JP2000302308A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device having simple and inexpensive structure for preventing soil by ink on the surface of a recorder. SOLUTION: A recorder 60 is floated by striking wind, upward from the lower part from both the sides of the recorder 60 from the floating air blasting port 102 of an air blasting means 88, to the lower surface of the recorder 60 in discharging action; to prevent the rubbing and fouling of the recorder 60 the tip of which is discharged already. Air is struck to the whole recording surface of the recorder 60 after discharging from a drying air blasting port 104, to promote drying ink, thereby causing no soil on the recording and back surfaces even the next recorder 60 is placed on the recording surface of the recorder 60 after discharging.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording and forming an image or the like on a sheet-shaped recording medium, and more particularly to a recording apparatus capable of discharging a recording medium after a recording process and stacking and holding the recording medium.

[0002]

2. Description of the Related Art In general, recording apparatuses such as ink jet printers, facsimile apparatuses, and copiers are used as recording apparatuses for recording on a recording medium using liquid ink.

Some of such recording apparatuses are configured to record on a recording medium with liquid ink and then discharge the recording medium to an output recording volume mounting portion attached to the main body of the recording apparatus. Then, in the output recording volume loading section of the recording apparatus, the recording materials sequentially discharged here are stacked and stocked.

In the recording apparatus as described above, when the operation of discharging the first recording medium from the main body of the recording apparatus to the output recording volume mounting section and immediately discharging the second recording medium is performed, the second recording medium is discharged. Is moved down while rubbing on the recording surface of the first recording medium, and is stacked on the first recording medium. At this time, if the ink on the recording surface of the first recording medium is not dry, the leading end of the second recording medium that slides on the first recording medium is pushed so as to sweep the liquid ink on the recording surface of the first recording medium. The image may be spread to spread the image, or the back surface of the second recording material on the recording surface of the first recording material may be stained with ink.

In order to prevent the above-described ink smearing of a recording medium, a means as shown in FIG. 7 disclosed in Japanese Patent Application Laid-Open No. 7-257800 has been proposed.

In the recording apparatus shown in FIG. 7, a recording liquid 14 as a recording medium fed from a paper feeding section to a conveying roller 12 in an apparatus main body 10 is applied to a recording medium 16 of an ink jet system to form a fine liquid of liquid ink. Recording is performed by causing droplets to fly and adhere. Then, the recording paper 14 recorded with the liquid ink is rotated by the paper discharging roller 18 while being sandwiched between the paper discharging roller 18 and the opposing roller 20 arranged on the downstream side of the conveying path of the conveying roller 12. The sheets are ejected one by one in the horizontal direction, and are sequentially stacked on a sheet ejection unit 22 provided outside the apparatus main body 10.

In this recording apparatus, in order to prevent ink stains on the recording medium, a pump 24 sends air to an air outlet 26 and blows air from the tip of the air outlet 26 toward the downstream side in the conveying direction of the recording paper 14 so that the conveying roller 12 The recording paper 14 being discharged by blowing the lower surface of the recording paper 14 fed horizontally from
Is taken to prevent the recording paper 14 stocked in the paper discharge unit 22 from being rubbed on the recording surface of the recording paper 14 with the liquid ink.

[0008] In addition, another means has been proposed in the past, as illustrated in FIG. 8 disclosed in Japanese Patent Application Laid-Open No. 1-145153 in order to prevent ink stains on a recording medium. FIG. 8 shows a cross section in a direction perpendicular to the recording paper conveyance direction in a paper discharge unit provided outside the recording apparatus main body.

In the means shown in FIG. 8, a pair of rail members 32 (wings) are mounted on both sides of the paper discharge section 28. Each of the pair of rail members 32 is mounted so as to be rotatable between a standing position orthogonal to the floor member 34 and a guide holding position inclined toward each other as shown in FIG.

When the recording paper 36 recorded by the apparatus main body is sent out to the paper discharge section 28 with the pair of rail members 32 opened to the guide holding position, the recording paper 36 is supported on both sides by the pair of rail members 32. Then, the recording paper 36 held on the floor member 34 and output earlier is held in a state of being lifted.

