JP2012061621A - Recording device and control method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress deterioration in image quality of an image.SOLUTION: This recording device has: a supporting member that supports and heats a recording medium while coming into contact with the recording medium; a recording part that is supported by the supporting member and records an image on the heated recording medium; a cleaning part for cleaning the recording part; a switching part for switching between the contact state and a noncontact state; and a controller that controls the switching part such that the supporting member and the recording medium are in the noncontact state when allowing the cleaning part to make cleaning of the recording part.

Description

  The present invention relates to a recording apparatus and a control method for the recording apparatus.

  Recording devices such as ink jet printers are already well known.

In such a recording apparatus, in a contact state in contact with the recording medium, the recording medium is supported and heated, and an image is recorded on the heated recording medium supported by the supporting section. And a recording unit.

Japanese Patent Laying-Open No. 2005-246908

By the way, in the above recording apparatus, the recording medium may be wrinkled by being heated by the support portion for a long time. The wrinkles cause physical interference and recording unevenness with respect to the recording medium of the recording unit, which may cause deterioration in image quality.

The present invention has been made in view of such a problem, and an object thereof is to suppress deterioration in image quality of an image.

The main aspect of the present invention is a support unit for supporting and heating the recording medium in a contact state with the recording medium, and a recording unit for recording an image on the heated recording medium supported by the support unit. A cleaning unit that cleans the recording unit, a switching unit that switches between the contact state and the non-contact state, and the support unit and the recording medium that are not in contact with each other when the cleaning unit cleans the recording unit. And a controller for controlling the switching unit so as to be in a state.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

2 is a schematic front view of the printer 11. FIG. 3 is a schematic sectional view of a platen 28. FIG. 2 is a block diagram of the overall configuration of a printer 11. FIG. FIG. 6 is an explanatory diagram for explaining an operation example of the printer. FIG. 6 is a schematic diagram illustrating a portion where wrinkles occur in a printer according to a comparative example.

At least the following will be made clear by the description of the present specification and the accompanying drawings.
A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A cleaning unit for cleaning the recording unit;
A switching unit for switching between the contact state and the non-contact state;
A controller that controls the switching unit so that the support unit and the recording medium are in the non-contact state when the cleaning unit cleans the recording unit;
A recording apparatus comprising:
According to such a recording apparatus, it is possible to suppress deterioration of the image quality.

A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A switching unit for switching between the contact state and the non-contact state;
A controller that can accept the job for recording the image and controls the switching unit so that the support unit and the recording medium are in the non-contact state when the job is not executed. When,
A recording apparatus comprising:
According to such a recording apparatus, it is possible to suppress deterioration of the image quality.

Moreover, the said switching part is good also as switching the said contact state and the said non-contact state by moving the said support part.
In such a case, it is possible to suppress the deterioration of the image quality without impairing the performance of the recording apparatus.

Further, the support portion has a plurality of holes in a support surface that supports the recording medium,
A blower for blowing air from the plurality of holes toward the recording medium;
The controller is
The switching unit may be controlled so that the support unit and the recording medium are in the non-contact state, and the air blower directed to the recording medium spaced from the support unit may be executed by the blower. Good.
In such a case, it is possible to reliably maintain a state where the support portion and the recording medium are not in contact with each other.

Next, a support unit that supports and heats the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A cleaning unit for cleaning the recording unit;
Preparing a recording device having a switching unit that switches between the contact state and the non-contact state;
Controlling the switching unit so that the support unit and the recording medium are in the non-contact state when the cleaning unit cleans the recording unit;
A control method for a recording apparatus, comprising:
According to such a control method of the recording apparatus, it is possible to suppress deterioration in image quality.

A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
Preparing a recording device having a switching unit that switches between the contact state and the non-contact state;
Controlling the switching unit such that a job for recording the image can be received and the support unit and the recording medium are in the non-contact state when the job is not executed. When,
A control method for a recording apparatus, comprising:
According to such a control method of the recording apparatus, it is possible to suppress deterioration in image quality.

