Recording device

By placing the heat source on one end side in the width direction of the recording device in the recording device, and using the design of the air supply duct and the suction duct, the problem of heat transfer affecting the recording quality of the heat source is solved, thereby achieving more efficient drying and more stable ink ejection characteristics.

CN114179512BActive Publication Date: 2025-04-29SEIKO EPSON CORP
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Patent Information

Application Number
CN202111060704.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-09-14
Filing Date
2021-09-10
Publication Date
2025-04-29
Estimated Expiration
2041-09-10

AI Technical Summary

Technical Problem

Before the existing recording device applies the liquid to the recording medium, heat from the heat source may be transferred to the liquid, affecting the discharge characteristics of the ejection head and resulting in a degradation of the recording quality.

Method used

A recording device is designed, wherein the heat source of the drying mechanism is arranged on one end side in the width direction of the recording device, and the standby part is arranged on the other end side. The warm air is blown to the recording surface of the recording medium through the air supply duct, and the warm air is drawn through the suction duct to avoid heat dissipation.

Benefits of technology

The heat of the heat source is effectively suppressed to change the ink viscosity of the recording unit, and the effect on the ejection characteristics of the ejection ink is avoided, thereby improving the recording quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a recording device. The recording device comprises a conveying unit that conveys a recording medium along a conveying path in a conveying direction; a recording unit that performs recording by ejecting ink onto the conveyed recording medium while performing scanning movement in a width direction intersecting the conveying direction; a standby unit that allows the recording unit to standby in a non-recording state; and a drying mechanism that has a heat source and an air supply unit and blows warm air onto the recording surface of the recording medium that is conveyed to the downstream side of the recording unit in the conveying path and has been recorded, wherein the heat source is arranged at one end side in the width direction and the standby unit is arranged at the other end side in the width direction.
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Description

Technical Field

[0001] The present invention relates to a recording apparatus for performing recording by applying liquid to a recording medium. Background Art

[0002] Conventionally, there is known a recording device including a drying unit for drying ink applied to a recording medium, such as the image forming device shown in Patent Document 1. In Patent Document 1, specific drying methods include an infrared heater, a warm air heater, a heating roller, a hot plate, and the like.

[0003] However, there is a problem that sometimes, due to the structure of the recording device and the specifications of the liquid such as ink used, the heat generated by the heat source of the drying unit will be transferred to the liquid before it is applied to the recording medium, thereby affecting the ejection characteristics of the liquid ejection head that applies the liquid, thereby reducing the recording quality.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2019-171639 Summary of the invention

[0005] The recording device of the present invention comprises: a conveying section that conveys a recording medium along a conveying path in a conveying direction; a recording section that performs recording by spraying liquid onto the conveyed recording medium while performing scanning movement in a width direction intersecting the conveying direction; a standby section in which the recording section stands by in a non-recording state; and a drying mechanism that has a heat source and an air supply section and is conveyed to the downstream side of the recording section in the conveying path and blows warm air onto the recording surface of the recording medium on which recording is performed, wherein the heat source is arranged on one end side in the width direction, and the standby section is arranged on the other end side in the width direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a perspective view of the recording device involved in Embodiment 1.

[0007] Figure 2 This is a structural diagram of the recording device involved in Embodiment 1 as viewed from the side.

[0008] Figure 3 A side view showing the conveying path.

[0009] Figure 4 It is a plan view showing the structure of the recording device involved in embodiment 1.

[0010] Figure 5 It is a plan view showing the structure of the recording device involved in embodiment 2. DETAILED DESCRIPTION

[0011] 1. Implementation Method 1

[0012] Reference Figures 1 to 4 Next, the structure of the recording device 100 according to the first embodiment will be described.

[0013] In the coordinates shown in the drawings, the Z-axis direction is the up-down direction, the +Z direction is the up direction, the Y-axis direction is the front-back direction, the +Y direction is the front, the X-axis direction is the left-right direction, the +X direction is the left direction, and the XY plane is the horizontal plane. In addition, in the present embodiment, the X-axis direction is the width direction of the recording device 100.

[0014] The recording device 100 is an inkjet printer that performs recording by ejecting liquid ink onto a recording medium 1 supplied in a roll state based on print data or recording specifications received from an external electronic device such as a connected personal computer or an external storage medium.

