed so as to face or not face the outer peripheral surface of the forming drum 21.
- the detection control unit 43 controls the operation of the first sensor 23 and the second sensor 25 and outputs detection data to the CPU 401 of the control unit 40.
- the detection control unit 43 performs data relating to the amount of light received from the first sensor 23 at any time during the floating detection operation of the recording medium P, that is, during the recording operation of the recording medium P due to the rotation of the image forming drum 21 accompanying the image recording operation.
- the second sensor 25 is operated as necessary to acquire data related to the amount of light received from the second sensor 25.
- the detection control unit 43 may sample an analog signal corresponding to the amount of received light with an ADC (analog-digital converter) and input a digital value, or may use a comparator or the like to input a signal. The voltage may be compared with a reference value to obtain a binary voltage signal indicating only information about whether or not the voltage is normal.
- ADC analog-digital converter
- the irradiation control unit 46 controls the operation of the irradiation unit 26 to cure the ink ejected from the nozzles of the head unit 24 and landed on the recording medium P.
- the irradiation control unit 46 only needs to irradiate the recording medium P with ultraviolet rays while the recording medium P recorded with ink passes between the irradiation unit 26 and the image forming drum 21. When suspending, the irradiation of ultraviolet rays from the irradiation unit 26 is appropriately stopped.
- the operation display unit 47 accepts user operations and displays information and menus for the user.
- a display provided with an LCD (Liquid Crystal Display) as the display unit 472 is used, and various menus and statuses related to image formation are displayed on the display screen of the LCD.
- a touch panel as an operation detection unit 471 is provided corresponding to the LCD, and the touch operation corresponding to the display on the display screen can be detected by arranging the touch panel on the display screen of the LCD.
- the notification output unit 48 performs a predetermined notification operation when an abnormality occurs in the inkjet recording apparatus 1.
- Examples of the notification output unit 48 include a sound generation unit that generates a predetermined beep sound using a piezoelectric element or the like, and a light emitting unit that blinks or lights an LED lamp.
- the communication unit 49 is an interface for performing communication connection with an external device such as a PC and performing data communication according to the standard.
- Examples of the communication unit 49 include a network card for LAN connection.
- a wireless communication interface using Bluetooth communication (registered trademark: Bluetooth) or a connection related to direct connection with an external device by USB is used. It may be a terminal and a driver.
- the control unit 40 acquires a print command and image data to be image-formed according to the print command from the external device via the communication unit 49, and outputs status information and the like to the external device.
- each control unit such as the transport control unit 414, the head control unit 441, the heater control unit 415, the detection control unit 43, and the irradiation control unit 46 is controlled by the CPU 401 of the control unit 40.
- a plurality of CPUs, RAMs, and the like that operate individually based on a control signal from the CPU 401 of the control unit 40.
- FIGS. 5A and 5B are diagrams for explaining the retraction operation of the head unit 24 and the detection operation of the recording medium in the inkjet recording apparatus 1 of the present embodiment.
- the first is shown.
- the lift area F higher than the reference height h is detected by the sensor 23 to stop the rotation operation of the image forming drum 21 and to move the head unit 24 outward in the radial direction of the image forming drum 21, that is, with respect to the outer peripheral surface.
- the operation of the head unit 24 is performed separately here. Alternatively, the plurality of head units 24 may be moved simultaneously.
- the first sensor 23 includes a light emitter 231 and a light receiver 232, and is higher by a reference height h than the outer peripheral surface of the image forming drum 21.
- Laser light that crosses the position in the width direction is emitted from the light emitter 231 toward the light receiver 232.
- the light amount of the blocked light is reduced and detected by the light receiver 232.
- the second sensor 25 determines whether or not the raised area F is in contact with the head unit 24.
- the lift area F detected by the first sensor 23 can reach a position facing the head unit 24.
- FIG. 4C in the view of the recording medium P and the second sensor 25 as viewed from above facing the transport surface, here, a part of the light emitted from the light emitter 251 of the second sensor 25 is lifted. It is blocked by the region F and received by the light receiver 252 of the second sensor 25, and it is detected that the head unit 24 is in contact with the floating region F according to the amount of light received. In this case, the moving operation of the head unit 24 is not performed.
- the head unit 24 when the floating area F is not in contact with the head unit 24 by the second sensor 25, the light emitted from the light emitter 251 is received by the light receiver 252 as it is, and according to the received light amount. Thus, it is detected that the head unit 24 is not in contact with the raised area F. In this case, the head unit 24 is moved to the retracted position in the width direction as shown in FIG. 5B. The head unit 24 and the light receiver 252 are arranged and moved so as not to come into contact with each other when the head unit 24 is retracted. Although the head unit 24 is completely retracted from the recording medium P here, the head unit 24 may be retracted so that only a part of the head unit 24 is exposed depending on the situation.
- FIG. 6 is a flowchart illustrating a control procedure by the control unit 40 of the mounting abnormality detection process executed in the inkjet recording apparatus 1 of the present embodiment.
- the mounting abnormality detection process is started when the image forming drum 21 is rotated and the recording medium is transported when image recording is performed, and the rotation of the image forming drum 21 and the transport of the recording medium are stopped. Is finished.
- control unit 40 (CPU 401) acquires a signal related to the amount of light detected by the light receiver of the first sensor 23 (step S11). The control unit 40 determines whether or not the detected light amount is an abnormal value (step S12). If it is determined that the value is not an abnormal value (“NO” in step S12), the process of the control unit 40 returns to step S11.
- step S12 If it is determined that the value is an abnormal value (“YES” in step S12), the control unit 40 stops the ink ejection operation, the ultraviolet irradiation of the irradiation unit 26, and the conveyance of the recording medium P, and the head unit 24 is moved.
- the recording medium P is moved in the direction away from the recording medium P up to the maximum separation distance (step S15).
- the control unit 40 also turns off the heater 215 to lower the temperature of the image forming drum 21.
- the control unit 40 may continue the operation of the air intake unit 212 after the conveyance of the recording medium P is stopped until the rotation of the image forming drum 21 is actually stopped. By the air suction operation, the outer peripheral surface temperature of the image forming drum 21 can be lowered more quickly.
- the control unit 40 determines whether or not the rotation operation of the image forming drum 21 has been stopped (step S16). When it is determined that it has not stopped (“NO” in step S16), the control unit 40 repeats the process of step S16. If it is determined that it has stopped (“YES” in step S16), the control unit 40 acquires a signal indicating the amount of light received by the light receiver 252 of the second sensor 25 (step S17).
