WO2021205848A1 - Inkjet recording device - Google Patents

Inkjet recording device Download PDF

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Publication number
WO2021205848A1
WO2021205848A1 PCT/JP2021/011442 JP2021011442W WO2021205848A1 WO 2021205848 A1 WO2021205848 A1 WO 2021205848A1 JP 2021011442 W JP2021011442 W JP 2021011442W WO 2021205848 A1 WO2021205848 A1 WO 2021205848A1
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WO
WIPO (PCT)
Prior art keywords
unit
recording medium
voltage
inkjet recording
drying
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Application number
PCT/JP2021/011442
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French (fr)
Japanese (ja)
Inventor
航 白井
Original Assignee
京セラドキュメントソリューションズ株式会社
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Publication of WO2021205848A1 publication Critical patent/WO2021205848A1/en

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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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet

Definitions

  • the present invention relates to an inkjet recording device.
  • the inkjet recording device forms an image on a recording medium with the ink ejected by the inkjet head.
  • ink is ejected onto the recording medium, so if the recording medium passes through the transport roller before the ink dries, the transport roller may be soiled by the ink.
  • the ease with which the ink ejected onto the recording medium dries depends on the type of recording medium. Therefore, if the ink is dried regardless of the type of recording medium, wasteful power may be consumed.
  • an object of the present invention is to provide an inkjet recording device capable of suppressing wasteful power consumption.
  • the inkjet recording device includes an ultrasonic sensor, a discrimination unit, an image forming unit, a drying unit, and a voltage control unit.
  • the ultrasonic sensor transmits / receives ultrasonic waves to a recording medium.
  • the discriminating unit discriminates the type of the recording medium.
  • the image forming unit ejects ink onto the recording medium.
  • the drying unit dries the ink ejected onto the recording medium.
  • the voltage control unit controls the voltage supplied to the drying unit based on the type of the recording medium.
  • the speed at which the drying unit dries the ink can be appropriately controlled according to the type of recording medium, so that wasteful power consumption can be suppressed.
  • FIG. 1 It is a figure which shows the structure of the inkjet recording apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the inkjet recording apparatus which concerns on Embodiment 1.
  • FIG. It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1.
  • FIG. It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1.
  • FIG. It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1.
  • FIG. 2 shows the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 2.
  • Embodiment 1 of the present invention will be described with reference to the drawings.
  • the same or corresponding parts are designated by the same reference numerals and the description is not repeated.
  • the X-axis and the Y-axis are parallel to the horizontal plane
  • the Z-axis is parallel to the vertical line.
  • FIG. 1 is a diagram showing an example of the configuration of the inkjet recording device 600.
  • the first embodiment can be applied to all the embodiments of the present application.
  • the inkjet recording device 600 includes an apparatus housing 100, a feeding unit 200, an inkjet recording type image forming unit 300, a conveying unit 400, and an discharging unit 500.
  • the device housing 100 includes a feeding unit 200, an image forming unit 300, a conveying unit 400, and a discharging unit 500. A part of the discharge unit 500 is exposed from the device housing 100.
  • the feeding unit 200 is arranged below the inside of the device housing 100.
  • the image forming unit 300 is arranged above the feeding unit 200.
  • the transport unit 400 is arranged on one side of the image forming unit 300.
  • the discharge unit 500 is arranged on the other side of the image forming unit 300.
  • the feeding unit 200 includes a paper feed cassette 201 that can be attached to and detached from the device housing 100, a paper feed roller 202, and a guide plate 203.
  • the paper feed roller 202 is arranged above one end side of the paper feed cassette 201.
  • the guide plate 203 is arranged between the paper feed roller 202 and the transport unit 400.
  • the feeding unit 200 feeds the recording medium P of the paper cassette 201 toward the image forming unit 300, which will be described later.
  • a plurality of recording media P are stored in a stacked state in the paper feed cassette 201.
  • the paper feed roller 202 takes out the recording media P in the paper feed cassette 201 one by one.
  • the guide plate 203 guides the recording medium P taken out by the paper feed roller 202 to the transport unit 400.
  • the transport unit 400 includes a substantially C-shaped paper transport path 401, a transport roller pair 402, a resist roller pair 403, and a guide plate 404.
  • the transport roller pair 402 is provided on the inlet side of the paper transport path 401.
  • the resist roller pair 403 is provided on the outlet side of the paper transport path 401.
  • the guide plate 404 is arranged between the resist roller pair 403 and the image forming unit 300.
  • the transport roller pair 402 sandwiches the recording medium P to be fed from the feeding unit 200 and sends it to the paper transport path 401.
  • the resist roller pair 403 corrects the skew of the recording medium P supplied from the paper transport path 401. Then, the resist roller pair 403 temporarily waits for the recording medium P in order to synchronize the printing timing with the transfer of the recording medium P, and then sends the recording medium P to the guide plate 404 in accordance with the printing timing.
  • the guide plate 404 guides the recording medium P sent out by the resist roller pair 403 to the image forming unit 300.
  • the image forming unit 300 includes a recording unit 310, a transport unit 320, an ultrasonic sensor 180, and a drying unit 330.
  • the recording unit 310 includes a head assembly 312 and a tank unit 316.
  • the head assembly 312 is composed of four-color recording heads 312K, 312C, 312M, and 312Y arranged side by side from the upstream side to the downstream side in the transport direction of the recording medium P.
  • Each of the recording heads 312K, 312C, 312M, and 312Y includes a plurality of nozzles arranged in the X-axis direction.
  • the head assembly 312 is referred to as a line type.
  • the line-type head assembly 312 is fixed to the device housing 100.
  • the tank unit 316 is composed of four color ink tanks 316K, 316C, 316M, and 316Y arranged side by side from the upstream side to the downstream side in the transport direction of the recording medium P.
  • Each of the recording heads 312K, 312C, 312M, and 312Y communicates with each of the corresponding color ink tanks 316K, 316C, 316M, and 316Y via individual ink supply pumps (not shown).
  • the transport unit 320 includes a support roller 321, a drive roller 322, a pair of tension rollers 323, a transport belt 324, and a suction unit (not shown).
  • the transport belt 324 has an endless shape and is stretched so as to surround the support roller 321 and the drive roller 322 and the tension roller 323.
  • the transport belt 324 is perforated with a plurality of through holes (not shown) penetrating in the thickness direction.
  • suction means such as a fan and a vacuum pump are arranged inside the suction unit.
  • suction means When the suction means is driven, a negative pressure is generated inside the suction unit.
  • the negative pressure acts on the recording medium P supported on one surface of the transfer belt 324 through the plurality of through holes of the transfer belt 324, and the recording medium P is sucked onto the transfer belt 324.
  • the drive rollers 322 are arranged at intervals in the paper transport direction with respect to the support rollers 321.
  • the drive roller 322 rotates the transport belt 324 in the first direction, which is the transport direction of the recording medium P, and in the second direction opposite to the first direction.
  • the tension roller 323 is arranged below between the support roller 321 and the drive roller 322 to apply tension to the transport belt 324.
  • the head assembly 312 ejects ink to the recording medium P conveyed by the transfer belt 324 to form an image on the recording medium P.
  • the ultrasonic sensor 180 has a transmitting unit 180a and a receiving unit 180b.
  • the ultrasonic sensor 180 transmits ultrasonic waves S to the recording medium P and receives reflected waves S or transmitted waves S.
  • the transmission unit 180a transmits ultrasonic waves S to the recording medium P.
  • the receiving unit 180b may be arranged on the same side as the transmitting unit 180a with respect to the transport path of the recording medium P.
  • the receiving unit 180b may be arranged on the side opposite to the transmitting unit 180a with respect to the transport path of the recording medium P.
  • the receiving unit 180b When the receiving unit 180b is arranged on the same side as the transmitting unit 180a, the receiving unit 180b receives the reflected wave S reflected by the ultrasonic wave S on the recording medium P. When the receiving unit 180b is arranged on the opposite side of the transmitting unit 180a, the ultrasonic wave S receives the transmitted wave S transmitted through the recording medium P.
  • the ultrasonic sensor 180 may be arranged on the upstream side of the recording medium P in the transport direction with respect to the recording unit 310.
  • the ultrasonic sensor 180 may be arranged on the downstream side of the recording medium P in the transport direction with respect to the recording unit 310 and on the upstream side of the recording medium P in the transport direction with respect to the drying unit 330.
  • the drying unit 330 includes a guide plate 334.
  • the drying unit 330 blows an air flow to the recording medium P to dry the ink ejected from the head assembly 312 onto the recording medium P.
  • the guide plate 334 guides the recording medium P sent by the transport unit 320 to the discharge unit 500.
  • the discharge unit 500 includes a discharge roller pair 501 and a discharge tray 502.
  • the discharge tray 502 is fixed to the device housing 100 so as to project outward from the discharge port 101 formed in the device housing 100.
  • the recording medium P that has passed through the drying section 330 is transferred in the direction of the discharge port 101 by the discharge roller pair 501, guided by the discharge tray 502, and discharged to the outside of the apparatus housing 100 via the discharge port 101.
  • the discharge roller pair 501 corresponds to an example of a "roller portion".
  • FIG. 2 is a block diagram showing the configuration of the inkjet recording device 600.
  • the first embodiment can be applied to all the embodiments of the present application.
  • the inkjet recording device 600 includes an ultrasonic sensor 180, a control unit 150, a drying unit 330, a feeding unit 200, a transport unit 400, an image forming unit 300, and a discharging unit 500. And.
  • the ultrasonic sensor 180 includes an ultrasonic sensor 180, a control unit 150, a drying unit 330, a feeding unit 200, a transport unit 400, an image forming unit 300, and a discharging unit 500.
  • the ultrasonic sensor 180 transmits and receives ultrasonic waves S. This is to determine the thickness T of the recording medium P or the material of the recording medium P.
