JP2004009404A - Inkjet recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily remove a recording medium clogged below an inkjet head, in an inkjet recording apparatus in which inkdrops discharged from an outlet of the inkjet head are stuck on the recording medium to form an image on the recording medium. <P>SOLUTION: An apparatus housing 1 of the inkjet recording apparatus is provided with a housing main body 30 and an opening/closing body 31 openably and closeably supported to this housing main body 30. The inkjet head 3 is supported on the opening/closing body 31, and when the recording medium is clogged between the inkjet head 3 and a platen 16, the opening/closing body 31 is opened and the inkjet head 3 is largely separated from the platen 16 to remove the clogged recording medium. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an ink jet recording apparatus that forms an image on a recording medium by adhering ink droplets discharged from a discharge port of an ink jet head to the recording medium.
[0002]
[Prior art]
2. Description of the Related Art An ink jet recording apparatus configured as a copier, a printer, a facsimile, or a multifunction peripheral having at least two of these functions has been conventionally known. A device housing of a conventional ink jet recording apparatus has a lower housing in which an ink jet head is supported, and an upper housing which is supported so as to be openable upward with respect to the lower housing. When a recording medium is jammed in the road, the upper housing is opened upward so that the jammed recording medium can be removed. However, when the recording medium is clogged below the ink jet head, the recording medium is jammed because the ink jet head is in the way even if the upper housing is opened upward and the inside of the lower housing is viewed from above. , It is not easy to remove the recording medium. Also, if the recording medium jammed under the ink jet head is forcibly pulled out, the recording medium may be broken and small pieces of the recording medium may remain under the ink jet head.
[0003]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide an ink jet recording apparatus which can eliminate the above-mentioned conventional disadvantages and can easily remove a clogged recording medium.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an ink jet printing apparatus of the type described at the beginning, wherein an apparatus housing of the printing apparatus comprises a housing body, And an ink jet recording apparatus, wherein the opening and closing member supports the ink jet head.
[0005]
Further, in the inkjet recording apparatus according to the first aspect, the position of the inkjet head with respect to the opening / closing body is determined such that when the opening / closing body is opened, at least a part of the recording medium conveyance path is opened. (Claim 2).
[0006]
Furthermore, in the ink jet recording apparatus according to the first or second aspect, it is advantageous that the opening / closing body is disposed on a side portion in a width direction of the apparatus casing (claim 3).
[0007]
Further, in the ink jet recording apparatus according to any one of claims 1 to 3, it is advantageous that the opening / closing body is supported by the housing body so as to be rotatable about a lower portion thereof as a fulcrum (claim 4). ).
[0008]
Further, in the ink jet recording apparatus according to any one of claims 1 to 3, the opening / closing body is supported by the housing main body so as to be able to open and close in a substantially horizontal direction with a deep portion of the apparatus housing as a fulcrum. Advantageously (claim 5).
[0009]
Further, in the ink jet recording apparatus according to any one of claims 1 to 3, it is advantageous that the opening / closing body is supported by the housing main body so as to be separable from the housing main body (claim 6). .
[0010]
Further, in the ink jet recording apparatus according to any one of claims 1 to 6, an image reading device that reads a document image is disposed above the ink jet head, and a paper feed unit is disposed below the ink jet head. Feeding the recording medium set in the sheet feeding unit in a first direction substantially parallel to an image reading direction by the image reading device, and then reversing a conveying direction of the recording medium to Is transported in a second direction substantially opposite to the first direction, an image is formed on the recording medium by the inkjet head, and the recording medium is subsequently discharged to a paper discharge unit. It is advantageous that the space between the image reading device and the paper feed unit is the paper discharge unit.
[0011]
8. The ink jet recording apparatus according to claim 7, further comprising a guide for guiding the recording medium so that the recording medium sent from the paper feeding unit is reversed in a conveying direction, wherein the guide includes the opening and closing member. Advantageously (claim 8).
[0012]
Furthermore, in the ink jet recording apparatus according to any one of claims 1 to 8, the ink jet head comprises a shuttle type head movably supported in a direction perpendicular to a recording medium transport direction. When the ink tank is detachably mounted on the ink jet head, and the home position of the ink jet head is set to a position on the front side of the apparatus housing and it is detected that the ink tank is empty, the ink jet head Is configured to automatically move to the home position (claim 9).