In this state, the apparatus waits for a predetermined time until the previously output ink on the recording paper 36 is dried, and after a lapse of the predetermined time, the pair of rail members 32 is rotated to the upright position. Then, the pair of rail members 32 is detached from the recording paper 36, so that the recording paper 36 that has lost support is replaced with the recording paper 36 that has been output earlier.
It falls on and is stocked.

In this way, the leading end of the succeeding recording paper 36 is spread out so as to sweep the liquid ink on the recording surface of the recording paper 36 that has been output earlier, thereby causing ink smearing that contaminates the image. Is prevented from being stained with ink on the back surface of the succeeding recording paper 36 on the recording surface of the recording paper 36 output to the printer.

[0013]

SUMMARY OF THE INVENTION The above-mentioned JP-A-7-2
According to the conventional means disclosed in Japanese Patent No. 57800, when the size of the recording paper 14 is increased and its own weight is increased, or when a large amount of ink is adhered to the recording paper 14 for high-density printing, the recording paper 14 When the self-weight of the recording paper 14 increases, only the wind is blown from the pump 24 to the vicinity of the discharge roller of the recording paper 14 through the air outlet 26, so that the leading end of the recording paper 14 during the discharging operation hangs down and is discharged first. There is a risk that the recording surface of the recording paper 14 will be soiled. Furthermore, in this conventional means, it is necessary to install a dedicated pump or the like for blowing air to lift the recording paper 14, which increases the number of parts, complicates the structure, and increases the product price.

Further, in this conventional means, the wind blown from the pump 24 to the recording paper 14 during the discharging operation through the blower port 26 prevents the leading end of the recording paper 14 during the discharging operation from hanging down. Since the air is blown, the purpose is not to directly and evenly dry the liquid ink on the recording surface of the recording paper 14 already discharged.

Therefore, when high-density printing is performed on the recording paper 14, since the ink on the recording surface of the discharged recording paper 14 is not uniformly and sufficiently dried, the subsequently discharged recording paper 14 is When the recording paper 14 falls onto the discharged recording paper 14, ink stains on the recording surface of the discharged recording paper 14 and the back surface of the recording paper 14 discharged later may occur, thereby contaminating the image of each recording paper 14. was there.

When high-density printing is performed on the recording paper 36 by another conventional means illustrated in FIG. 8 disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 1-145153, recording on the discharged recording paper 36 is performed. Since there is no means for blowing air to dry the ink on the surface evenly and sufficiently, the recording paper 3 discharged later
If the ink on the recording surface of the discharged recording paper 36 becomes wet when the recording paper 6 falls on the discharged recording paper 36, ink stains and the back surface stain of the recording paper 14 discharged later occur.
There is a possibility that the image on each recording paper 36 is stained.

The present invention has been made in view of the above-described circumstances, and has as its object to provide a new inexpensive recording apparatus which can prevent a recorded image or a back surface of a recording medium from being stained with ink and has a simple structure.

[0018]

According to a first aspect of the present invention, there is provided a recording apparatus for recording an image on a recording medium, a discharging unit for discharging a recorded recording medium, and a discharged recording medium. And a loading means for loading and holding
An application unit is provided for applying a force from below to above from both sides in the ejection direction of the recording body to the recording medium discharged to the stacking unit by the discharging unit.

With the above-described structure, a force is applied to the lower surface side of the recording medium during the discharging operation from below and upward from both sides in the discharge direction of the recording medium so that the discharged recording medium floats. In addition, it is possible to prevent the tip of the discharged recording medium from touching the discharged recording medium and causing stains.

According to a second aspect of the present invention, in the recording apparatus according to the first aspect, the applying means blows air from below to above the recording medium from both sides in the recording medium discharging direction. And

With the above construction, air is blown upward from below from both sides in the discharge direction of the recording medium toward the lower surface side of the recording medium during the discharging operation, and the entire lower surface of the recording medium during the discharging operation is blown. To prevent the leading end of the discharged recording medium from dropping and rubbing on the discharged recording medium.

