JP2019119533A - Image formation apparatus - Google Patents

Abstract

To provide an image formation apparatus which can reduce the man-hour for managing the placement state of the image formation apparatus when placing the image formation apparatus body on a plurality of feeding parts.SOLUTION: An image formation apparatus 100 includes an image formation apparatus body 30, a first feeding part 10 and a second feeding part 20. The image formation apparatus body 30 includes an image formation part 31 for forming an image on a sheet S. The first feeding part 10 feeds a sheet S toward the image formation apparatus body 30. The second feeding part 20 feeds the sheet S toward the image formation apparatus body 30. The first feeding part 10 is placed on the second feeding part 20. The first feeding part 10 includes a connection part 1 that can be connected to the second feeding part 20. The connection part 1 moves in accordance with the placement of the image formation apparatus body 30 on the first feeding part 10 and is connected to the second feeding part 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an image forming apparatus.

  There is known an image forming apparatus provided with a lock mechanism of a sheet feeding device and an image forming apparatus main body detachably mounted above the sheet feeding device. As such an image forming apparatus, the image forming apparatus described in Patent Document 1 includes a sheet feeding device having a lock member and an image forming apparatus main body having a locked member. In the image forming apparatus described in Patent Document 1, the locking member engages with the locked member in conjunction with the operation of mounting the sheet feeding cassette on the sheet feeding device.

JP-A-9-110194

  However, in the image forming apparatus described in Patent Document 1, the image forming apparatus main body is placed on the sheet feeding device in order to bring the image forming apparatus main body and one sheet feeding device into an engaged state (locked state). In addition to the operation, the mounting operation of the sheet cassette is required. For this reason, in the image forming apparatus described in Patent Document 1, the attachment / detachment operation of the sheet feeding cassette is only indispensable when managing the placement state of placing the image forming apparatus main body on a plurality of sheet feeding devices. Also, the plurality of sheet feeding devices can not be engaged with each other. Therefore, when the image forming apparatus main body is placed on a plurality of sheet feeding apparatuses, it is difficult to reduce the number of man-hours for managing the placement state of the image forming apparatus.

  The present invention has been made in view of the above problems, and in the case of mounting the image forming apparatus main body on a plurality of feeding units, image formation capable of reducing the number of man-hours for managing the mounting state of the image forming apparatus. It aims at providing an apparatus.

  An image forming apparatus according to the present invention includes an image forming apparatus main body, a first feeding unit, and a second feeding unit. The image forming apparatus main body has an image forming unit that forms an image on a sheet. The first feeding unit feeds a sheet toward the image forming apparatus main body. The second feeding unit feeds a sheet toward the image forming apparatus main body. The first feeding unit is placed on the second feeding unit. The first feeding unit includes a connection portion connectable to the second feeding unit. The connecting portion moves in response to the image forming apparatus main body being placed on the first feeding portion, and connects with the second feeding portion.

  According to the image forming apparatus of the present invention, when the image forming apparatus main body is placed on the plurality of feeding units, it is possible to reduce the number of man-hours for managing the placement state of the image forming apparatus.

FIG. 1 is a perspective view showing an image forming apparatus according to an embodiment of the present invention. FIG. 6A is a perspective view showing a first moving unit of the image forming apparatus according to an embodiment of the present invention, and FIG. 6B is a perspective view showing a second moving unit of the image forming apparatus according to the embodiment of the present invention FIG. FIG. 6A is a perspective view showing a second feeding portion of the image forming apparatus according to the embodiment of the present invention, and FIG. 6B is a perspective view showing a part of the second feeding portion in an enlarged manner . FIG. 1 is a perspective view showing a part of an image forming apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view showing a part of an image forming apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing a first feeding portion of the image forming apparatus according to the embodiment of the present invention. FIG. 1 is a perspective view showing a part of an image forming apparatus according to an embodiment of the present invention. FIG. 1 is a diagram showing an image forming apparatus according to an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference characters and description thereof will not be repeated.