  • the ultrasonic sensor 180 includes a transmitting unit 180a and a receiving unit 180b.
  • the transmission unit 180a transmits ultrasonic waves S.
  • An example of the transmitter 180a is a transducer.
  • the receiving unit 180b receives the ultrasonic wave S.
  • An example of the receiving unit 180b is a transducer.
  • the receiving unit 180b receives the transmitted wave S transmitted through the recording medium P.
  • the receiving unit 180b receives the reflected wave S reflected by the recording medium P.
  • the reception level of the ultrasonic wave S indicates the thickness T of the recording medium P.
  • the reception level of ultrasonic wave S indicates the material of the recording medium P.
  • the control unit 150 controls the driving of each component of the inkjet recording device 600. As shown in FIG. 2, the control unit 150 includes a discrimination unit 511 and a voltage control unit 512. Specifically, when the control unit 150 executes a control program stored in a storage unit (not shown), the control unit 150 functions as a discrimination unit 511 and a voltage control unit 512.
  • control unit 150 includes a processor such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit). Then, the processor of the control unit 150 controls the operation of each unit of the inkjet recording device 600 by executing a computer program stored in a storage unit (not shown).
  • the control unit 150 may be realized by an electronic circuit.
  • the discrimination unit 511 discriminates the type of the recording medium P. Specifically, the discrimination unit 511 discriminates the type of the recording medium P based on the ultrasonic wave S transmitted by the ultrasonic sensor 180 and the received reflected wave S or transmitted wave S. Specifically, the type indicates the thickness T of the recording medium P and the material of the recording medium P.
  • the speed at which the drying unit 330 dries the ink can be appropriately controlled according to the type of the recording medium P, wasteful power consumption can be suppressed.
  • the image forming unit 300 ejects ink onto the recording medium P.
  • the drying unit 330 dries the ink ejected to the recording medium P.
  • the drying unit 330 includes a fan unit 75 and a heater unit 73.
  • the heater unit 73 serves as a heat source.
  • the fan unit 75 generates an air flow toward the recording medium P.
  • the fan unit 75 blows the heat generated by the heater unit 73 toward the recording medium P.
  • the voltage control unit 512 controls the voltage V applied to the drying unit 330. Specifically, the voltage control unit 512 controls the voltage V applied to the fan unit 75.
  • the air flow rate generated by the fan unit 75 can be appropriately controlled according to the type of the recording medium P, wasteful power consumption can be suppressed.
  • the voltage control unit 512 controls the voltage V applied to the heater unit 73.
  • the heat generated from the heater unit 73 can be appropriately controlled, so that wasteful power consumption can be suppressed. .. Specifically, as will be described later, when the recording medium P is the thin paper P1, the voltage V applied to the heater unit 73 can be suppressed as compared with the case where the recording medium P is the thick paper P2.
  • the discharge roller pair 501 conveys the recording medium P on which the ink is ejected.
  • the drying section 330 is arranged on the upstream side of the recording medium P in the transport direction with respect to the discharge roller pair 501.
  • the ink ejected to the recording medium P can be suitably dried before the discharge roller pair 501 conveys the recording medium P.
  • FIGS. 3A, 3B, and 3C are diagrams for explaining the ultrasonic sensor 180 of the inkjet recording apparatus 600 according to the first embodiment. 3A, 3B, and 3C can be applied when the recording medium P is paper.
  • FIG. 3A shows the configuration of the ultrasonic sensor 180 when the recording medium P is a thin paper P1.
  • the transmission unit 180a is arranged on the front surface side of the thin paper P1.
  • the receiving unit 180b is arranged on the back surface side of the thin paper P1. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on opposite sides of the transport path of the thin paper P1.
  • FIG. 3B shows the configuration of the ultrasonic sensor 180 when the recording medium P is thick paper P2.
  • the transmitting portion 180a is arranged on the front surface side of the thick paper P2.
  • the receiving unit 180b is arranged on the back surface side of the thick paper P2. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on opposite sides of the transport path of the thick paper P2.
  • the intensity of the ultrasonic wave S is represented by the thickness of the arrow.
  • the intensity of the ultrasonic wave S1 is attenuated by passing through the recording medium P, and becomes a transmitted wave S2. As shown in FIG. 3A, the transmitted wave S2 is received by the receiving unit 180b.
  • the discrimination unit 511 discriminates the type of the recording medium P based on the voltage V1 of the transmitted wave S2 received by the reception unit 180b. That is, the determination unit 511 determines that the recording medium P is a thin paper P1 having a thickness T1.
  • the intensity of the ultrasonic wave S1 is attenuated by passing through the recording medium P, and becomes a transmitted wave S3. As shown in FIG. 3B, the transmitted wave S3 is received by the receiving unit 180b.
  • the voltage V2 (intensity) of the transmitted wave S3 is even smaller than the voltage V1 shown in FIG. 3C.
  • the discrimination unit 511 discriminates the type of the recording medium P based on the voltage V2 of the transmitted wave S3 received by the reception unit 180b. That is, the determination unit 511 determines that the recording medium P is a thick paper P2 having a thickness of T2 (> T1).
  • the discriminating unit 511 can discriminate whether the type of the recording medium P is the thin paper P1 or the thick paper P2 based on the voltage of the transmitted wave received by the receiving unit 180b.
  • FIGS. 4A, 4B, and 4C are diagrams for explaining the ultrasonic sensor 180 of the inkjet recording apparatus 600 according to the second embodiment.
  • the second embodiment can be applied to all the embodiments.
  • FIG. 4A shows the configuration of the ultrasonic sensor 180.
  • the transmission unit 180a is arranged on the surface side of the recording medium P.
  • the receiving unit 180b is arranged on the surface side of the recording medium P. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on the same side with respect to the transport path of the recording medium P.
  • the ultrasonic wave S1 is not reflected while the recording medium P is not transported to the transport path. Therefore, as shown in FIG. 4A, the ultrasonic wave S4 is not received by the receiving unit 180b.
  • the discrimination unit 511 discriminates the type of the recording medium P based on the voltage V of the reflected wave S5 received by the reception unit 180b.
  • FIG. 5 is a diagram showing a drying portion 330 of the inkjet recording apparatus 600 according to the third embodiment.
  • Embodiment 3 can be applied to all embodiments of the present application.
  • the drying unit 330 includes a heater unit 73, a fan unit 75, and a housing 77.
  • the housing 77 is a cylindrical member having a hot air outlet, and houses a heater portion 73 and a fan portion 75.
  • the heater unit 73 has a ceramic heater 79 as a heat source and fins 81 provided around the ceramic heater 79.
  • the heater portion 73 is arranged on the downstream side of the fan portion 75 in the blowing direction.
  • the drying unit 330 is heated by passing the airflow blown from the fan unit 75 through the heater unit 73 to generate warm air.
  • the guide plate 334 includes a first guide plate 85 and a second guide plate 87.
  • the first guide plate 85 is arranged on the side of the drying portion 330, and the second guide plate 87 faces the first guide plate 85 with a gap through which the recording medium P can pass from the first guide plate 85. There is.
  • Each of the first guide plate 85 and the second guide plate 87 has a rectangular shape.
  • the first guide plate 85 has a hot air intake 85a from the drying portion 330.
  • the second guide plate 87 has an opening 87a at a position facing the intake 85a. The warm air is blown onto the printing surface of the recording medium P through the intake port 85a.
  • the ink ejected to the recording medium P is suitably dried by the drying unit 330.
  • 6A and 6B are diagrams showing changes in the voltage V controlled by the voltage control unit 512 of the inkjet recording apparatus 600 according to the fourth embodiment.
  • FIG. 7 is a diagram showing a change in the voltage V controlled by the voltage control unit 512 of the inkjet recording apparatus 600 according to the fourth embodiment.
  • Embodiment 4 can be applied to all embodiments of the present application.
  • the voltage control unit 512 controls the voltage V supplied to the drying unit 330 based on the type of the recording medium P. That is, the voltage control unit 512 controls the voltage V applied to the fan unit 75. The voltage control unit 512 controls the voltage V applied to the heater unit 73.
  • FIG. 6A shows an embodiment in which the voltage VF1 applied to the fan unit 75 is kept constant and the voltage VH applied to the heater unit 73 is changed when the recording medium P is paper.
  • the thin paper P1 has a small amount of ink soaked in and is easy to dry, whereas the thick paper P2 has a large amount of ink soaked in and is difficult to dry.
  • the voltage control unit 512 applies the voltage of the voltage VH1 to the heater unit 73.
  • the voltage control unit 512 applies the voltage of the voltage VH2 to the heater unit 73 in order to quickly dry the ink of the thick paper P2.
  • the voltage VH2 is larger than the voltage VH1.
  • FIG. 6B shows an embodiment in which the voltage VH3 applied to the heater unit 73 is kept constant and the voltage VF applied to the fan unit 75 is changed.
  • the voltage control unit 512 applies the voltage of the voltage VF2 to the fan unit 75.
  • the voltage control unit 512 applies the voltage of the voltage VF3 to the fan unit 75 in order to quickly dry the ink of the thick paper P2.
  • the voltage VH3 is larger than the voltage VH2.
  • FIG. 7 shows an embodiment in which the application of the voltage to the heater unit 73 is stopped and the voltage is applied to the fan unit 75 when the recording medium P is the OHP sheet P3.
  • the OHP sheet P3 is made of resin, it is difficult for ink to soak into it and it is difficult for it to dry. Further, the transparency P3 is sensitive to heat.
  • the voltage control unit 512 stops applying the voltage to the heater unit 73 and immediately dries the ink of the OHP sheet P3.
  • the voltage of the voltage VF4 is applied to the fan unit 75 in order to make the fan unit 75. For example, by using the optical sensor in the ink non-ejection region together with the ultrasonic sensor, it may be determined that the type of the recording medium P is the OHP sheet P3.
