JP2019051647A - Image formation device and drying device - Google Patents

Abstract

To provide an image formation device that can dry a recording medium faster than a device that does not use air heated by a substrate for drying a recording medium, and to provide a drying device.SOLUTION: An image formation device includes: a discharge head for discharging a droplet to a recording medium; a substrate 150 to which an electronic element 152 is mounted; and a guide duct 160 for guiding an air current to a continuous form paper P to which ink discharged by the discharge head adheres. The guide duct 160 is formed with an intake part 164 for taking air that is heated by the substrate 150 therein.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an image forming apparatus and a drying apparatus.

  Patent Document 1 discloses a laser beam that is opposed to a conveyance path of a recording medium on which an image can be recorded by discharging droplets from a recording head and serves as a heat source for evaporating moisture contained in the droplets on the recording medium. An irradiation unit to be irradiated, a limiting member that transmits the laser light at a predetermined transmittance and restricts the evaporated water from reaching the irradiation unit, and heats the limiting member to the limiting member And a dew condensation prevention means for preventing the dew condensation.

JP2015-147347A

  When air is guided to a recording medium to which droplets are attached and the recording medium is dried using the air flow, the air guided to the recording medium is heated in order to dry the recording medium quickly. Is desirable.

  An object of the present invention is to provide an image forming apparatus and a drying apparatus capable of drying a recording medium quickly as compared with a case where air heated by a substrate is not used for drying the recording medium.

The present invention according to claim 1
An ejection unit for ejecting liquid droplets onto a recording medium;
A substrate on which electronic elements are mounted;
A guide unit for guiding an air flow to a recording medium to which droplets discharged by the discharge unit are attached;
Have
The guide unit is an image forming apparatus in which an intake port for taking in air heated by the substrate is formed.

  The present invention according to claim 2 is the drying apparatus according to claim 1, further comprising an irradiation unit that is driven by the substrate, irradiates the recording medium with light, and evaporates water adhering to the recording medium.

The present invention according to claim 3 provides:
An ejection unit for ejecting liquid droplets onto a recording medium;
An irradiation unit that irradiates the recording medium with light, the discharge unit discharges, and evaporates the water in the droplets attached to the recording medium;
A substrate on which the irradiation unit is driven and an electronic element is mounted;
A guide unit for guiding an air flow between the recording medium and the irradiation unit;
Have
The guide portion is an image forming apparatus in which an intake port for taking in air heated by the substrate is formed.

  The present invention according to claim 4 is the image forming apparatus according to claim 3, wherein the guide portion blows air in a direction horizontal to the recording medium.

  The present invention according to claim 5 is the image forming apparatus according to claim 3, wherein the guide portion blows air toward a surface of the recording medium on which the droplets are attached.

  The present invention according to claim 6 further includes a collection unit that is disposed on the opposite side of the guide unit with respect to the irradiation unit in the conveyance direction of the recording medium, and that collects the air guided by the guide unit to the recording medium. An image forming apparatus according to claim 2, comprising:

The present invention according to claim 7 provides:
A cooling device for cooling the irradiation unit;
The image forming apparatus according to claim 1, wherein the intake port is disposed upstream of the cooling device in a moving direction of air.

The present invention according to claim 8 provides:
A cooling device for cooling the irradiation unit;
The image forming apparatus according to claim 1, wherein the guide portion includes a wall portion that divides the inside of the guide portion and a space on the cooling device side.

The present invention according to claim 9 provides:
A substrate on which electronic elements are mounted;
A guide for guiding the air flow to the body to be dried,
Have
The guide unit is a drying device in which an intake port for taking in air heated by the substrate is formed.

The present invention according to claim 10 provides:
An irradiation unit for irradiating the object to be dried with light and evaporating the water adhering to the object to be dried;
A substrate on which the irradiation unit is driven and an electronic element is mounted;
A guide unit for guiding an air flow between the object to be dried and the irradiation unit;
Have
The guide unit is a drying device in which an intake port for taking in air heated by the substrate is formed.

  According to the first aspect of the present invention, it is possible to provide an image forming apparatus capable of drying the recording medium faster than in the case where the air heated by the substrate is not used for drying the recording medium.

  According to the second aspect of the present invention, the recording medium can be dried faster than in the case where the irradiation unit is not provided.

  According to the third aspect of the present invention, it is possible to provide an image forming apparatus that can quickly dry the recording medium as compared with the case where the air heated by the substrate is not used for drying the recording medium.

  According to the fourth aspect of the present invention, the recording medium is less likely to be disturbed by the airflow as compared with the case where the air is blown out toward the surface on which the droplets of the recording medium adhere.

  According to the fifth aspect of the present invention, the recording medium can be dried faster than in the case where an air flow is generated in a direction horizontal to the recording medium.

  According to the sixth aspect of the present invention, it is possible to suppress the diffusion of high-humidity air into the image forming apparatus main body as compared with the case where the recovery unit is not provided.

  According to the seventh aspect of the present invention, it is possible to guide high-temperature air to the recording medium as compared with the case where the intake port is disposed downstream of the cooling device in the air moving direction. .