According to a third aspect of the present invention, in the recording apparatus according to the first or second aspect, the air blown by the applying means makes the recording medium adhere to a platen arranged at a position facing the recording means. It is characterized by being the exhaust air of a vacuum fan that sucks the air.

With the above-described configuration, the air blown out from the application unit can be supplied from a vacuum fan used for other purposes to the recording apparatus. Therefore, a structure in which a blower such as a fan dedicated to the application unit is installed is provided. In comparison, the configuration of the entire apparatus can be simplified.

According to a fourth aspect of the present invention, in the recording apparatus of the first or second aspect, the air blown by the applying means is an exhaust air of a cooling fan for cooling the inside of the apparatus main body. It is characterized by.

With the above configuration, the air blown out from the applying means can be supplied from the cooling fan that cools the inside of the recording apparatus main body, so that the apparatus is compared with a structure in which a fan or the like dedicated to the applying means is installed. The overall configuration can be simplified.

According to a fifth aspect of the present invention, there is provided a recording apparatus, comprising: recording means for recording an image on a recording medium; discharging means for discharging a recorded recording medium; and loading means for stacking and holding the discharged recording medium. And a blowing means for blowing air from above and below from both sides in the discharge direction of the recording medium to the surface of the recording medium stacked and held by the stacking means.

With the above configuration, the air spreads over the entire recording surface of the recording material stacked and held on the stacking means, so that the drying of the ink can be promoted. Therefore, even if a recording medium on which recording has been performed next is placed on the recording surface of a recording medium that has been discharged and stocked, the recording surface of the discharged recording medium and the back surface of the recording medium that has been discharged next become dirty. Can be avoided.

According to a sixth aspect of the present invention, there is provided a recording apparatus, comprising: recording means for recording an image on a recording material; discharging means for discharging a recorded recording material; and loading means for loading and holding the discharged recording material. A printing unit having: a feeding unit that blows air upward from below from both sides in a discharging direction of the recording body to a printing body discharged by the discharging unit; and a printing unit that is stacked and held by the stacking unit. Blowing means for blowing air from above to below from both sides in the discharge direction of the recording medium on the surface, and automatically switching to supply the air to the applying means when the recording medium is discharged to the loading means by the discharging means, Switching means for automatically switching to supply air to the blowing means when the recording medium is discharged from the discharging means to the stacking means.

With the above arrangement, in the recording apparatus, when the recording medium recorded by the recording means is sent out to the stacking means by the discharging means, the recording means is exposed to the wind and floats on the recording medium to discharge the recording medium. The tip of the body hangs down and is conveyed so that it does not rub on the discharged recording medium, and then the recording medium moves from the discharging means to the stacking means, and then blows air to the recording surface of the recording body with the air blowing means to promote drying A series of operations of causing the switching means to be automatically executed by the switching means and continuously executed.

According to a seventh aspect of the present invention, in the recording apparatus according to any one of the first to fourth and sixth aspects, the feeding means extends along the discharge direction of the recording medium. The apparatus is characterized in that the air is blown from the air port and the interval between the air supply ports arranged opposite to both sides in the discharge direction of the recording medium can be adjusted to expand and contract in accordance with the width of the recording medium.

With the above construction, when the recording medium is discharged to the stacking means by the discharging means, the air supply port moved and adjusted near both sides in the discharge direction of the recording medium with respect to the lower surface of the recording medium. Blow the wind. Therefore, the recording medium is conveyed to the discharge completion position of the stacking means in a state of being lifted along both sides in the discharge direction with an average lift.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An ink jet printer according to an embodiment of the recording apparatus of the present invention is shown in FIGS. As shown in FIG. 1, a main part of the ink jet printer is schematically shown.
2. The printing section 54 and the discharge section 56 are arranged.

In the recording medium transport section 52, an upstream transport section 62 is disposed on the upstream side of the transport path of a sheet-like recording medium 60 such as recording paper, and a downstream transport section 64 is disposed downstream thereof. A platen 66 is disposed between the two.