  • the voltage control unit 512 can apply a voltage to or stop the heater unit 73 according to the type of the recording medium P.
  • the voltage control unit 512 can control the voltage VF4 applied to the fan unit 75 according to the type of the recording medium P.
  • FIG. 8 is a diagram showing a drying portion 330 of the inkjet recording apparatus 600 according to the fifth embodiment.
  • Embodiment 5 can be applied to all embodiments of the present application.
  • the drying portion 330 includes a drying portion 330a and a drying portion 330b.
  • the drying portion 330 may be a single drying portion 330.
  • the discharge roller pair 501 includes a discharge roller pair 501a and a discharge roller pair 501b.
  • the discharge roller pair 501 may be a single discharge roller pair 501.
  • the recording medium P on which the ink is ejected by the recording unit 310 may be conveyed by the discharge roller pair 501 while the ink is not dried. Therefore, the ink may stain the discharge roller pair 501.
  • the drying unit 330 should be able to dry at least the ink in the shaded area where the discharge roller pair 501 contacts the recording medium P.
  • the drying unit 330 is arranged on the upstream side of the recording medium P in the transport direction with respect to the discharge roller pair 501.
  • the discharge roller pair 501 is in contact with the recording medium P at a length L1 in the main scanning direction.
  • the airflow blown from the drying portion 330 blows on the ink in the area A of the recording medium P. It is preferable that the width L2 of the area A in the main scanning direction is equal to or larger than the length L1 of the discharge roller pair 501 in the main scanning direction.
  • the drying unit 330 can suitably dry the ink ejected to the recording medium P before the discharge roller pair 501 conveys the recording medium P.
  • FIG. 9 is a flowchart showing an example of the operation of the control unit 150. As shown in FIG. 9, the process includes steps S10 to S24. Specifically, it is as follows.
  • step S10 the feeding unit 200 feeds the recording medium P.
  • step S12 the feeding unit 200 feeds the recording medium P. The process proceeds to step S12.
  • step S12 the transport unit 400 transports the recording medium P.
  • the process proceeds to step S14.
  • step S14 the image forming unit 300 ejects ink to the recording medium P.
  • the process proceeds to step S16.
  • step S16 the transmitting unit 180a transmits the ultrasonic wave S.
  • step S18 the transmitting unit 180a transmits the ultrasonic wave S.
  • step S18 the receiving unit 180b receives the transmitted wave S transmitted through the recording medium P.
  • the receiving unit 180b receives the reflected wave S reflected from the recording medium P. The process proceeds to step S20.
  • step S20 the discrimination unit 511 determines the type of the recording medium P. The process proceeds to step S22.
  • step S22 the voltage control unit 512 controls the voltage V applied to the drying unit 330.
  • the process proceeds to step S24.
  • step S24 the discharge unit 500 discharges the recording medium P to the discharge tray 502. Then, the process ends.
  • the present invention can be used in the field of inkjet recording devices.

Abstract

An inkjet recording device (600) is provided with an ultrasonic sensor (180), a discernment unit (511), an image formation unit (300), a drying unit (330), and a voltage control unit (512). The ultrasonic sensor (180) sends and receives ultrasonic waves S to/from a recording medium P. The discernment unit (511) discerns the type of the recording medium P. The image formation unit (300) ejects ink onto the recording medium P. The drying unit (330) dries the ink ejected onto the recording medium P. The voltage control unit (512) controls, on the basis of the type of the recording medium P, the voltage V supplied to the drying unit (330).

Description

インクジェット記録装置Inkjet recording device
　本発明は、インクジェット記録装置に関する。 The present invention relates to an inkjet recording device.
　インクジェット記録装置は、インクジェットヘッドが吐出したインクにより記録媒体に画像を形成する。 The inkjet recording device forms an image on a recording medium with the ink ejected by the inkjet head.
特開２０１９－４５６４８号公報Japanese Unexamined Patent Publication No. 2019-45648
　インクジェット記録装置の場合、記録媒体にインクが射出されるため、インクが乾燥する前に記録媒体が搬送ローラーを通過すると、搬送ローラーがインクにより汚損される可能性がある。また、記録媒体に射出されたインクの乾燥し易さは、記録媒体の種別に依る。そのため、記録媒体の種別に依らずにインクを乾燥させると、無駄な電力を消費してしまう可能性がある。 In the case of an inkjet recording device, ink is ejected onto the recording medium, so if the recording medium passes through the transport roller before the ink dries, the transport roller may be soiled by the ink. The ease with which the ink ejected onto the recording medium dries depends on the type of recording medium. Therefore, if the ink is dried regardless of the type of recording medium, wasteful power may be consumed.
　本発明は、上記課題に鑑み、無駄な電力消費を抑制できるインクジェット記録装置を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide an inkjet recording device capable of suppressing wasteful power consumption.
　本発明に係るインクジェット記録装置は、超音波センサーと、判別部と、画像形成部と、乾燥部と、電圧制御部とを備える。前記超音波センサーは、記録媒体に超音波を送受信する。前記判別部は、前記記録媒体の種別を判別する。前記画像形成部は、前記記録媒体にインクを射出する。前記乾燥部は、前記記録媒体に射出された前記インクを乾燥させる。前記電圧制御部は、前記記録媒体の前記種別に基づいて、前記乾燥部に供給する電圧を制御する。 The inkjet recording device according to the present invention includes an ultrasonic sensor, a discrimination unit, an image forming unit, a drying unit, and a voltage control unit. The ultrasonic sensor transmits / receives ultrasonic waves to a recording medium. The discriminating unit discriminates the type of the recording medium. The image forming unit ejects ink onto the recording medium. The drying unit dries the ink ejected onto the recording medium. The voltage control unit controls the voltage supplied to the drying unit based on the type of the recording medium.
　本発明のインクジェット記録装置によれば、記録媒体の種別に応じて、乾燥部がインクを乾燥させる速度を適切に制御できるため、無駄な電力消費を抑制できる。 According to the inkjet recording apparatus of the present invention, the speed at which the drying unit dries the ink can be appropriately controlled according to the type of recording medium, so that wasteful power consumption can be suppressed.
本発明の実施形態１に係るインクジェット記録装置の構成を示す図である。It is a figure which shows the structure of the inkjet recording apparatus which concerns on Embodiment 1 of this invention. 実施形態１に係るインクジェット記録装置の構成を示すブロック図である。It is a block diagram which shows the structure of the inkjet recording apparatus which concerns on Embodiment 1. FIG. 実施形態１に係るインクジェット記録装置の超音波センサーを説明する図である。It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1. FIG. 実施形態１に係るインクジェット記録装置の超音波センサーを説明する図である。It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1. FIG. 実施形態１に係るインクジェット記録装置の超音波センサーを説明する図である。It is a figure explaining the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 1. FIG. 実施形態２に係るインクジェット記録装置の超音波センサーを示す図である。It is a figure which shows the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 2. 実施形態２に係るインクジェット記録装置の超音波センサーを示す図である。It is a figure which shows the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 2. 実施形態２に係るインクジェット記録装置の超音波センサーを示す図である。It is a figure which shows the ultrasonic sensor of the inkjet recording apparatus which concerns on Embodiment 2. 実施形態３に係るインクジェット記録装置の乾燥部を示す図である。It is a figure which shows the dry part of the inkjet recording apparatus which concerns on Embodiment 3. 実施形態４に係るインクジェット記録装置の電圧制御部が制御する電圧の変化を示す図である。It is a figure which shows the change of the voltage controlled by the voltage control part of the inkjet recording apparatus which concerns on Embodiment 4. FIG. 実施形態４に係るインクジェット記録装置の電圧制御部が制御する電圧の変化を示す図である。It is a figure which shows the change of the voltage controlled by the voltage control part of the inkjet recording apparatus which concerns on Embodiment 4. FIG. 実施形態４に係るインクジェット記録装置の電圧制御部が制御する電圧の変化を示す図である。It is a figure which shows the change of the voltage controlled by the voltage control part of the inkjet recording apparatus which concerns on Embodiment 4. FIG. 実施形態５に係るインクジェット記録装置の乾燥部を示す図である。It is a figure which shows the dry part of the inkjet recording apparatus which concerns on embodiment 5. インクジェット記録装置の処理を示すフローチャートである。It is a flowchart which shows the processing of an inkjet recording apparatus.
（実施形態１）
　以下、本発明の実施形態１について、図面を参照しながら説明する。なお、図中、同一または相当部分については同一の参照符号を付して説明を繰り返さない。本明細書では、Ｘ軸およびＹ軸は水平面に平行であり、Ｚ軸は鉛直線に平行である。 (Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals and the description is not repeated. In the present specification, the X-axis and the Y-axis are parallel to the horizontal plane, and the Z-axis is parallel to the vertical line.
　図１を参照して、本発明の実施形態１に係るインクジェット記録装置６００について説明する。図１は、インクジェット記録装置６００の構成の一例を示す図である。本実施形態１は、本願のすべての実施形態に適用され得る。 The inkjet recording apparatus 600 according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing an example of the configuration of the inkjet recording device 600. The first embodiment can be applied to all the embodiments of the present application.
　図１に示されるように、インクジェット記録装置６００は、装置筐体１００と、給送部２００と、インクジェット記録方式の画像形成部３００と、搬送部４００と、排出部５００とを備える。 As shown in FIG. 1, the inkjet recording device 600 includes an apparatus housing 100, a feeding unit 200, an inkjet recording type image forming unit 300, a conveying unit 400, and an discharging unit 500.
　装置筐体１００は、給送部２００と、画像形成部３００と、搬送部４００と、排出部５００とを内包する。排出部５００は、装置筐体１００から一部が表出している。 The device housing 100 includes a feeding unit 200, an image forming unit 300, a conveying unit 400, and a discharging unit 500. A part of the discharge unit 500 is exposed from the device housing 100.