  According to the eighth aspect of the present invention, high-temperature air can be guided to the recording medium as compared with the case where there is no wall portion separating the inside of the guide portion and the space on the cooling device side.

  According to the ninth aspect of the present invention, it is possible to provide a drying apparatus capable of drying the recording medium faster than in the case where the air heated by the substrate is not used for drying the recording medium.

  According to the tenth aspect of the present invention, it is possible to provide a drying apparatus capable of drying a recording medium faster than in the case where the air heated by the substrate is not used for drying the recording medium.

1 is a diagram illustrating a schematic configuration of an image forming apparatus used in an embodiment of the present invention. It is a figure which shows the drying apparatus which the image forming apparatus shown in FIG. 1 has. It is a figure which shows the guide duct which the image forming apparatus shown in FIG. 1 has. It is a figure which shows the modification of the guide duct which the image forming apparatus shown in FIG. 1 has.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an image forming apparatus 10 according to an embodiment of the present invention. The image forming apparatus 10 includes an image forming apparatus main body 12, and a conveyance mechanism 30 that conveys a continuous paper P that is an example of a recording medium is provided in the image forming apparatus main body 12.

  The transport mechanism 30 includes a support member 32 that rotatably supports continuous paper before use, and a take-up mechanism 34 that winds the continuous paper on which an image is formed, and is fed from the support member 32 of the recording medium. It further has support rolls 42, 44, 46, and 48 for supporting the portions.

  Discharge heads 50Y, 50M, 50C, and 50K are further arranged in the image forming apparatus main body 12. Each of the ejection heads 50Y, 50M, 50C, and 50K is used as an ejection unit that ejects droplets. The ejection heads 50Y, 50M, 50C, and 50K eject yellow ink, magenta ink, cyan ink, and black ink, respectively. An image is formed on.

  The ejection heads 50Y, 50M, 50C, and 50K are disposed so as to form an image at a position where the continuous paper P is transported horizontally, for example, at a position between the support roll 42 and the support roll 44. .

  A drying device 100 is further arranged in the image forming apparatus main body 12. The drying device 100 dries the continuous paper P that has become damp when ink is ejected from the ejection heads 50Y, 50M, 50C, and 50K. Details of the drying apparatus 100 will be described later.

  An auxiliary drying device 800 is further arranged in the image forming apparatus main body 12. The auxiliary drying device 800 is a device for further drying the continuous paper P dried by the drying device 100, and includes a sliding drying member 810 and a winding roll 820 for winding the continuous paper P around the sliding drying member 810. .

  The sliding drying member 810 has a cylindrical shape, for example, and has a heat source 812 inside, and dries the continuous paper P by heating the continuous paper P that moves so as to slide on the outer peripheral portion thereof.

  FIG. 2 shows the drying apparatus 100. As shown in FIG. 2, the drying device 100 includes an irradiation device 110. The irradiation device 110 is an example of an irradiation unit, and is driven by a substrate 140 and a substrate 150, which will be described later. The irradiation device 110 irradiates the continuous paper P with light, and evaporates liquid droplets adhering to the continuous paper P, that is, ink moisture. As the irradiation apparatus 110, for example, a VCSEL (Vertical Cavity Surface Emitting Laser) unit can be used. A plate member 120 made of a material that transmits light, such as glass, is mounted on the irradiation surface 112 of the irradiation device 110.

  For example, two substrates 140 and 150 for driving the irradiation device 110 are mounted on the irradiation device 110. An electronic element 142 and an electronic element 152 are mounted on the substrate 140 and the substrate 150, respectively. For this reason, the air in the vicinity of the substrate 140 and the air in the vicinity of the substrate 150 are heated by the heat generated by the electronic element 142 and the electronic element 142, respectively.

  A cooling device 130 for cooling the irradiation device 110 is mounted on the surface 114 opposite to the irradiation surface 112 of the irradiation device 110. As the cooling device 130, for example, a water cooling jacket can be used.

  When light is irradiated toward the continuous paper P by the irradiation device 110, the ink attached to the continuous paper P is heated, the moisture in the ink is evaporated, and the continuous paper P is dried.

  The drying device 100 further includes a fan device 190. The fan device 190 is an example of a blower device, and generates air toward the substrate 150 from the side opposite to the cooling device 130 to send out air. Here, the direction of the wind generated by the fan device 190 is, for example, horizontal with the substrate 150. The air sent out by the fan device 190 is heated by the substrate 150, that is, by the heat generated by the electronic element 152.

  The drying apparatus 100 further includes a guide duct 160. The guide duct 160 is an example of a guide unit, and guides the air flow generated by the fan device 190 to the continuous paper P to which the ink ejected by the ejection heads 50Y, 50M, 50C, and 50K is attached. For example, the guide duct 160 is disposed downstream of the irradiation device 110 in the transport direction of the continuous paper P. A discharge port 162 for discharging air is formed at one end of the guide duct 160. The discharge port 162 is formed on the continuous paper P in a direction in which air is blown in a direction horizontal to the continuous paper P, for example.