[0013]
Further, in the ink jet recording apparatus according to any one of claims 1 to 9, the opening / closing body is disposed on a side of the apparatus housing width direction opposite to the paper discharge unit with respect to the ink jet head. It is advantageous that the body is provided with an insertion opening for feeding a recording medium to an image forming section where an image is formed by the inkjet head (claim 10).
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings, and the above-mentioned conventional disadvantages will be more specifically clarified with reference to the drawings.
[0015]
1 is a perspective view of the inkjet recording apparatus as viewed from obliquely forward, FIG. 2 is a schematic vertical sectional view of the inkjet recording apparatus shown in FIG. 1, and FIG. 3 is an oblique view of the inkjet recording apparatus in a direction different from that of FIG. It is the perspective view seen from the front. The thick line in FIG. 2 indicates that this is a cross section.
[0016]
Reference numeral 1 in FIGS. 1 to 3 denotes an apparatus casing of the ink jet recording apparatus. When an operator (not shown) operating the ink jet recording apparatus faces the apparatus casing 1 in a normal posture, The side facing the operator is the front side F of the apparatus housing 1, that is, the front side, and the opposite side is the back side R of the apparatus housing 1, that is, the rear side. The direction orthogonal to the front-rear direction, that is, the left-right direction of the operator facing the device housing 1 is the width direction W of the device housing 1. The ink jet recording apparatus of the present embodiment is configured as a multifunction peripheral having printer and facsimile functions, in addition to a copying machine.
[0017]
As shown in FIG. 2, an image reading device 2 for reading a document image, an ink jet head 3, and a paper feeding unit 4 are provided inside the device housing 1 as described later. The image reading device 2 is arranged above the ink jet head 3, and the paper feed unit 4 is arranged below the ink jet head 3. A contact glass 5 is fixed to the uppermost part of the device housing 1, and the image reading device 2 is arranged below the contact glass 5. The document D placed on the upper surface of the contact glass 5 is pressed by the pressure plate 6. Further, as shown in FIG. 1, an operation display unit 25 is provided at a portion on the front side F of the device housing 1.
[0018]
Although various types of devices can be used as the image reading device, the image reading device 2 shown as an example in the drawing includes a light source 7, a rod lens array 8, a 1: 1 color image sensor 9, And a case 10 for accommodating the elements, the whole of which is configured as an integrated unit. The image reading device 2 is supported by a guide rod 11 fixed to the device housing 1 so as to be movable in the width direction W of the device housing 1. At the time of image reading, the image reading device 2 moves from the home position shown in FIG. 2 in the direction of arrow A. At this time, light from the light source 7 illuminates the original D on the contact glass 5 and reflected light from the original Are condensed on the color image sensor 9 through the rod lens array 8, where the original image is read.
[0019]
On the other hand, the paper supply unit 4 of the present example has a paper supply cassette 12 containing a recording medium P made of a sheet-like recording paper or the like, and a paper supply roller 13 in contact with the uppermost recording medium is shown in FIG. By being driven to rotate counterclockwise, the uppermost recording medium is fed in the direction of arrow B. The direction B is a direction substantially parallel to the image reading direction A by the image reading device 2, and this direction is referred to as a first direction. The recording medium P set in the paper feed unit 4 is sent out in a first direction B substantially parallel to an image reading direction A by the image reading device 2. Next, while being guided by the curved guide surface 15 of the guide 14, the recording medium P is reversed in the transport direction, and is transported in the first direction by the transport roller 18 pressed against the paper feed roller 13 via the recording medium. The sheet is conveyed in a substantially opposite second direction C, and is sent between the inkjet head 3 and a plate-like platen 16.
[0020]
As shown in FIG. 4, the inkjet head 3 of the present embodiment is configured as a shuttle type head supported movably along a guide shaft 17 fixed to the apparatus housing 1. At the time of image formation, the recording medium P on the platen 16 temporarily stops. At this time, the ink jet head 3 is moved from its home position to the moving direction C of the recording medium P while being guided by the guide shaft 17 by a driving device (not shown). Move in the direction E orthogonal to. Then, in accordance with the image information read by the image reading device 2, ink droplets are ejected from a discharge port (not shown) of the ink jet head 3, and the ink droplets adhere to a recording medium, and the ink droplets are printed on the recording medium. To form a color image. Image formation of a predetermined number of lines is performed by one operation of the inkjet head 3, and when the operation is completed, the inkjet head 3 is returned to the home position again along the guide shaft 17. At the time of this return, the recording medium is conveyed by a predetermined amount and stops again, and the ink jet head 3 moves again from the home position in the direction of the arrow E to form an image of a predetermined number of lines. An ink tank indicated by reference numeral 21 in FIG. 4 is set to be exchangeable with the inkjet head 3.