=== About Configuration Example of Printer 11 ===
Hereinafter, an embodiment in which the recording apparatus of the present invention is embodied in an ink jet printer (hereinafter referred to as a printer) will be described with reference to the drawings. In the following description, when referring to “up and down direction” and “left and right direction”, the direction indicated by the arrow in FIG.
In addition, the “front-rear direction” refers to a direction orthogonal to the paper surface in FIG.

FIG. 1 is a schematic front view of the printer 11 of the present embodiment.
As shown in FIG. 1, a printer 11 as a recording apparatus according to the present embodiment includes a main body unit 14 that sequentially prints on a roll paper 12 fed out from a feed unit 13 that feeds out a roll paper 12 as an example of a recording medium. Winding unit 1 for winding the roll paper 12 on which the recording operation has been performed in the main body unit 14
And 5. The main body 14 includes a rectangular parallelepiped main body case 16. Further, on the left side of the main body case 16 on the upstream side in the conveyance direction of the roll paper 12, the feeding unit 1 is provided.
3 is disposed. Further, the main body case 1 on the downstream side in the transport direction of the roll paper 12
On the right side of 6, a winding unit 15 is disposed.

The feeding portion 13 includes a support plate 17 that extends leftward from the lower end portion of the left surface of the main body case 16. Then, on the left end portion of the support plate 17, the front side (the front side in the direction orthogonal to the paper surface in FIG. 1).
A winding shaft 18 extending toward the center is supported rotatably with respect to the support plate 17. Further, the roll paper 12 previously wound in a roll shape is supported on the winding shaft 18 so as to be rotatable integrally with the winding shaft 18.

Further, the feeding portion 13 includes a plate-like feeding stand 19 that extends horizontally from the central portion of the left surface of the main body case 16 toward the left. A relay roller 20 is rotatably provided at the front end of the feeding table 19 so as to wind the roll paper fed from the winding shaft 18 and guide it to the upper surface of the feeding table 19. Then, the roll paper 12 is placed on the right side (the main body portion 1
4 side).

A region above the central portion in the vertical direction in the main body case 16 of the main body 14 is a printing chamber 22 for printing on the roll paper 12.

On the left wall of the main body case 16, a carry-in port (not shown) for carrying the roll paper 12 into the main body case 16 from the upper surface of the feeding table 19 is provided. And the relay roller 23 is rotatably provided in the main-body part 14 so that it may oppose the said carrying-in port in the vicinity position.

In addition, the relay roller 2 is located obliquely below the relay roller 23 in the main body case 16.
4 is rotatably provided. Then, after the roll paper 12 is carried into the main body case 16, the roll paper 12 is wound around the relay roller 24 from the upper left side and conveyed toward the position from the left end of the printing chamber 22.

A first transport roller pair 25 that sandwiches the roll paper 12 and applies transport force is provided at a position near the left end of the printing chamber 22. The first transport roller pair 25 includes a first transport motor 26.
(Refer to FIG. 3) a first drive roller 25a connected to be able to transmit power, and a first driven roller 25b arranged to face the first drive roller 25a across the roll paper 12. It is constituted by. Then, the roll paper 12 wound around the first drive roller 25a from the lower left side is accompanied by the rotation drive of the first drive roller 25a, and the printing chamber 22 is printed.
The inside is horizontally conveyed from the first conveying roller pair 25 in the right direction. In addition, a platen 28 as an example of a support portion is provided in a region on the right side of the first transport roller pair 25 in the printing chamber 22. That is, the first transport roller pair 25 is provided in the vicinity of the upstream end of the platen 28.

The platen 28 is for supporting the roll paper 12 in contact with the roll paper 12. As shown in FIG. 2, the platen 28 has a support base 28a having a substantially box shape with an open top and a short plate-like shape that closes the upper opening of the support base 28a above the support base 28a. It is comprised from the mounting board 28b. The placement plate 28 b serves as a support surface PL that supports the roll paper 12.