  The basic configuration of an image forming apparatus 100 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing an image forming apparatus 100. FIG. The image forming apparatus 100 is, for example, a printer, a copier, or a multifunction peripheral. Hereinafter, as an example, a case where the image forming apparatus 100 is a printer will be described. In the present embodiment, the X axis and the Y axis are parallel to the horizontal plane, and the Z axis is parallel to the vertical axis. The X axis, the Y axis, and the Z axis are orthogonal to one another.

  The image forming apparatus 100 includes an image forming apparatus main body 30, a feeding unit 10, and a feeding unit 20. The image forming apparatus main body 30 has an image forming unit 31. The image forming unit 31 forms an image on a sheet. The details of the configuration of the image forming unit 31 will be described later with reference to FIG.

  Each of the feeding unit 10 and the feeding unit 20 feeds a sheet toward the image forming apparatus main body 30. The feeding unit 10 is placed on the feeding unit 20. Preferably, the feeding unit 10 and the feeding unit 20 have the same configuration. Hereinafter, an embodiment in which the feeding unit 10 and the feeding unit 20 have the same configuration will be described. Among the two feeding units, the other feeding unit placed on one feeding unit is described as "first feeding unit 10", and one feeding unit is referred to as "second feeding unit". Write “20”. In addition, in order to avoid that description of embodiment becomes complicated, description and illustration of a figure may be abbreviate | omitted about the same structure.

  The first feeding unit 10 includes the connecting unit 1. The connecting portion 1 can be connected to the second feeding portion 20. Hereinafter, a state in which the connecting portion 1 is connected to the second feeding portion 20 may be referred to as a “connected state”. Moreover, the state in which the connection part 1 is not connected with the 2nd feeding part 20 may be described as a "connection release state." The connecting unit 1 moves in response to the image forming apparatus main body 30 being placed on the first feeding unit 10, and connects with the second feeding unit 20. Thus, the first feeding unit 10 is connected to the second feeding unit 20. Therefore, when the user places the image forming apparatus main body 30 on the first feeding unit 10, separation of the first feeding unit 10 and the second feeding unit 20 can be suppressed. As a result, when the image forming apparatus main body 30 is placed on a plurality of feeding units, the number of man-hours for managing the placement state of the image forming apparatus 100 can be reduced.

  According to the present embodiment, the image forming apparatus main body 30 may further include the third feeding portion 32. Similar to the first feeding unit 10 and the second feeding unit 20, the third feeding unit 32 feeds a sheet toward the image forming unit 31. In such an embodiment, the first feeding unit 10 and the second feeding unit 20 can function as an extended feeding unit that extends the sheet accommodation function of the image forming apparatus main body 30. Therefore, when the image forming apparatus main body 30 is placed on a plurality of feeding units, the sheet accommodation function can be expanded while reducing the number of steps for managing the placement state of the image forming apparatus 100.

  Continuing on, with reference to FIG. 1 and further referring to FIGS. 2 and 3, details of the connecting mechanism for connecting the first feeding portion 10 and the second feeding portion 20 will be described. As shown in FIG. 1, the first feeding unit 10 further includes a first cassette 11 and a first feeding case 12. The first cassette 11 accommodates a sheet. The first cassette 11 corresponds to a "cassette".

  The first feeding case 12 can accommodate the first cassette 11. The first feeding case 12 corresponds to a "feeding case". In detail, the first feeding case 12 includes a first bottom 12A, a first side wall 12B, and a first top wall 12C. The first bottom portion 12A covers at least a part of the lower surface of the first cassette 11 from the lower side of the first cassette 11. The first bottom 12A corresponds to the "bottom". The first side wall portion 12B is erected from the first bottom portion 12A, and constitutes three side walls of the first feeding case 12 excluding the takeout side of the first cassette 11. The first side wall 12 B covers the side of the first cassette 11. The first top wall portion 12C is disposed to be connected to the upper end of the first side wall portion 12B. The first top wall portion 12 </ b> C covers the sheet storage space and constitutes the top wall of the first feeding case 12. The image forming apparatus main body 30 is placed on the first top wall portion 12C.