[0015] The recording device 100 includes a recording unit 10 , a support unit 20 , a supply unit 30 , a transport unit 40 , a cutting unit 50 , a drying mechanism 60 , a standby unit 70 , an ink storage unit 80 as a liquid storage unit, a control unit 90 , and the like.

[0016] The recording unit 10 includes a recording head 11, a carriage 12, a guide shaft 13, a carriage motor, etc. The carriage motor is not shown in the figure.

[0017] The recording head 11 has a plurality of nozzles for ejecting recording ink as ink droplets. The recording head 11 is mounted on a carriage 12 and performs scanning movement in the X-axis direction, that is, the width direction of the recording device 100 , as the carriage 12 reciprocates in the X-axis direction.

[0018] The guide shaft 13 extends in the X-axis direction and supports the carriage 12 in a slidable state. The carriage motor serves as a driving source when the carriage 12 reciprocates along the guide shaft 13 .

[0019] The recording device 100 repeats the operation of ejecting ink droplets from the recording head 11 while moving the carriage 12 equipped with the recording head 11 along the guide shaft 13 and the operation of moving the recording medium 1 in the conveying direction under the control of the control unit 90, thereby recording a desired image on the recording medium 1. Here, when the area where ink droplets are ejected from the recording head 11 and recorded on the recording medium 1 is defined as the recording area, the conveying direction of the recording medium 1 in the recording area is the Y-axis direction intersecting the X-axis direction in which the recording head 11 performs scanning movement.

[0020] For example, among inks, there are four-color ink sets including black added to three-color ink sets of cyan, magenta, and yellow as ink sets composed of a concentrated ink composition. There are also eight-color ink sets including light cyan, light magenta, light yellow, and light black added to ink sets composed of a light ink composition obtained by diluting the concentration of each color material.

[0021] As a method for ejecting ink droplets, a piezoelectric method is preferably used. The piezoelectric method is a method of recording by applying a pressure corresponding to a recording information signal to the ink stored in a pressure chamber through a piezoelectric element (Piezo element), thereby ejecting ink droplets from a nozzle connected to the pressure chamber.

[0022] The method of ejecting ink droplets is not limited to this, and other recording methods may be used in which ink is ejected in the form of droplets to form a dot group on a recording medium.

[0023] The support part 20 is a plate-like body that is opposite to the recording head 11 and supports the recording medium 1 conveyed in the conveying direction from below in the recording area. In order to suppress the warping of the recording medium 1, the support part 20 may also have an air suction hole that adsorbs the recording medium 1 on the supporting surface that supports the recording medium 1.

[0024] The supply unit 30 can store the roll-shaped recording medium 1. The supply unit 30 includes a support shaft 31 that rotatably supports the roll-shaped recording medium 1. The support shaft 31 is driven by a drive motor under the control of the control unit 90, and can unwind or rewind the recording medium 1 in coordination with the drive of the conveying unit 40. The drive motor is not shown in the figure.

[0025] The conveying unit 40 includes a plurality of conveying rollers 41 and conveys the recording medium 1 in a conveying direction along a conveying path 43. The conveying rollers 41 are driving rollers controlled by the control unit 90, and may include driven rollers 42 that sandwich the recording medium 1 between the conveying rollers 41 and rotate as the conveying rollers 41 rotate.

[0026] The transport path 43 is configured to include a forward path for transporting the recording medium 1 from the supply unit 30 to the recording unit 10 and the cutting unit 50 in sequence, and a reverse path 43 r for reversely rotating the recording medium 1 .

[0027] Reference Figure 3A specific example of the conveying path 43 will be described. Here, the conveying rollers 41 that convey the recording medium 1 from the supply unit 30 to the recording unit 10, the cutting unit 50, and until it is discharged from the cutting unit 50 are referred to as conveying rollers 41a to 41h. In addition, the driven rollers 42 driven by the conveying rollers 41a, 41b, 41e to 41h are referred to as driven rollers 42a, 42b, 42e to 42h, respectively, and the driven roller 42 driven by the conveying rollers 41c and 41d is referred to as driven roller 42cd.

[0028] The transport roller 41 a is a transport roller 41 that sends the recording medium 1 from the supply unit 30 toward the transport roller 41 b .

[0029] The conveying roller 41b is a conveying roller 41 that feeds the recording medium 1 toward the conveying roller 41c, and clamps the recording medium 1 between the driven roller 42b, and when the recording medium 1 on the leading side that has been cut off by the cutting portion 50 is conveyed on the reversing path 43r, the leading end of the recording medium 1 on the trailing side that has been cut off and rewound can be allowed to wait.