Further, the platen 28 is movable in the vertical direction, and can be not only in the contact state described above but also in a non-contact state where the platen 28 is not in contact with (separated from) the roll paper 12. That is, the printer 11 according to the present embodiment includes a switching unit 70 as an example of a switching unit that switches between the contact state and the non-contact state by moving the platen 28 in the vertical direction. Then, the switching unit 70 lowers the platen 28 in the contact state, thereby separating the platen 28 from the roll paper 12 (the non-contact state (see the lower diagram in FIG. 4)), and the platen 28 in the non-contact state. By raising
The platen 28 is brought into contact with the roll paper 12 (the contact state is set (see the upper diagram of FIG. 4)). In the present embodiment, a known mechanism including a platen moving motor (not shown) and a ball screw 70a is used as the switching unit 70. Further, when the non-contact state is reached will be described in detail later.

Further, the platen 28 penetrates the support surface PL (mounting plate 28b) in a large number (only five are shown in FIG. 2) penetrating the mounting plate 28b in the vertical direction (thickness direction of the mounting plate 28b). A hole A (corresponding to a plurality of holes) is provided. Further, an exhaust port B is formed in the left side wall portion of the support base 28a, and an exhaust fan 29 is connected through the exhaust port B. When the exhaust fan 29 rotates, the air in the space enclosed between the support base 28a and the mounting plate 28b is exhausted to the outside through the exhaust port B. That is, the space enclosed between the support base 28 a and the mounting plate 28 b is a negative pressure chamber 31 that generates a negative pressure based on the rotation of the exhaust fan 29. When a negative pressure is generated in the negative pressure chamber 31 based on the rotation of the exhaust fan 29, the negative pressure similarly acts in the through hole A of the mounting plate 28 b communicating with the negative pressure chamber 31. Therefore, the through hole A of the mounting plate 28b
Is configured to function as a suction hole for applying an attractive force to the roll paper 12 transported on the support surface PL of the platen 28. The negative pressure chamber 31 is provided with a pressure detection sensor 32 that detects a pressure change in the negative pressure chamber 31 accompanying the rotation of the exhaust fan 29.

An intake port C is formed in the right side wall portion of the support base 28a, and an intake fan 80 as an example of a blower is connected through the intake port C. When the intake fan 80 rotates, the outside air is sucked into the space (that is, the negative pressure chamber 31) surrounded by the support base 28a and the mounting plate 28b through the intake port C. Then, the air sucked into the space is discharged from the through hole A and sent from the through hole A toward the roll paper 12. The exhaust fan 29 and the intake fan 80 constitute the first air blowing unit 50.

A heater unit 61 for heating the platen 28 is provided below the platen 28.
Is built-in. The platen 28 heated by the heater unit 61 is
The roll paper 12 is heated while being in contact with the roll paper 12. When the roll paper 12 is heated by the platen 28, drying of the ink ejected onto the roll paper 12 is promoted. The platen 28 is provided with a temperature detection sensor 62 that detects the temperature of the platen 28. Based on the temperature detected by the temperature detection sensor 62, the controller 110 (described later) indicates that the platen 28 has a predetermined temperature (for example, 45 ° C.).
), The heating amount of the heater unit 61 is controlled.

As shown in FIG. 1, a second conveyance roller pair 33 that sandwiches the roll paper 12 and applies a conveyance force is provided in a region on the right side of the platen 28 in the printing chamber 22. That is, the second transport roller pair 33 is provided in the vicinity of the downstream end portion of the platen 28. The second transport roller pair 33 includes a second drive roller 33a connected to the second transport motor 34 (see FIG. 3) so as to be able to transmit power, and a roll paper 1 with respect to the second drive roller 33a.
2 and a second driven roller 33b disposed so as to face each other.

The second driving roller 33a includes the first conveying roller pair 25 to the support surface PL of the platen 28.
A roll paper 12 transported in the horizontal right direction is wound around from the upper left side. And
The conveyance direction of the roll paper 12 is changed from the horizontal right direction to the vertical downward direction. In addition, the roll paper 12 is changed to the vertically downward direction by the second drive roller 33a,
It is conveyed vertically downward. The upper surface of the second drive roller 33a is the first drive roller 25.
The upper surface of a and the support surface PL of the platen 28 are flush with each other. Also,
The second driven roller 33 b is configured to abut only on the edge in the width direction (front-rear direction) on the printing surface of the roll paper 12. The first transport motor 26 and the second transport motor 34
And so on constitute a transport unit 21.