- the control unit 40 determines whether or not the acquired amount of received light of the second sensor 25 is within a normal range (step S18). If it is determined that it is within the normal range (“YES” in step S18), the control unit 40 moves the head unit 24 to the retracted position in the width direction (step S20). The control unit 40 causes the notification output unit 48 and the display unit 472 to perform a notification operation indicating that the image recording is stopped due to the mounting abnormality (step S24). If it is determined that the amount of light received by the second sensor 25 is not within the normal range (“NO” in step S18), the processing of the control unit 40 proceeds to step S24. When the process of step S24 ends, the control unit 40 ends the mounting abnormality detection process.
- control unit 40 causes the image formation so that the image formation related to the image data interrupted in the middle when the image formation is resumed is performed again from the top. It is preferable to output the data to the head unit 24 again from the beginning.
- [Modification 1] 7A and 7B are diagrams for explaining the retreat operation of the head unit 24 in the ink jet recording apparatus 1 of the first modification. 7A and 7B are views seen from the same direction as FIG. 4A.
- the head unit 24 when it is determined that the head unit 24 can be moved to the retracted position based on the amount of light received by the second sensor 25, the head unit 24 is always moved.
- the transport unit is operated again to discharge the recording medium P.
- the height of the floating region F is a height that does not contact the head unit 24 that has been retracted in the radial direction, it is not necessary to move the head unit 24 to the retracted position.
- the first sensor 23 can detect the floating of the recording medium P at two different heights, and the height of the height that comes into contact with the head unit 24 after retreating to the detected recording medium P in the radial direction. Execution is possible by making it possible to determine whether or not there is a region F.
- the recording medium P can be discharged as it is.
- the recording medium P in addition to the detection operation at the two types of heights of the first sensor 23 described above, for example, to which position the lift area F has moved is calculated based on the measurement value of the rotation measurement unit 28. Can be executed. If a jam occurs due to the recording medium P being entangled with the head unit 24 or the like, it is detected by the second sensor 25. However, the jam may occur at other positions and cannot be detected. In the case where it is assumed, the discharge operation may not be automatically determined as described above, and the user may always make it visible once.
- FIG. 8 is a flowchart showing a control procedure by the control unit 40 of the mounting abnormality detection process executed in the inkjet recording apparatus 1 of the present modification.
- steps S13, S14, S19, and S21 to S23 are added to the placement abnormality detection process shown in the above embodiment, and the process of step S24 is replaced with step S24a.
- the other processes are the same, and the same processes are denoted by the same reference numerals and detailed description thereof is omitted.
- step S12 If it is determined in step S12 that an abnormality has been detected in the output of the first sensor 23 ("YES" in step S12), the control unit 40 (CPU 401) first detects that an abnormality has been detected.
- the notification output unit 48 performs the notification operation shown (step S13).
- the control unit 40 continues the image recording up to the rear end of the recording medium on which an image is currently being formed, and causes the irradiation unit 26 to cure the image recorded on the recording medium (step S14). Thereafter, the process of the control unit 40 proceeds to step S15.
- step S18 If it is determined in step S18 that the output of the second sensor 25 is not normal ("NO" in step S18), the control unit 40 proceeds to step S22.
- step S18 When it is determined that the output of the second sensor 25 is normal (“YES” in step S18), the control unit 40 further rotates the image forming drum 21 again when the image forming drum 21 is rotated again. It is determined whether or not the head unit 24 can be contacted (step S19). If it is determined that no contact is made (“NO” in step S19), the process of the control unit 40 proceeds to step S21. When it is determined that the contact is made (“YES” in step S19), the control unit 40 moves the head unit 24 to the retracted position (step S20). Then, the process of the control unit 40 proceeds to step S21.
- step S21 the control unit 40 operates the image forming drum 21 again to discharge the recording medium P (step S21). Then, the process of the control unit 40 proceeds to step S22.
- the control unit 40 determines whether or not the temperature of the image forming drum 21 is within the reference temperature range (step S22).
- a temperature range for example, 0 ° C. or more and 40 ° C. or less, etc.
- the control unit 40 repeats the process of step S22.
- the control unit 40 unlocks the door 201 and permits the opening (step S23).
- the control unit 40 causes the notification output unit 48 to perform a notification operation corresponding to each processing content after step S18 (step S24a). Then, the control unit 40 ends the mounting abnormality detection process. Note that the control unit 40 does not immediately end the placement abnormality detection process after the process of step S24a, and controls the operation of each part when the door 201 is opened according to the user's operation, that is, the acquired print job. Execution prohibition, operation prohibition of each unit such as the irradiation unit 26 according to user operation to the operation detection unit 471, and rotation speed of the image forming drum 21 (rotation operation at lower speed than normal image formation (conveyance operation)) And the maximum rotation angle per rotation can be limited.
- FIGS. 9A and 9B are diagrams illustrating a second modification of the ink jet recording apparatus 1.
- 9A and 9B are views seen from the same direction as FIG. 4A.
- the head unit 24 is moved obliquely instead of moving vertically to the outer peripheral surface. In this manner, the head unit 24 can be moved away from the outer peripheral surface by moving in a preferred direction according to the structure and arrangement of the support portion.
- the head unit 24 when the recording medium P (the outer peripheral surface of the image forming drum 21) is exposed, the head unit 24 may be moved in a direction having a conveyance direction component.
- the plurality of head units 24 when the plurality of head units 24 are moved in the same direction with respect to the outer peripheral surface of the image forming drum 21, the distance between the nozzle surfaces of some of the head units 24 and the outer peripheral surface of the image forming drum 21 is temporarily increased.
- the direction of movement is preferably set to a direction that does not include such distance reduction.
- FIG. 9C is a diagram illustrating a third modification of the ink jet recording apparatus 1.
- FIG. 9C is a view seen from the same direction as FIG. 4C.
- the ink jet recording apparatus 1 includes a scan-type head that ejects ink while moving (scanning) in the width direction instead of the head unit 24 including a line head.
- the recording medium P is retracted so as to expose it, the recording medium P is not in contact when the recording medium P is stopped when the head is moved in the width direction.
- there may be a case of contact during the retreat operation In such a case, the ink jet recording apparatus 1 does not perform the retreat operation of the head unit 24.
- the ink jet recording apparatus 1 ejects ink onto the recording medium P and the conveyance unit (the image forming drum 21, the delivery unit 22, and the delivery unit 27) that conveys the recording medium P, and images.
