JP2004109509A - Image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost image forming apparatus which eliminates the work for fastening of tumble prevention or unfastening, is therefore a simple configuration, automatically prevents the apparatus body from tumbling and lifts the apparatus body when moved. <P>SOLUTION: The image forming apparatus includes a toner image forming means 1 which forms a toner image by transferring the toner image to a body to be transferred, the apparatus body 2 which holds or covers the toner image forming means 1, and a tumble prevention means 3 which is turned relative to the apparatus body 2 when tilted or moved horizontally, thereby prevents the apparatus body 2 from being tumbled. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image forming apparatus, and more particularly, to an image forming apparatus such as a desk-top copying machine, a facsimile machine, a printer, or a multifunction machine of these machines, which is mounted on a mounting table to form a toner image.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a copying machine or a printer of an image forming apparatus, the size of a transfer sheet supplying apparatus for supplying a transfer sheet of an object to be transferred to an image forming unit tends to increase in size due to an increase in the processing speed thereof. Is increasing.
Since such a large-sized desktop image forming apparatus is used while mounted on a large-capacity sheet feeding apparatus having wheels such as casters, its weight and external dimensions tend to increase in use. is there.
In order to prevent the occurrence of adverse effects such as damage due to movement or overturning due to an external force from the time of an earthquake or from a lateral direction, or falling down, etc., an anti-seismic cushioning member of the image forming apparatus, Alternatively, an image forming apparatus provided with an anti-seismic member of a wheel or the like for preventing movement of a wheel such as a caster is known (see Japanese Patent Application Laid-Open No. H10-254207).
Most of the desktop image forming apparatuses have an optional paper feed bank or an additional table set as an optional configuration.
Normally, when a table-type image forming apparatus is installed on an additional paper supply bank, a fastening means is provided between the table-type image forming apparatus and the paper supply bank so that the table-type image forming apparatus does not fall over against external force from the lateral direction. Is provided.
For example, both the desktop image forming apparatus and the additional paper feed bank or the additional table have two or more pins on the additional paper feed bank or the additional table side, and the opposite table type image forming apparatus side There is a hole in the hole, and the pin fits and is guided and mounted.
After that, according to a manual such as an installation procedure manual, the two are fastened so as to be fixed. However, particularly in the case of installation by a user, there is a high possibility that this procedure will be forgotten.
[0003]
As shown in FIGS. 8 and 9, when an external force (F) is applied to the desktop image forming apparatus 100 in a lateral direction in such a state, if both are not fixed in a non-fastened state, The table type image forming apparatus 100 is separated from the additional type paper supply bank 101 and becomes independent, and even with a light load, the inclination angle (θF> θS) increases as shown in the figure, and the table easily becomes overturned (see FIG. 9). .
On the other hand, if both are fixed in the fastened state, as shown in the figure, the inclination angle (θF> θS) with respect to the load is also suppressed, and the vehicle hardly falls over (see FIG. 8).
A general user often installs a printer or the like of such a desk-top image forming apparatus, and often forgets to implement the fastening means.
In this case, the desktop type image forming apparatus is separated from the additional paper supply bank or the additional table to be placed and tilted against an external force from the lateral direction, which is extremely disadvantageous for tipping over.
However, in such a state, the desktop-type image forming apparatus needs to be released from the overturn prevention fastening means in order to lift it when moving or the like.
For this purpose, the configuration of detecting the installation inclination, releasing the fastening means for suppressing the fall, and the like are complicated, and furthermore, the fastening means for always fixing the both is required, so that the cost is increased.
Therefore, in the conventional image forming apparatus, the fixing is fixed and fastened in the case where the image forming apparatus is installed on the mounting table in order to suppress the overturn, and the fastening means for overturning is lifted when the apparatus is moved or the like. However, there is a problem that the configuration is complicated and the cost is increased.