Guide rails 3 extending in the left-right direction are provided on the front and rear sides of the platen 28 in the printing chamber 22.
5 (indicated by a two-dot chain line in FIG. 1) are provided in pairs. Guide rail 3
The upper surface of 5 is higher than the support surface PL of the platen 28. Both guide rails 3
On the upper surface of 5, a short plate-like carriage unit 35 a is supported so as to be capable of reciprocating in the left-right direction along both guide rails 35.

A head unit 36 as an example of a recording unit is supported on the lower surface of the carriage unit 35a. A large number of ink ejection nozzles (not shown) are arranged in the front-rear direction on the lower surface of the head unit 36. A valve unit 37 for temporarily storing ink is provided on the upper wall of the main body case 16 in the printing chamber 22. The valve unit 37 is
The head unit 36 is connected via an ink supply tube (not shown). And
The head unit 36 is supported by the platen 28 by ejecting the ink supplied from the valve unit 37 toward the surface of the roll paper 12 that has been transported from the ink discharge nozzle onto the platen 28 and stopped. The image is recorded on the heated roll paper 12.

Accordingly, an area from the left end to the right end of the platen 28 in the middle of the conveyance path of the roll paper 12 is a print area R in which printing is performed on the roll paper 12 by ink ejection from the ink discharge nozzles. Yes. The roll paper 12 is intermittently transported along the transport path in units of areas corresponding to the print areas R.

A second air blowing unit 63 is provided on the upper portion of the main body case 16. The blower fan of the second blower unit 63 takes in air from the outside of the printer 11 and sends the air toward the roll paper 12 supported by the platen 28, thereby promoting drying of the ink ejected on the roll paper 12. It has come to be.

The roll paper 12 wound around the second drive roller 33a and conveyed vertically downward is placed on a reversing roller 38 rotatably disposed at a position below the second drive roller 33a in the main body case 16. Wrapped from the upper left side and conveyed slightly diagonally upward to the right. Then, the roll paper 12 conveyed from the reversing roller 38 is wound around the relay roller 39 provided to be rotated to the right of the reversing roller 38 in the main body case 16 from the lower left side, and the main body case 16 is passed through the main body case 16. It is conveyed upward along the right wall of 16. The roll paper 12 that has been printed in the printing region R is naturally dried in the process of being conveyed through the main body case 16.

Further, the right wall of the main body case 16 is provided with a carry-out port (not shown) for carrying the roll paper 12 to the take-up unit 15 side. Further, a delivery roller 40 is rotatably provided at a position facing the carry-out port in the vicinity of the carry-out port in the main body case 16. And the sending-out roller 40 sends out the roll paper 12 to the winding part 15 side through the said carrying-in port.

The winding unit 15 includes a rectangular parallelepiped winding frame 41. A relay roller 42 is rotatably provided at the upper end of the winding frame 41. Then, the roll paper 12 sent out from the carry-in port is wound around the relay roller 42 from the upper left side and is conveyed obliquely downward to the right.

A winding drive shaft 43 extending toward the front is supported on the winding frame 41 so as to be rotatable with respect to the winding frame 41. The roll paper 12 conveyed from the relay roller 42 toward the right oblique direction is wound around the winding drive shaft 43. The roll paper 12 is wound up sequentially as the winding drive shaft 43 rotates.