The upstream transport section 62 is composed of an upstream transport roll 68 and an upstream pressing roll 70 which comes into contact with the upstream transport roll 68. The upstream transport section 62 receives the recording bodies 60 fed one by one from a recording body supply unit (not shown) arranged in the apparatus main body 50, and sandwiches the recording bodies 60 between the upstream transport roll 68 and the upstream holding roll 70. In the state, the upstream transport roll 68
Is rotated to send the recording body 60 to the downstream transport section 64 through the platen 66.

The downstream transport section 64 is composed of a downstream transport roll 72 and a downstream press roll 74 which comes into contact with the downstream transport roll 72. The downstream transport unit 64 discharges the recording body 60 by sandwiching the leading end of the recording body 60 sent from the upstream transport unit 62 between the downstream transport roll 72 and the downstream holding roll 74 and rotating the downstream transport roll 72. It is configured to discharge to the section 56.

The downstream transport section 64 starts the feeding operation with the leading end of the recording body 60 interposed therebetween, and starts from the upstream transport section 62 during the period from when the rear end of the recording body 60 leaves the upstream transport section 62. The recording medium 60 is stretched and tensioned and transported between the downstream transport section 64 and the downstream transport section 64 without loosening.

Further, from the upstream transport section 62 to the downstream transport section 64
The platen 66 disposed on the transport path up to
In order to make it possible to hold the recording body 60 in a plane when printing on the recording body 60 in Step 4, a vacuum fan 78 is arranged in a duct 80 surrounding the lower part of a flat plate 76 having a large number of small holes. I have.

The platen 66 is provided with a vacuum fan 7
8 is driven to make the inside of the duct 80 a negative pressure, and the air entering the duct 80 through the small holes of the flat plate 76 is exhausted to the outside. Accordingly, when the recording medium 60 closes the small holes when the recording medium 60 slides on the surface of the flat plate 76, the inside of the duct 80 is under a negative pressure. The sheet is conveyed to the downstream side while being held in a stretched state so as to stick on the plane of the platen 66.

The printing unit 5 disposed above the platen 66
Reference numeral 4 denotes an arrangement of a scan shaft 82 along a main scanning direction orthogonal to the conveying direction of the recording body 60 (from the back to the front orthogonal to the plane of FIG. 1), and is guided by the scan shaft 82 to reciprocate in the main scanning direction. An ink jet type ink head 84 to be moved is mounted.

The ink head 84 performs recording by causing fine droplets of liquid ink to fly and adhere to the smooth recording surface of the recording body 60 while reciprocating in the main scanning direction.

As shown in FIGS. 1 and 3, the discharge section 56
It has a discharge recording volume loading section 86 for stacking and storing the recorded recording bodies 60, and an air supply means 88 disposed thereon. The discharged recording volume loading section 86 is configured by extending a rectangular plywood from the downstream transport section 64 toward the downstream side in the transport direction of the recording body 60 and stacking a large number of recording bodies 60 so as to be stockable.

As shown in FIG. 2 and FIG.
Is constructed by assembling a first duct member 90 on the left side in the drawing and a second duct member 92 on the right side in the drawing so as to form a substantially inverted U-shape as a whole.

The first duct member 90 includes an air supply section 96 formed of a hollow, quadrangular prism-shaped member, and a sliding connection section 94 formed by bending one end of the duct section 90 at a right angle. The end of the sliding connection portion 94 is formed in an opening such that the hollow interior is opened.

The second duct member 92 has an air supply section 98 formed of a hollow, quadrangular prism-shaped member. Further, one end of the air supply part 98 is bent at a right angle, and the end is opened so that the hollow interior is opened. The inner shape of the hollow interior is formed so as to be slightly larger than the outer shape of the sliding connection part 94. The sliding connection portion 100 is provided.

Then, the sliding connection portion 94 of the first duct member 90 is inserted into the hollow interior of the sliding connection portion 100 of the second duct member 92 so as to be slidable while maintaining airtightness, and the whole is substantially reversed. U-shaped air supply means 88 is formed.