[Patent Document 1] JP-A-10-254207
[Problems to be solved by the invention]
In the conventional image forming apparatus, it is troublesome to fix and fasten when installing the image forming apparatus on the mounting table in order to prevent the apparatus from falling down, or to release the means for fastening to prevent the apparatus from being overturned when moving the apparatus. A variety of operations are required, and the configuration for that is complicated, resulting in a problem of high cost.
Therefore, an object of the present invention is to solve such a problem. In other words, an object of the present invention is to provide a low-cost image forming apparatus which can automatically prevent the vehicle from falling over and move up when moving or the like with a simple configuration without performing the work of fastening and releasing the vehicle's overturn prevention. And
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, there is provided a tabletop image forming apparatus for forming a toner image by mounting the image on a mounting table. A toner image forming unit, an apparatus main body that holds or covers the toner image forming unit, and an overturn suppressing unit that rotates with respect to the apparatus main body by tilting or horizontal movement of the apparatus main body to perform an overturn suppressing operation. The most important feature is that the image forming apparatus is composed of
A second aspect of the present invention is characterized in that, in the image forming apparatus according to the first aspect, the overturn suppressing means is an image forming apparatus in which a plurality of opposing units are arranged to face each other.
According to a third aspect of the present invention, in the image forming apparatus according to the first or second aspect, the overturn prevention means is rotatably held about a rotation axis as a fulcrum and performs an overturn prevention operation by its own weight. Is the main feature.
According to a fourth aspect of the present invention, in the image forming apparatus according to the first, second or third aspect, the overturn prevention means is a lock member having a hook-shaped portion rotatably held around a rotation axis as a fulcrum. The main feature is that the image forming apparatus is a certain image forming apparatus.
According to a fifth aspect of the present invention, in the image forming apparatus according to the first, second, third, or fourth aspect, the tipping-over suppressing means is provided so that the tipping-up prevention means can be turned vertically about the pivoting axis as a fulcrum so as not to turn freely. The main feature is that the image forming apparatus has a weight member for holding.
According to a sixth aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, or fifth aspect, the overturn prevention means is an image forming apparatus formed on a bottom substrate forming the apparatus main body. Main features.
According to a seventh aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, fifth, or sixth aspect, the overturn prevention means is rotatably provided by a holding portion formed by bending a part of the substrate. The main feature is that the image forming apparatus holds a lock member.
[0006]
According to an eighth aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, fifth, sixth, or seventh aspect, the overturn prevention means is rotated to rotate the apparatus from the hole-shaped portion formed in the substrate. The main feature is that the image forming apparatus can be stored in the main body.
According to a ninth aspect of the present invention, in the image forming apparatus according to the first, second, third, fourth, fifth, sixth, seventh, or eighth aspect, the apparatus main body faces the tipping-preventing means during the non-tipping operation. The main feature of the present invention is that the image forming apparatus is provided at a position where the apparatus main body can be taken out in a vertical direction, and includes an overturn prevention unit and a locking member that engages and locks during the overturn prevention operation.
A tenth aspect of the present invention is the image forming apparatus according to the ninth aspect, wherein the locking member is an image forming apparatus arranged on a mounting table on which the apparatus main body is mounted.
According to an eleventh aspect of the present invention, in the image forming apparatus according to the ninth or tenth aspect, the locking member comprises a support portion formed by bending a part of the mounting table and a lock pin supported by the support portion. The main feature is that the image forming apparatus is an image forming apparatus.
According to a twelfth aspect of the present invention, in the image forming apparatus according to the ninth, tenth, or eleventh aspect, the overturn prevention means is an image forming apparatus that forcibly engages and locks by approaching the locking member. Main features.
According to a thirteenth aspect of the present invention, there is provided the image forming apparatus according to the tenth, eleventh or twelfth aspect, wherein the mounting table is a transfer body supply bank for additionally providing a transfer body to the toner image forming means. The main feature is that it is a device.
According to a fourteenth aspect of the present invention, in the image forming apparatus according to the tenth, eleventh, or twelfth aspect, the main feature is that the mounting table is an additional mounting table.