[0021]
As described above, the inkjet recording apparatus is configured to form an image on the recording medium by attaching ink droplets ejected from the ejection port of the inkjet head 3 to the recording medium. As the ink jet head 3, a shuttle type head supported so as to be movable in a direction perpendicular to the recording medium conveyance direction is used for forming an image on the recording medium. An image is formed on the recording medium P by the ink-jet head 3, and subsequently, the recording medium P is discharged to a paper discharge unit 20 as indicated by an arrow G by a discharge roller 19 that is driven to rotate in a direction indicated by an arrow in FIG. 2. In FIG. 2, the recording medium discharged to the paper discharge unit 20 is indicated by reference numeral PA.
[0022]
The paper discharge unit 20 is formed by a space between the image reading device 2 and the paper supply unit 4, and the paper discharge unit space includes a partition wall 1 </ b> A that separates the space from the space in which the inkjet head 3 is provided. An apparatus housing wall 1B located below the image reading device 2, an apparatus housing wall 1C located above the paper feed unit 4, and an inner device housing wall 1D are defined. The device housing wall 1 </ b> C above the paper feeding unit forms a recording medium mounting surface on which the recording medium discharged to the paper discharging unit 20 is mounted. The front side of the paper discharge unit 20 and the side part (the left side part in FIG. 2) opposite to the side where the inkjet head 3 is located are open, and the operator puts his hand through these open parts to open the apparatus housing. The recording medium PA discharged on the wall 1C, that is, on the recording medium mounting surface can be easily taken out.
[0023]
By the way, the recording medium conveyed from the paper supply unit 4 to the paper discharge unit 20 may be jammed in the conveyance path. When such a jam occurs, the operation of the apparatus is stopped, and a display for removing the jammed recording medium is displayed on the operation display unit 25.
[0024]
FIG. 5 shows a state in which the recording medium is clogged between the inkjet head 3 and the platen 16, and in this figure, the clogged recording medium is denoted by a reference numeral PC. In the following description, a jammed recording medium will be simply referred to as jammed paper as necessary.
[0025]
Here, in the conventional ink jet recording apparatus, as shown in FIG. 2, the apparatus housing 1 is divided into a lower housing X1 in which the ink jet head 3 is supported and an upper housing X2. The upper casing X1 is rotated upward as shown by a chain line arrow M in FIG. 2 to open the upper part of the lower casing X2. It was configured so that the PC (FIG. 5) could be removed. However, according to this configuration, as described above, when the recording medium is clogged under the ink jet head 3, as can be seen from FIG. However, the jammed paper PC could not be clearly seen because the ink jet head 3 was in the way, and it was not easy to remove the jammed paper. In addition, if the jammed paper PC is forcibly pulled, the jammed paper may be broken, and small pieces may remain between the inkjet head 3 and the platen 16.
[0026]
Therefore, in the ink jet recording apparatus of the present embodiment, the apparatus casing 1 of the recording apparatus includes a casing main body 30 and an opening / closing body 31 supported to be openable and closable with respect to the casing main body 30. The inkjet head 3 is supported by the opening / closing body 31. 2 and 3 show a state in which the opening / closing body 31 occupies the closed position and the opening 33 formed in the housing main body 30 is closed. FIG. Is shown when the opening 33 is opened. As can be seen from FIG. 6, a pair of brackets 32 are fixed to the opening / closing body 31, the guide shaft 17 supporting the inkjet head 3 is fixed to these brackets 32, and the transport roller 18 is attached to both brackets 32. It is rotatably supported. Therefore, when the opening / closing body 31 is opened as shown in FIG. 6, the ink jet head 3 is largely separated from the platen 16, the conveyance roller 18 is also largely separated from the paper supply roller 13, and the recording medium conveyance from the paper supply roller 13 to the platen 16 is performed. The road is open to the outside. As described above, the position of the inkjet head 3 with respect to the opening / closing body 31 is determined so that at least a part of the recording medium conveyance path is opened when the opening / closing body 31 is opened.