　給送部２００は、装置筐体１００の内部の下方に配置されている。画像形成部３００は、給送部２００の上方に配置されている。搬送部４００は、画像形成部３００の一方側に配置されている。排出部５００は、画像形成部３００の他方側に配置されている。 The feeding unit 200 is arranged below the inside of the device housing 100. The image forming unit 300 is arranged above the feeding unit 200. The transport unit 400 is arranged on one side of the image forming unit 300. The discharge unit 500 is arranged on the other side of the image forming unit 300.
　給送部２００は、装置筐体１００に着脱自在の給紙カセット２０１と、給紙ローラー２０２と、ガイド板２０３とを備える。給紙ローラー２０２は給紙カセット２０１の一端側の上方に配置されている。ガイド板２０３は、給紙ローラー２０２と搬送部４００との間に配置されている。 The feeding unit 200 includes a paper feed cassette 201 that can be attached to and detached from the device housing 100, a paper feed roller 202, and a guide plate 203. The paper feed roller 202 is arranged above one end side of the paper feed cassette 201. The guide plate 203 is arranged between the paper feed roller 202 and the transport unit 400.
　給送部２００は、給紙カセット２０１の記録媒体Ｐを、後述する画像形成部３００に向けて給送する。 The feeding unit 200 feeds the recording medium P of the paper cassette 201 toward the image forming unit 300, which will be described later.
　給紙カセット２０１内には、複数の記録媒体Ｐが積み重ねられた状態で収納されている。給紙ローラー２０２は、給紙カセット２０１内の記録媒体Ｐを１枚ずつ取り出す。ガイド板２０３は、給紙ローラー２０２が取り出した記録媒体Ｐを搬送部４００に案内する。 A plurality of recording media P are stored in a stacked state in the paper feed cassette 201. The paper feed roller 202 takes out the recording media P in the paper feed cassette 201 one by one. The guide plate 203 guides the recording medium P taken out by the paper feed roller 202 to the transport unit 400.
　搬送部４００は、略Ｃ字形の用紙搬送路４０１と、搬送ローラー対４０２と、レジストローラー対４０３と、ガイド板４０４とを備える。搬送ローラー対４０２は、用紙搬送路４０１の入口側に設けられている。レジストローラー対４０３は、用紙搬送路４０１の出口側に設けられている。ガイド板４０４は、レジストローラー対４０３と画像形成部３００との間に配置されている。 The transport unit 400 includes a substantially C-shaped paper transport path 401, a transport roller pair 402, a resist roller pair 403, and a guide plate 404. The transport roller pair 402 is provided on the inlet side of the paper transport path 401. The resist roller pair 403 is provided on the outlet side of the paper transport path 401. The guide plate 404 is arranged between the resist roller pair 403 and the image forming unit 300.
　搬送ローラー対４０２は、給送部２００から給紙される記録媒体Ｐを挟んで用紙搬送路４０１に送出する。レジストローラー対４０３は、用紙搬送路４０１から供給される記録媒体Ｐの斜行補正を行う。そして、レジストローラー対４０３は、印字のタイミングと記録媒体Ｐの搬送とを同期させるために、記録媒体Ｐを一時待機させた後、記録媒体Ｐを印字タイミングに合わせてガイド板４０４に送出する。ガイド板４０４は、レジストローラー対４０３が送出した記録媒体Ｐを画像形成部３００に案内する。 The transport roller pair 402 sandwiches the recording medium P to be fed from the feeding unit 200 and sends it to the paper transport path 401. The resist roller pair 403 corrects the skew of the recording medium P supplied from the paper transport path 401. Then, the resist roller pair 403 temporarily waits for the recording medium P in order to synchronize the printing timing with the transfer of the recording medium P, and then sends the recording medium P to the guide plate 404 in accordance with the printing timing. The guide plate 404 guides the recording medium P sent out by the resist roller pair 403 to the image forming unit 300.
　画像形成部３００は、記録部３１０と、搬送ユニット３２０と、超音波センサー１８０と、乾燥部３３０とを備える。 The image forming unit 300 includes a recording unit 310, a transport unit 320, an ultrasonic sensor 180, and a drying unit 330.
　記録部３１０は、ヘッドアッセンブリー３１２と、タンクユニット３１６とを備える。 The recording unit 310 includes a head assembly 312 and a tank unit 316.
　ヘッドアッセンブリー３１２は、記録媒体Ｐの搬送方向の上流側から下流側に向けて並設された４色の記録ヘッド３１２Ｋ、３１２Ｃ、３１２Ｍ、３１２Ｙにより構成されている。 The head assembly 312 is composed of four-color recording heads 312K, 312C, 312M, and 312Y arranged side by side from the upstream side to the downstream side in the transport direction of the recording medium P.
　記録ヘッド３１２Ｋ、３１２Ｃ、３１２Ｍ、３１２Ｙの各々は、Ｘ軸方向に配列された複数のノズルを備える。ヘッドアッセンブリー３１２は、ライン型と称される。例えば、ライン型のヘッドアッセンブリー３１２は、装置筐体１００に固定されている。 Each of the recording heads 312K, 312C, 312M, and 312Y includes a plurality of nozzles arranged in the X-axis direction. The head assembly 312 is referred to as a line type. For example, the line-type head assembly 312 is fixed to the device housing 100.
　タンクユニット３１６は、記録媒体Ｐの搬送方向の上流側から下流側に向けて並設された、４色のインクタンク３１６Ｋ、３１６Ｃ、３１６Ｍ、３１６Ｙにより構成されている。 The tank unit 316 is composed of four color ink tanks 316K, 316C, 316M, and 316Y arranged side by side from the upstream side to the downstream side in the transport direction of the recording medium P.
　記録ヘッド３１２Ｋ、３１２Ｃ、３１２Ｍ、３１２Ｙの各々は、それぞれ個別のインク供給ポンプ（図示せず）を介して、対応する色のインクタンク３１６Ｋ、３１６Ｃ、３１６Ｍ、３１６Ｙの各々に連通している。 Each of the recording heads 312K, 312C, 312M, and 312Y communicates with each of the corresponding color ink tanks 316K, 316C, 316M, and 316Y via individual ink supply pumps (not shown).
　搬送ユニット３２０は、支持ローラー３２１と、駆動ローラー３２２と、１対のテンションローラー３２３と、搬送ベルト３２４と、吸引ユニット（図示せず）とを備える。 The transport unit 320 includes a support roller 321, a drive roller 322, a pair of tension rollers 323, a transport belt 324, and a suction unit (not shown).
　搬送ベルト３２４は無端状で、支持ローラー３２１、駆動ローラー３２２、およびテンションローラー３２３を囲むように張設されている。搬送ベルト３２４には、厚さ方向に貫通する複数の貫通孔（図示せず）が穿孔されている。 The transport belt 324 has an endless shape and is stretched so as to surround the support roller 321 and the drive roller 322 and the tension roller 323. The transport belt 324 is perforated with a plurality of through holes (not shown) penetrating in the thickness direction.
　吸引ユニットの内部には、ファンや真空ポンプ等の吸引手段が配置されている。吸引手段を駆動すると、吸引ユニットの内部に負圧が発生する。負圧は、搬送ベルト３２４の複数の貫通孔を介して、搬送ベルト３２４の一方の面に支持された記録媒体Ｐに作用し、記録媒体Ｐが搬送ベルト３２４上に吸引される。 Inside the suction unit, suction means such as a fan and a vacuum pump are arranged. When the suction means is driven, a negative pressure is generated inside the suction unit. The negative pressure acts on the recording medium P supported on one surface of the transfer belt 324 through the plurality of through holes of the transfer belt 324, and the recording medium P is sucked onto the transfer belt 324.
　駆動ローラー３２２は、支持ローラー３２１に対して用紙搬送方向に間隔をおいて配置されている。駆動ローラー３２２は、記録媒体Ｐの搬送方向である第１方向および第１方向とは逆の第２方向に搬送ベルト３２４を回転させる。テンションローラー３２３は、支持ローラー３２１と駆動ローラー３２２との間の下方に配置され、搬送ベルト３２４にテンションを付与する。 The drive rollers 322 are arranged at intervals in the paper transport direction with respect to the support rollers 321. The drive roller 322 rotates the transport belt 324 in the first direction, which is the transport direction of the recording medium P, and in the second direction opposite to the first direction. The tension roller 323 is arranged below between the support roller 321 and the drive roller 322 to apply tension to the transport belt 324.
　ヘッドアッセンブリー３１２は、搬送ベルト３２４によって搬送される記録媒体Ｐにインクを吐出して、記録媒体Ｐの上に画像を形成する。 The head assembly 312 ejects ink to the recording medium P conveyed by the transfer belt 324 to form an image on the recording medium P.
　超音波センサー１８０は、発信部１８０ａと、受信部１８０ｂとを有する。超音波センサー１８０は、記録媒体Ｐに超音波Ｓを発信し、反射波Ｓまたは透過波Ｓを受信する。 The ultrasonic sensor 180 has a transmitting unit 180a and a receiving unit 180b. The ultrasonic sensor 180 transmits ultrasonic waves S to the recording medium P and receives reflected waves S or transmitted waves S.
　発信部１８０ａは、記録媒体Ｐに超音波Ｓを発信する。受信部１８０ｂは、記録媒体Ｐの搬送経路に対して、発信部１８０ａと同じ側に配置されてもよい。受信部１８０ｂは、記録媒体Ｐの搬送経路に対して、発信部１８０ａと反対側に配置されてもよい。 The transmission unit 180a transmits ultrasonic waves S to the recording medium P. The receiving unit 180b may be arranged on the same side as the transmitting unit 180a with respect to the transport path of the recording medium P. The receiving unit 180b may be arranged on the side opposite to the transmitting unit 180a with respect to the transport path of the recording medium P.