[0007]
[Action]
In the image forming apparatus configured as described above, in claim 1, the apparatus main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, or the apparatus main body is inclined or moved in a horizontal direction. Then, the overturn prevention means is rotated with respect to the apparatus main body to perform the overturn prevention operation.
According to the second aspect of the present invention, a plurality of units are disposed to face each other by tilting or moving the apparatus main body holding or covering a toner image forming unit for forming a toner image by transferring a toner image to a transfer object. The means rotates with respect to the apparatus main body to perform a fall suppressing operation.
According to a third aspect of the present invention, the apparatus main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, and is rotatable about a rotation axis by tilting or moving the apparatus body in a horizontal direction. Is turned relative to the main body of the apparatus to perform a fall suppressing operation by its own weight.
According to a fourth aspect of the present invention, the apparatus main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, and is rotatable about a rotation axis by tilting or moving the apparatus body in a horizontal direction. The overturn prevention means, which is a lock member having a hook-shaped portion held at a predetermined angle, rotates with respect to the apparatus main body to perform an overturn prevention operation.
According to a fifth aspect, when the device main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, the tilting or horizontal movement of the device main body causes the overturn prevention unit to move relative to the device main body. The device has a weight member that rotates to perform the overturn prevention operation and that the overturn prevention means is vertically held around the rotation axis as a fulcrum without performing the overturn prevention operation.
According to a sixth aspect of the present invention, the apparatus is formed on the bottom substrate forming the apparatus main body by tilting or horizontally moving the apparatus main body holding or covering the toner image forming means for transferring the toner image to the transfer object to form the toner image. The turned-over suppressing means is rotated with respect to the apparatus main body to perform an overturn-suppressing operation.
According to a seventh aspect of the present invention, a part of the substrate is bent and formed by tilting or moving the apparatus body in a horizontal direction in order to hold or cover the toner image forming means for forming the toner image by transferring the toner image to the transfer object. The overturning restraining means rotatably holding the lock member at the section is rotated with respect to the apparatus main body to perform the overturning inhibiting operation.
The hole shape formed on the substrate by rotating or tilting the apparatus main body for holding or covering the toner image forming means for forming the toner image by transferring the toner image to the transfer target body to form the toner image. The overturning prevention means, which can be stored in the apparatus main body from the unit, is rotated with respect to the apparatus main body to perform the overturning inhibiting operation.
[0008]
According to the ninth aspect, when the device main body holds or covers the toner image forming unit that transfers the toner image to the transfer target body to form the toner image, or the device main body is inclined or moved in the horizontal direction, the overturn suppressing unit is moved relative to the device main body. The device main body is rotated to perform the overturn prevention operation, and the device main body is disposed at a position where the device main body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and meshes with the overturn prevention device during the overturn prevention operation. And a locking member for locking.
According to the tenth aspect, when the device main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, the tilting or horizontal movement of the device main body causes the overturn prevention unit to move relative to the device main body. The device main body is turned to perform the overturn prevention operation, and the device main body is disposed at a position where the device body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and engages with the overturn prevention device during the overturn prevention operation. And a locking member arranged on a mounting table on which the apparatus main body to be locked is mounted.
According to the eleventh aspect, when the device main body holds or covers the toner image forming unit that transfers the toner image to the transfer target body to form the toner image, or the device main body is tilted or moved in the horizontal direction, the overturn suppressing unit is moved relative to the device main body. The device main body is turned to perform the overturn prevention operation, and the device main body is disposed at a position where the device body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and engages with the overturn prevention device during the overturn prevention operation. And a locking member including a support portion formed by bending a part of the mounting table to be locked and a lock pin supported by the support portion.
[0009]
According to the twelfth aspect, when the device main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, the tilting or horizontal movement of the device main body causes the overturn prevention unit to move relative to the device main body. The device main body is turned to perform the overturn prevention operation, and the device main body is disposed at a position where the device body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and engages with the overturn prevention device during the overturn prevention operation. The fall prevention means is forcibly brought into contact with the locking member and locked and fastened.