[0027]
As described above, the recording medium transport path can be opened by bringing the opening / closing body 31 to the open position, so that the state of the jammed paper can be directly viewed through the opening 33 of the housing main body 30, and the housing main body 30 can be viewed from the opening 33. The jam paper can be easily removed by putting a hand inside. Even if the jammed paper breaks, the small pieces of the jammed paper can be clearly seen, so that the small pieces of the jammed paper can be reliably removed.
[0028]
The opening / closing body 31 is disposed on a side portion of the device housing 1 in the width direction W. For this reason, even if the operator is in a posture facing the front of the apparatus housing 1, the jammed paper can be easily removed, and the operability is improved.
[0029]
In the example shown in FIG. 6, the opening / closing body 31 is supported by the housing main body 30 so as to be rotatable in the direction of arrow I with its lower part as a fulcrum, but as shown in FIG. The device body 1 can also be supported by the housing body 30 so as to be able to open and close in a substantially horizontal direction as indicated by an arrow J with the portion on the back side R of the device housing 1 as a fulcrum. Other configurations of the ink jet recording apparatus shown in FIG. 7 are the same as those of the ink jet recording apparatuses shown in FIGS. 7, parts corresponding to those in FIG. 6 are denoted by the same reference numerals as in FIG. Further, as shown by an arrow K in FIG. 3, the opening / closing body 31 is pulled in a horizontal direction with respect to the housing body 30, and the opening / closing body 31 is separated from the housing body 30 so that the opening / closing body 31 can be separated from the housing body 30. It can also be supported by the body 30.
[0030]
When the opening / closing body 31 is supported as shown in FIG. 6, even if the opening angle θ of the opening / closing body 31 is smaller than 90 °, the jam paper can be removed. If the opening angle θ when the opening / closing body 31 is opened is made smaller than 90 °, the amount L1 of the opening / closing body 31 protruding from the housing body 30 can be reduced. When there is another object (not shown) and the gap between the object and the housing body 30 is narrow, the opening / closing body 31 can be opened to perform the jam processing.
[0031]
On the other hand, when the opening / closing body 31 is supported as shown in FIG. 7, the opening / closing body 31 is opened so that the opening angle θ of the opening / closing body 31 becomes 90 ° or nearly 90 °, and the jammed paper is removed. Since the removal operation is generally performed, the amount L2 of the opening / closing body 31 projecting from the housing body 30 is slightly larger than that in the case of FIG. Since the interior can be looked into in the horizontal direction and the hand can be put in the interior in the horizontal direction, the visibility and work efficiency can be improved. In the case of FIG. 6, it is necessary to look into the inside of the housing main body 30 from above through the opening 33 and to reach into the inside of the housing main body 30 from above, so that the visibility and work efficiency are slightly reduced. I do.
[0032]
When the opening / closing body 31 is configured to be separable from the housing body 30, the visibility inside the housing body 30 and the efficiency of removing jammed paper can be further improved, but the work of attaching and detaching the opening / closing body 31 is performed. Is somewhat complicated. As described above, any of the support modes of the opening / closing body 31 has advantages and disadvantages.
[0033]
By the way, in the ink jet recording apparatus of the present embodiment, as described above, the image reading device 2 that reads a document image is disposed above the ink jet head 3, and the paper feed unit 4 is disposed below the ink jet head 3. Then, the recording medium P set in the paper feed unit 4 is sent out in a first direction B substantially parallel to the image reading direction by the image reading device 2, and then the conveying direction of the recording medium P is reversed. Then, the recording medium P is transported in a second direction C substantially opposite to the first direction B, an image is formed on the recording medium P by the inkjet head 3, and the recording medium P is subsequently discharged to a paper discharge unit. 4, and the space between the image reading device 2 and the paper feeding unit 4 is configured as a paper discharging unit 4. As described above, since the space between the image reading device 2 and the paper supply unit 4 is the paper discharge unit 20, it is not necessary to provide a paper discharge tray that protrudes greatly to the side of the device housing 1, and the The overall size can be reduced. Further, a guide 14 for guiding the recording medium P is provided so that the conveying direction of the recording medium P sent from the sheet feeding unit 4 is reversed, and the guide 14 is also attached to the opening / closing body 31. Therefore, even when the recording medium is jammed in the recording medium transport path formed by the guide 14, the jammed paper can be easily removed by opening the opening / closing body 31. Particularly, in the illustrated example, the paper feed roller 13 is supported on the side of the housing main body 30. Therefore, when the opening / closing body 31 is opened as shown in FIGS. Is also opened, and jammed paper jammed here can be easily removed.