- a head unit 24 that forms the image forming unit, a support unit driving unit 243 that moves the head unit 24, a first sensor 23 that detects the lifting of the image forming drum 21 from the conveyance surface as an abnormal conveyance state of the recording medium P being conveyed, And a second sensor 25 that performs detection related to contact between the recording medium P and the head unit 24, and a control unit 40 that controls operations related to image formation.
- the support driving unit 243 moves the head unit 24 so that the head unit 24 is moved to increase the distance between the head unit 24 and the transport surface of the recording medium P, and the transport surface is more exposed.
- the control unit 40 stops the conveyance operation by the conveyance unit (image forming drum 21), and causes the support unit driving unit 243 to perform the first movement operation.
- the conveyance of the recording medium P by the image forming drum 21 is stopped and the second movement operation is performed after the completion of the first movement operation, the period from the start to the end of the second movement operation is determined. Whether the head unit 24 does not contact the recording medium P is determined based on the result of detection by the second sensor 25.
- the support unit driving unit 243 performs a second movement operation. If it is determined that contact is made, the support unit drive unit 243 is not allowed to perform the second movement operation. That is, after the first moving operation, the second moving operation is performed only when the recording medium P does not contact the head unit 24 or further entangle it, so that the head unit 24 should be retracted. However, the problem of scratching the nozzle surface of the head unit 24 is not caused. Accordingly, it is possible to retract the head unit 24 (that is, the recording head) appropriate for the state of the recording medium P in which the conveyance state is abnormal.
- the space required for the evacuation is determined more efficiently than in the past, and the operation for avoiding the recording medium P and the recording medium P are exposed. It is possible to set a suitable moving direction and moving distance according to different purposes such as the operation.
- the first sensor 23 detects a state in which the recording medium P is raised above a predetermined reference height from the conveyance surface of the recording medium P as a conveyance state abnormality. Therefore, it is possible to easily acquire the possibility that the recording medium P will come into contact with the nozzle surface of the head unit 24 or that the recording medium P may be caught by the head unit 24 or other components.
- the support unit driving unit 243 moves the head unit 24 in a direction perpendicular to the conveyance surface of the recording medium P during the first movement operation.
- the head unit 24 can be retracted from the lifted portion at the shortest distance. Therefore, the possibility that the lifted portion comes into contact with the nozzle surface of the head unit 24 can be efficiently reduced.
- the support unit driving unit 243 moves the head unit 24 in the width direction orthogonal to the conveyance direction of the recording medium P by the conveyance unit (image forming drum 21) along the conveyance surface of the recording medium P. Move.
- the upper part of the conveying surface can be exposed widely, so that the user can easily visually recognize the recording medium P in which the conveying state is abnormal by inserting a hand or the like and adjust the floating portion. Can be done.
- the retreat position is set by simply moving the plurality of head units 24 radially from the transport surface. Since it takes a large space by being dispersed, space can be saved by moving the head units 24 in the width direction in parallel with each other during the second movement.
- the head unit 24 is capable of ejecting ink over a recording medium P in a width direction that can be recorded in the width direction orthogonal to the conveyance direction of the recording medium P by the image forming drum 21, and in different positions in the width direction.
- by moving in the width direction during the second moving operation it is possible to expose the recording medium P so as to be visible and adjustable by the user while facilitating the retreating operation of the line head.
- the arrangement of the nozzle openings in the line head may be one-dimensional or two-dimensional, and the one-dimensional arrangement direction or one direction of the axes of the two-dimensional arrangement is not parallel to the width direction. May be.
- the head unit 24 is provided for each of a plurality of different types of ink, the support unit driving unit 243 moves the head units 24 so as not to overlap each other, and the control unit 40 performs the second movement operation of each of the head units 24. Is determined based on the detection result by the second sensor 25 from the start to the end of the recording, and the head unit 24 determined not to be in contact is second moved by the support unit driving unit 243. Make it work. In this way, by moving only the head unit 24 that can be moved safely and exposing the transport surface and the recording medium P around the head unit 24 that cannot be moved, it is easy for the user to deal with it manually. I can do it.
- control unit 40 determines whether or not the contact between the head unit 24 that has performed the first movement operation and the recording medium P does not occur even after the conveyance operation is resumed after the conveyance by the image forming drum 21 is stopped. When it is determined that no contact occurs, the conveyance operation by the conveyance unit (image forming drum 21) is resumed and the recording medium P is discharged. As described above, in the inkjet recording apparatus 1, it is possible to determine whether or not the recording medium P is in contact with the nozzle surface after the first movement operation and discharge the recording medium P in which the conveyance state abnormality has occurred. Therefore, it is possible to safely reduce the user's trouble when the conveyance state abnormality occurs and to resume image formation.
- control unit 40 restarts the conveyance operation by the conveyance unit (image forming drum 21) after the support unit driving unit 243 performs the second movement operation, so that the recording medium P is discharged.
- the recording medium P in which the conveyance state is abnormal can be efficiently removed without causing problems such as surface scratches, dirt, and jamming, and image formation can be easily resumed.
- the control unit 40 starts a new one from the paper supply unit 10 that stores the recording medium P on which no image is recorded in the conveyance unit (delivery unit 22).
- the recording medium P is not acquired.
- the control unit 40 stops the conveyance operation by the image forming drum 21 and stops the image formation on the recording medium P by the head unit 24.
- wasteful consumption of ink can be suppressed by promptly stopping an image on the recording medium P that is not expected to form an image with a desired image quality in response to an abnormal conveyance state.
- the control unit 40 is forming an image on the recording medium P being conveyed before the recording medium P in which the conveyance state abnormality is detected.
- the image forming operation by the head unit 24 and the conveying operation by the image forming drum 21 are stopped. That is, since the image formation is performed as usual on the recording medium P in which the conveyance state abnormality has not occurred, the recording medium P and the ink related to the image formed on the recording medium P are not wasteful and effective. Can be output.
- the irradiation unit 26 that cures and fixes the ink that has landed on the recording medium P is provided, and the control unit 40 applies an image formed by the head unit 24 to the image formed by the head unit 24 when an abnormal conveyance state is detected by the first sensor 23. After all such ink is cured, the operation of the irradiation unit 26 is stopped. That is, since the operation is stopped after the ink related to the formed image is reliably cured, the formed image is not wasted, and the operation is not continued more than necessary, thereby reducing the power consumption, transporting and The temperature of the irradiation unit 26 having a large calorific value can be quickly reduced so that the user can respond as soon as possible after the image formation is stopped.
