WO2014002671A1 - Dispositif d'impression à jet d'encre - Google Patents

Dispositif d'impression à jet d'encre Download PDF

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Publication number
WO2014002671A1
WO2014002671A1 PCT/JP2013/064844 JP2013064844W WO2014002671A1 WO 2014002671 A1 WO2014002671 A1 WO 2014002671A1 JP 2013064844 W JP2013064844 W JP 2013064844W WO 2014002671 A1 WO2014002671 A1 WO 2014002671A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
replacement work
temperature
permission request
ink supply
Prior art date
Application number
PCT/JP2013/064844
Other languages
English (en)
Japanese (ja)
Inventor
卯野　哲夫
Original Assignee
コニカミノルタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2014522491A priority Critical patent/JPWO2014002671A1/ja
Publication of WO2014002671A1 publication Critical patent/WO2014002671A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • 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

Definitions

  • the present invention relates to an ink jet recording apparatus.
  • an ink jet recording apparatus that transports a recording medium and forms an image by ejecting ink droplets from a recording head onto the transported recording medium is used.
  • an inkjet recording apparatus there is a need to replace a module such as an inkjet head in order to maintain and recover performance, but it is desired that the operation can be performed safely.
  • the ink jet recording apparatus described in Patent Document 1 is provided with a sensor for detecting opening and closing of the head cover for the purpose of reducing troublesome operations such as shutting off the head power supply that occur during print head replacement work.
  • the head power supply is instructed to be cut off, and further, in accordance with the instruction, it is confirmed by the voltage sensor that the head power supply has been cut off surely, and then notification that the replacement of the print head is allowed is given.
  • a heater is provided to heat ink.
  • the temperature of the ink supply path connected to the ink jet head is also increased, and the operator can be burned not only when replacing the ink supply path connected to the ink jet head but also the ink supply path. In order to prevent this, it is necessary to start the replacement work after the safe temperature has dropped. The worker must wait for the temperature to drop to a safe temperature even when touched, but it is difficult for the operator to know exactly when the temperature is within the safe temperature range. There is a risk of touching or inefficiency over time.
  • the present invention has been made in view of the above-described problems in the prior art, and ensures safe and efficient replacement work that avoids the risk of burns when an operator touches the configuration of an exchange target such as a heated inkjet head. It is an issue to be able to do it.
  • the invention according to claim 1 for solving the above-described problem is an inkjet recording apparatus that forms an image on a recording medium by ejecting ink droplets from a nozzle.
  • An inkjet head having an ink supply path for supplying ink to the nozzle, a pressurizing chamber for applying an ink ejection force from the nozzle, and the pressurizing chamber;
  • An ink supply mechanism for supplying ink to the inkjet head;
  • a heater for heating ink held in the ink supply path of the inkjet head and / or ink held in the ink supply mechanism;
  • a control device that controls the heater and that can input a replacement work permission request for all or a part of the configuration of the inkjet head and the ink supply mechanism;
  • a temperature sensor for detecting the temperature of the configuration relating to the replacement work permission request; With When the replacement work permission request is input, the control device turns off the heater and works to start a replacement work that avoids a burn due to contact with the configuration related to the replacement work
  • the control device refers to a safety reference temperature that defines a temperature that is safe even if touched by an operator, and turns off the heater when the replacement work permission request is input. Based on the detection signal of the temperature sensor, it is monitored whether the temperature of the configuration related to the replacement work permission request is equal to or lower than the safety reference temperature, and the temperature of the configuration related to the replacement work permission request exceeds the safety reference temperature. When the temperature of the configuration related to the replacement work permission request is equal to or lower than the safety reference temperature, a display command for guiding the worker to avoid contact with the configuration related to the replacement work permission request is output.
  • the inkjet recording apparatus according to claim 1, wherein a display command for guiding to start is output.
  • the invention according to claim 3 prevents the worker from contacting the configuration related to the replacement work permission request by closing, and enables the replacement work of the configuration related to the replacement work permission request by the worker by opening.