　受信部１８０ｂは、発信部１８０ａと同じ側に配置される場合、超音波Ｓが記録媒体Ｐに反射した反射波Ｓを受信する。受信部１８０ｂは、発信部１８０ａと反対側に配置される場合、超音波Ｓが記録媒体Ｐを透過した透過波Ｓを受信する。 When the receiving unit 180b is arranged on the same side as the transmitting unit 180a, the receiving unit 180b receives the reflected wave S reflected by the ultrasonic wave S on the recording medium P. When the receiving unit 180b is arranged on the opposite side of the transmitting unit 180a, the ultrasonic wave S receives the transmitted wave S transmitted through the recording medium P.
　超音波センサー１８０は、記録部３１０に対して、記録媒体Ｐの搬送方向上流側に配置されてもよい。 The ultrasonic sensor 180 may be arranged on the upstream side of the recording medium P in the transport direction with respect to the recording unit 310.
　超音波センサー１８０は、記録部３１０に対して、記録媒体Ｐの搬送方向下流側であって、かつ、乾燥部３３０に対して、記録媒体Ｐの搬送方向上流側に配置されてもよい。 The ultrasonic sensor 180 may be arranged on the downstream side of the recording medium P in the transport direction with respect to the recording unit 310 and on the upstream side of the recording medium P in the transport direction with respect to the drying unit 330.
　乾燥部３３０は、ガイド板３３４を備える。 The drying unit 330 includes a guide plate 334.
　乾燥部３３０は、記録媒体Ｐに気流を送風して、ヘッドアッセンブリー３１２から記録媒体Ｐ上に射出されたインクを乾燥させる。 The drying unit 330 blows an air flow to the recording medium P to dry the ink ejected from the head assembly 312 onto the recording medium P.
　ガイド板３３４は、搬送ユニット３２０が送出した記録媒体Ｐを排出部５００に案内する。 The guide plate 334 guides the recording medium P sent by the transport unit 320 to the discharge unit 500.
　排出部５００は、排出ローラー対５０１と、排出トレイ５０２とを備える。排出トレイ５０２は、装置筐体１００に形成された排出口１０１から外部に突出するように装置筐体１００に固定されている。 The discharge unit 500 includes a discharge roller pair 501 and a discharge tray 502. The discharge tray 502 is fixed to the device housing 100 so as to project outward from the discharge port 101 formed in the device housing 100.
　乾燥部３３０を通過した記録媒体Ｐは、排出ローラー対５０１によって排出口１０１の方向に移送され、排出トレイ５０２に案内されて、排出口１０１を介して装置筐体１００の外部に排出される。排出ローラー対５０１は、「ローラー部」の一例に相当する。 The recording medium P that has passed through the drying section 330 is transferred in the direction of the discharge port 101 by the discharge roller pair 501, guided by the discharge tray 502, and discharged to the outside of the apparatus housing 100 via the discharge port 101. The discharge roller pair 501 corresponds to an example of a "roller portion".
　次に、図２を参照して、実施形態１に係るインクジェット記録装置６００の構成をさらに説明する。図２は、インクジェット記録装置６００の構成を示すブロック図である。実施形態１は、本願のすべての実施形態に適用され得る。 Next, the configuration of the inkjet recording apparatus 600 according to the first embodiment will be further described with reference to FIG. FIG. 2 is a block diagram showing the configuration of the inkjet recording device 600. The first embodiment can be applied to all the embodiments of the present application.
　図２に示されるように、インクジェット記録装置６００は、超音波センサー１８０と、制御部１５０と、乾燥部３３０と、給送部２００と、搬送部４００と、画像形成部３００と、排出部５００とを備える。以下、図１で説明した構成、動作、および作用については、重複する説明を省略する。 As shown in FIG. 2, the inkjet recording device 600 includes an ultrasonic sensor 180, a control unit 150, a drying unit 330, a feeding unit 200, a transport unit 400, an image forming unit 300, and a discharging unit 500. And. Hereinafter, duplicate description of the configuration, operation, and operation described with reference to FIG. 1 will be omitted.
　超音波センサー１８０は、超音波Ｓを送受信する。記録媒体Ｐの厚さＴ、または、記録媒体Ｐの材質を判別するためである。 The ultrasonic sensor 180 transmits and receives ultrasonic waves S. This is to determine the thickness T of the recording medium P or the material of the recording medium P.
　超音波センサー１８０は、発信部１８０ａと、受信部１８０ｂとを含む。 The ultrasonic sensor 180 includes a transmitting unit 180a and a receiving unit 180b.
　発信部１８０ａは、超音波Ｓを発信する。発信部１８０ａの一例は、トランスデューサーである。 The transmission unit 180a transmits ultrasonic waves S. An example of the transmitter 180a is a transducer.
　受信部１８０ｂは、超音波Ｓを受信する。受信部１８０ｂの一例は、トランスデューサーである。 The receiving unit 180b receives the ultrasonic wave S. An example of the receiving unit 180b is a transducer.
　受信部１８０ｂは、記録媒体Ｐを透過した透過波Ｓを受信する。 The receiving unit 180b receives the transmitted wave S transmitted through the recording medium P.
　受信部１８０ｂは、記録媒体Ｐで反射した反射波Ｓを受信する。 The receiving unit 180b receives the reflected wave S reflected by the recording medium P.
　超音波Ｓの受信レベルは、記録媒体Ｐの厚さＴを示す。 The reception level of the ultrasonic wave S indicates the thickness T of the recording medium P.
　超音波Ｓの受信レベルは、記録媒体Ｐの材質を示す。 The reception level of ultrasonic wave S indicates the material of the recording medium P.
　制御部１５０は、インクジェット記録装置６００の各構成要素の駆動を制御する。制御部１５０は、図２に示されるように、判別部５１１と、電圧制御部５１２とを含む。具体的には、図示しない記憶部に記憶された制御プログラムを制御部１５０が実行することにより、制御部１５０は、判別部５１１および電圧制御部５１２として機能する。 The control unit 150 controls the driving of each component of the inkjet recording device 600. As shown in FIG. 2, the control unit 150 includes a discrimination unit 511 and a voltage control unit 512. Specifically, when the control unit 150 executes a control program stored in a storage unit (not shown), the control unit 150 functions as a discrimination unit 511 and a voltage control unit 512.
　制御部１５０は、具体的には、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）またはＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ　Ｓｐｅｃｉｆｉｃ　Ｉｎｔｅｇｒａｔｅｄ　Ｃｉｒｃｕｉｔ）のようなプロセッサーを含む。そして、制御部１５０のプロセッサーは、図示しない記憶部に記憶されたコンピュータープログラムを実行することによって、インクジェット記録装置６００の各部の動作を制御する。制御部１５０は電子回路で実現されてもよい。 Specifically, the control unit 150 includes a processor such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit). Then, the processor of the control unit 150 controls the operation of each unit of the inkjet recording device 600 by executing a computer program stored in a storage unit (not shown). The control unit 150 may be realized by an electronic circuit.
　判別部５１１は、記録媒体Ｐの種別を判別する。具体的には、判別部５１１は、超音波センサー１８０が発信した超音波Ｓと、受信した反射波Ｓまたは透過波Ｓとに基づいて、記録媒体Ｐの種別を判別する。種別は、具体的には、記録媒体Ｐの厚さＴ、記録媒体Ｐの材質を示す。 The discrimination unit 511 discriminates the type of the recording medium P. Specifically, the discrimination unit 511 discriminates the type of the recording medium P based on the ultrasonic wave S transmitted by the ultrasonic sensor 180 and the received reflected wave S or transmitted wave S. Specifically, the type indicates the thickness T of the recording medium P and the material of the recording medium P.
　本実施形態によれば、記録媒体Ｐの種別に応じて、乾燥部３３０がインクを乾燥させる速度を適切に制御できるため、無駄な電力消費を抑制できる。 According to the present embodiment, since the speed at which the drying unit 330 dries the ink can be appropriately controlled according to the type of the recording medium P, wasteful power consumption can be suppressed.
　画像形成部３００は、記録媒体Ｐにインクを射出する。 The image forming unit 300 ejects ink onto the recording medium P.
　乾燥部３３０は、記録媒体Ｐに射出されたインクを乾燥させる。 The drying unit 330 dries the ink ejected to the recording medium P.
　乾燥部３３０は、ファン部７５と、ヒーター部７３とを含む。 The drying unit 330 includes a fan unit 75 and a heater unit 73.
　ヒーター部７３は、熱源となる。 The heater unit 73 serves as a heat source.
　ファン部７５は、記録媒体Ｐに向けて気流を発生させる。 The fan unit 75 generates an air flow toward the recording medium P.
　ファン部７５は、ヒーター部７３が発した熱を記録媒体Ｐに向けて送風する。 The fan unit 75 blows the heat generated by the heater unit 73 toward the recording medium P.
　電圧制御部５１２は、乾燥部３３０に印加する電圧Ｖを制御する。具体的には、電圧制御部５１２は、ファン部７５に印加する電圧Ｖを制御する。 The voltage control unit 512 controls the voltage V applied to the drying unit 330. Specifically, the voltage control unit 512 controls the voltage V applied to the fan unit 75.
　本実施形態によれば、記録媒体Ｐの種別に応じて、ファン部７５が発生させる気流量を適切に制御できるため、無駄な電力消費を抑制できる。 According to this embodiment, since the air flow rate generated by the fan unit 75 can be appropriately controlled according to the type of the recording medium P, wasteful power consumption can be suppressed.
　電圧制御部５１２は、ヒーター部７３に印加する電圧Ｖを制御する。 The voltage control unit 512 controls the voltage V applied to the heater unit 73.