[0034]
By the way, as shown in FIG. 4, the ink contained in the ink tank 21 removably mounted on the ink jet head 3 is supplied to the discharge port of the ink jet head 3 and consumed. When it becomes empty, it must be replaced with a new ink tank filled with ink. That is, when a sensor (not shown) detects that the ink in the ink tank 21 is empty, a message to replace the ink tank is displayed on the operation display unit 25, and the operator places the ink tank 21 in accordance with the display. In this case, the ink tank 21 can be easily replaced by opening the opening / closing body 31 as shown in FIGS. 6 and 7. At this time, when the opening / closing body 31 is opened, if the ink jet head 3 is located on the near side of the apparatus housing 1 as shown in FIG. 6, the ink jet head is located immediately near the operator facing the front of the apparatus housing. Since 3 is located, the operator can easily reach for the ink tank 21 and replace it. In the case of the example shown in FIG. 7 as well, if the ink jet head 3 occupies a position distant from the housing body 30 when the opening / closing body 31 is opened, the operator does not obstruct the housing body 30 and 21 can be replaced.
[0035]
Therefore, in the ink jet recording apparatus of the present embodiment, the ink jet head 3 is composed of a shuttle type head supported so as to be movable in a direction orthogonal to the conveying direction of the recording medium P, and the ink jet head 3 has an ink tank 21. Is detachably mounted, and the home position of the inkjet head 3 is set to a position on the front side of the apparatus housing 1, that is, the position shown in FIG. 4, and it is detected that the ink tank is empty. When this is done, the inkjet head is automatically moved to the home position by a driving device (not shown). Thus, if the opening / closing body 31 is opened to replace the ink tank 21, the ink jet head 3 always occupies the position shown in FIGS. 6 and 7, and the operator can easily replace the ink tank 21. .
[0036]
By the way, as a recording medium, a special recording medium such as a cardboard, a release paper, an OHP sheet, a computer medium such as a CD or a DVD may be used in addition to a normal recording paper. If such a recording medium is referred to as a special recording medium, and the special recording medium is set in the sheet feeding cassette 12 of the sheet feeding unit 4 and is fed to the image forming unit by the inkjet head 3, the special recording medium When the recording medium changes direction from the first direction B to the second direction C, a large external force is applied to the special recording medium, causing a conveyance trouble of the special recording medium and possibly damaging the special recording medium. There is also a risk of doing so.
[0037]
Therefore, in the ink jet recording apparatus of the present embodiment, as shown in FIG. 2, the opening / closing body 31 is disposed on the side of the apparatus housing width direction opposite to the paper discharge unit 20 with respect to the ink jet head 3, and The opening / closing body 31 has an insertion port 22 for feeding a special recording medium to an image forming unit where an image is formed by the inkjet head 3. In FIG. 2, the recording medium sent from the insertion port 22 is indicated by a chain line, and is denoted by a symbol PB. Further, as can be seen from this figure, a sheet feed table 23 on which a recording medium PB sent to the image forming unit through the insertion port 22 is placed is supported by the opening / closing body 31. The recording medium PB is set on the sheet feeding table 23 as shown in FIG. 2, and the sheet feeding roller 13 and the conveying roller 18 are rotated to send the recording medium PB toward the image forming unit. An image is formed on the recording medium PB in exactly the same manner as described above, and the recorded recording medium PB can be discharged to the paper discharge unit 20. At this time, the recording medium PB is conveyed in a substantially horizontal direction from the paper feed table 23 to the paper discharge unit 20. Therefore, even if the recording medium PB is a special recording medium, this may cause a conveyance trouble or cause the special recording medium to fail. Can be prevented from being damaged.
[0038]
The paper feed table 23 may be fixed to the apparatus housing 1 immovably. However, the paper feed table 23 is opened as shown by a solid line in FIG. As described above, the sheet supply table 23 can be supported by the opening / closing body 31 so as to be rotatable between the closed position where the insertion port 22 is closed. For example, the lower portion of the sheet feeding table 23 is supported by a closing member 31 via a pin (not shown) so as to be rotatable and openable. With this configuration, by bringing the sheet feeding table 23 to the closed position indicated by the chain line when not in use, external dust and the like can be prevented from entering the apparatus housing through the insertion port 22, In addition, it is possible to prevent a problem that the sheet feeding table 23 becomes an obstacle.