According to the thirteenth aspect, when the device main body holds or covers a toner image forming unit that transfers a toner image to a transfer target body to form a toner image, the tilting or horizontal movement of the device main body causes the overturn suppressing unit to move relative to the device main body. The device main body is turned to perform the overturn prevention operation, and the device main body is disposed at a position where the device body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and engages with the overturn prevention device during the overturn prevention operation. And a locking member disposed on a mounting table, which is a transfer object supply bank for additionally supplying a transfer object to the toner image forming means.
According to claim 14, when the device main body holds or covers the toner image forming means for transferring the toner image to the transfer target body to form the toner image, or the device main body is inclined or moved in the horizontal direction, the overturn suppressing means is moved relative to the device main body. The device main body is rotated to perform the overturn prevention operation, and the device main body is disposed at a position where the device main body can be taken out in the vertical direction during the non-overturn prevention operation in opposition to the overturn prevention device and meshes with the overturn prevention device during the overturn prevention operation. And a locking member arranged on a mounting table, which is an additional mounting table on which the apparatus main body to be locked is mounted.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2, a desktop image forming apparatus 0 that forms a toner image by mounting on a mounting table is a toner that transfers a toner image to a transfer sheet of a transfer target (P) to form a toner image. The image forming unit 1, the device main body 2 that holds or covers the toner image forming unit 1, and the device main body 2 is rotated with respect to the device main body 2 when the device main body 2 tilts or moves in the horizontal direction. It is made up of the fall prevention means 3 that performs the fall prevention operation and does not perform the work of fastening and releasing the fall prevention, and it is possible to automatically perform the fall prevention and the lifting at the time of moving with a simple configuration and low cost. It is.
The above-mentioned overturn prevention means 3 is arranged left and right as shown in the figure, or not shown, but a plurality of them are arranged facing each other in the front and rear direction. Even when moving, the fall is reliably prevented.
The image forming apparatus 0 of the desktop type is as follows. A scanner 6a of the document image reading means 6 for reading a document image of the document (0) and an automatic document feeder (ADF) 6b are arranged adjacent to the apparatus main body 2 at an upper portion thereof.
On the other hand, a transfer member supply bank 5a (see FIG. 1) is provided at the lower portion of the transfer member supply bank 5a, which is additionally provided as a mounting table 5 on which the apparatus main body 2 is mounted and supplies a large amount of transfer sheets of the transfer member (P) to the toner image forming means 1. 1) or an additional mounting table 5b is arranged, and the fall prevention and the lifting during the movement and the like are automatically performed with a simple configuration without performing the work of fastening and releasing the fall prevention. And a toner image is formed at low cost.
The transfer path of the transfer sheet on the transfer object (P) on which the toner image is formed is as shown by the thick line in the drawing, and the first sheet feed tray 1a _{1 of the} sheet feeding section 1a in the main body 2 is used. The second paper feed tray 1a ₂ , the third paper feed tray 1a ₃ , or the fourth paper feed tray 5a ₁ , the fifth paper feed tray 5a ₂ , and the paper feed of each of the transfer object supply banks 5a of the mounting table 5 fed from the sixth tray 5a _3, after the toner image by the image data by the toner image forming unit 1 is formed, and is discharged through a predetermined path.
The toner image forming means 1 reads image data of a document image of the document (0) by the scanner 6a and the automatic document feeder (ADF) 6b of the document image reading means 6, and forms a toner image with the image data. The electrostatic latent image is formed on a uniformly charged drum-shaped photosensitive drum of the image carrier 1c by causing the laser diode of the writing section 1b to emit light by an electrophotographic method. An image is formed, the toner image is transferred to a transfer sheet of a transferee (P) in a transfer section 1e, and after being heated and pressurized in a fixing section 1f, the toner image is formed by a discharge roller 1g. The transfer paper of the body (P) is sent out to the discharge tray 1h and stored.
Further, by passing through the double-sided portion 1i, it is also possible to form an image on the back surface of the transfer sheet of the transferee (P).