　本実施形態によれば、記録媒体Ｐの種別に応じて、ヒーター部７３に印加する電圧Ｖを制御することによって、ヒーター部７３から生じる熱を適切に制御できるため、無駄な電力消費を抑制できる。具体的には、後述するように、記録媒体Ｐが薄紙Ｐ１である場合、記録媒体Ｐが厚紙Ｐ２である場合よりも、ヒーター部７３に印加する電圧Ｖを抑制できる。 According to the present embodiment, by controlling the voltage V applied to the heater unit 73 according to the type of the recording medium P, the heat generated from the heater unit 73 can be appropriately controlled, so that wasteful power consumption can be suppressed. .. Specifically, as will be described later, when the recording medium P is the thin paper P1, the voltage V applied to the heater unit 73 can be suppressed as compared with the case where the recording medium P is the thick paper P2.
　排出ローラー対５０１は、インクが射出された記録媒体Ｐを搬送する。 The discharge roller pair 501 conveys the recording medium P on which the ink is ejected.
　乾燥部３３０は、排出ローラー対５０１に対して記録媒体Ｐの搬送方向上流側に配置される。 The drying section 330 is arranged on the upstream side of the recording medium P in the transport direction with respect to the discharge roller pair 501.
　本実施形態によれば、排出ローラー対５０１が記録媒体Ｐを搬送する前に、記録媒体Ｐに射出されたインクを好適に乾燥させることができる。 According to this embodiment, the ink ejected to the recording medium P can be suitably dried before the discharge roller pair 501 conveys the recording medium P.
　次に、図２に加え、図３Ａ、図３Ｂ、図３Ｃを参照して、超音波センサー１８０を具体的に説明する。図３Ａ、図３Ｂ、図３Ｃは、実施形態１に係るインクジェット記録装置６００の超音波センサー１８０を説明する図である。図３Ａ、図３Ｂ、図３Ｃは、記録媒体Ｐが紙である場合に適用され得る。 Next, in addition to FIG. 2, the ultrasonic sensor 180 will be specifically described with reference to FIGS. 3A, 3B, and 3C. 3A, 3B, and 3C are diagrams for explaining the ultrasonic sensor 180 of the inkjet recording apparatus 600 according to the first embodiment. 3A, 3B, and 3C can be applied when the recording medium P is paper.
　図３Ａは、記録媒体Ｐが薄紙Ｐ１である場合の超音波センサー１８０の構成を示す。図３Ａにおいて、発信部１８０ａは、薄紙Ｐ１の表面側に配置される。受信部１８０ｂは、薄紙Ｐ１の裏面側に配置される。つまり、発信部１８０ａと、受信部１８０ｂとは、薄紙Ｐ１の搬送経路に対して、互いに反対側に配置されていればよい。 FIG. 3A shows the configuration of the ultrasonic sensor 180 when the recording medium P is a thin paper P1. In FIG. 3A, the transmission unit 180a is arranged on the front surface side of the thin paper P1. The receiving unit 180b is arranged on the back surface side of the thin paper P1. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on opposite sides of the transport path of the thin paper P1.
　図３Ｂは、記録媒体Ｐが厚紙Ｐ２である場合の超音波センサー１８０の構成を示す。図３Ｂにおいて、発信部１８０ａは、厚紙Ｐ２の表面側に配置される。受信部１８０ｂは、厚紙Ｐ２の裏面側に配置される。つまり、発信部１８０ａと、受信部１８０ｂとは、厚紙Ｐ２の搬送経路に対して、互いに反対側に配置されていればよい。 FIG. 3B shows the configuration of the ultrasonic sensor 180 when the recording medium P is thick paper P2. In FIG. 3B, the transmitting portion 180a is arranged on the front surface side of the thick paper P2. The receiving unit 180b is arranged on the back surface side of the thick paper P2. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on opposite sides of the transport path of the thick paper P2.
　図３Ａおよび図３Ｂでは、超音波Ｓの強度を矢印の太さで表す。 In FIGS. 3A and 3B, the intensity of the ultrasonic wave S is represented by the thickness of the arrow.
　超音波Ｓ１は、記録媒体Ｐを透過することにより強度が減衰し、透過波Ｓ２となる。図３Ａに示すように、透過波Ｓ２は、受信部１８０ｂに受信される。 The intensity of the ultrasonic wave S1 is attenuated by passing through the recording medium P, and becomes a transmitted wave S2. As shown in FIG. 3A, the transmitted wave S2 is received by the receiving unit 180b.
　判別部５１１は、受信部１８０ｂに受信された透過波Ｓ２の電圧Ｖ１に基づいて、記録媒体Ｐの種別を判別する。つまり、判別部５１１は、記録媒体Ｐが厚さＴ１の薄紙Ｐ１であることを判別する。 The discrimination unit 511 discriminates the type of the recording medium P based on the voltage V1 of the transmitted wave S2 received by the reception unit 180b. That is, the determination unit 511 determines that the recording medium P is a thin paper P1 having a thickness T1.
　超音波Ｓ１は、記録媒体Ｐを透過することにより強度が減衰し、透過波Ｓ３となる。図３Ｂに示すように、透過波Ｓ３は、受信部１８０ｂに受信される。 The intensity of the ultrasonic wave S1 is attenuated by passing through the recording medium P, and becomes a transmitted wave S3. As shown in FIG. 3B, the transmitted wave S3 is received by the receiving unit 180b.
　透過波Ｓ３の電圧Ｖ２（強度）は、図３Ｃに示す電圧Ｖ１よりもさらに小さい。 The voltage V2 (intensity) of the transmitted wave S3 is even smaller than the voltage V1 shown in FIG. 3C.
　判別部５１１は、受信部１８０ｂに受信された透過波Ｓ３の電圧Ｖ２に基づいて、記録媒体Ｐの種別を判別する。つまり、判別部５１１は、記録媒体Ｐが厚さＴ２（＞Ｔ１）の厚紙Ｐ２であることを判別する。 The discrimination unit 511 discriminates the type of the recording medium P based on the voltage V2 of the transmitted wave S3 received by the reception unit 180b. That is, the determination unit 511 determines that the recording medium P is a thick paper P2 having a thickness of T2 (> T1).
　本実施形態によれば、判別部５１１は、受信部１８０ｂが受信した透過波の電圧に基づいて、記録媒体Ｐの種別が薄紙Ｐ１であるか、厚紙Ｐ２であるかを判別できる。 According to the present embodiment, the discriminating unit 511 can discriminate whether the type of the recording medium P is the thin paper P1 or the thick paper P2 based on the voltage of the transmitted wave received by the receiving unit 180b.
（実施形態２）
　次に、図２に加え、図４Ａ、図４Ｂ、図４Ｃを参照して、実施形態２に係る超音波センサー１８０を説明する。図４Ａ、図４Ｂ、図４Ｃは、実施形態２に係るインクジェット記録装置６００の超音波センサー１８０を説明する図である。実施形態２は、すべての実施形態に適用され得る。 (Embodiment 2)
Next, in addition to FIG. 2, the ultrasonic sensor 180 according to the second embodiment will be described with reference to FIGS. 4A, 4B, and 4C. 4A, 4B, and 4C are diagrams for explaining the ultrasonic sensor 180 of the inkjet recording apparatus 600 according to the second embodiment. The second embodiment can be applied to all the embodiments.
　図４Ａは、超音波センサー１８０の構成を示す。図４Ａにおいて、発信部１８０ａは、記録媒体Ｐの表面側に配置される。受信部１８０ｂは、記録媒体Ｐの表面側に配置される。つまり、発信部１８０ａと、受信部１８０ｂとは、記録媒体Ｐの搬送経路に対して、同じ側に配置されていればよい。 FIG. 4A shows the configuration of the ultrasonic sensor 180. In FIG. 4A, the transmission unit 180a is arranged on the surface side of the recording medium P. The receiving unit 180b is arranged on the surface side of the recording medium P. That is, the transmitting unit 180a and the receiving unit 180b may be arranged on the same side with respect to the transport path of the recording medium P.
　超音波Ｓ１は、記録媒体Ｐが搬送経路に搬送されていない間、反射しない。そのため、図４Ａに示すように、超音波Ｓ４が受信部１８０ｂに受信されない。 The ultrasonic wave S1 is not reflected while the recording medium P is not transported to the transport path. Therefore, as shown in FIG. 4A, the ultrasonic wave S4 is not received by the receiving unit 180b.
　判別部５１１は、受信部１８０ｂに受信された反射波Ｓ５の電圧Ｖに基づいて、記録媒体Ｐの種別を判別する。 The discrimination unit 511 discriminates the type of the recording medium P based on the voltage V of the reflected wave S5 received by the reception unit 180b.
（実施形態３）
　次に、図２に加え、図５を参照して、実施形態３に係る乾燥部３３０の詳細構成を説明する。図５は、実施形態３に係るインクジェット記録装置６００の乾燥部３３０を示す図である。実施形態３は、本願のすべての実施形態に適用され得る。 (Embodiment 3)
Next, in addition to FIG. 2, the detailed configuration of the drying unit 330 according to the third embodiment will be described with reference to FIG. FIG. 5 is a diagram showing a drying portion 330 of the inkjet recording apparatus 600 according to the third embodiment. Embodiment 3 can be applied to all embodiments of the present application.
　図５に示すように、乾燥部３３０は、ヒーター部７３と、ファン部７５と、ハウジング７７とを含む。 As shown in FIG. 5, the drying unit 330 includes a heater unit 73, a fan unit 75, and a housing 77.