Further, the main body portion 14 includes a cleaning unit 66 (corresponding to a cleaning portion) on the upper left side in the main body portion 14. The cleaning unit 66 is a mechanism that cleans the head unit 36 so that the head unit 36 can appropriately eject ink at a predetermined timing such as when a recording operation starts or after a predetermined time has elapsed since the previous cleaning. The cleaning unit 66 is a suction pump (not shown) as a negative pressure generation source for sucking ink.
A wiper (not shown) for wiping and cleaning the discharge port surface of the head unit 36 is provided. The cleaning of the head unit 36 is to eliminate nozzle clogging or remove ink or dust adhering to the nozzle arrangement surface by performing suction with a suction pump or wiping with a wiper. When cleaning the head unit 36,
The carriage unit 35a conveys the head unit 36 to the cleaning unit 66. The cleaning operation of the cleaning unit 66 takes about 3 to 10 minutes per time.

Next, a control configuration of the printer 11 according to the present embodiment will be described with reference to FIG. The printer 11 that has received a print command (print data) from the external device 60 causes each unit (conveyance unit 21, carriage unit 35a, head unit 36, valve unit 37, heater unit 61, first air blowing unit 50, The second air blowing unit 63 and the switching unit 70) are controlled to record an image on the continuous paper S. In addition, the detector group 150 monitors the situation in the printer 11, and the controller 110 controls each unit based on the detection result. The detector group 150 includes the pressure detection sensor 32 and the temperature detection sensor 62 described above.

The controller 110 is a control unit for controlling the printer 11. The interface unit 111 is for transmitting and receiving data between the external device 60 and the printer 11. The CPU 112 is an arithmetic processing device for controlling the entire printer 11. The memory 113 is for securing an area for storing a program of the CPU 112, a work area, and the like. The CPU 112 controls each unit by a unit control circuit 114 according to a program stored in the memory 113.

=== Regarding Operation Example of Printer 11 ===
Next, an operation example of the printer 11 configured as described above will be described with reference to FIG. FIG. 4 is an explanatory diagram for explaining an operation example of the printer 11.

The controller 110 performs a recording operation control and a cleaning operation control in the printer 11 by reading a program of a processing routine related to the operation of the printer 11 from the memory 113 and executing the program. In this embodiment, it is assumed that print data is input in advance from the external device 60 to the controller 110 before the controller 110 executes a routine program relating to the recording operation and the cleaning operation.

When a print command (print data) is received from the external device 60, the controller 110 executes a recording operation. When the recording operation is executed, the controller 110 causes the head unit 36 to eject ink to the roll paper 12 positioned on the support surface PL of the platen 28. At this time, the upper diagram of FIG. As shown, the platen 28 supports the roll paper 12 in contact with the roll paper 12, and penetrates by rotation of the exhaust fan 29 (at this time, the intake fan 80 is stationary). By the negative pressure acting in the hole A, the through hole A functions as the aforementioned suction hole.

When the recording operation is continuously performed for a predetermined time while the roll paper 12 is in contact with the platen 28 and sucked, the controller 110 interrupts the recording operation and executes the cleaning operation. That is, the controller 110 causes the carriage unit 35 a to transport the head unit 36 to the cleaning unit 66 and causes the cleaning unit 66 to clean the head unit 36. In this case (in the present embodiment, after the recording operation is finished and before the cleaning of the head unit 36 by the cleaning unit 66 is started), the controller 110 controls the switching unit 70 to The switching unit 70 controlled by 110 lowers the platen 28 in a contact state to move the platen 28 away from the roll paper 12 (set to a non-contact state). In this case (in the present embodiment, after the recording operation is finished and before the cleaning of the head unit 36 by the cleaning unit 66 is started), the controller 110, in addition to the movement of the platen 28, The rotating exhaust fan 29 is stopped, and instead the intake fan 80 is rotated so that the wind is sent from the through hole A toward the roll paper 12. As a result, when the cleaning unit 66 cleans the head unit 36, the platen 28 and the head unit 36 are brought into a non-contact state as shown in the lower diagram of FIG. That is, the controller 110 controls the switching unit 70 so that the platen 28 and the roll paper 12 are not in contact with each other when the cleaning unit 66 cleans the head unit 36, and rolls separated from the platen 28. The intake fan 80 is caused to execute air blowing toward the paper 12.