  The connection portion 1 is disposed, for example, on the first side wall portion 12B. In detail, the connection part 1 is arrange | positioned inside the outer surface of 1st side wall part 12B, for example.

  As shown in FIGS. 2A and 2B, the connecting unit 1 includes a first moving unit 2 and a second moving unit 5. FIG. 2A is a perspective view showing the first moving unit 2. The first moving unit 2 is a columnar member. Specifically, the first moving unit 2 includes the shaft 3 and the first protrusion 4. The shaft 3 is, for example, a cylindrical member. The shaft 3 extends along the vertical direction D1. The first protrusion 4 is fixed between the upper end 3A and the lower end 3B of the shaft 3. The first protrusion 4 is, for example, a prismatic member or a cylindrical member. For example, the first protrusion 4 may be fixed to the shaft 3 by a fixing member, or a part of the shaft 3 may protrude. The first protrusion 4 protrudes from the shaft 3 along a direction D2 intersecting the shaft 3 (hereinafter, may be described as a “first cross direction D2”).

  FIG. 2 (b) is a perspective view showing the second moving unit 5. The second moving unit 5 is an annular member. In detail, the second moving unit 5 includes a second protrusion 6, a base 7, a hole 8, and a locking portion 9. The second protrusion 6 protrudes from the base 7 along a direction intersecting with the protrusion direction of the first protrusion 4. Hereinafter, the “direction intersecting with the projecting direction of the first projecting portion 4” may be described as “second intersecting direction D3”, and the projecting direction of the second projecting portion 6 may be described as “projecting direction D4”. In the present embodiment, the protruding direction D4 is a direction along the second intersecting direction D3. The second protrusion 6 is, for example, flat.

  The base portion 7 includes a base surface 7A and an inclined surface 7B. The inclined surface 7B is inclined with respect to the base surface 7A. Specifically, the inclined surface 7B is inclined upward from the base surface 7A in the vertical direction D1 in the protruding direction D4.

  The hole 8 penetrates the base 7. The hole 8 is formed in the base 7 so as to extend in a long hole shape along the projecting direction D4 in a plan view. The shaft 3 passes through the hole 8 below the first protrusion 4. The locking portion 9 is formed on the base portion 7 and can lock the elastic member. The details of the elastic member will be described later with reference to FIGS. 4 and 5.

  FIG. 3A is a perspective view showing the second feeding unit 20. FIG. FIG. 3B is a perspective view showing a part of the second feeding unit 20 in an enlarged manner. As shown in FIG. 3A, the second feeding unit 20 includes a second cassette 22, a second feeding case 23, and an engaging portion 21. The second feeding housing 23 includes a second bottom 23A, a second side wall 23B, and a second top wall 23C. Each of the second cassette 22, the second bottom 23A, the second side wall 23B, and the second top wall 23C is the first cassette of the first feeding unit 10 described with reference to FIG. It corresponds to each of 11 and the 1st bottom 12A, the 1st side wall 12B, and the 1st top wall 12C, and has the same composition.

  The second feeding housing 23 preferably further includes at least one hooking portion 23D. The hooking portion 23D has, for example, a hook shape, and is disposed on the second top wall portion 23C. When the first feeding portion 10 is placed on the second top wall portion 23C, the hooking portion 23D is hooked on the first bottom portion 12A of the first feeding portion 10 described with reference to FIG. . Therefore, the separation between the first feeding unit 10 and the second feeding unit 20 can be further suppressed, and the lateral displacement between the first feeding unit 10 and the second feeding unit 20 can be suppressed. The hooking portion 23D can also be disposed on the first top wall portion 12C of the first feeding portion 10. Thus, separation and lateral displacement between the image forming apparatus main body 30 and the first feeding unit 10 can be suppressed.