[0011]
In FIG. 3, the apparatus main body 2 of the image forming apparatus 0 is opposed to the tipping-over prevention means 3 and can be taken out in the vertical direction in the direction of the arrow (A) shown in FIG. The transfer member supply bank 5a or the upper portion, which is provided with a support portion 4a and a lock pin 4b of a locking member 4 which is disposed at an appropriate position and engages and locks with the overturn prevention means 3 during the overturn prevention operation. It is designed to be placed on the table 5 on the table 5b.
The tipping-over prevention means 3 is rotatably held about a pivoting shaft 3a formed on a substrate 2a at the bottom of the solid upper device main body 2 so that the tipping-off prevention means 3 is capable of carrying out the tipping-off operation and movement by its own weight. The simple structure of the lock member 3c having the hook-shaped portion 3b for reliably lifting and the weight member 3d reduces the cost.
Furthermore, the locking member 3c of the fall inhibition means 3 are rotatably held by the holding portion 2a ₁ formed by bending a portion of the substrate 2a, the hole shape portion 2a ₂ formed on the substrate 2a Since the apparatus can be stored in the apparatus main body 2, the configuration is simple and compact, and the cost is low.
The support portion 4a of the locking member 4 supports the lock pin 4b by forming a part of the transfer base supply bank 5a or a part of the mounting table 5 on the mounting table 5b. Furthermore, the structure is simple and low cost.
[0012]
4 to 6, the lock member 3 c of the overturn prevention means 3 formed on the substrate 2 a at the bottom of the upper device main body 2 has the weight member 3 d at the lower end, and is provided in the horizontal direction during normal installation. In the horizontal state in which no external force (F) is applied, the transfer member supply bank 5a or the above-mentioned member arranged on the mounting table 5 on the mounting table 5b around the rotation axis 3a as a fulcrum. The equilibrium state is maintained at the vertical position in the direction of the arrow (A) shown, which is the position where the stop member 4 is separated from the lock pin 4b to release the overturn prevention operation (see FIG. 4).
When the apparatus main body 2 of the image forming apparatus 0 starts to be inclined by an external force (F) from the lateral direction, the lock of the overturn suppressing means 3 formed on the substrate 2 a at the bottom of the apparatus main body 2 is locked. The member 3c is rotated with respect to the apparatus main body 2 in the direction of the arrow (B) shown in the drawing, and the member 3c disposed on the transfer table supply bank 5a or the mounting table 5 on the mounting table 5b. Since the stopper member 4 is inclined toward the lock pin 4b, the two engage with each other to automatically perform the overturning suppressing operation, and the apparatus main body 2 of the image forming apparatus 0 and the transfer object supply bank 5a or the upper side. The table 5 on the table 5b is not separated from the table 5b, so that the margin for falling is increased (see FIG. 5).
On the other hand, when the image forming apparatus 0 is moved up and down in the vertical direction in the direction of the arrow (A) shown in the drawing, for example, when the image forming apparatus 0 is lifted during transportation, the overturning formed on the substrate 2 a at the bottom of the apparatus main body 2 is performed. Since the lock member 3c of the restraining means 3 does not rotate in the direction of the arrow (B) shown in the figure, the locking member disposed on the transfer table supply bank 5a or the mounting table 5 on the mounting table 5b. Separation can be automatically realized without interfering with the lock pin 4b of the member 4.
As shown in FIG. 6, the lock member 3c is formed by moving the position of the rotation shaft 3a, which is a fulcrum at the time of rotation, upward, so as to be longer than the height of the locking member 4. In addition, unnecessary interference with the locking member 4 during horizontal movement or the like can be prevented.
In FIG. 7, the lock member 3c of the overturn prevention means 3 formed on the substrate 2a at the bottom of the apparatus main body 2 is connected to the transfer object supply bank 5a or the mounting table 5 on the mounting table 5b. The locking member 4 disposed on the side of the lock pin 4b is forcibly moved in the direction of the arrow (C) as shown in the drawing to be locked and fastened. Thus, the above functions can be provided in parallel by the overturn prevention means 3 without providing a separate fastening means, thereby reducing the number of parts and suppressing the cost.