　ハウジング７７は、温風吹出口を有する筒状の部材であって、ヒーター部７３と、ファン部７５とを収容する。ヒーター部７３は、熱源となるセラミックヒーター７９と、セラミックヒーター７９の周囲に設けられたフィン８１とを有する。ヒーター部７３は、ファン部７５の送風方向の下流側に配置されている。乾燥部３３０は、ファン部７５から送風される気流がヒーター部７３を通過することで加熱されて、温風を発生する。 The housing 77 is a cylindrical member having a hot air outlet, and houses a heater portion 73 and a fan portion 75. The heater unit 73 has a ceramic heater 79 as a heat source and fins 81 provided around the ceramic heater 79. The heater portion 73 is arranged on the downstream side of the fan portion 75 in the blowing direction. The drying unit 330 is heated by passing the airflow blown from the fan unit 75 through the heater unit 73 to generate warm air.
　ガイド板３３４は、第１ガイド板８５と、第２ガイド板８７とを備える。 The guide plate 334 includes a first guide plate 85 and a second guide plate 87.
　第１ガイド板８５は、乾燥部３３０の側に配置され、第２ガイド板８７は、第１ガイド板８５から記録媒体Ｐが通過可能な隙間を隔てて、第１ガイド板８５に対向している。第１ガイド板８５および第２ガイド板８７の各々は、矩形の形状を有する。第１ガイド板８５は、乾燥部３３０からの温風の取入口８５ａを有する。第２ガイド板８７は、取入口８５ａに対向する位置に開口部８７ａを有する。温風は、取入口８５ａを通って記録媒体Ｐの印字面に吹き付けられる。 The first guide plate 85 is arranged on the side of the drying portion 330, and the second guide plate 87 faces the first guide plate 85 with a gap through which the recording medium P can pass from the first guide plate 85. There is. Each of the first guide plate 85 and the second guide plate 87 has a rectangular shape. The first guide plate 85 has a hot air intake 85a from the drying portion 330. The second guide plate 87 has an opening 87a at a position facing the intake 85a. The warm air is blown onto the printing surface of the recording medium P through the intake port 85a.
　本実施形態によれば、記録媒体Ｐに射出されたインクが、乾燥部３３０によって好適に乾燥される。 According to this embodiment, the ink ejected to the recording medium P is suitably dried by the drying unit 330.
（実施形態４）
　次に、図２に加え、図６Ａ、図６Ｂ、図７を参照して、電圧制御部５１２の制御について説明する。図６Ａ、図６Ｂは、実施形態４に係るインクジェット記録装置６００の電圧制御部５１２が制御する電圧Ｖの変化を示す図である。図７は、実施形態４に係るインクジェット記録装置６００の電圧制御部５１２が制御する電圧Ｖの変化を示す図である。実施形態４は、本願のすべての実施形態に適用され得る。 (Embodiment 4)
Next, in addition to FIG. 2, the control of the voltage control unit 512 will be described with reference to FIGS. 6A, 6B, and 7. 6A and 6B are diagrams showing changes in the voltage V controlled by the voltage control unit 512 of the inkjet recording apparatus 600 according to the fourth embodiment. FIG. 7 is a diagram showing a change in the voltage V controlled by the voltage control unit 512 of the inkjet recording apparatus 600 according to the fourth embodiment. Embodiment 4 can be applied to all embodiments of the present application.
　図２において説明したように、電圧制御部５１２は、記録媒体Ｐの種別に基づいて、乾燥部３３０に供給する電圧Ｖを制御する。すなわち、電圧制御部５１２は、ファン部７５に印加する電圧Ｖを制御する。電圧制御部５１２は、ヒーター部７３に印加する電圧Ｖを制御する。 As described in FIG. 2, the voltage control unit 512 controls the voltage V supplied to the drying unit 330 based on the type of the recording medium P. That is, the voltage control unit 512 controls the voltage V applied to the fan unit 75. The voltage control unit 512 controls the voltage V applied to the heater unit 73.
　図６Ａは、記録媒体Ｐが紙である場合において、ファン部７５に印加する電圧ＶＦ１を一定にし、ヒーター部７３に印加する電圧ＶＨを変更する実施形態を示す。一般に、薄紙Ｐ１は、インクの染み込む量が少なく、乾燥し易いのに対し、厚紙Ｐ２は、インクの染み込む量が多く、乾燥しにくい。 FIG. 6A shows an embodiment in which the voltage VF1 applied to the fan unit 75 is kept constant and the voltage VH applied to the heater unit 73 is changed when the recording medium P is paper. In general, the thin paper P1 has a small amount of ink soaked in and is easy to dry, whereas the thick paper P2 has a large amount of ink soaked in and is difficult to dry.
　そのため、判別部５１１が、記録媒体Ｐの種別を薄紙Ｐ１であると判別した場合、電圧制御部５１２は、ヒーター部７３に電圧ＶＨ１の電圧を印加する。 Therefore, when the discrimination unit 511 determines that the type of the recording medium P is the thin paper P1, the voltage control unit 512 applies the voltage of the voltage VH1 to the heater unit 73.
　判別部５１１が、記録媒体Ｐの種別を厚紙Ｐ２であると判別した場合、電圧制御部５１２は、厚紙Ｐ２のインクを早急に乾燥させるため、ヒーター部７３に電圧ＶＨ２の電圧を印加する。電圧ＶＨ２は、電圧ＶＨ１よりも大きい。 When the discrimination unit 511 determines that the type of the recording medium P is the thick paper P2, the voltage control unit 512 applies the voltage of the voltage VH2 to the heater unit 73 in order to quickly dry the ink of the thick paper P2. The voltage VH2 is larger than the voltage VH1.
　図６Ｂは、ヒーター部７３に印加する電圧ＶＨ３を一定にし、ファン部７５に印加する電圧ＶＦを変更する実施形態を示す。 FIG. 6B shows an embodiment in which the voltage VH3 applied to the heater unit 73 is kept constant and the voltage VF applied to the fan unit 75 is changed.
　判別部５１１が、記録媒体Ｐの種別を薄紙Ｐ１であると判別した場合、電圧制御部５１２は、ファン部７５に電圧ＶＦ２の電圧を印加する。 When the discrimination unit 511 determines that the type of the recording medium P is the thin paper P1, the voltage control unit 512 applies the voltage of the voltage VF2 to the fan unit 75.
　判別部５１１が、記録媒体Ｐの種別を厚紙Ｐ２であると判別した場合、電圧制御部５１２は、厚紙Ｐ２のインクを早急に乾燥させるため、ファン部７５に電圧ＶＦ３の電圧を印加する。電圧ＶＨ３は、電圧ＶＨ２よりも大きい。 When the discrimination unit 511 determines that the type of the recording medium P is the thick paper P2, the voltage control unit 512 applies the voltage of the voltage VF3 to the fan unit 75 in order to quickly dry the ink of the thick paper P2. The voltage VH3 is larger than the voltage VH2.
　図７は、記録媒体ＰがＯＨＰシートＰ３である場合において、ヒーター部７３への電圧の印加を停止し、ファン部７５に電圧を印加する実施形態を示す。一般に、ＯＨＰシートＰ３は、樹脂で形成されているため、インクが染み込みにくく、乾燥しにくい。さらに、ＯＨＰシートＰ３は、熱に弱い。 FIG. 7 shows an embodiment in which the application of the voltage to the heater unit 73 is stopped and the voltage is applied to the fan unit 75 when the recording medium P is the OHP sheet P3. In general, since the OHP sheet P3 is made of resin, it is difficult for ink to soak into it and it is difficult for it to dry. Further, the transparency P3 is sensitive to heat.
　そのため、判別部５１１が、記録媒体Ｐの種別をＯＨＰシートＰ３であると判別した場合、電圧制御部５１２は、ヒーター部７３への電圧の印加を停止し、ＯＨＰシートＰ３のインクを早急に乾燥させるため、ファン部７５に電圧ＶＦ４の電圧を印加する。例えば、超音波センサーとあわせてインク非吐出領域において光学センサーを利用することで、記録媒体Ｐの種別がＯＨＰシートＰ３であると判別してもよい。 Therefore, when the discrimination unit 511 determines that the type of the recording medium P is the OHP sheet P3, the voltage control unit 512 stops applying the voltage to the heater unit 73 and immediately dries the ink of the OHP sheet P3. The voltage of the voltage VF4 is applied to the fan unit 75 in order to make the fan unit 75. For example, by using the optical sensor in the ink non-ejection region together with the ultrasonic sensor, it may be determined that the type of the recording medium P is the OHP sheet P3.
　本実施形態によれば、記録媒体Ｐの種別に応じて、電圧制御部５１２は、ヒーター部７３に電圧を印加し、または停止することができる。記録媒体Ｐの種別に応じて、電圧制御部５１２は、ファン部７５に印加する電圧ＶＦ４を制御できる。 According to the present embodiment, the voltage control unit 512 can apply a voltage to or stop the heater unit 73 according to the type of the recording medium P. The voltage control unit 512 can control the voltage VF4 applied to the fan unit 75 according to the type of the recording medium P.
（実施形態５）
　次に、図８を参照して、実施形態５に係るインクジェット記録装置６００の乾燥部３３０を説明する。図８は、実施形態５に係るインクジェット記録装置６００の乾燥部３３０を示す図である。実施形態５は、本願のすべての実施形態に適用され得る。 (Embodiment 5)
Next, the drying portion 330 of the inkjet recording apparatus 600 according to the fifth embodiment will be described with reference to FIG. FIG. 8 is a diagram showing a drying portion 330 of the inkjet recording apparatus 600 according to the fifth embodiment. Embodiment 5 can be applied to all embodiments of the present application.
　図８において、乾燥部３３０は、乾燥部３３０ａと、乾燥部３３０ｂとを含む。ただし、乾燥部３３０は、単一の乾燥部３３０であってもよい。 In FIG. 8, the drying portion 330 includes a drying portion 330a and a drying portion 330b. However, the drying portion 330 may be a single drying portion 330.
　排出ローラー対５０１は、排出ローラー対５０１ａと、排出ローラー対５０１ｂとを含む。ただし、排出ローラー対５０１は、単一の排出ローラー対５０１であってもよい。 The discharge roller pair 501 includes a discharge roller pair 501a and a discharge roller pair 501b. However, the discharge roller pair 501 may be a single discharge roller pair 501.