- the housing 200 includes a housing 200 that houses the head unit 24 and at least a portion of the transport unit (image forming drum 21) that faces the recording medium P facing the head unit 24, and separates the housing 200 from the outside.
- the door 201 is provided, and the control unit 40 enables the door 201 to be opened after the operation of the head unit 24 and the conveyance of the recording medium P by the image forming drum 21 are stopped. Therefore, when the user manually handles the recording medium P in which the conveyance state abnormality has occurred, the correspondence can be performed in a safe state.
- the control unit 40 is performed at a lower speed than when the image is formed on the image forming drum 21. Only allow the transport operation. Accordingly, it is possible to discharge the recording medium P in which the user has made a manual action so that the head unit 24 is not in contact with the recording medium P to the paper discharge unit 30, and to reduce the danger to the user at this time. I can do it.
- the temperature measurement unit 216 is provided, and the control unit 40 determines that the image forming drum 21 heated by the heater 215, in particular, the heated portion of the outer peripheral surface thereof is within the reference temperature range, as measured by the temperature measurement unit 216.
- the door 201 can be opened. Therefore, it is possible to reduce the risk of touching the high temperature part when the user manually takes out or adjusts the recording medium P.
- a notification output unit 48 that performs a predetermined notification operation is provided, and the control unit 40 causes the notification output unit 48 to perform a notification operation when a conveyance state abnormality is detected by the first sensor 23. As a result, it is possible to inform the user that a conveyance state abnormality has occurred and at least image recording on the recording medium P is stopped.
- control unit 40 varies the notification operation by the notification output unit 48 depending on whether or not the second movement operation has been performed. As a result, the user can easily know whether or not the handling of the recording medium P is necessary manually and can take appropriate measures.
- the present invention is not limited to the above-described embodiment, and various modifications can be made.
- the recording medium P is placed on the outer peripheral surface of the cylindrical image forming drum 21 to perform the transport operation.
- the transport unit is not limited to this, and an endless belt or the like is used.
- the recording medium P may be placed on a flat surface and conveyed.
- the head units 24 corresponding to the four colors of CMYK can be retracted separately, but the retracting operation may be performed integrally.
- detection of a conveyance state abnormality of the recording medium P during conveyance is not limited to a lift area above the reference height as long as the conveyance itself is performed but the conveyance state is not normal.
- the orientation of the recording medium is not correct, or the clamping state between the claw portion 211 and the outer peripheral surface of the image forming drum 21 is poor, and it is entangled with the support portion of the ink jet recording apparatus 1 while continuing the conveyance. Or the case where there is a possibility that it may be lifted and then lifted up.
- the first sensor 23 is usually provided between the delivery unit 22 and the position facing the head unit 24 after delivery of the recording medium P from the delivery unit 22 to the image forming drum 21.
- this does not prevent the provision of a plurality of head units 24 corresponding to a large number of colors of ink between the plurality of head units 24, for example.
- a plurality of first sensors 23 may be provided.
- a sensor other than a sensor using laser light may be used for at least one of the first sensor 23 and the second sensor 25.
- a sensor that detects whether or not the recording medium P is actually in contact may be used.
- a change in pressure or a change in electrical conductivity associated with the contact may be measured.
- it is desirable that the abnormality in the conveyance state does not deteriorate with this contact.
- a reflective sensor that detects reflected light from the recording medium P may be used.
- the ultraviolet curable ink is used.
- the ink is not limited to this, and any known ink may be used.
- the irradiation unit 26 and the like may be provided or deleted as necessary.
- the image forming drum 21, the head unit 24, and the irradiation unit 26 are arranged inside the housing 200 and separated from an external user by the door 201.
- Such a configuration may not be used.
- a shutter may be used, or the roof part may be opened and closed as a movable part.
- the notification operation is not limited to that performed on the spot by the notification output unit 48, and may include one in which alert information or the like is transmitted to an external device via the communication unit 49.
- the detection related to the contact between the nozzle surface and the recording medium P is performed by the second sensor 25, but the contact with other parts of the head unit 24 is detected without being limited to the nozzle surface. It may be possible.
- the orientation of the rotation axis of the image forming drum 21 and the relative positional relationship with the head unit 24 can be arbitrarily set, and the first movement operation and the second movement operation are performed in appropriate directions according to the arrangement thereof.
- the moving direction can be determined.
- the movement path (movement direction) need not be on a straight line, but may be a curved line or a broken line.
- the head unit 24 is moved with respect to the image forming drum 21, but a movement operation of the image forming drum 21 may be included.
- the first movement operation may be a retraction operation of the head unit 24, and the second movement operation may be a drawing operation of the image forming drum 21 or the like.
- an example of an inkjet recording apparatus that uses a piezoelectric element to eject ink by deformation thereof is described, but the present invention is not limited thereto.
- a thermal ink jet recording apparatus may be used.
- the specific details shown in the above-described embodiment such as the configuration of the inkjet recording apparatus 1, the control contents, and the procedure, can be changed as appropriate without departing from the spirit of the present invention.
- the present invention can be used in an ink jet recording apparatus and an ink jet recording apparatus control method.