  • the control device controls locking in a state in which the opening and closing mechanism is closed, and when the replacement work permission request is input, the temperature of the configuration related to the replacement work permission request based on the detection signal of the temperature sensor is The inkjet recording apparatus according to claim 2, wherein when it is determined that the temperature is equal to or lower than a safety reference temperature, the opening / closing mechanism is unlocked.
  • the control device when the replacement work permission request is input, the control device is configured such that the temperature of the configuration related to the replacement work permission request is equal to or lower than the safety reference temperature based on the detection signal of the temperature sensor.
  • the ink jet recording apparatus according to claim 2, wherein the power supplied to the ink jet head is cut off by a time point when it is determined that the ink jet recording is performed.
  • the invention according to claim 5 includes a heater for heating the ink held in the ink supply path of the inkjet head, and a heater for heating the ink held in the ink supply mechanism. It is an inkjet recording device as described in any one.
  • the heater when a replacement work permission request for a configuration such as an ink jet head that holds ink heated by a heater is input, the heater is turned off, and the replacement work permission request is configured based on the detection signal of the temperature sensor.
  • the display command that guides the worker to the start of replacement work avoiding burns due to contact with the battery is output, so the worker can perform safe replacement work that avoids the risk of burns by touching the configuration to be replaced at a high temperature. It can be performed reliably and efficiently.
  • FIG. 1 is a schematic diagram illustrating a main configuration of an ink jet recording apparatus according to an embodiment of the present invention. It is a flowchart which shows the flow of the exchange work permission process which the control apparatus of the inkjet recording device which concerns on one Embodiment of this invention performs.
  • the inkjet recording apparatus 1 of the present embodiment includes a control device 10, a display output device 20, an operation input device 30, an inkjet head 40, an ink supply mechanism 50, an interface 60, and a memory 70. And a cover lock mechanism 80.
  • the control device 10 includes an overall control unit 11, a supply system heater control unit 12, and a head control unit 13.
  • the overall control unit 11 outputs a display command to the display output device 20 and receives an operation input signal input from the operation input device. Further, the overall control unit 11 outputs a control command to the supply system heater control unit 12 and the head control unit 13.
  • the head controller 13 is supplied with a power source A4 for driving the heater and driving the head.
  • an image display device 21 and a patrol lamp 22 are provided.
  • the image display device 21 is configured by a liquid crystal display device or the like, and displays an image based on information input from the overall control unit 11.
  • the patrol lamp 22 is a rotating lamp that emits light in colors such as red, blue, yellow, green, and purple.
  • the operation input device 30 is supplied to the operator's operation and inputs a signal corresponding to the operation to the overall control unit 11.
  • the image display device 21 and the operation input device 30 for example, those integrally configured as a control panel are applied.
  • the operation input device 30 and the image display device 21 may be configured as a communication device connected via a communication network.
  • the inkjet head 40 is formed with a plurality of nozzles 41, 41,... That eject ink droplets.
  • the plurality of nozzles 41, 41,... are arranged with opening openings on the end face of the inkjet head 40 facing the recording medium (not shown).
  • a pressurizing chamber 42 in which the ink ejection force from the nozzle 41 is applied continuously to the nozzle 41 is formed.
  • the head control unit 13 Based on a control command related to image formation from the overall control unit 11, the head control unit 13 generates discharge driving power A 3 for driving the piezoelectric element disposed in the pressurizing chamber 42, and outputs it to the inkjet head 40.
  • an ejection driving power is applied to the piezoelectric element in the pressurizing chamber 42, and ink droplets are ejected from the nozzles 41, 41,... Onto the recording medium, thereby forming an image.
  • the inkjet head 40 is an assembly module serving as a replacement unit.
  • the ink delivery end 53 of the ink supply mechanism 50 is connected to the inkjet head 40.
  • the ink supply mechanism 50 is configured to supply ink to the inkjet head 40, and includes an ink tank (not shown), a pump (not shown) for feeding ink from the ink tank to the inkjet head 40, a pipe, a tube, and the like.
  • An ink flow path (including an ink storage space; the same applies hereinafter) is formed and is configured to hold and flow ink from the ink tank to the ink delivery end 53.