[0030] The conveying rollers 41c and 41d are conveying rollers 41 that convey the recording medium 1 conveyed from the supply unit 30 and the recording medium 1 that is reversed and conveyed. The driven roller 42cd is a driven roller 42 that sandwiches the recording medium 1 between the conveying rollers 41c and 41d and rotates driven by the conveying rollers 41c and 41d, and is composed of a roller with a larger diameter than other driven rollers 42 in order to form a reversing path 43r for reversing the recording medium 1.

[0031] The transport roller 41 d is a transport roller 41 that transports the recording medium 1 toward the transport roller 41 e .

[0032] The transport roller 41 e is a transport roller 41 that is located on the upstream side of the support portion 20 and sandwiches and transports the recording medium 1 between the transport roller 41 e and the driven roller 42 e .

[0033] The transport roller 41 f is a transport roller 41 that is located on the downstream side of the support portion 20 and sandwiches and transports the recording medium 1 between the driven roller 42 f .

[0034] The transport roller 41 g is a transport roller 41 that is located on the upstream side of the cutting unit 50 and sandwiches and transports the recording medium 1 between the transport roller 41 g and the driven roller 42 g.

[0035] The conveying roller 41h is a conveying roller 41 that is located on the downstream side of the cutting section 50 and clamps and conveys the recording medium 1 between the driven roller 42h, and is capable of holding the recording medium 1 on the leading side cut by the cutting section 50, that is, the recorded material 2 that has been cut and has completed recording on one recording surface, or discharging the recorded material 2 that has been cut and has completed recording.

[0036] The cutting unit 50 includes a cutter 51 and the like, and under the control of the control unit 90 , cuts the recorded recording medium 1 , and discharges the cut recorded matter 2 to the stacker 54 without being held by the conveying roller 41 h .

[0037] The stacker 54 is provided at the front of the recording apparatus 100 , and can stack and store the recorded materials 2 ejected from the cutting unit 50 .

[0038] The reverse path 43r is a forward path for conveying the recording medium 1 from the conveying roller 41c to the conveying roller 41d and the conveying roller 41e in sequence with the leading side of the recording medium 1 as the front, in order to reverse the recording medium 1 cut by the cutting unit 50, so as to Figure 3 As shown by the dotted arrow direction in FIG. 4 , the cut recording medium 1 is conveyed from the conveying roller 41e to the conveying roller 41c and the conveying roller 41d with the tail side as the front, and then returns to the conveying roller 41e. In other words, the reversing path 43r is a path for conveying the leading side and the trailing side of the recording medium 1 in the opposite manner.

[0039] That is, the recording device 100 includes a reversing path 43 r capable of reversing the recording medium 1 on the upstream side of the recording unit 10 in the transport path 43 .

[0040] When the recorded matter 2 cut by the cutting unit 50 is not discharged to the stacker 54 and is reversed to perform recording on the back side, under the control of the control unit 90, first, the recording medium 1 on the cut rear side is reversed by the conveying rollers 41a to 41g so that the leading end thereof is rewound to the conveying roller 41b, and then the recorded matter 2 held on the conveying roller 41h is reversed by the conveying rollers 41h, 41g, 41f, and 41e so that it is conveyed to the conveying roller 41c via the reversing path 43r. Then, the recorded matter 2 is conveyed while the conveying rollers 41c to 41h are rotated in the forward direction, so that recording is performed on the back side of the recorded matter 2 in the recording unit 10.

[0041] like Figure 4 As shown, the drying mechanism 60 includes a heat source 61 and an air blowing unit 62 , and dries the recording medium 1 by blowing warm air to the recording surface of the recording medium 1 conveyed to the downstream side of the recording unit 10 in the conveyance path 43 and having been recorded.

[0042] The heat source 61 is arranged on the +X side which is one end side in the width direction of the recording device 100, and the standby section 70 is arranged on the -X side which is the opposite side thereof, that is, the other end side in the width direction of the recording device 100. In addition, the heat source 61 is arranged outside the conveying path 43 in the width direction of the recording device 100, and the air supply section 62 is arranged further outside the heat source 61 in the width direction.