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Abstract
Description
記録媒体を搬送する搬送部と、
前記記録媒体上にインクを吐出して画像を形成する画像形成部と、
前記画像形成部と前記搬送部とを相対移動させる移動動作部と、
搬送中の記録媒体の搬送状態異常を検出する第1検出部と、
前記記録媒体と前記画像形成部との接触に係る検出を行う第2検出部と、
画像形成に係る動作を制御する制御部と、
を備え、
前記移動動作部は、
前記画像形成部と前記記録媒体の搬送面との距離を広げるように相対移動させる第1移動動作と、
前記搬送面がより露出されるように相対移動させる第2移動動作と、
を行い、
前記制御部は、
前記第1検出部により前記記録媒体の搬送状態異常が検出された場合には、前記搬送部による搬送動作を中止させ、また、前記移動動作部に前記第1移動動作を行わせ、
前記搬送部による前記記録媒体の搬送が停止し、且つ前記第1移動動作が終了した後に、引き続いて前記第2移動動作を行う場合に当該第2移動動作の開始から終了までの間に前記画像形成部が前記記録媒体に接触しないか否かを前記第2検出部による検出の結果に基づいて判別し、
接触しないと判別された場合には、前記移動動作部に前記第2移動動作を行わせ、接触すると判別された場合には、前記移動動作部に前記第2移動動作を行わせない
ことを特徴とするインクジェット記録装置である。
前記第1検出部は、前記搬送状態異常として前記記録媒体の搬送面から当該記録媒体が所定の基準高さ以上の浮き上がりを生じている状態を検出することを特徴としている。
前記移動動作部は、前記第1移動動作時に前記画像形成部を前記記録媒体の搬送面に対して垂直な方向に移動させることを特徴としている。
前記移動動作部は、前記第2移動動作時に、前記記録媒体の搬送面に沿って当該記録媒体の前記搬送部による搬送方向と直交する幅方向に前記画像形成部を移動させることを特徴としている。
前記画像形成部は、前記記録媒体に対して当該記録媒体の前記搬送部による搬送方向と直交する幅方向に記録可能な幅に亘ってインクを吐出可能に、当該幅方向に異なる位置に各々ノズルが配列されたラインヘッドを備えることを特徴としている。
前記画像形成部は、異なる複数種類のインクに対して各々設けられ、
前記移動動作部は、前記画像形成部を各々重ならないように移動させ、
前記制御部は、当該画像形成部が各々前記第2移動動作の開始から終了までの間に前記記録媒体と接触するか否かを前記第2検出部による検出結果に基づいて判別し、接触しないと判別された前記画像形成部を前記移動動作部により前記第2移動動作させる
ことを特徴としている。
前記制御部は、前記搬送部による搬送の停止後、前記搬送動作を再開しても前記第1移動動作がなされた前記画像形成部と前記記録媒体との接触が生じないか否かを判別し、接触が生じないと判別された場合には、前記搬送部による前記搬送動作を再開させて前記記録媒体を排出させることを特徴としている。
前記制御部は、前記移動動作部が前記第2移動動作を行った後に、前記搬送部による前記搬送動作を再開させて前記記録媒体を排出させることを特徴としている。
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記搬送部に、画像記録のなされていない記録媒体を貯える記録媒体供給部から新たな記録媒体を取得させないことを特徴としている。
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合、前記搬送部による搬送動作の中止と共に、前記画像形成部による記録媒体への画像形成を中止させることを特徴としている。
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合、当該搬送状態異常が検出された記録媒体より先に搬送されている記録媒体に対して形成中の画像形成が終了するまで前記画像形成部と前記搬送部を動作させた後、当該画像形成部による画像形成動作と前記搬送部による搬送動作とを停止させることを特徴としている。
前記記録媒体上に着弾したインクを定着させる定着部を備え、
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記画像形成部により形成された画像を全て定着させた後に前記定着部の動作を停止させる
ことを特徴としている。
前記画像形成部と、前記搬送部のうち少なくとも記録媒体を前記画像形成部と対向させる部分とを内部に収めて外部と離隔させる筐体を備え、
前記筐体には、開閉部が設けられ、
前記制御部は、前記画像形成部の動作と前記搬送部による前記記録媒体の搬送が停止した後に前記開閉部を開放可能とする
ことを特徴としている。
前記制御部は、前記搬送状態異常の検出に応じて前記搬送部による前記記録媒体の搬送が停止した後に前記開閉部が開放された場合に、前記搬送部に画像形成時よりも低速でのみ搬送動作を可能とさせることを特徴としている。
温度計測部を備え、
前記制御部は、前記温度計測部の計測により所定の加熱部位が基準温度範囲内にある場合には、前記開閉部を開放可能とする
ことを特徴としている。
所定の報知動作を行う報知部を備え、
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記報知部に前記報知動作を行わせる
ことを特徴としている。
前記制御部は、前記第2移動動作がなされたか否かに応じて前記報知部による報知動作を異ならせることを特徴としている。
記録媒体を搬送する搬送部と、前記記録媒体上にインクを吐出して画像を形成する画像形成部と、前記画像形成部を移動させる移動動作部と、搬送中の記録媒体の搬送状態異常を検出する第1検出部と、前記記録媒体と前記画像形成部との接触に係る検出を行う第2検出部と、を備えるインクジェット記録装置の制御方法であって、
前記第1検出部により前記記録媒体の搬送状態異常が検出された場合には、前記搬送部による搬送動作を中止させ、また、前記移動動作部に前記画像形成部と前記記録媒体の搬送面との距離を広げる第1移動動作を行わせる検出ステップ、
前記搬送部による前記記録媒体の搬送が停止し、且つ前記第1移動動作が終了した後に、引き続いて前記搬送面がより露出させるように前記画像形成部を移動させる第2移動動作を行う場合に当該第2移動動作の開始から終了までの間に前記記録媒体が前記画像形成部に接触しないか否かを前記第2検出部による検出の結果に基づいて判別する判別ステップ、
接触しないと判別された場合には、前記移動動作部に前記第2移動動作を行わせ、接触すると判別された場合には、前記移動動作部に前記第2移動動作を行わせない移動制御ステップ、
を含むことを特徴としている。
図1は、本発明の実施形態のインクジェット記録装置1の全体構成を説明するための正面から見た模式図である。
記録媒体Pとしては、種々の厚さの印刷用紙、セル、フィルムや布帛など、画像形成ドラム21の外周面上に湾曲して担持され得る種々のものが用いられる。
フィーダーボード12は、内側が複数(例えば、2本)のローラー121、122により担持された輪状のベルト123を駆動してベルト123上の記録媒体Pを搬送する搬送機構や、給紙トレー11上に載置された最上の記録媒体Pをベルト123上に受け渡す供給部を有する。フィーダーボード12は、供給部によりベルト123上に受け渡された記録媒体Pをベルト123に沿わせるように搬送する。
上記構成のうち、画像形成ドラム21、受け渡しユニット22及びデリバリー部27により搬送部が構成される。
画像形成ドラム21は、その外周面上で記録媒体Pを担持するための爪部211及び吸気部212を備える。爪部211は、画像形成ドラム21の外周面上の所定位置に幅方向に沿って複数の爪を有し、記録媒体Pの一辺の近傍を画像形成ドラム21の外周面との間で挟持する。