  As shown in FIG. 3 (b), the engaging portion 21 protrudes from the second top wall portion 23 </ b> C and engages with the second moving portion 5. In detail, the engaging portion 21 and the connecting portion 1 described with reference to FIG. 1 constitute a connecting mechanism. The engaging portion 21 protrudes upward from the second top wall portion 23C along the vertical direction D1. The engaging portion 21 is, for example, flat or prismatic. The engaging portion 21 has an opening 21A. The opening 21A opens in the direction D5 opposite to the projecting direction D4. The opening 21A faces the tip of the second protrusion 6 described with reference to FIG. 2 (b). The shape of the opening 21A may correspond to the length and the shape of the second projecting portion 6, and may be, for example, a concave shape or a hole shape penetrating the engaging portion 21.

  Next, with reference to FIG. 2 and FIG. 3 and further referring to FIG. 4 and FIG. 5, the connecting operation by the connecting mechanism will be described. 4 and 5 are perspective views showing a part of the image forming apparatus 100. FIG. 4 and 5 show cross sections in order to facilitate understanding of the drawings. The connection operation indicates an operation of changing the disconnection state to the connection state. FIG. 4 shows a disconnected state. FIG. 5 shows the connection state.

  As shown in FIG. 4, the first moving unit 2 is movable along the vertical direction D1. Specifically, the upper end 3A of the first moving unit 2 along the vertical direction D1 protrudes upward from the first feeding case 12. For example, the upper end 3A protrudes from the insertion opening 12E of the top wall 12C. The insertion port 12 </ b> E is formed in the top wall portion 12 </ b> C corresponding to the shape of the shaft portion 3. The first protrusion 4 slidably abuts on the inclined surface 7B of the base 7. The slidable distance corresponds to the distance between the tip 6A of the second protrusion 6 and the opening 21A of the engaging portion 21.

  As shown in FIG. 5, in response to the image forming apparatus main body 30 being placed on the first feeding unit 10, the first moving unit 2 moves downward along the vertical direction D1. Hereinafter, the “downward direction along the vertical direction D1” may be simply described as “downward direction D6”. Specifically, when the image forming apparatus main body 30 is placed on the first feeding unit 10, the main body bottom 30 A of the image forming apparatus main body 30 abuts on the upper end 3 A of the first moving unit 2. When the body bottom 30A of the image forming apparatus body 30 abuts on the upper end 3A of the first moving unit 2, the first moving unit 2 is pushed downward in the downward direction D6. When the first moving portion 2 is pushed down, the first projecting portion 4 slides downward while in contact with the inclined surface 7B of the base portion 7. When the image forming apparatus main body 30 abuts on the top wall 12C, the first moving unit 2 stops moving downward. The second moving unit 5 moves in the protrusion direction D4 in conjunction with the first moving unit 2. When the second moving portion 5 moves in the protruding direction D4, the tip 6A of the second protruding portion 6 is inserted into the opening 21A.

  The first feeding unit 10 preferably further includes an elastic member 13. In detail, the elastic member 13 connects the first side wall portion 12B and the locking portion 9 of the second moving portion 5. The elastic member 13 is, for example, a tension spring, and biases the second moving portion 5 in the opposite direction D5 to the projecting direction D4. The connecting portion 1 moves in accordance with the separation of the image forming apparatus main body 30 from the top of the first feeding portion 10. That is, when the image forming apparatus main body 30 is separated from the first feeding unit 10, the second moving unit 5 moves in the opposite direction D5 to the projecting direction D4. As a result, the image forming apparatus 100 is changed from the connected state to the disconnected state described with reference to FIG.