[0043] In addition, the heat source 61 may not necessarily be disposed at a position opposite to the standby section 70 in the X-axis direction, but may be disposed on the side opposite to the side where the standby section 70 is disposed across the conveying path 43. In addition, if the heat source 61 is disposed on the side opposite to the side where the standby section 70 is disposed across the conveying path 43, it may be disposed on the sides opposite to the side where the standby section 70 is disposed. Figure 4 That is, the heat source 61 may be arranged on the −X side in the width direction of the recording device 100 , and the standby unit 70 may be arranged on the +X side which is the opposite side.

[0044] As the heat source 61, a PTC heater having excellent self-temperature controllability is preferably used. Here, PTC refers to Positive Temperature Coefficient. As the air supply unit 62, a blower fan is preferably used.

[0045] In addition, if Figure 4 As shown, the drying mechanism 60 includes an air supply duct 63, which is connected to the air supply unit 62 and extends to the conveying path 43, and blows warm air onto the recording surface. The heat source 61 is disposed inside the air supply duct 63, and the air sent from the air supply unit 62 passes through the heat source 61 and is blown from the air supply duct 63 to the recording surface of the recording medium 1 as warm air.

[0046] The air supply duct 63 extends from one end side of the conveying path 43, that is, the +X side, toward the center and tapers at the front, so that warm air is blown onto the recording surface of the recording medium 1 conveyed to the downstream side of the recording area. A warm air outlet is provided at the lower side of the air supply duct 63 extending onto the conveying path 43, and the warm air is blown toward the recording medium 1.

[0047] Since the air duct 63 is tapered at the front, the speed of the warm air sent out from the air duct 63 is faster as it approaches the top. That is, the air duct 63 is configured to effectively dry the air even in a range far from the heat source 61.

[0048] Furthermore, an exhaust section 65 for sucking and discharging air on the conveying path 43 side is provided at a position opposite to the air supply section 62 on the outside of the conveying path 43 in the width direction of the recording device 100, that is, in the X-axis direction. The exhaust section 65 is provided with an air intake duct 66, which is connected to the exhaust section 65 and extends onto the conveying path 43, and sucks the warm air blown onto the recording surface of the recording medium 1.

[0049] The air intake duct 66 extends from the other end side of the conveying path 43, that is, the -X side, toward the center so that the warm air sent out from the air supply duct 63 can be sucked while being blown onto the recording surface of the recording medium 1. The air intake duct 66 extending to the conveying path 43 is provided with an air intake port for warm air, and the warm air blown onto the recording surface of the recording medium 1 is sucked. The exhaust unit 65 discharges the sucked warm air to the outside of the recording device 100. That is, the warm air sent out through the heat source 61 and the air supply unit 62 flows from one end side of the recording device 100 toward the other end side and is discharged.

[0050] The standby section 70 constitutes a position for the recording section 10 to standby in a non-recording state. The standby section 70 has a maintenance function for maintaining the ejection function of the recording section 10, and can perform maintenance on the recording head 11 by moving the recording head 11 to the standby position. Specifically, as maintenance, for example, the clogging of the nozzles of the recording head 11 is eliminated, or flushing and ink suction are performed to improve the ejection characteristics of the ink. That is, the standby section 70 has, as maintenance functions, a function for recovering the flushed ink, a function for sucking the ink, and the like. In addition, as maintenance functions, the standby section 70 may also have a wiping function for wiping the ink attached to the nozzle surface, and a capping function for capping the opening surface of the nozzle of the recording head 11 when not recording to prevent the drying of the ink around the nozzle.

[0051] The ink storage unit 80 includes a tank for storing ink. Ink is supplied from the ink storage unit 80 to the recording head 11 by an ink supply mechanism. The ink supply mechanism is composed of an ink supply channel, such as a pipe that connects the tank and the recording head 11, and an ink pump that supplies ink in the ink supply channel. The ink supply mechanism is omitted in the figure.

[0052] The ink storage section 80 is arranged on the other end side in the width direction of the recording device 100, that is, on the -X side. Figure 4 As shown, the ink storage section 80 is disposed below the standby section 70 .

[0053] In addition, the ink storage unit 80 may be configured to include a cartridge holder on which the ink cartridge can be mounted, instead of a tank for storing ink.

[0054] like Figure 3 As shown, the recording unit 10, the drying mechanism 60, and the reversing path 43r including the driven roller 42cd are arranged at positions where at least a portion of each overlaps at the same height in a side view when the recording device 100 is set in a use state. Since the driven roller 42cd provided for reversing and conveying the recording medium 1 is a roller with a large diameter, the reversing path 43r requires a large space in the height direction. The recording unit 10 and the drying mechanism 60 are arranged so that at least a portion of each overlaps at the same height with the space occupied by the driven roller 42cd in the height direction.