The air supply means 88 configured as described above
Sliding the sliding connection 94 with respect to the sliding connection 100
By moving the duct member 90 toward the second duct member 92, the distance between the air supply unit 96 and the air supply unit 98 can be adjusted in parallel in accordance with the size of the recording body 60. Note that the first duct member 90 and the second duct member 92 may of course be configured to be movable and adjustable.

As shown in FIGS. 1, 5 and 6, each of the first duct member 90 and the second duct member 92 of the air supply means 88 is internally partitioned by a partition 106 and lifted upward in the figure. Air passage 108 and a drying air passage 110 below in the figure.
And the space is constructed. In addition, each air supply section 96, 98
On the side surfaces opposed to each other, a levitation air supply port 102 is formed along each levitation air path 108, and a drying air supply port 104 is formed along each drying air path 110. .

As shown in FIG. 3 and FIG.
In No. 02, the side surface portion of each of the air supply portions 96 and 98 corresponding to the levitation air passage 108 is cut into an elongated substantially inverted U-shape, and a rectangular long plate-like portion is bent and raised at a predetermined angle, and the discharge recording medium is formed. An air guide 120 is provided for guiding the air toward the back side of the recording body 60 located in the air above the stacking unit 86. At the same time, an opening opened on the side surface portion where the air guide 120 is formed serves as an air outlet 122.

The drying air supply port 104 is also provided in the same manner as described above.
A side surface of each of the air supply sections 96 and 98 corresponding to the drying air passage 110 is cut into a long and narrow path U-shape, and a rectangular long plate-like piece is bent and raised at a predetermined angle. An air blowing guide 124 is provided to guide the air to be directly blown toward the recording surface of the recording medium 60 placed on the recording medium 60. At the same time, an opening that opens on the side surface where the air guide 124 is formed serves as an air outlet 126.

As shown in FIGS. 1 and 2, an exhaust pipe 128 connected to the exhaust port of the vacuum fan 78 is connected to the air supply means 88, and the exhaust air of the vacuum fan 78 is supplied through the exhaust pipe 128. It is configured to be supplied with air. When the exhaust of the vacuum fan 78 is used as described above, the number of parts can be reduced and the configuration can be simplified as compared with a configuration in which a blower is separately provided.

As shown in FIG. 1, FIG. 2, FIG. 5, and FIG. 6, the connection between the air supply means 88 and the exhaust pipe 128 blows air to either the floating ventilation path 108 or the drying ventilation path 110. Switching means 130 for performing such switching is mounted. The switching means 130 is constituted by mounting a switching valve 134 on a fixed member 132 disposed at a predetermined portion of the partition 106 and attaching an adjusting spring 136 for automatically controlling the operation of the switching valve 134. I have.

The switching valve 134 is connected to a ventilation path leading from the exhaust pipe 128 to the floating ventilation path 108 and the exhaust pipe 12.
A flat plate having a planar shape capable of opening and closing any of the air passages leading from 8 to the drying air passage 110 is formed by bending a flat plate into a substantially rectangular shape in side view.

An adjusting spring 136, which is a tension coil spring, is provided between the free end of the switching valve 134 and a predetermined portion of the inner wall of the exhaust pipe 128, and as shown in FIG. It is urged to close the air passage leading to the air passage 108.

As shown in FIG. 1, it is detected whether or not the recording medium 60 is located at a position immediately before the downstream conveyance section 64 downstream of the platen 66 in the recording medium conveyance section in the recording medium conveyance section 52 of the apparatus main body 50. The recording body detection sensor 112 for performing the operation is disposed. The recording body detection sensor 112 is
0 is connected to a control unit (not shown) provided in
It is configured to detect the presence of the recording body 60 at a position directly above the recording body detection sensor 112 on the recording body transport unit 52 and send a detection signal to the control unit.

The control section of the apparatus main body 50 sends a control signal to the vacuum fan 78 to control the amount of air exhausted by the vacuum fan 78 and sent to the exhaust pipe 128. In the present embodiment, the air volume is adjusted by controlling the voltage applied to the vacuum fan 78. Also,
The control unit increases the air flow by increasing the voltage applied to the vacuum fan 78 while the recording medium detection sensor 112 detects the recording medium 60.
When 0 is not detected, control is performed to lower the applied voltage to the vacuum fan 78 to reduce the air volume.