[0039]
In the inkjet recording apparatus described above, only the paper feed table 23, the guide 14, the guide shaft 17, the transport roller 18, the inkjet head 3 equipped with the ink tank 21, and the pair of brackets 32 are provided on the opening / closing body 31 side. All other elements are provided on the side of the housing main body 30. However, if necessary, some of the elements provided on the housing main body 30 may be arranged on the opening / closing body 31.
[0040]
【The invention's effect】
According to the present invention, the jammed recording medium can be easily removed by opening the opening / closing body.
[Brief description of the drawings]
FIG. 1 is an external perspective view of an ink jet recording apparatus.
FIG. 2 is a schematic vertical cross-sectional view of the ink jet recording apparatus shown in FIG. 1, which is also used to explain a defect of a conventional ink jet recording apparatus.
FIG. 3 is an external perspective view of the inkjet recording apparatus as viewed from a side of an opening / closing body.
FIG. 4 is a schematic perspective view of an inkjet head.
FIG. 5 is a partial view showing a state where a recording medium is clogged between an inkjet head and a platen.
FIG. 6 is a perspective view showing a state when the opening / closing body is opened.
FIG. 7 is a perspective view showing a state when an opening / closing body supported in a mode different from that of FIG. 6 is opened.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Device housing | casing 2 Image reading device 3 Ink-jet head 4 Paper supply part 14 Guide 20 Paper discharge part 21 Ink tank 22 Insertion opening 30 Housing main body 31 Opening / closing body P Recording medium PB Recording medium R Back side W Width direction

Claims (10)

In an ink jet recording apparatus that forms an image on a recording medium by attaching ink droplets discharged from an ejection port of an ink jet head to the recording medium, an apparatus housing of the recording apparatus includes a housing main body and a housing main body. An ink-jet recording apparatus, comprising: an opening / closing member supported so as to be openable and closable, wherein the ink-jet head is supported by the opening / closing member. 2. The ink jet recording apparatus according to claim 1, wherein the position of the ink jet head with respect to the opening and closing body is determined so that at least a part of the recording medium conveyance path is opened when the opening and closing body is opened. 3. The ink jet recording apparatus according to claim 1, wherein the opening / closing body is disposed on a side portion in a width direction of the apparatus housing. 4. 4. The ink jet recording apparatus according to claim 1, wherein the opening / closing body is supported by the housing body so as to be rotatable about a lower portion thereof as a fulcrum. 5. 4. The ink jet recording apparatus according to claim 1, wherein the opening / closing body is supported by the housing body so as to be able to pivotally open and close in a substantially horizontal direction with a back portion of the apparatus housing as a fulcrum. 4. The ink jet recording apparatus according to claim 1, wherein the opening and closing body is supported by the housing main body so as to be separable from the housing main body. 5. An image reading device for reading a document image is disposed above the inkjet head, a paper feed unit is disposed below the inkjet head, and a recording medium set in the paper feed unit is read by the image reading device. To feed the recording medium in a first direction substantially parallel to the image reading direction, and then reverse the conveying direction of the recording medium to convey the recording medium in a second direction substantially opposite to the first direction. An image is formed on the recording medium by the inkjet head, and the recording medium is continuously discharged to a paper discharge unit, and a space between the image reading device and the paper supply unit is formed in the paper discharge unit. The ink jet recording apparatus according to any one of claims 1 to 6, wherein The ink jet recording apparatus according to claim 7, further comprising a guide for guiding the recording medium so that the conveying direction of the recording medium sent from the paper feeding unit is reversed, wherein the guide is attached to the opening / closing body. . The inkjet head comprises a shuttle type head movably supported in a direction orthogonal to the recording medium conveyance direction, and an ink tank is detachably mounted on the inkjet head, and the inkjet head is The ink jet head is configured to automatically move to the home position when the home position is set to a position on the front side of the apparatus housing and the empty ink tank is detected. 9. The ink jet recording apparatus according to any one of claims 1 to 8. The opening / closing body is disposed on the widthwise side of the device housing opposite to the paper discharge unit with respect to the inkjet head, and sends a recording medium to the opening / closing body to an image forming unit that forms an image with the inkjet head. The ink jet recording apparatus according to any one of claims 1 to 9, further comprising an insertion port for receiving the ink.

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