[0055] The control unit 90 includes a CPU and a storage medium such as a RAM and a ROM for performing calculations, and performs centralized control of the entire recording device 100. Specifically, the control unit 90 controls the recording unit 10, the support unit 20, the supply unit 30, the conveying unit 40, the cutting unit 50, the drying mechanism 60, etc. based on the received printing data and the recording specification, and forms a desired recording image on the recording medium 1, thereby producing the recorded object 2.

[0056] According to this embodiment, the following effects can be obtained.

[0057] The recording device 100 includes a conveying unit 40 that conveys a recording medium 1 along a conveying path 43 in a conveying direction; a recording unit 10 that performs recording by ejecting ink onto the conveyed recording medium 1 while scanning in a width direction intersecting the conveying direction; a standby unit 70 that allows the recording unit 10 to standby in a non-recording state; and a drying mechanism 60 that includes a heat source 61 and an air supply unit 62 and blows warm air to the recording surface of the recording medium 1 on which recording is performed and which is on the downstream side of the recording unit 10 conveyed to the conveying path 43. The heat source 61 is arranged at one end side in the width direction, and the standby unit 70 is arranged at the other end side in the width direction. In the recording device 100, since the heat source 61 is arranged at one end side in the width direction and the standby unit 70 is arranged at the other end side in the width direction, it is difficult for the heat generated by the heat source 61 to be transferred to the recording unit 10 that is standing by in the standby unit 70 in a non-recording state. As a result, the viscosity of the ink in the recording unit 10 is prevented from changing due to the heat generated by the heat source 61 and affecting the ejection characteristics of the ejected ink, thereby preventing a decrease in recording quality.

[0058] In addition, the heat source 61 is arranged outside the conveying path 43 in the width direction, and the air supply unit 62 is arranged outside the heat source 61 in the width direction. Since the heat source 61 is arranged at a position closer to the recording medium 1 of the conveying path 43 than the air supply unit 62, heat can be more efficiently transferred to the recording medium 1, that is, drying can be performed more efficiently. In addition, since the air supply unit 62 is arranged outside the heat source 61, the side of the recording device 100 is suppressed from being heated by the heat source 61.

[0059] In addition, the drying mechanism 60 includes an air supply pipe 63 that is connected to the air supply unit 62 and extends onto the conveying path 43 and blows warm air onto the recording surface. Since the air supply pipe 63 is connected to the air supply unit 62 and blows warm air onto the recording surface, the recording medium 1 can be dried more effectively. In addition, since the air supply pipe 63 can be used to make it difficult for the warm air to be dispersed in the recording device 100, the viscosity of the ink in the recording unit 10 is changed due to the heat of the warm air, which affects the ejection characteristics of the ejected ink, thereby suppressing the reduction of the recording quality.

[0060] Furthermore, an exhaust section 65 for sucking and exhausting air on the conveying path 43 side is provided at a position opposite to the air supply section 62 in the width direction, so that the warm air blown to the recording surface of the recording medium 1 on which recording has been performed by the drying mechanism 60 can be exhausted to the outside of the recording device 100. As a result, the viscosity of the ink in the recording section 10 is prevented from changing due to the heat generated by the drying mechanism 60, which affects the ejection characteristics of the recording section 10, thereby preventing the recording quality from being degraded.

[0061] Furthermore, since the air intake duct 66 is provided, which is connected to the exhaust portion 65 and extends to the conveying path 43, and sucks the warm air blown onto the recording surface, the warm air is less likely to be dispersed in the recording device 100. As a result, the viscosity of the ink in the recording portion 10 is reduced due to the heat of the warm air, which affects the ejection characteristics of the ejected ink, thereby preventing the recording quality from being reduced.

[0062] Furthermore, in the recording device 100, the heat source 61 is disposed on one end side in the width direction, and the ink storage section 80 storing ink is disposed on the other end side in the width direction, so that the heat generated by the heat source 61 is less likely to be transferred to the ink storage section 80. As a result, the ink stored in the ink storage section 80 is prevented from being deteriorated, such as the viscosity of the ink being changed due to the heat generated by the heat source 61, thereby preventing the recording quality from being deteriorated.