When the platen 28 and the roll paper 12 are not in contact with each other and the cleaning operation is continuously performed for a predetermined time, the controller 110 resumes the interrupted recording operation. And
At this time (in the present embodiment, after the cleaning of the head unit 36 by the cleaning unit 66 and before the start of the recording operation), the controller 110
The switching unit 70 controlled by the controller 110 controls the switching unit 70 to raise the platen 28 in a non-contact state, thereby bringing the platen 28 into contact with the roll paper 12 (a contact state). At this time (in this embodiment, after the cleaning of the head unit 36 by the cleaning unit 66 and before the start of the recording operation), the controller 110 rotates in addition to the movement of the platen 28. The stationary intake fan 80 is stopped, and the exhaust fan 29 is rotated instead.
To function as a suction hole.

Note that in both the recording operation and the cleaning operation described above, the heater unit 61 is in operation (it remains ON), and the state in which the platen 28 is heated by the heater unit 61 is continued.

=== Effectiveness of Printer 11 According to the Present Embodiment ===
As described above, the printer 11 according to the present embodiment is in contact with the roll paper 12, supports the roll paper 12, and heats the platen 28, and is supported by the platen 28 and heated. A head unit 36 that records an image on the rolled paper 12, a cleaning unit 66 that cleans the head unit 36, a switching unit 70 that switches between the contact state and the non-contact state, and the cleaning unit 66 that cleans the head unit 36. And a controller 110 that controls the switching unit 70 so that the platen 28 and the roll paper 12 are in the non-contact state. This makes it possible to suppress deterioration in image quality.

The above will be described with reference to FIG. 5 while comparing the printer 11 according to the present embodiment and the printer 11 according to the comparative example. FIG. 5 is a schematic diagram illustrating a portion where wrinkles occur in the printer 11 according to the comparative example. Similar to the printer 11 according to the present embodiment, the printer 11 according to the comparative example is supported by the platen 28 that supports and heats the roll paper 12 in a contact state in contact with the roll paper 12, and the platen 28. In addition, a head unit 36 that records an image on the heated roll paper 12 and a cleaning unit 66 that cleans the head unit 36 are provided. However, the switching unit 70
Is not provided, and this causes the cleaning unit 66 to include the head unit 36.
The platen 28 and the roll paper 12 are also in contact with each other when cleaning the sheet.

In the printer 11 according to the comparative example, because the switching unit 70 is not provided, the roll paper 12 and the platen 28 are in contact with each other during the cleaning operation, and the roll paper 12 is heated by the platen 28. The Rukoto. As is well known, since the cleaning operation takes a long time, the roll paper 1 can be used during the cleaning operation.
2 is heated for a long time by the platen 28, and the portion of the roll paper 12 on the platen 28 (indicated by symbol P1 in FIG. 5) is excessively dried. On the other hand, the portion of the roll paper 12 (indicated by symbol P2 in FIG. 5) that is adjacent to the portion P1 and located upstream of the portion P1 in the transport direction is hardly dried, so that the portions P1 and P2 are dried. The difference in the degree of remarkably becomes remarkable. Due to this, in the printer 11 according to the comparative example, the roll paper 12
Inconvenience that wrinkles (indicated by symbol W in FIG. 5) occur has occurred. The wrinkles cause physical interference with the roll paper 12 of the head unit 36 and printing unevenness (recording unevenness).
As a result, the image quality deteriorates.

In contrast, the printer 11 according to the present embodiment includes the switching unit 70, and the platen 28 and the roll paper 12 are brought into the non-contact state when the controller 110 causes the cleaning unit 66 to clean the head unit 36. Thus, the switching unit 70 is controlled. Therefore, the air between the platen 28 and the roll paper 12 becomes a heat insulating layer,
During the cleaning operation, the roll paper 12 is heated by the platen 28 for a long time.
It is appropriately avoided that the portion P1 of the upper roll paper 12 is excessively dried, and the above-described inconvenience of causing wrinkles is suppressed. Therefore, the physical interference and printing unevenness described above do not occur,
Degradation of the image quality can be suppressed.