  • a heater 44 for heating the ink held in the nozzle 41, the pressurizing chamber 42 and the ink supply path 43 is provided.
  • a heater 51 for heating the ink held in the ink supply mechanism 50 is provided.
  • the heater 44 and the heater 51 may be provided in contact with members constituting the ink flow path, or may be provided so as to conduct heat without contact.
  • the heater 51 may be provided in the ink tank in addition to the ink supply path ahead of the ink tank. Ink is first heated by the heater 51 as a heat source in the ink supply mechanism 50 and then rises in temperature. Next, while the ink flows into the ink supply path 43 of the inkjet head 40 and is held, the ink is discharged from the nozzle 41 by using the heater 44 as a heat source.
  • the pressure chamber 42 is replenished as the ink is discharged from the nozzle 41.
  • the head controller 13 controls the power supply A1 to the heater 44 based on a control command from the overall controller 11.
  • the supply system heater control unit 12 controls power supply to the heater 51 based on a control command from the overall control unit 11.
  • the heater power source B1 and the heater ON / OFF signal line B2 are connected to the heater connecting portion 53 having a switch function, and based on the heater ON / OFF signal from the supply system heater control portion 12, The configuration in which the heater power B3 is supplied to and cut off from the heater 51 is illustrated. This function is configured in the head controller 13 with respect to the heater 44.
  • a thermistor 45 is attached to the ink supply path 43.
  • the thermistor 45 is for controlling the temperature of the ink in the ink supply path 43.
  • the head control unit 13 that has received a control command related to ink temperature control from the overall control unit 11 controls ON / OFF of the heater 44 so as to reach the target ink temperature based on the signal A2 detected by the thermistor 45.
  • a thermistor 52 is attached to the ink supply mechanism 50.
  • the thermistor 52 is for controlling the ink temperature of the ink supply mechanism 50.
  • the supply system heater control unit 12 that has received a control command related to ink temperature control from the overall control unit 11 controls ON / OFF of the heater 51 so as to reach the target ink temperature based on the signal B4 detected by the thermistor 52. .
  • the thermistor 45 and the thermistor 52 are also used as temperature sensors for detecting the temperature of the configuration related to the replacement work permission request in the replacement work permission process of the ink jet head 40 and the ink supply mechanism 50. That is, the thermistor 45 and the thermistor 52 for controlling the temperature of the ink are used for detecting the temperature of the configuration related to the replacement work permission request.
  • a temperature sensor that detects the temperature of the configuration related to the replacement work permission request may be provided separately.
  • the components that are permitted to be replaced are the inkjet head 40 and the ink supply mechanism 50. In the case of replacement of all of the inkjet head 40 and the ink supply mechanism 50, it is necessary to permit replacement work.
  • FIG. 1 shows two sets as an example, they are not limited to this.
  • the interface 60 is used for inputting information from the outside and outputting information to the outside.
  • the safety reference temperature input via the interface 60 or from the operation input device 30 is stored in the memory 70 in advance.
  • the safety reference temperature defines a temperature that is safe even if touched by an operator.
  • the cover lock mechanism 80 is a mechanism that locks an open / close cover (not shown) that covers the opening of the machine room in which the inkjet head 40 and the ink supply mechanism 50 are installed, and is locked based on the control of the overall control unit 11. ⁇ The lock is released.
  • the opening / closing cover is closed, the operator cannot contact the ink jet head 40 and the ink supply mechanism 50, and when it is open, the operator can contact the ink jet head 40 and the ink supply mechanism 50. Can work.
  • a replacement work permission request is input from the operation input device 30 to the control device 10 (step S1).
  • the control device 10 turns off the heaters 44 and 51 and the head driving power (step S2), and causes the display output device 20 to output a display indicating “Waiting for temperature drop” (step S3).
  • voltage is applied to the thermistors 45 and 52 in order to obtain detection signals from the thermistors 45 and 52.
  • the control device 10 calculates the temperatures of the ink jet head 40 and the ink supply mechanism 50 according to the replacement work permission request based on the detection signals of the thermistors 45 and 52 (step S4).
  • the control device 10 refers to the safety reference temperature, and determines whether or not the temperatures of the inkjet head 40 and the ink supply mechanism 50 have become equal to or lower than the safety reference temperature (step S5). If NO in step S5, that is, if the temperature of the ink jet head 40 or the ink supply mechanism 50 exceeds the safety reference temperature, the control device 10 returns to step S4 to check the temperature of the ink jet head 40 and the ink supply mechanism 50. Continue monitoring.