Further, the control unit is configured to perform predetermined control such as operation control of the printing unit 54 and operation control of the upstream transport roll 68 and the downstream transport roll 72.

Next, the operation and control operation of the recording apparatus according to the present embodiment configured as described above will be described.

When recording is performed on the recording medium 60 by the recording apparatus, a user operates an operation button (not shown) of the apparatus main body 50 to send a signal of a recording operation to a control section (not shown). Then, the control unit sends a control signal to a recording medium supply unit (not shown) to transfer the recording medium 60 to the recording medium transport unit 52.
, And feed them separately at regular intervals. The control section controls the rotation of the upstream transport roll 68 of the upstream transport section 62 of the recording body transport section 52 to send the recording body 60 onto the platen 66.

At this time, the control unit drives the vacuum fan 78, sucks the recording medium 60 onto the flat plate 76 and holds the recording medium 60 in a planar shape, and transfers the recording medium 60 to the downstream transport unit 6.
Send to 4. In this manner, the recording body transport section 52 is held by the downstream transport section 64 at the leading end side of the recording body 60, at the upstream end by the upstream transport section 62 at the rear end side, and is held in a plane by the platen 66 at the intermediate section. The sheet is sent to the discharge section 56 in a state where the sheet is discharged.

The control unit sends a control signal to the printing unit 54 to drive the ink head 84 and
The ink droplets are ejected while being slid in the main scanning direction around the axis 2 to form an image on the surface of the recording medium 60 sent onto the platen 66.

Next, the control and operation when the recording body 60 on which the image is formed as described above is discharged to the discharge unit 56 and stocked will be described.

The control unit controls the recording medium transport unit 52
Is detected, the control signal (applied voltage is increased by a certain amount) is sent to the vacuum fan 78, and the vacuum fan 78 is switched so as to blow a large air volume.

As a result, the drying air passage 11 of the air supply means 88 is supplied from the vacuum fan 78 through the exhaust pipe 128.
The amount of air sent to 0 increases. Then the exhaust pipe 12
When the large amount of air flowing through the airflow 8 hits the bent end portion of the switching valve 134, the switching valve 134 is adjusted by the adjusting spring 136.
6 by rotating in the direction of arrow A in FIG. 5 against the urging force of FIG.

In the state shown in FIG. 6, a large amount of wind sent from the exhaust pipe 128 is guided into the levitation air passage 108. As shown in FIGS. 1 and 2, a large amount of air is blown from the sliding connection portions 94 and 100 through the air blowing portions 96 and 98 through the elongated openings of the air blowing port 122 and guided by the air blowing guide 120. The recording medium 6 sent out to a position on the discharge recording volume mounting portion 86 at a predetermined height
Assigned to zero.

That is, air is blown out from the respective lower sides corresponding to both sides of the recording medium 60 in the transport direction, and air is blown to the entire lower surface of the recording medium 60 during the paper discharging operation to float up. Is prevented from dropping onto the surface of the discharged recording medium 60 that has been discharged.

The recording medium 60 discharged to the discharge section 56
Even when the length of the portion on the leading end side of the recording medium 60 is long, the wind blows widely along the traveling direction of the recording medium 60 from the air supply opening 102 for floating, which is long open along the traveling direction of the recording medium 60. The portion on the leading end side of the recording body 60 extending from the downstream transport section 64 is held in a state of floating in the air.

As described above, when the recording body 60 is sent to the discharge section 56 by the rotation of the downstream conveyance section 64,
When the rear end of the recording body 60 passes through the recording body detection sensor 112, a signal when the recording body 60 is no longer detected by the recording body detection sensor 112 is sent to the control unit. Then, the control unit sends a control signal (reducing the applied voltage to the voltage during normal operation) to the vacuum fan 78 and sends the control signal to the vacuum fan 7.
8 is operated by switching so as to blow a normal small air volume.