吸気部212は、画像形成ドラム21の外周面に設けられた複数の吸気孔と、当該吸気孔を介して画像形成ドラム21内に気体を吸引する吸引部などを有する。吸引部としては、空気ポンプやファンなどが用いられる。吸気部212は、吸気孔からの吸気により生じる吸引力により記録媒体Pを画像形成ドラム21の外周面に沿うように担持させる。
第1移動動作では、通常生じる微小な記録媒体Pの浮き上がり、例えば、mmオーダーからcmオーダーのものに対応出来れば良いのに対し、第2移動動作では、ユーザーの視野や手の挿入位置の確保が必要となるので、第1移動動作と比較して移動距離が大きくなる。
このインクジェット記録装置1は、上述の各構成に加えて、搬送モーター214と、ヘッド駆動部241と、ヒーター215と、温度計測部216と、支持部駆動部242と、搬送制御部414と、ヒーター制御部415と、ヘッド制御部441と、支持部制御部442と、照射制御部46と、検出制御部43と、操作表示部47と、報知出力部48(報知部)、通信部49などを備える。これらの各部は、バス50により相互に接続されている。
この載置異常検出処理は、画像記録が行われる場合に画像形成ドラム21の回転動作及び記録媒体の搬送が開始されると共に開始され、画像形成ドラム21の回転停止及び記録媒体の搬送停止に伴って終了される。
なお、記録媒体Pへの画像形成の途中で画像形成動作を中止した場合、制御部40は、画像形成の再開時に途中で打ち切られた画像データに係る画像形成が再度先頭から行われるように画像データのヘッドユニット24への出力を再度先頭から行わせることが好ましい。
図7A及び図7Bは、変形例1のインクジェット記録装置1におけるヘッドユニット24の退避動作について説明する図である。これら図7A及び図7Bは、図4Aと同一の方向から見た図である。
上記実施の形態では、第2センサー25の受光量に基づいてヘッドユニット24を退避位置へ移動可能と判別された場合には、必ず移動させることとしたが、この変形例1では、ヘッドユニット24を退避位置へ移動させるまでもなく記録媒体Pを排出可能な場合には、再度搬送部を動作させて記録媒体Pの排出を行わせる。
この載置異常検出処理は、上記実施の形態で示した載置異常検出処理に対してステップS13、S14、S19、S21~S23が追加され、また、ステップS24の処理がステップS24aに置き換えられている。その他の処理は、同一であり、同一の処理には同一の符号を付して詳しい説明を省略する。
なお、制御部40は、ステップS24aの処理の後、即座に載置異常検出処理を終了せず、ユーザーの操作に応じて扉201の開放時における各部の動作制御、即ち、取得されたプリントジョブの実行禁止、操作検出部471へのユーザー操作に応じた照射部26など各部の動作禁止、及び画像形成ドラム21の回転速度(通常の画像形成時よりも低速での回転動作(搬送動作))や一回当たりの最大回転角度の制限を行わせることが出来る。
図9A及び図9Bは、インクジェット記録装置1の変形例2を示す図である。これら図9A及び図9Bは、図4Aと同一の方向から見た図である。
このインクジェット記録装置1では、ヘッドユニット24を記録媒体P(画像形成ドラム21の外周面)から離隔させる場合に、図9Aに示すように、外周面に垂直に移動させる代わりに斜めに移動させる。このようにヘッドユニット24は、支持部の構造や配置などに応じて好ましい方向へ移動させて外周面から離隔させることが出来る。
図9Cは、インクジェット記録装置1の変形例3を示す図である。この図9Cは、図4Cと同一の方向から見た図である。
このインクジェット記録装置1は、ラインヘッドを備えるヘッドユニット24の代わりに、幅方向に移動(走査)させながらインクを吐出させるスキャン方式のヘッドを備える。このようなスキャン方式のヘッドの場合、記録媒体Pを露出させるように退避させる際に当該ヘッドを幅方向に移動させると、記録媒体Pの搬送が停止した時点では記録媒体Pが接触していなくても、退避動作の途中で接触する場合がある。インクジェット記録装置1では、このような場合にもヘッドユニット24の退避動作を行わせない。
支持部駆動部243は、ヘッドユニット24と記録媒体Pの搬送面との距離を広げるようにヘッドユニット24を移動させる第1移動動作と、搬送面がより露出されるようにヘッドユニット24を移動させる第2移動動作と、を行う。制御部40は、第1センサー23により記録媒体Pの浮き上がりが検出された場合には、搬送部(画像形成ドラム21)による搬送動作を中止させ、また、支持部駆動部243に第1移動動作を行わせ、画像形成ドラム21による記録媒体Pの搬送が停止し、且つ第1移動動作が終了した後に、引き続いて第2移動動作を行う場合に当該第2移動動作の開始から終了までの間にヘッドユニット24が記録媒体Pに接触しないか否かを第2センサー25による検出の結果に基づいて判別し、接触しないと判別された場合には、支持部駆動部243に第2移動動作を行わせ、接触すると判別された場合には、支持部駆動部243に第2移動動作を行わせない。
即ち、第1移動動作の後、記録媒体Pがヘッドユニット24に接触したり更には絡まったりして問題を生じさせない場合にのみ、第2移動動作を行わせるので、ヘッドユニット24を退避させるはずが却ってヘッドユニット24のノズル面に傷をつけるといった問題を生じさせない。従って、搬送状態に異常を生じている記録媒体Pの状態に応じた適切なヘッドユニット24(即ち、記録ヘッド)の退避が可能となる。
また、このように退避を異なる二回の動作に分けて行うことで、退避に必要なスペースを従来よりも効率良く定め、また、記録媒体Pを避けるための動作と記録媒体Pを露出させるための動作といった異なる目的に応じて各々適した移動方向や移動距離を設定することが出来る。
従って、記録媒体Pがヘッドユニット24のノズル面に接触したり、ヘッドユニット24や他の構成に引っかかってジャムが生じたりする可能性を容易に取得することが出来る。
なお、ラインヘッドにおけるノズル開口部の配列は、一次元であっても二次元であっても良く、また、一次元配列方向や二次元配列の軸の一つの方向は、幅方向に平行でなくても良い。
このように安全に移動可能なヘッドユニット24だけを移動させて移動させられないヘッドユニット24の周辺の搬送面及び記録媒体Pを露出させることで、ユーザーに手動での対応をさせやすくすることが出来る。
例えば、上記実施の形態では、円筒状の画像形成ドラム21の外周面に記録媒体Pを載置して搬送動作を行わせたが、搬送部は、これに限られず、無端状ベルトなどを用いて平面上に記録媒体Pを載置し、搬送する形態であっても良い。
その他、インクジェット記録装置1の構成、制御内容や手順など、上記実施の形態で示した具体的な細部は、本発明の趣旨を逸脱しない範囲において適宜変更可能である。
10 給紙部
11 給紙トレー
12 フィーダーボード
121、122 ローラー
123 ベルト
20 画像形成本体部
200 筐体
201 扉
21 画像形成ドラム
211 爪部
212 吸気部
214 搬送モーター
215 ヒーター
216 温度計測部
22 受け渡しユニット
221 スイングアーム部
222 受け渡しドラム
23 第1センサー
231 発光器
232 受光器
24 ヘッドユニット
241 ヘッド駆動部
242 支持部駆動部
25 第2センサー
251 発光器
252 受光器
26 照射部
27 デリバリー部
271 受け渡しローラー
272、273 ローラー
274 ベルト
28 回転計測部
30 排紙部
40 制御部
401 CPU
402 RAM
403 記憶部
403a プログラム
43 検出制御部
46 照射制御部
47 操作表示部
48 報知出力部
49 通信部
50 バス
414 搬送制御部
415 ヒーター制御部
441 ヘッド制御部