  • step S5 the display output device 20 outputs a display indicating “replaceable” and the cover.
  • step S6 the process ends.
  • the control device 10 supplies power to the heaters 44 and 51 and the inkjet head 40 to perform a preparation process for the image forming operation. If the cover lock mechanism 80 is not provided, the cover lock release process in step S6 is not performed.
  • the head driving power may be turned off until it becomes YES in step S5 at the latest.
  • the control device 10 determines YES in step S5, that is, when it is determined that the temperature is equal to or lower than the safety reference temperature, the control device 10 cuts off the power supplied to the inkjet head 40 and prepares for replacement.
  • the display composed of the above-described step S3 and step S6 guides the worker to the start of replacement work avoiding burns due to contact with the structure related to the replacement work permission request. Therefore, the display of the patrol lamp 22 is, for example, a display form in which the yellow patrol lamp is turned on when the safety reference temperature is exceeded and the yellow patrol lamp is turned off when the temperature is lower than the safety reference temperature, or the yellow patrol lamp is turned off. At the same time, a display form in which a blue patrol lamp is turned on is applied. In the example shown in FIG. 2, the display by the image display device 21 indicates that “the temperature is waiting to be lowered” when the safety reference temperature is exceeded, and is “replaceable” when the temperature falls below the safety reference temperature.
  • a message indicating “Waiting for temperature decrease” may be displayed, and when the temperature falls below the safety reference temperature, the message indicating “Waiting for temperature decrease” may be simply erased.
  • the disappearance of the active display corresponds to the display. Even in such a display form, the operator waits for the replacement work while displaying “Waiting for temperature drop”, and starts the replacement work when the display indicating “Waiting for temperature drop” disappears. The operator can be guided to the start of the replacement work avoiding the burn caused by the contact with the configuration to be replaced.
  • a display form that does not indicate the reason for waiting such as “processing in progress” or “please wait” can be applied instead of “waiting for temperature drop”.
  • a warning that the temperature is high such as “Caution for high temperature of head”, may be displayed. Even in these displays, the worker can wait for the replacement work during the display, and can start the replacement work when the display disappears (or when “replaceable” is displayed at the same time).
  • a display form that does not use the safety reference temperature can also be applied.
  • a step of displaying the temperature calculated in step S4 after step S4 is provided.
  • Step S4 is executed at regular time intervals, and the calculated temperatures are sequentially updated and displayed.
  • steps S3, S5 and S6 may be adopted as they are or may be abolished. Even when steps S3, S5, and S6 are abolished, it is difficult for the operator to recognize the temperature of the inkjet head 40 or the ink supply mechanism 50 to be replaced by looking at the display of the temperature calculated in step S4 and to touch it. If so, it is possible to wait for the replacement work and start the replacement work when the temperature is safe to touch.
  • the display on the image display device 21 is not limited to display by characters, but may be expressed by symbols or patterns, or a combination thereof. Only one of the display by the image display device 21 and the display by the patrol lamp 22 may be adopted.
  • the input menu for the replacement work permission request for the inkjet head 40 the input menu for the replacement work permission request for the ink supply mechanism 50, and the heat exchange module provided with the heater 51 in the ink supply mechanism 50.
  • An individual input menu such as an input menu for a replacement work permission request may be provided, and the replacement work permission process may be performed for each. Even in such a case, it is preferable to turn off the heater power of both the inkjet head 40 and the ink supply mechanism 50 since heat is transmitted to each other.
  • the configuration in which the heater and the temperature sensor are provided and the burn injury due to the contact is the inkjet head 40 and the ink supply mechanism 50, but only one of the heaters is provided.
  • the present invention can be implemented.
  • the replacement work permission process is performed on at least a configuration provided with a heater.
  • a sound display output device can be employed as a display output device in the above embodiment. In this case, for example, it is performed by starting to output a sound display indicating “replaceable” when the temperature becomes lower than the safety reference temperature.
  • the present invention can be used for recording an image on a recording medium.