[0063] In addition, the standby unit 70 has maintenance functions such as flushing, suction, and wiping functions for maintaining the ejection function of the recording unit 10, and since the standby unit 70 is arranged at a position away from the heat source 61, the maintenance function is prevented from being affected by the heat from the heat source 61.

[0064] In addition, a reversing path 43r capable of reversing the recording medium 1 is provided on the upstream side of the recording unit 10 in the conveying path 43, and the recording unit 10, the drying mechanism 60, and the reversing path 43r including the driven roller 42cd are arranged at positions where at least a portion of each overlaps at the same height in a side view when the recording unit 10, the drying mechanism 60, and the reversing path 43r are arranged at different heights. Therefore, the height of the recording device 100 can be made more compact compared to the case where the recording unit 10, the drying mechanism 60, and the reversing path 43r are arranged at different heights.

[0065] In addition, although in the description of the conveying path 43 of the recording medium 1, the conveying rollers 41c and 41d are described as drive rollers that are driven and controlled by the control unit 90, and the larger diameter driven roller 42cd used to constitute the reversing path 43r is described as a driven roller that rotates in a manner driven by the conveying rollers 41c and 41d, it can also be set as follows, that is, the larger diameter driven roller 42cd is composed of a drive roller that is driven and controlled by the control unit 90, and the conveying rollers 41c and 41d are composed of driven rollers that rotate in a manner driven by the larger diameter driving roller.

[0066] 2. Implementation Method 2

[0067] A modification of Embodiment 1 will be described as Embodiment 2. Note that the same components as those of Embodiment 1 are denoted by the same reference numerals and duplicate descriptions are omitted.

[0068] Although in the first embodiment, Figure 4 As shown in the figure, the heat source 61 is arranged outside the conveying path 43 in the width direction of the recording device 100, that is, the X-axis direction, and the air supply unit 62 is arranged outside the heat source 61 in the width direction. Figure 5 As shown, the air blowing section 62 is arranged outside the conveying path 43 in the width direction, and the heat source 61 is arranged outside the air blowing section 62 in the width direction.

[0069] According to the present embodiment, since the heat source 61 is disposed at a position away from the standby section 70 via the air supply section 62, the heat generated by the heat source 61 is not easily transferred to the recording section 10 standing by in the standby section 70 in the non-recording state. As a result, the heat generated by the heat source 61 is suppressed from affecting the ejection characteristics of the recording section 10, thereby suppressing the reduction in recording quality.

[0070] 3. Implementation Method 3

[0071] A modification of Embodiment 1 will be described as Embodiment 3. Note that the same components as those of Embodiment 1 are denoted by the same reference numerals and duplicate descriptions are omitted.

[0072] In Embodiment 1, a PTC heater having good self-temperature controllability is used as a preferred example for heat source 61, and control of the amount of work done by the heat source is not particularly described. Heat source 61 is not limited to such a PTC heater.

[0073] For example, the recording apparatus 100 may be configured so that the output of the drying capacity, that is, the amount of work, of the drying mechanism 60 can be controlled according to the amount of ink ejected onto the recording medium 1 .

[0074] The control unit 90 can grasp the amount of ink ejected onto the recording medium 1 by referring to the print data of the image to be printed. For example, when the amount of ink ejected onto the recording medium 1 is small, it can be dried relatively easily, so a high load is not required for the drying mechanism 60. On the contrary, when the amount of ink ejected onto the recording medium 1 is large, a load of sufficient work to perform drying is required.

[0075] The control unit 90 of this embodiment controls the driving of the heat source 61 and the air supply unit 62 based on the information of the amount of ink obtained by referring to the printing data so that the drying can be fully implemented. Specifically, the greater the amount of ink, the greater the heat generated by the heat source 61 and the greater the air volume of the air supply unit 62. That is, the recording device 100 controls the amount of work done by the drying mechanism 60 according to the amount of ink ejected onto the recording medium 1. In addition, regarding the driving specifications of the heat source 61 and the air supply unit 62 based on the amount of ink, it is preferable to fully evaluate and determine in advance considering the temperature and humidity of the printing environment.

[0076] According to the present embodiment, since the control unit 90 is provided to control the amount of work of the drying mechanism 60 according to the amount of ink ejected onto the recording medium 1, it is possible to implement control to send out sufficient warm air required for drying the recording medium 1. As a result, warm air exceeding the required amount is not sent out, so that the viscosity of the ink in the recording unit 10 is prevented from changing due to the heat generated by the drying mechanism 60, and the ejection characteristics of the recording unit 10 are affected due to the heat generated by the drying mechanism 60, thereby preventing the recording quality from being degraded.