[0013]
【The invention's effect】
Since the present invention is configured as described above, according to the first aspect of the present invention, it is possible to automatically prevent and move the fall with a simple configuration without performing the work of fastening and releasing the fall suppression. Thus, it is possible to provide a low-cost image forming apparatus that can be lifted at the time of the operation.
According to the second aspect of the present invention, it is possible to automatically and surely prevent overturning and to perform lifting when moving, etc., with a simple configuration without performing the work of fastening and releasing the overturning prevention, and a low cost. An image forming apparatus can be provided.
According to the third aspect of the present invention, it is possible to automatically carry out the fall prevention and the lifting at the time of moving, etc., with a simple structure without performing the work of fastening and releasing the fall prevention, thereby reducing the cost. An image forming apparatus can be provided.
According to the fourth aspect of the present invention, it is possible to automatically and more reliably perform the prevention of overturning and the lifting at the time of moving, etc., with a simple configuration, without performing the work of fastening and releasing the overturn prevention. Can be provided.
According to the fifth aspect of the present invention, it is possible to automatically and more reliably perform the overturn prevention and the lifting at the time of movement, etc., with a simple configuration without performing the work of fastening and releasing the overturn prevention. A low-cost image forming apparatus can be provided.
According to the invention of claim 6, a low-cost image that can be automatically lifted during fall prevention and movement with a simpler configuration without performing the work of fastening and releasing the fall suppression. A forming apparatus can be provided.
According to the seventh aspect of the present invention, it is possible to automatically perform the fall prevention and the lifting at the time of moving, etc., with a simpler configuration without performing the work of fastening and releasing the fall prevention, thereby further reducing the cost. An image forming apparatus can be provided.
According to the eighth aspect of the present invention, it is possible to automatically carry out the overturn prevention and the lifting at the time of moving, etc., with a simple and compact configuration without performing the work of fastening and releasing the overturn prevention. An image forming apparatus can be provided.
[0014]
According to the ninth aspect of the present invention, it is possible to automatically and surely carry out the overturn prevention and the lifting at the time of moving or the like with a simple and firm configuration without performing the work of fastening and releasing the overturn prevention. A cost-effective image forming apparatus can be provided.
According to the tenth aspect of the present invention, without performing the work of fastening and releasing the overturn prevention with the mounting table, with a simpler and firmer structure, the overturning at the time of the overturn prevention and the movement can be automatically and surely secured. It has become possible to provide a low-cost image forming apparatus that is possible.
According to the eleventh aspect of the present invention, it is possible to automatically and surely prevent overturning and lift when moving, etc., with a simple and solid configuration without performing the work of fastening and releasing the overturn prevention with the mounting table. And an even lower cost image forming apparatus can be provided.
According to the twelfth aspect of the present invention, it is possible to automatically and surely prevent overturning and lift when moving, etc., with a simple and solid configuration without performing the work of fastening and releasing the overturn prevention. As a result, the number of components can be reduced, and a further low-cost image forming apparatus can be provided.
According to the thirteenth aspect of the present invention, it is possible to automatically and securely prevent overturning and moving with a simpler and more robust structure without performing the work of fastening and releasing the overturn prevention with the transfer object supply bank. It has become possible to provide a low-cost image forming apparatus that can lift the image.
According to the fourteenth aspect of the present invention, it is possible to automatically and surely suppress the overturning and to lift the robot when moving, etc., with a simpler and more rigid structure without performing the work of fastening and releasing the overturning prevention with the placing table. It has become possible to provide a low-cost image forming apparatus that can perform image forming.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram illustrating an image forming apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating an image forming apparatus according to another embodiment of the present invention.
FIG. 3 is a perspective view illustrating a main part of the image forming apparatus according to the exemplary embodiment of the present invention.
FIG. 4 is an enlarged explanatory diagram illustrating a state of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.
FIG. 5 is an enlarged explanatory diagram illustrating another state of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.