  The guide duct 160 is formed with a plurality of intakes 164 (see FIG. 3), for example. The intake port 164 is formed to take air heated by the substrate 150 into the guide duct 160. Further, the intake port 164 is disposed upstream of the cooling device 130 in the air moving direction (in FIG. 2, it is disposed on the right side of the cooling device 130).

  Further, the guide duct 160 has a wall portion 166. As shown in FIG. 2, the wall part 166 partitions the inside of the guide duct 160 and the space on the cooling device 130 side.

  The guide duct 160 configured as described above is sent out by the fan device 190, takes in the air heated by the substrate 150 from the intake port 164, and discharges the heated air from the discharge port 162 toward the continuous paper P. Then, it guides toward the continuous paper P.

  The drying apparatus 100 further includes a recovery duct 170. The collection duct 170 is an example of a collection unit, and is disposed on the opposite side of the guide duct 160 with respect to the irradiation device 110 in the conveyance direction of the continuous paper P. That is, the collection duct 170 is disposed upstream of the irradiation device 110 in the conveyance direction of the continuous paper P. The recovery duct 170 recovers the air guided by the guide duct 160 toward the continuous paper P. A suction port 172 for sucking air is formed at one end of the recovery duct 170.

  A fan device 174 for discharging the air in the recovery duct 170 is attached to the other end of the recovery duct 170.

  The image forming apparatus 10 further includes a pressing member 54. The pressing member 54 has, for example, a roller shape and is in contact with the continuous paper P at a position opposite to the drying device 100 with respect to the continuous paper P and at a position opposite to the discharge port 162 with respect to the continuous paper P. Are arranged to be. The holding member 54 holds the continuous paper P from the surface opposite to the drying device 100, and the guide duct 160 discharges air, thereby suppressing the movement of the continuous paper P due to the airflow.

  FIG. 3 shows a guide duct 160. As illustrated in FIG. 3, the guide duct 160 is formed with the above-described discharge port 162 and the above-described intake port 164. Further, the guide duct 160 has the above-described wall portion 166.

  FIG. 4 shows a modification of the guide duct 160. In the above-described guide duct 160, the discharge port 162 is formed in the direction in which air is sent in a direction horizontal to the continuous paper P. On the other hand, in this modification, a discharge port 162 is formed in the guide duct 160 so as to blow out toward the continuous paper P.

DESCRIPTION OF SYMBOLS 10 ... Image forming apparatus 50Y, 50M, 50C, 50K ... Discharge head 100 ... Drying device 110 ... Irradiation device 130 ... Cooling device 150 ... Substrate 152 ... Electronic element 160. ..Guide duct 162... Discharge port 164 .. intake port 166... Wall portion 170 .. recovery duct 190.

Claims (10)

An ejection unit for ejecting liquid droplets onto a recording medium;
A substrate on which electronic elements are mounted;
A guide unit for guiding an air flow to a recording medium to which droplets discharged by the discharge unit are attached;
Have
The image forming apparatus in which the guide portion is formed with an intake port for taking in air heated by the substrate.   The drying apparatus according to claim 1, further comprising an irradiation unit that is driven by the substrate, irradiates the recording medium with light, and evaporates water adhering to the recording medium. An ejection unit for ejecting liquid droplets onto a recording medium;
An irradiation unit that irradiates the recording medium with light, the discharge unit discharges, and evaporates the water in the droplets attached to the recording medium;
A substrate on which the irradiation unit is driven and an electronic element is mounted;
A guide unit for guiding an air flow between the recording medium and the irradiation unit;
Have
The image forming apparatus in which the guide portion is formed with an intake port for taking in air heated by the substrate.   The image forming apparatus according to claim 3, wherein the guide portion blows air in a direction horizontal to the recording medium.   The image forming apparatus according to claim 3, wherein the guide portion blows air toward a surface of the recording medium on which a droplet is attached.   6. The apparatus according to claim 2, further comprising a collection unit that is disposed on a side opposite to the guide unit with respect to the irradiation unit in a conveyance direction of the recording medium and collects the air guided by the guide unit to the recording medium. Image forming apparatus. A cooling device for cooling the irradiation unit;
The image forming apparatus according to claim 1, wherein the intake port is disposed upstream of the cooling device in a moving direction of air. A cooling device for cooling the irradiation unit;
The image forming apparatus according to claim 1, wherein the guide portion includes a wall portion that divides the inside of the guide portion and a space on the cooling device side. A substrate on which electronic elements are mounted;
A guide for guiding the air flow to the body to be dried,
Have
The said guide part is a drying apparatus in which the intake port which takes in the air heated with the said board | substrate is formed. An irradiation unit for irradiating the object to be dried with light and evaporating the water adhering to the object to be dried;
A substrate on which the irradiation unit is driven and an electronic element is mounted;
A guide unit for guiding an air flow between the object to be dried and the irradiation unit;
Have
The said guide part is a drying apparatus in which the intake port which takes in the air heated with the said board | substrate is formed.

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