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  • Ink Jet (AREA)
  • Coating Apparatus (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

La présente invention vise à permettre à un travail de remplacement sûr, dans lequel un opérateur évite le danger d'être brûlé par le fait de toucher une structure à remplacer, telle qu'une tête à jet d'encre, qui a atteint une température élevée, d'être effectué de façon fiable et efficace. A cet effet, l'invention porte sur un dispositif d'impression à jet d'encre (1), lequel dispositif comporte : une tête (40) ayant une trajectoire d'apport d'encre (43) vers une chambre de pressurisation (42) qui applique une force d'évacuation d'encre à partir de buses (41) ; un mécanisme d'apport d'encre (50) qui apporte de l'encre à la tête ; des éléments chauffants (44, 51) qui chauffent l'encre ; des capteurs de température (45, 52) qui détectent la température de la tête et du mécanisme d'apport d'encre ; un dispositif d'entrée d'opération (30) prévu pour des opérations de l'opérateur ; un dispositif de sortie d'affichage (20) ; et un dispositif de commande (10). Le dispositif de commande éteint les éléments chauffants (S2) quand une demande d'autorisation de travail de remplacement pour la tête et le mécanisme d'apport d'encre a été entrée à partir du dispositif d'entrée d'opération (S1), et délivre en sortie des instructions au dispositif de sortie d'affichage, guidant l'opérateur pour commencer le travail de remplacement de manière à éviter des brûlures résultant du fait de toucher la structure concernée par la demande d'autorisation de travail de remplacement sur la base d'un signal de détection de capteur de température (S3 à S6).
PCT/JP2013/064844 2012-06-29 2013-05-29 Dispositif d'impression à jet d'encre WO2014002671A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014522491A JPWO2014002671A1 (ja) 2012-06-29 2013-05-29 インクジェット記録装置

Applications Claiming Priority (2)

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JP2012-146440 2012-06-29
JP2012146440 2012-06-29

Publications (1)

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WO2014002671A1 true WO2014002671A1 (fr) 2014-01-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109703218A (zh) * 2019-01-18 2019-05-03 张子悦 一种喷绘机的控制系统的实现方法
JP2019155746A (ja) * 2018-03-13 2019-09-19 キヤノン株式会社 印刷装置、制御方法及びプログラム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09295410A (ja) * 1996-03-06 1997-11-18 Canon Inc 画像形成装置及び該装置におけるカートリッジ交換制御方法
JPH10157097A (ja) * 1996-12-02 1998-06-16 Sharp Corp ホットメルトインク供給装置
JP2000094653A (ja) * 1998-09-21 2000-04-04 Canon Inc 記録装置
JP2005131829A (ja) * 2003-10-28 2005-05-26 Sony Corp 液体吐出性能維持方法及び液体吐出装置
JP2005297445A (ja) * 2004-04-14 2005-10-27 Konica Minolta Medical & Graphic Inc インクジェット記録装置
JP2008119936A (ja) * 2006-11-13 2008-05-29 Kyocera Mita Corp インクジェット記録装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09295410A (ja) * 1996-03-06 1997-11-18 Canon Inc 画像形成装置及び該装置におけるカートリッジ交換制御方法
JPH10157097A (ja) * 1996-12-02 1998-06-16 Sharp Corp ホットメルトインク供給装置
JP2000094653A (ja) * 1998-09-21 2000-04-04 Canon Inc 記録装置
JP2005131829A (ja) * 2003-10-28 2005-05-26 Sony Corp 液体吐出性能維持方法及び液体吐出装置
JP2005297445A (ja) * 2004-04-14 2005-10-27 Konica Minolta Medical & Graphic Inc インクジェット記録装置
JP2008119936A (ja) * 2006-11-13 2008-05-29 Kyocera Mita Corp インクジェット記録装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019155746A (ja) * 2018-03-13 2019-09-19 キヤノン株式会社 印刷装置、制御方法及びプログラム
JP6991900B2 (ja) 2018-03-13 2022-01-13 キヤノン株式会社 印刷装置、制御方法及びプログラム
CN109703218A (zh) * 2019-01-18 2019-05-03 张子悦 一种喷绘机的控制系统的实现方法

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