[0077] In the above-mentioned embodiment, the recording medium 1 wound in a roll state is described as an example as the recording medium, but a single-sheet recording medium may be used. When a single-sheet recording medium is used as the object, the supply unit includes a supply mechanism including a separator for supplying the recording medium one by one to the recording unit 10. In addition, the cutting unit 50 may not be provided.

[0078] Explanation of symbols

[0079] 1…recording medium; 2…recording material; 10…recording unit; 11…recording head; 12…slide; 13…guide shaft; 20…support unit; 30…supply unit; 31…support shaft; 40…conveying unit; 41, 41a to 41h…conveying rollers; 42, 42a, 42b, 42cd, 42e to 42h…driven rollers; 43…conveying path; 43r…reversing path; 50…cutting unit; 51…cutter; 54…stacker; 60…drying mechanism; 61…heat source; 62…air supply unit; 63…air supply duct; 65…exhaust unit; 66…intake duct; 70…standby unit; 80…ink storage unit; 90…control unit; 100…recording device.

Claims

1. A recording device comprising: a conveying unit that conveys the recording medium along a conveying path in a conveying direction; a recording unit configured to perform recording by ejecting liquid onto the recording medium being transported while performing scanning movement in a width direction intersecting the transport direction; a standby unit for the recording unit to standby in a non-recording state; a drying mechanism having a heat source and an air supply unit, and blowing warm air to a recording surface of the recording medium on which recording is performed and which is transported to the downstream side of the recording unit in the transport path; The heat source is disposed on one end side in the width direction, and the standby section is disposed on the other end side in the width direction. The heat source is arranged outside the conveying path in the width direction, and the air supply unit is arranged further outside the heat source in the width direction.

2. A recording device comprising: a conveying unit that conveys the recording medium along a conveying path in a conveying direction; a recording unit configured to perform recording by ejecting liquid onto the recording medium being transported while performing scanning movement in a width direction intersecting the transport direction; a standby unit for the recording unit to standby in a non-recording state; a drying mechanism having a heat source and an air supply unit, and blowing warm air to a recording surface of the recording medium on which recording is performed and which is transported to the downstream side of the recording unit in the transport path; The heat source is disposed on one end side in the width direction, and the standby section is disposed on the other end side in the width direction. The air supply unit is arranged outside the transport path in the width direction, and the heat source is arranged outside the air supply unit in the width direction.

3. The recording device according to claim 1 or claim 2, wherein: The drying mechanism includes an air supply duct that communicates with the air supply unit and extends onto the transport path, and blows the warm air onto the recording surface.

4. The recording device according to claim 1 or claim 2, wherein: An exhaust portion is provided at a position opposed to the air supply portion in the width direction, and the exhaust portion sucks and discharges air on the conveying path side.

5. The recording device according to claim 4, wherein: An air intake duct is provided, the air intake duct being communicated with the exhaust portion and extending onto the transport path, and sucking the warm air blown onto the recording surface.

6. The recording device according to claim 1 or claim 2, wherein: The standby unit has a maintenance function of maintaining the ejection function of the recording unit.

7. A recording device comprising: a conveying unit that conveys the recording medium along a conveying path in a conveying direction; a recording unit configured to perform recording by ejecting liquid onto the recording medium being transported while performing scanning movement in a width direction intersecting the transport direction; a standby unit for the recording unit to standby in a non-recording state; a drying mechanism having a heat source and an air supply unit, and blowing warm air to a recording surface of the recording medium on which recording is performed and which is transported to the downstream side of the recording unit in the transport path; A reversing path is provided on the upstream side of the recording unit in the conveying path, and the reversing path is capable of reversing the recording medium. The heat source is disposed on one end side in the width direction, and the standby section is disposed on the other end side in the width direction. The recording unit, the drying mechanism, and the reversing path are arranged at positions where at least parts of each overlap at the same height in a side view when the recording unit, the drying mechanism, and the reversing path are set in a use state.

8. The recording device according to any one of claims 1, 2 and 7, wherein: A control unit is provided for controlling the amount of work performed by the drying mechanism according to the amount of the liquid ejected onto the recording medium.

Citation Information

Patent Citations

  • Drying device, drying method, image formation method and image formation device

    JP2019171639A

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