442 支持部制御部
471 操作検出部
472 表示部
F 浮き上がり領域
P 記録媒体
Claims (18)
- 記録媒体を搬送する搬送部と、
前記記録媒体上にインクを吐出して画像を形成する画像形成部と、
前記画像形成部と前記搬送部とを相対移動させる移動動作部と、
搬送中の記録媒体の搬送状態異常を検出する第1検出部と、
前記記録媒体と前記画像形成部との接触に係る検出を行う第2検出部と、
画像形成に係る動作を制御する制御部と、
を備え、
前記移動動作部は、
前記画像形成部と前記記録媒体の搬送面との距離を広げるように相対移動させる第1移動動作と、
前記搬送面がより露出されるように相対移動させる第2移動動作と、
を行い、
前記制御部は、
前記第1検出部により前記記録媒体の搬送状態異常が検出された場合には、前記搬送部による搬送動作を中止させ、また、前記移動動作部に前記第1移動動作を行わせ、
前記搬送部による前記記録媒体の搬送が停止し、且つ前記第1移動動作が終了した後に、引き続いて前記第2移動動作を行う場合に当該第2移動動作の開始から終了までの間に前記画像形成部が前記記録媒体に接触しないか否かを前記第2検出部による検出の結果に基づいて判別し、
接触しないと判別された場合には、前記移動動作部に前記第2移動動作を行わせ、接触すると判別された場合には、前記移動動作部に前記第2移動動作を行わせない
ことを特徴とするインクジェット記録装置。 - 前記第1検出部は、前記搬送状態異常として前記記録媒体の搬送面から当該記録媒体が所定の基準高さ以上の浮き上がりを生じている状態を検出することを特徴とする請求項1記載のインクジェット記録装置。
- 前記移動動作部は、前記第1移動動作時に前記画像形成部を前記記録媒体の搬送面に対して垂直な方向に移動させることを特徴とする請求項1又は2記載のインクジェット記録装置。
- 前記移動動作部は、前記第2移動動作時に、前記記録媒体の搬送面に沿って当該記録媒体の前記搬送部による搬送方向と直交する幅方向に前記画像形成部を移動させることを特徴とする請求項1~3の何れか一項に記載のインクジェット記録装置。
- 前記画像形成部は、前記記録媒体に対して当該記録媒体の前記搬送部による搬送方向と直交する幅方向に記録可能な幅に亘ってインクを吐出可能に、当該幅方向に異なる位置に各々ノズルが配列されたラインヘッドを備えることを特徴とする請求項1~4の何れか一項に記載のインクジェット記録装置。
- 前記画像形成部は、異なる複数種類のインクに対して各々設けられ、
前記移動動作部は、前記画像形成部を各々重ならないように移動させ、
前記制御部は、当該画像形成部が各々前記第2移動動作の開始から終了までの間に前記記録媒体と接触するか否かを前記第2検出部による検出結果に基づいて判別し、接触しないと判別された前記画像形成部を前記移動動作部により前記第2移動動作させる
ことを特徴とする請求項1~5の何れか一項に記載のインクジェット記録装置。 - 前記制御部は、前記搬送部による搬送の停止後、前記搬送動作を再開しても前記第1移動動作がなされた前記画像形成部と前記記録媒体との接触が生じないか否かを判別し、接触が生じないと判別された場合には、前記搬送部による前記搬送動作を再開させて前記記録媒体を排出させることを特徴とする請求項1~6の何れか一項に記載のインクジェット記録装置。
- 前記制御部は、前記移動動作部が前記第2移動動作を行った後に、前記搬送部による前記搬送動作を再開させて前記記録媒体を排出させることを特徴とする請求項1~7の何れか一項に記載のインクジェット記録装置。
- 前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記搬送部に、画像記録のなされていない記録媒体を貯える記録媒体供給部から新たな記録媒体を取得させないことを特徴とする請求項1~8の何れか一項に記載のインクジェット記録装置。
- 前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合、前記搬送部による搬送動作の中止と共に、前記画像形成部による記録媒体への画像形成を中止させることを特徴とする請求項1~9の何れか一項に記載のインクジェット記録装置。
- 前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合、当該搬送状態異常が検出された記録媒体より先に搬送されている記録媒体に対して形成中の画像形成が終了するまで前記画像形成部と前記搬送部を動作させた後、当該画像形成部による画像形成動作と前記搬送部による搬送動作とを停止させることを特徴とする請求項10記載のインクジェット記録装置。
- 前記記録媒体上に着弾したインクを定着させる定着部を備え、
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記画像形成部により形成された画像を全て定着させた後に前記定着部の動作を停止させる
ことを特徴とする請求項1~11の何れか一項に記載のインクジェット記録装置。 - 前記画像形成部と、前記搬送部のうち少なくとも記録媒体を前記画像形成部と対向させる部分とを内部に収めて外部と離隔させる筐体を備え、
前記筐体には、開閉部が設けられ、
前記制御部は、前記画像形成部の動作と前記搬送部による前記記録媒体の搬送が停止した後に前記開閉部を開放可能とする
ことを特徴とする請求項1~12の何れか一項に記載のインクジェット記録装置。 - 前記制御部は、前記搬送状態異常の検出に応じて前記搬送部による前記記録媒体の搬送が停止した後に前記開閉部が開放された場合に、前記搬送部に画像形成時よりも低速でのみ搬送動作を可能とさせることを特徴とする請求項13記載のインクジェット記録装置。
- 温度計測部を備え、
前記制御部は、前記温度計測部の計測により所定の加熱部位が基準温度範囲内にある場合には、前記開閉部を開放可能とする
ことを特徴とする請求項13又は14記載のインクジェット記録装置。 - 所定の報知動作を行う報知部を備え、
前記制御部は、前記第1検出部により前記搬送状態異常が検出された場合には、前記報知部に前記報知動作を行わせる
ことを特徴とする請求項1~15の何れか一項に記載のインクジェット記録装置。 - 前記制御部は、前記第2移動動作がなされたか否かに応じて前記報知部による報知動作を異ならせることを特徴とする請求項16記載のインクジェット記録装置。
- 記録媒体を搬送する搬送部と、前記記録媒体上にインクを吐出して画像を形成する画像形成部と、前記画像形成部を移動させる移動動作部と、搬送中の記録媒体の搬送状態異常を検出する第1検出部と、前記記録媒体と前記画像形成部との接触に係る検出を行う第2検出部と、を備えるインクジェット記録装置の制御方法であって、
前記第1検出部により前記記録媒体の搬送状態異常が検出された場合には、前記搬送部による搬送動作を中止させ、また、前記移動動作部に前記画像形成部と前記記録媒体の搬送面との距離を広げる第1移動動作を行わせる検出ステップ、
前記搬送部による前記記録媒体の搬送が停止し、且つ前記第1移動動作が終了した後に、引き続いて前記搬送面がより露出させるように前記画像形成部を移動させる第2移動動作を行う場合に当該第2移動動作の開始から終了までの間に前記記録媒体が前記画像形成部に接触しないか否かを前記第2検出部による検出の結果に基づいて判別する判別ステップ、
接触しないと判別された場合には、前記移動動作部に前記第2移動動作を行わせ、接触すると判別された場合には、前記移動動作部に前記第2移動動作を行わせない移動制御ステップ、
を含むことを特徴とするインクジェット記録装置の制御方法。
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Publication number | Priority date | Publication date | Assignee | Title |