  As described above with reference to FIGS. 1 to 5, according to the present embodiment, the connecting portion 1 is preferably disposed on the first side wall portion 12 </ b> B covering the side of the first cassette 11. Thus, the first feeding unit 10 and the second feeding unit 20 can be connected while suppressing the influence on the sheet feeding operation. In addition, the connection part 1 can also be arrange | positioned to several different side wall parts among 1st side wall parts 12B. Therefore, when the image forming apparatus main body 30 is placed on the plurality of feeding units, the placement state of the image forming apparatus 100 can be further stabilized.

  Furthermore, according to the present embodiment, the connecting unit 1 includes the first moving unit 2 and the second moving unit 5. The second feeding unit 20 includes an engaging unit 21. The upper end 3A of the first moving unit 2 protrudes from the first top wall 12C. The engaging portion 21 protrudes from the second top wall portion 23C. The first moving unit 2 moves along the vertical direction D1. The second moving unit 5 moves in conjunction with the first moving unit 2 along the direction D3 intersecting the vertical direction D1. A direction D3 intersecting the vertical direction D1 indicates a second intersecting direction D3. As a result, the second moving unit 5 engages with the engaging unit 21. Therefore, the first feeding unit 10 can be connected to the second feeding unit 20 according to the weight of the image forming apparatus main body 30. As a result, when the image forming apparatus main body 30 is placed on the plurality of feeding units, the placement state of the image forming apparatus 100 can be stabilized with a simple configuration.

  Further, according to the present embodiment, the first moving unit 2 includes the shaft 3 and the first protrusion 4. The second mover 5 includes a second protrusion 6, a base 7 and a hole 8. The engaging portion 21 has an opening 21A. In response to the image forming apparatus main body 30 being placed on the first feeding unit 10, the shaft portion 3 moves in the downward direction D6. As the shaft 3 moves, the first protrusion 4 slides on the inclined surface 7B. The second protrusion 6 is moved in the protrusion direction D4 according to the sliding by the first protrusion 4 and is inserted into the opening 21A. As described above, the first feeding unit 10 is connected to the second feeding unit 20 in response to the first protrusion 4 sliding on the inclined surface 7B. Therefore, separation of the first feeding unit 10 and the second feeding unit 20 along the vertical direction D1 can be restricted. As a result, the number of parts for connecting the first feeding unit 10 and the second feeding unit 20 can be reduced.

  Further, according to the present embodiment, it is preferable that the first feeding unit 10 further includes the elastic member 13. The connecting portion 1 moves in response to the image forming apparatus main body 30 separating from the top of the first feeding portion 10, and releases the connecting state with the second feeding portion 20. Therefore, when transporting the image forming apparatus 100 installed in the connected state to another place, the number of steps for releasing the connected state can be reduced. As a result, when the image forming apparatus main body 30 is placed on the plurality of feeding units, the number of man-hours for managing the placement state of the image forming apparatus 100 can be further reduced.

  Further, as shown in FIGS. 4 to 6, it is preferable that the first bottom portion 12A have a recess 14 in which the through holes 14A are formed. FIG. 6 is a perspective view showing the first feeding unit 10. The first bottom 12 </ b> A has a recess 14. The recess 14 is recessed upward along the vertical direction D1. The recess 14 is arranged corresponding to the arrangement of the engaging portion 21 as shown in FIGS. 4 and 5. The shape of the recess 14 corresponds to the shape of the engaging portion 21. A through hole 14A is formed on the side surface of the recess 14. The shape of the through hole 14A corresponds to the shape of the second protrusion 6 and is, for example, rectangular in cross section.

  When the first feeding unit 10 is placed on the second top wall portion 23C, the recess 14 covers the engaging portion 21. Therefore, lateral displacement between the first feeding unit 10 and the second feeding unit 20 can be further suppressed. Furthermore, the second moving portion 5 engages with the engaging portion 21 through the through hole 14A. That is, in a state where the image forming apparatus main body 30 is placed on the first feeding unit 10, the second moving unit 5 is inserted into the through hole 14A and engaged with the engaging unit 21. Therefore, separation of the first feeding unit 10 and the second feeding unit 20 along the vertical direction D1 can be further suppressed firmly. As a result, when the image forming apparatus main body 30 is placed on the plurality of feeding units, the placement state of the image forming apparatus 100 can be further stabilized.