As a result, the amount of air sent from the vacuum fan 78 to the air supply means 88 through the exhaust pipe 128 is reduced to a normal amount. Then, the urging force of the adjustment spring 136 exceeds the wind pressure of the normal air flow flowing through the exhaust pipe 128, and the switching valve 134 is rotated in the direction opposite to the arrow A in FIG. 6 to perform the switching operation of returning to the state of FIG.

When the state is switched to the state shown in FIG.
8 is sent from the drying air passage 110
As shown in FIGS. 1 and 4, air is blown out from the elongated openings of the air outlet 126 through the air supply portions 96 and 98 from the sliding connection portions 94 and 100, respectively, and the wind is blown out. The air is guided by the air blowing guide 124 and is blown to the upper surface side of the discharged recording volume mounting portion 86.

At this point, when the air is switched from the drying air supply port 104 to the air supply port, no air is blown from the floating air supply port 102 to the recording medium 60 near the completion of the discharge operation to be sent to the discharge section 56. , Recording body 6 near completion of discharge operation
0 loses buoyancy. Therefore, immediately after this, the recording medium 60 discharged onto the discharged recording volume loading section 86 so as to be detached from the downstream transport section 64 is discharged by the discharged recording volume loading section 8 by its own weight.
Fall on 6.

Further, as described above, the drying air supply port 104 is applied to the recording surface of the discharged recording body 60 discharged and stacked and stocked on the discharged recording volume mounting portion 86.
From above, the wind is evenly applied to the entire recording surface. This promotes drying of the ink on the recording surface of the recording medium 60, and prevents the recording surface of the stacked discharged recording medium 60 and the back surface of the recording medium 60 discharged next from being stained.

This air supply state from the drying air supply port 104 continues until it is detected that the next recording body 60 is passing through the recording body detection sensor 112. Therefore, during normal standby of the apparatus main body 50, the discharged recording medium 6 that is supplied from the drying air supply port 104 and discharged to the discharge recording volume loading unit 86.
In this state, the drying of the ink on the recording surface of No. 0 is promoted.

As described above, in the recording apparatus of the present embodiment, the recording medium 60 during the recording process is
The air blowing output of the vacuum fan 78 is switched and controlled depending on whether or not the air flow is detected by the switching means.
At 30, the air is blown up to the air blowing path 108 side or the air blowing path 11 for drying.
Automatically switch to 0 side. This appropriately switches the operation of discharging the recorded recording medium 60 to the discharge unit 56 while floating in the air, and the operation of drying the recording surface of the recording medium 60 stocked on the discharged recording volume mounting unit 86. Can be operated continuously.

In the recording apparatus of this embodiment, the exhaust of the vacuum fan 78 installed for carrying out the so-called vacuum transport on the platen 66 of the recording medium transport section 52 is performed.
Although it is configured to use the air supply for floating the recording medium 60 being discharged by the air supply means 88 of the discharge unit 56 and the drying of the ink of the recording medium 60 stocked in the discharge unit 56, It may be configured to use the exhaust air of a cooling fan for cooling the inside of the apparatus main body 50 such as an electric circuit board (not shown) installed therein. Further, a dedicated blower for sending air to the air sending means 88 may be provided in the apparatus main body 50.

[0075]

According to the present invention, in a recording apparatus for recording on a recording medium, a force is applied to the lower surface side of the recording medium during a discharging operation from both sides in the discharge direction of the recording medium from below to above. As a result, the discharged recording medium is caused to float, so that it is possible to prevent the leading end of the discharged recording medium from touching the discharged recording medium and causing stains. Alternatively, the drying of the ink can be promoted by blowing the entire recording surface of the discharged recording medium. Therefore, even if a recording medium on which recording has been performed next is placed on the recording surface of a recording medium that has been discharged and stocked, the recording surface of the discharged recording medium and the back surface of the recording medium that has been discharged next become dirty. There is an effect that can be avoided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a main part of an apparatus illustrating a recording apparatus according to an embodiment of the invention.

FIG. 2 is a schematic configuration diagram of a main part of a recording apparatus according to an embodiment of the present invention, in which a part of a discharge unit is taken out and shown.