In the printer 11 according to the present embodiment, the platen 28 is the roll paper 12.
The controller 110 includes a plurality of through-holes A on the support surface PL that supports the air and an intake fan 80 that blows air from the plurality of through-holes A toward the roll paper 12.
2 is controlled so as to be in a non-contact state with the platen 2
The intake fan 80 is caused to execute air blowing toward the roll paper 12 that is separated from the paper 8. Therefore, it is possible to reliably maintain the state where the platen 28 and the roll paper 12 are not in contact with each other due to the effect of the air blowing.

=== Other Embodiments ===
The above embodiments are mainly described for the recording apparatus, but also include disclosure of the recording method and the like. The above-described embodiments are for facilitating understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof. In particular, the embodiments described below are also included in the present invention.

In the above embodiment, the recording apparatus is embodied in an ink jet printer.
A liquid ejecting apparatus that ejects or ejects liquid other than ink may be employed, and can be used for various liquid ejecting apparatuses including a liquid ejecting head that ejects a minute amount of liquid droplets.
In addition, a droplet means the state of the liquid discharged from the said liquid ejecting apparatus, and shall also include what pulls a tail in granular shape, tear shape, and thread shape. The liquid here may be any material that can be ejected by the liquid ejecting apparatus. For example, it may be in a state when the substance is in a liquid phase, a liquid state with high or low viscosity, sol, gel water, other inorganic solvents, organic solvents,
Particles of functional materials consisting of solid materials such as pigments and metal particles as well as liquids as a solution, liquid resin, liquid metal (metal melt), and liquid as one state of the substance are dissolved and dispersed in the solvent. Or a mixed one is included. Further, representative examples of the liquid include ink and liquid crystal as described in the above embodiment. Here, the ink includes general water-based inks and oil-based inks, and various liquid compositions such as gel inks and hot melt inks. As a specific example of the liquid ejecting apparatus, for example, a liquid containing a material such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL (electroluminescence) display, a surface emitting display, a color filter, or the like in a dispersed or dissolved state. It may be a liquid ejecting apparatus for ejecting, a liquid ejecting apparatus for ejecting a bio-organic material used for biochip manufacturing, a liquid ejecting apparatus for ejecting a liquid as a sample used as a precision pipette, a textile printing apparatus, a microdispenser, or the like. In addition, transparent resin liquids such as UV curable resin to form liquid injection devices that pinpoint lubricant oil onto precision machines such as watches and cameras, and micro hemispherical lenses (optical lenses) used in optical communication elements. A liquid ejecting apparatus that ejects a liquid onto the substrate or a liquid ejecting apparatus that ejects an etching solution such as an acid or an alkali to etch the substrate may be employed.
The present invention can be applied to any one of these injection devices.

In the printer 11 according to the above-described embodiment (referred to as the first embodiment), the platen 28 and the roll paper 12 are in a non-contact state when the controller 110 causes the cleaning unit 66 to clean the head unit 36. However, when the controller 110 can accept the job for recording the image and the job is not executed, the platen 28 and the roll paper 12 are not connected. An example of controlling the switching unit 70 so as to be in a contact state is also conceivable (referred to as a second embodiment). In the second embodiment, as in the first embodiment, the deterioration of the image quality of the image is suppressed.

That is, a state in which a job for recording an image can be received and the job is not executed may continue for a long time as in the cleaning operation. Therefore, in the printer 11 in which the switching unit 70 is not provided, the portion P1 of the roll paper 12 on the platen 28 is excessively dried and wrinkles are generated, so that the image quality of the image recorded by job execution is deteriorated. May occur.

On the other hand, the printer 11 according to the second embodiment has a switching unit 70, and the controller 110 can accept a job for recording the image and does not execute the job. 28 and the roll paper 12 are in the non-contact state,
The switching unit 70 is controlled. Therefore, the portion P1 of the roll paper 12 on the platen 28.
Excessive drying is appropriately avoided and the occurrence of inconveniences that cause wrinkles is suppressed. Therefore, it is possible to suppress the deterioration of the image quality of the image recorded by executing the job.