  Next, with reference to FIG. 6 and FIG. 7, the structure in which the connecting mechanism of each of the plurality of feeding units is interlocked will be described. FIG. 7 is a perspective view showing a part of the image forming apparatus 100. As shown in FIG. FIG. 7 shows the connection state. In FIG. 7, in order to facilitate understanding of the drawing, the cross section is described, and the description of the image forming apparatus main body 30 is omitted. As already described with reference to FIG. 1, each of the plurality of feeding units preferably has a similar configuration. For example, the second feeding unit 20 can be placed on a fourth feeding unit (not shown). As shown in FIG. 7, the second feeding unit 20 may include the connecting unit 1 in the same manner as the first feeding unit 10 includes the connecting unit 1. Furthermore, in the same manner as the second feeding unit 20 includes the engaging unit 21, the first feeding unit 10 may include the engaging unit 21.

  An insertion hole 15 is formed in each of the first bottom 12A of the first feeding portion 10 and the second bottom 23A of the second feeding portion 20. The shaft portion 3 can insert the insertion hole 15. The lower end 3 B of the shaft 3 of the first feeding unit 10 is disposed to face the upper end 3 A of the shaft 3 of the second feeding unit 20. When the image forming apparatus main body 30 is placed on the first feeding unit 10, the lower end 3B of the shaft 3 of the first feeding unit 10 is the upper end 3A of the shaft 3 of the second feeding unit 20. Push down. Thus, the first feeding unit 10 and the second feeding unit 20 can be coupled, and the second feeding unit 20 and the fourth feeding unit can be coupled. Therefore, even in the embodiment in which three or more feeding units are stacked below the image forming apparatus main body 30, the number of man-hours for managing the placement state of the image forming apparatus 100 can be reduced. Furthermore, the image forming apparatus 100 can be freely installed without concern about the mounting order of the respective feeding units.

  Next, the configuration and operation of the image forming unit 31 will be described in detail with reference to FIG. FIG. 8 is a diagram showing the image forming apparatus 100. As shown in FIG. The image forming apparatus main body 30 further includes a conveyance unit 33 and a discharge unit 34 in addition to the image forming unit 31 and the third feeding unit 32 described with reference to FIG. 1. In the image forming apparatus 100, the third feeding unit 32 can be omitted.

  Each of the third feeding unit 32, the first feeding unit 10, and the second feeding unit 20 feeds the sheet S to the conveyance unit 33. The sheet S is, for example, a sheet made of paper or synthetic resin. The conveyance unit 33 includes a plurality of conveyance roller pairs, and conveys the sheet S to the image forming unit 31. The image forming unit 31 forms an image on the sheet S. Specifically, the image forming unit 31 forms an image on the sheet S by electrophotography, and heats and presses the image to fix the image on the sheet S. Specifically, the image forming unit 31 includes a photosensitive drum, a charging device, an exposure device, a developing device, a transfer device, a cleaning device, a charge removing device, and a fixing device. The conveyance unit 33 conveys the sheet S on which the image is fixed to the discharge unit 34. The discharge unit 34 discharges the sheet S to the outside of the image forming apparatus 100.

  The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 8). However, the present invention is not limited to the above embodiment, and can be implemented in various modes without departing from the scope of the invention. In addition, various inventions can be formed by appropriately combining the plurality of components disclosed in the above-described embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components in different embodiments may be combined as appropriate. In order to facilitate understanding, the drawings schematically show each component as a main component, and the thickness, length, number, spacing, etc. of each component illustrated are actually considered from the convenience of drawing creation. Is different. Further, the materials, shapes, and the like of the components shown in the above-described embodiment are merely examples, and are not particularly limited, and various modifications can be made without departing from the configuration of the present invention.