FIG. 6 is an enlarged explanatory diagram illustrating a main part of an image forming apparatus according to another embodiment of the present invention.
FIG. 7 is an enlarged explanatory diagram illustrating a state of another main part of the image forming apparatus according to the exemplary embodiment of the present invention.
FIG. 8 is an explanatory diagram illustrating a state of a conventional image forming apparatus.
FIG. 9 is an explanatory diagram illustrating another state of the conventional image forming apparatus.
[Explanation of symbols]
0 image forming apparatus 1 toner image forming means, 1a sheet feeding section, 1a ₁ sheet feeding first tray,
1a ₂ paper feed second tray,
1a _3rd feed third tray,
1b writing unit,
1c image carrier,
1d developing section,
1e transfer unit,
1f fixing unit,
1g paper discharge roller,
1h discharge tray 2 main body, 2a substrate, 2a ₁ holder,
2a ₂ hole-shaped portion 3 overturn prevention means, 3a rotating shaft,
3b hook-shaped part,
3c locking member,
3d weight member 4 locking member 4a support portion,
4b lock pin 5 mounting table, 5a transfer medium supply bank, 5a ₁ sheet feed fourth tray,
5a 5th tray with ₂ paper feeds,
5a ₃ paper feed 6th tray,
5b mounting table 6 original image reading means, 6a scanner,
6b Automatic Document Feeder (ADF)
REFERENCE SIGNS LIST 100 Desktop type image forming apparatus 101 Additional type paper feed bank

Claims (14)

In a table-top image forming apparatus that forms a toner image by mounting on a mounting table, a toner image forming unit that transfers a toner image to a transfer target to form a toner image, and holds or covers the toner image forming unit. An image forming apparatus comprising: an apparatus main body; and a tipping-over prevention unit that rotates with respect to the apparatus main body by tilting or moving the apparatus main body in a horizontal direction to perform a tipping-preventing operation. 2. The image forming apparatus according to claim 1, wherein a plurality of the overturn prevention means are arranged to face each other. 3. The image forming apparatus according to claim 1, wherein the overturn prevention unit is rotatably held about a rotation axis and performs an overturn prevention operation by its own weight. 4. 4. The image forming apparatus according to claim 1, wherein the overturn prevention means includes a lock member having a hook-shaped portion rotatably held around a rotation axis. apparatus. 5. The image forming apparatus according to claim 1, wherein the tipping-preventing means includes a weight member that vertically holds the tipping member around a pivot axis without performing a tipping-preventing operation. Characteristic image forming apparatus. 6. The image forming apparatus according to claim 1, wherein the overturn prevention means is formed on a bottom substrate forming an apparatus main body. 7. The image forming apparatus according to claim 1, wherein the overturn prevention unit rotatably holds the lock member by a holding unit formed by bending a part of the substrate. Image forming apparatus. 8. The image forming apparatus according to claim 1, wherein the overturn prevention means is rotatable and can be stored in the apparatus body from a hole-shaped portion formed in the substrate. An image forming apparatus, comprising: 9. The image forming apparatus according to claim 1, wherein the apparatus main body is taken out in a vertical direction during a non-overturning operation in opposition to the overturn prevention means. An image forming apparatus, comprising: an overturn prevention unit; and a locking member that engages and locks during the overturn prevention operation. The image forming apparatus according to claim 9, wherein the locking member is disposed on a mounting table on which the apparatus main body is mounted. The image forming apparatus according to claim 9, wherein the locking member includes a support portion formed by bending a part of the mounting table, and a lock pin supported by the support portion. apparatus. 12. The image forming apparatus according to claim 9, 10 or 11, wherein the overturn prevention means is forcibly brought into contact with the locking member and locked and fastened. 13. The image forming apparatus according to claim 10, wherein the mounting table is a transfer object supply bank that is additionally provided to supply the transfer object to the toner image forming unit. 13. The image forming apparatus according to claim 10, wherein the mounting table is an additional mounting table.

Images