In the above embodiments (the first embodiment and the second embodiment), the switching unit 70 switches the contact state and the non-contact state by moving the platen 28. For example, the first conveying roller pair 2 is not limited to
The contact state and the non-contact state may be switched by moving (raising or lowering) the pair 5 and the second transport roller pair 33.

When the first transport roller pair 25 and the second transport roller pair 33 are moved (raised or lowered), there is a possibility of adversely affecting the paper feed accuracy (performance) of these rollers.
On the other hand, when the platen 28 is moved, such inconvenience does not occur, and the printer 1
The above embodiment is more desirable because the object of suppressing the deterioration of the image quality of the image can be achieved without impairing the performance of 1.

Moreover, in the said embodiment, although demonstrated taking the example of the intake fan 80 as an air blower, it is not limited to this, For example, a blower may be sufficient.

Further, a shutter may be provided at the exhaust port B or the intake port C. If the exhaust fan 29 (intake fan 80) is stationary as shown in the lower diagram (upper diagram) in FIG. 4 and the shutter is closed to close the exhaust port B (intake port C), the intake fan 80 The function of the (exhaust fan 29) can be exhibited more appropriately.

11 Printer, 12 Roll paper, 13 Feeding unit, 14 Main unit, 15 Winding unit, 16
Main body case, 17 support plate, 18 winding shaft, 19 feeding stand, 20 relay roller, 21
Transport unit, 22 printing chamber, 23 relay roller, 24 relay roller, 25 first transport roller pair, 25a first drive roller, 25b first driven roller, 26 first transport motor, 28 platen, 28a support base, 28b Board, 29 Exhaust fan, 31
Negative pressure chamber, 32 pressure detection sensor, 33 second conveyance roller pair, 33a second drive roller, 33b second driven roller, 34 second conveyance motor, 35 guide rail, 35
a Carriage unit, 36 head unit, 37 valve unit, 38 reverse roller, 39 relay roller, 40 delivery roller, 41 take-up frame, 42
Relay roller, 43 winding drive shaft, 50 first blower unit, 60 external device, 6
DESCRIPTION OF SYMBOLS 1 Heater unit, 62 Temperature detection sensor, 63 2nd ventilation unit, 66 Cleaning unit, 70 Switching unit, 70a Ball screw, 80 Intake fan,
110 controller, 111 interface unit, 112 CPU, 113 memory, 114 unit control circuit, 150 detector group, A through hole, B exhaust port, C air intake port, PL support surface, R printing area

Claims (6)

A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A cleaning unit for cleaning the recording unit;
A switching unit for switching between the contact state and the non-contact state;
A controller that controls the switching unit so that the support unit and the recording medium are in the non-contact state when the cleaning unit cleans the recording unit;
A recording apparatus comprising: A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A switching unit for switching between the contact state and the non-contact state;
A controller that can accept the job for recording the image and controls the switching unit so that the support unit and the recording medium are in the non-contact state when the job is not executed. When,
A recording apparatus comprising: The recording apparatus according to claim 1 or 2,
The switching device switches the contact state and the non-contact state by moving the support portion. The recording apparatus according to any one of claims 1 to 3,
The support portion has a plurality of holes in a support surface that supports the recording medium,
A blower for blowing air from the plurality of holes toward the recording medium;
The controller is
The switching unit is controlled so that the support unit and the recording medium are in the non-contact state, and the blower is caused to execute air blowing toward the recording medium that is separated from the support unit. A recording device. A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
A cleaning unit for cleaning the recording unit;
Preparing a recording device having a switching unit that switches between the contact state and the non-contact state;
Controlling the switching unit so that the support unit and the recording medium are in the non-contact state when the cleaning unit cleans the recording unit;
A control method for a recording apparatus, comprising: A support unit for supporting and heating the recording medium in a contact state in contact with the recording medium;
A recording unit that records an image on a heated recording medium supported by the support unit;
Preparing a recording device having a switching unit that switches between the contact state and the non-contact state;
Controlling the switching unit such that a job for recording the image can be received and the support unit and the recording medium are in the non-contact state when the job is not executed. When,
A control method for a recording apparatus, comprising:

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