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US10300697B2 (en) * | 2015-10-01 | 2019-05-28 | Konica Minolta, Inc. | Inkjet recording device and inkjet recording method |
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US11845624B2 (en) * | 2020-11-24 | 2023-12-19 | Ricoh Company, Ltd. | Conveying device and liquid discharge apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939221A (ja) * | 1995-08-03 | 1997-02-10 | Copyer Co Ltd | インク式記録装置 |
JP2007144633A (ja) * | 2005-11-24 | 2007-06-14 | Ricoh Co Ltd | インクジェット記録装置 |
JP2010149307A (ja) * | 2008-12-24 | 2010-07-08 | Brother Ind Ltd | インクジェット記録装置 |
JP2010173812A (ja) * | 2009-01-30 | 2010-08-12 | Brother Ind Ltd | インクジェット記録装置 |
JP2012051282A (ja) * | 2010-09-02 | 2012-03-15 | Ricoh Co Ltd | 画像形成装置及びプログラム |
JP2013071437A (ja) * | 2011-09-29 | 2013-04-22 | Kyocera Document Solutions Inc | インクジェット記録装置、インクジェット記録装置における記録媒体離脱方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6666537B1 (en) * | 2002-07-12 | 2003-12-23 | Hewlett-Packard Development Company, L.P. | Pen to paper spacing for inkjet printing |
JP5283483B2 (ja) | 2008-11-06 | 2013-09-04 | 富士フイルム株式会社 | 画像形成装置 |
JP5489926B2 (ja) * | 2010-08-31 | 2014-05-14 | 富士フイルム株式会社 | 記録媒体浮き検出装置及びインクジェット記録装置 |
EP2447084B1 (en) | 2010-10-29 | 2013-06-05 | Brother Kogyo Kabushiki Kaisha | Liquid ejection apparatus |
JP5512557B2 (ja) | 2011-01-11 | 2014-06-04 | 富士フイルム株式会社 | 画像形成装置 |
JP5306498B2 (ja) * | 2011-02-25 | 2013-10-02 | 富士フイルム株式会社 | 画像形成装置 |
EP3051501B1 (en) * | 2011-07-29 | 2018-12-05 | Nidec Sankyo Corporation | Processing device for medium and control method for processing device for medium |
JP5862182B2 (ja) * | 2011-10-12 | 2016-02-16 | 株式会社リコー | 画像形成装置 |
JP5817466B2 (ja) * | 2011-11-24 | 2015-11-18 | セイコーエプソン株式会社 | 画像記録装置、画像記録方法 |
JP5456087B2 (ja) * | 2012-02-20 | 2014-03-26 | 富士フイルム株式会社 | 画像形成装置 |
JP2013220588A (ja) * | 2012-04-17 | 2013-10-28 | Seiko Epson Corp | 記録装置、記録装置の制御方法、及び、プログラム |
JP2014006370A (ja) * | 2012-06-25 | 2014-01-16 | Fuji Xerox Co Ltd | 画像形成装置 |
JP5754435B2 (ja) * | 2012-11-14 | 2015-07-29 | コニカミノルタ株式会社 | 画像形成装置 |
US8824028B2 (en) * | 2012-11-30 | 2014-09-02 | Kyocera Document Solutions Inc. | Image reading apparatus and image forming apparatus |
-
2016
- 2016-04-12 EP EP16783053.8A patent/EP3287285B1/en active Active
- 2016-04-12 JP JP2017514078A patent/JP6627868B2/ja active Active
- 2016-04-12 WO PCT/JP2016/061755 patent/WO2016171032A1/ja active Application Filing
- 2016-04-12 US US15/568,214 patent/US10201991B2/en active Active
- 2016-04-12 CN CN201680028409.1A patent/CN107614267B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939221A (ja) * | 1995-08-03 | 1997-02-10 | Copyer Co Ltd | インク式記録装置 |
JP2007144633A (ja) * | 2005-11-24 | 2007-06-14 | Ricoh Co Ltd | インクジェット記録装置 |
JP2010149307A (ja) * | 2008-12-24 | 2010-07-08 | Brother Ind Ltd | インクジェット記録装置 |
JP2010173812A (ja) * | 2009-01-30 | 2010-08-12 | Brother Ind Ltd | インクジェット記録装置 |
JP2012051282A (ja) * | 2010-09-02 | 2012-03-15 | Ricoh Co Ltd | 画像形成装置及びプログラム |
JP2013071437A (ja) * | 2011-09-29 | 2013-04-22 | Kyocera Document Solutions Inc | インクジェット記録装置、インクジェット記録装置における記録媒体離脱方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021112858A (ja) * | 2020-01-17 | 2021-08-05 | 株式会社リコー | 画像形成装置 |
JP7447498B2 (ja) | 2020-01-17 | 2024-03-12 | 株式会社リコー | 画像形成装置 |
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