FIG. 3 is an overall schematic perspective view illustrating a state of the recording apparatus according to the embodiment of the present invention as viewed from a discharge unit.

FIG. 4 is a main part perspective view showing a part of an air supply unit of the recording apparatus according to the embodiment of the present invention, which is taken out and shown.

FIG. 5 is a schematic configuration diagram of a main part of a recording device according to an embodiment of the present invention, in which a switching unit of an air supply unit is switched to a drying air passage to take out a cross-sectional view;

FIG. 6 is a schematic configuration diagram of a main part of a recording apparatus according to an embodiment of the present invention, in which a switching unit of an air supply unit is switched to a levitation air passage to take out and show a cross section.

FIG. 7 is a schematic configuration diagram of a main part of an apparatus illustrating a paper discharging unit of a conventional recording apparatus.

FIG. 8 is a vertical cross-sectional view of a paper discharge unit illustrating another paper discharge unit of a conventional recording apparatus.

[Explanation of symbols]

 Reference Signs List 50 apparatus main body 52 recording body transport unit (discharge unit) 54 printing unit (recording unit) 56 discharge unit (stacking unit) 60 recording body 62 upstream transport unit 64 downstream transport unit 66 platen 78 vacuum fan (giving unit) (blowing unit) 86 discharge recording volume loading section (loading means) 88 air supply means (applying means) (air blowing means) 102 air supply port for levitation (application means) 104 air supply port for drying (air supply means) 108 air supply path for levitation (application means) 110 drying air path (air blowing means) 112 recording medium detection sensor 120 air blowing guide (application means) 122 air outlet (application means) 124 air blowing guide (air blowing means) 126 air outlet (air blowing means) 128 exhaust pipe (application) Means) (blowing means) 130 switching means 132 fixing member (switching means) 134 switching valve (switching means) 136 adjustment spring ( Switching means)

Claims (7)

[Claims] 1. A recording apparatus comprising: a recording unit that records an image on a recording body; a discharging unit that discharges the recorded recording body; and a stacking unit that stacks and holds the discharged recording body. A recording device provided with an application unit for applying a force from below to above along the both sides in the discharge direction of the recording body to the recording body discharged to the stacking unit by the unit. 2. The method according to claim 1, wherein the applying unit is configured to:
2. The recording apparatus according to claim 1, wherein air is blown upward from below from both sides in the discharge direction of the recording medium. 3. The air blown by the vacuum fan, wherein the air blown by the applying means is a vacuum fan that sucks the printing medium so as to bring the printing medium into close contact with a platen arranged at a position facing the printing means. The recording device according to claim 2. 4. The recording apparatus according to claim 1, wherein the air blown by the applying means is an exhaust air of a cooling fan that cools an inside of the apparatus main body. 5. A recording apparatus comprising: a recording unit that records an image on a recording body; a discharging unit that discharges the recorded recording body; and a loading unit that stacks and holds the discharged recording body. And a blower for blowing air from above and below both sides in the discharge direction of the recording body onto the surface of the recording body stacked and held by the means. 6. A recording apparatus comprising: recording means for recording an image on a recording medium; discharging means for discharging the recorded recording medium; and stacking means for stacking and holding the discharged recording medium. For the recording medium discharged by the means,
An application unit that blows air upward from below from both sides in the discharge direction of the recording medium; and a unit below the both sides in the discharge direction of the recording medium with respect to the surface of the recording medium stacked and held by the stacking unit. A blower that blows air toward the stacking unit, and automatically switches to supply air to the applying unit when the recording body is discharged to the stacking unit by the discharging unit, and the recording body is moved from the discharging unit to the stacking unit. A switching unit for automatically switching to supply air to the blowing unit when the air is discharged to the recording apparatus. 7. The air supply port, wherein the applying means blows air from an air supply port extending along the discharge direction of the recording medium, and the air supply port is disposed opposite to both sides in the discharge direction of the recording medium. The recording apparatus according to any one of claims 1 to 4, wherein the interval between the portions (2) and (3) is configured to be adjustable in accordance with the width of the recording medium.