　記録部３１０（図１）によりインクが射出された記録媒体Ｐは、インクが乾燥していない状態のまま、排出ローラー対５０１で搬送されることがある。そのため、インクにより排出ローラー対５０１が汚損されることがある。 The recording medium P on which the ink is ejected by the recording unit 310 (FIG. 1) may be conveyed by the discharge roller pair 501 while the ink is not dried. Therefore, the ink may stain the discharge roller pair 501.
　一方、排出ローラー対５０１が記録媒体Ｐと接触する斜線部分以外は、インクが乾燥していなくても、排出ローラー対５０１が汚損されるという問題は生じない。 On the other hand, there is no problem that the discharge roller pair 501 is contaminated even if the ink is not dried, except for the shaded portion where the discharge roller pair 501 contacts the recording medium P.
　従って、乾燥部３３０は、少なくとも、排出ローラー対５０１が記録媒体Ｐと接触する斜線部分のインクを乾燥できればよい。 Therefore, the drying unit 330 should be able to dry at least the ink in the shaded area where the discharge roller pair 501 contacts the recording medium P.
　実施形態５では、乾燥部３３０は、排出ローラー対５０１に対して、記録媒体Ｐの搬送方向上流側に配置される。 In the fifth embodiment, the drying unit 330 is arranged on the upstream side of the recording medium P in the transport direction with respect to the discharge roller pair 501.
　排出ローラー対５０１は、主走査方向の長さＬ１で記録媒体Ｐに接する。乾燥部３３０から送風される気流は、記録媒体ＰのエリアＡでインクに吹きかかる。エリアＡの主走査方向の幅Ｌ２は、排出ローラー対５０１の主走査方向の長さＬ１以上であることが好適である。 The discharge roller pair 501 is in contact with the recording medium P at a length L1 in the main scanning direction. The airflow blown from the drying portion 330 blows on the ink in the area A of the recording medium P. It is preferable that the width L2 of the area A in the main scanning direction is equal to or larger than the length L1 of the discharge roller pair 501 in the main scanning direction.
　本実施形態によれば、乾燥部３３０は、排出ローラー対５０１が記録媒体Ｐを搬送する前に、記録媒体Ｐに射出されたインクを好適に乾燥させることができる。 According to the present embodiment, the drying unit 330 can suitably dry the ink ejected to the recording medium P before the discharge roller pair 501 conveys the recording medium P.
　次に、図９を参照して、制御部１５０の動作について説明する。図９は、制御部１５０の動作の一例を示すフローチャートである。図９に示すように、処理は、ステップＳ１０～ステップＳ２４を含む。具体的には次の通りである。 Next, the operation of the control unit 150 will be described with reference to FIG. FIG. 9 is a flowchart showing an example of the operation of the control unit 150. As shown in FIG. 9, the process includes steps S10 to S24. Specifically, it is as follows.
　ステップＳ１０において、給送部２００は、記録媒体Ｐを給送する。処理は、ステップＳ１２に進む。 In step S10, the feeding unit 200 feeds the recording medium P. The process proceeds to step S12.
　ステップＳ１２において、搬送部４００は、記録媒体Ｐを搬送する。処理は、ステップＳ１４に進む。 In step S12, the transport unit 400 transports the recording medium P. The process proceeds to step S14.
　ステップＳ１４において、画像形成部３００は、記録媒体Ｐにインクを射出する。処理は、ステップＳ１６に進む。 In step S14, the image forming unit 300 ejects ink to the recording medium P. The process proceeds to step S16.
　ステップＳ１６において、発信部１８０ａは、超音波Ｓを発信する。処理は、ステップＳ１８に進む。 In step S16, the transmitting unit 180a transmits the ultrasonic wave S. The process proceeds to step S18.
　ステップＳ１８において、受信部１８０ｂは、記録媒体Ｐを透過した透過波Ｓを受信する。または、受信部１８０ｂは、記録媒体Ｐを反射した反射波Ｓを受信する。処理は、ステップＳ２０に進む。 In step S18, the receiving unit 180b receives the transmitted wave S transmitted through the recording medium P. Alternatively, the receiving unit 180b receives the reflected wave S reflected from the recording medium P. The process proceeds to step S20.
　ステップＳ２０において、判別部５１１は、記録媒体Ｐの種別を判別する。処理は、ステップＳ２２に進む。 In step S20, the discrimination unit 511 determines the type of the recording medium P. The process proceeds to step S22.
　ステップＳ２２において、電圧制御部５１２は、乾燥部３３０に印加する電圧Ｖを制御する。処理は、ステップＳ２４に進む。 In step S22, the voltage control unit 512 controls the voltage V applied to the drying unit 330. The process proceeds to step S24.
　ステップＳ２４において、排出部５００は、記録媒体Ｐを排出トレイ５０２に排出する。そして、処理は終了する。 In step S24, the discharge unit 500 discharges the recording medium P to the discharge tray 502. Then, the process ends.
　以上、図面を参照しながら実施形態について説明した。ただし、本発明は、上記の実施形態に限られるものではなく、その要旨を逸脱しない範囲で種々の態様において実施することが可能である。図面は、理解し易くするために、それぞれの構成要素を主体に模式的に示しており、図示された各構成要素の厚み、長さ、個数等は、図面作成の都合上から実際とは異なる場合がある。また、上記の実施形態で示す各構成要素の形状、寸法等は一例であって、特に限定されるものではなく、本発明の構成から実質的に逸脱しない範囲で種々の変更が可能である。 The embodiment has been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be implemented in various aspects without departing from the gist thereof. The drawings are schematically shown mainly for each component for easy understanding, and the thickness, length, number, etc. of each component shown are different from the actual ones for the convenience of drawing creation. In some cases. Further, the shape, dimensions, and the like of each component shown in the above embodiment are merely examples, and are not particularly limited, and various changes can be made within a range that does not substantially deviate from the configuration of the present invention.
　本発明は、インクジェット記録装置の分野に利用可能である。 The present invention can be used in the field of inkjet recording devices.

Claims (8)

  1. 　記録媒体に超音波を送受信する超音波センサーと、
    　前記記録媒体の種別を判別する判別部と、
    　前記記録媒体にインクを射出する画像形成部と、
    　前記記録媒体に射出された前記インクを乾燥させる乾燥部と、
    　前記記録媒体の前記種別に基づいて、前記乾燥部に供給する電圧を制御する電圧制御部と
    　を備える、インクジェット記録装置。     An ultrasonic sensor that sends and receives ultrasonic waves to a recording medium,
    A discriminating unit for discriminating the type of the recording medium and
    An image forming unit that ejects ink onto the recording medium,
    A drying portion for drying the ink ejected onto the recording medium, and a drying portion.
    An inkjet recording apparatus including a voltage control unit that controls a voltage supplied to the drying unit based on the type of the recording medium.
  2. 　前記乾燥部は、
    　前記記録媒体に向けて気流を発生させるファン部
    　を含み、
    　前記電圧制御部は、前記ファン部に印加する電圧を制御する、請求項１に記載のインクジェット記録装置。     The dry part
    A fan unit that generates an air flow toward the recording medium is included.
    The inkjet recording apparatus according to claim 1, wherein the voltage control unit controls a voltage applied to the fan unit.
  3. 　前記乾燥部は、
    　熱源となるヒーター部
    　をさらに含み、
    　前記ファン部は、前記ヒーター部が発した熱を前記記録媒体に向けて送風し、
    　前記電圧制御部は、さらに、前記ヒーター部に印加する電圧を制御する、請求項２に記載のインクジェット記録装置。     The dry part
    Including a heater that serves as a heat source
    The fan unit blows the heat generated by the heater unit toward the recording medium.
    The inkjet recording apparatus according to claim 2, wherein the voltage control unit further controls a voltage applied to the heater unit.
  4. 　前記インクが射出された前記記録媒体を搬送する搬送部をさらに備え、
    　前記搬送部は、搬送ローラーを含み、
    　前記乾燥部は、前記搬送ローラーに対して前記記録媒体の搬送方向上流側に配置される、請求項１に記載のインクジェット記録装置。     A transport unit for transporting the recording medium on which the ink is ejected is further provided.
    The transport unit includes a transport roller.
    The inkjet recording apparatus according to claim 1, wherein the drying unit is arranged on the upstream side of the recording medium in the transport direction with respect to the transport roller.
  5. 　前記超音波センサーは、
    　前記超音波を発信する発信部と、
    　前記記録媒体に発信された前記超音波を受信する受信部と
    　を含む、請求項１に記載のインクジェット記録装置。     The ultrasonic sensor is
    The transmitter that emits the ultrasonic waves and
    The inkjet recording apparatus according to claim 1, further comprising a receiving unit that receives the ultrasonic waves transmitted to the recording medium.
  6. 　前記受信部は、前記記録媒体を透過した透過波を受信する、請求項５に記載のインクジェット記録装置。 The inkjet recording apparatus according to claim 5, wherein the receiving unit receives a transmitted wave transmitted through the recording medium.
  7. 　前記受信部は、前記記録媒体を反射した反射波を受信する、請求項５に記載のインクジェット記録装置。 The inkjet recording apparatus according to claim 5, wherein the receiving unit receives a reflected wave reflected from the recording medium.
  8. 　前記超音波の受信レベルは、前記記録媒体の厚さを示す、請求項５に記載のインクジェット記録装置。 The inkjet recording apparatus according to claim 5, wherein the reception level of the ultrasonic waves indicates the thickness of the recording medium.
PCT/JP2021/011442 2020-04-08 2021-03-19 Inkjet recording device WO2021205848A1 (en)

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JP2004219856A (en) * 2003-01-17 2004-08-05 Canon Inc Image forming apparatus
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