  (1) Although the image forming apparatus 100 described with reference to FIGS. 1 to 8 is an electrophotographic printer, the present invention is not limited to this. The image forming apparatus 100 need only have a configuration in which at least the image forming apparatus main body 30, the first feeding unit 10, and the second feeding unit 20 are stacked and mounted. The image forming apparatus 100 may be, for example, an inkjet recording type of multifunction machine. For example, in the case of an inkjet recording type of multifunction peripheral, the image forming apparatus 100 further includes a document reading unit that reads an image of a document. The image forming unit 31 includes a recording head.

  The present invention is applicable to the field of image forming apparatuses.

DESCRIPTION OF SYMBOLS 1 connecting unit 10 first feeding unit 100 image forming apparatus 20 second feeding unit 30 image forming apparatus main body 31 image forming unit S sheet

Claims (7)

An image forming apparatus main body having an image forming unit for forming an image on a sheet;
A first feeding unit that feeds a sheet toward the image forming apparatus main body;
A second feeding unit for feeding a sheet toward the image forming apparatus main body;
The first feeding unit is placed on the second feeding unit,
The first feeding unit includes a connection unit connectable to the second feeding unit.
The image forming apparatus is configured such that the connecting portion moves in response to the image forming apparatus main body being placed on the first feeding portion, and connects with the second feeding portion. The first feeding portion further includes a first top wall portion on which the image forming apparatus main body is mounted;
The connecting portion is
A first moving unit moving along the vertical direction;
A second moving unit moving in a direction intersecting the vertical direction in conjunction with the first moving unit;
An upper end along the vertical direction of the first moving portion protrudes from the first top wall portion,
The second feeding unit is
A second top wall portion on which the first feeding portion is placed;
The image forming apparatus according to claim 1, further comprising: an engaging portion that protrudes from the second top wall portion and engages with the second moving portion. The first feeding unit further includes a bottom,
The bottom portion has a recess that is recessed upward along the vertical direction,
A through hole is formed on the side surface of the recess,
The recess is disposed corresponding to the disposition of the engagement portion.
The image forming apparatus according to claim 2, wherein the second moving unit engages with the engagement unit through the through hole. The first moving portion is a columnar member including a shaft portion and a first projecting portion,
The shaft extends in the vertical direction,
The first protrusion protrudes from the shaft along a direction intersecting the shaft,
The second moving portion is an annular member including a second projecting portion, a base portion, and a hole portion,
The second protrusion protrudes from the base in a direction intersecting with the protrusion direction of the first protrusion,
The base includes an inclined surface which is inclined with respect to the base surface,
The hole penetrates the base and is formed in the base so as to extend like a long hole along a projecting direction of the second protrusion in a plan view.
The shaft passes through the hole below the first protrusion,
The first protrusion slidably contacts the inclined surface,
The image forming apparatus according to claim 2, wherein the engagement portion has an opening that opens in a direction opposite to a direction in which the second protrusion protrudes. The first feeding unit further includes an elastic member,
The elastic member biases the second moving portion in a direction opposite to a direction in which the second protrusion protrudes.
5. The image according to claim 4, wherein the connecting portion moves in response to the image forming apparatus main body separating from the first feeding portion, and releases the connecting state with the second feeding portion. Forming device. The first feeding unit is
A cassette for containing the sheet;
And a feeding case capable of receiving the cassette.
The feeding case has a side wall portion covering the side of the cassette,
The image forming apparatus according to claim 1, wherein the connecting portion is disposed on the side wall portion.   The image forming apparatus according to any one of claims 1 to 6, wherein the image forming apparatus main body further includes a third feeding unit that feeds the sheet toward the image forming unit.

Images