JP4962038B2 - Toner container and image forming apparatus suitable for the same - Google Patents

Description

  The present invention relates to a toner container suitable for an image forming apparatus such as an electronic copying machine, a printer, or a multifunction machine thereof, and an image forming apparatus suitable for mounting the toner container.

  An electrophotographic image forming apparatus projects an electrostatic latent image of an image by projecting a laser beam modulated by an image signal onto a charged image carrier, and develops the formed electrostatic latent image with toner. Thus, a toner image is formed on the image carrier. Next, the toner image is transferred onto a recording sheet, the toner image transferred onto the recording sheet is fixed, and discharged to a discharge tray.

  In such an image forming apparatus, a container containing toner is detachably attached to a developing device of the image forming apparatus, and the developing device is replenished with toner. In the image forming apparatus, the residual toner on the image carrier that has not been used for image formation at the end of the image forming operation is cleaned and prepared for the next image forming operation. It is collected in a container and discarded.

  Conventionally, a dedicated container has been used as a waste toner container, but in recent years, a technique has been proposed in which a toner container that has become empty after completion of toner replenishment is reused as a waste toner container.

The waste toner collected in the waste toner container contains toner with small particles that are not sufficiently charged, paper powder, dust, and the like, and therefore it is not preferable to reuse the toner. Therefore, when reusing a reused toner container containing waste toner so that it cannot be attached to the image forming apparatus again due to an erroneous operation, or when reusing a used empty toner container as a waste toner container, There has been proposed a toner container in which a part of the toner container is cut or the lid is replaced (see Patent Document 1 and Patent Document 2).
Japanese Patent Laid-Open No. 08-114967 Japanese Patent Laid-Open No. 11-223984

  However, in the above-described technology, there is a risk that the reused toner container in which the waste toner is stored may be attached to the image forming apparatus again due to an erroneous operation or the like. When reusing, there are inconveniences such as a part of the toner container being cut and a process of replacing the lid being necessary and troublesome. An object of the present invention is to provide a toner container and an image forming apparatus provided with the toner container in which such disadvantages are eliminated.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and the invention according to claim 1 is a waste container that accommodates a toner container mounting portion on which a toner container can be mounted to replenish toner to the developing device and waste toner collected by the cleaning device. A toner container mounted on an image forming apparatus having a waste toner container mounting portion to which a toner container can be mounted, the toner container being provided in the toner container body, and recording means for recording a usage history of the toner container; It is provided in the toner container main body and can be moved between positions indicating that it is an unused new toner container, an empty toner container that has been emptied of toner, and a waste toner container. the toner container of the erroneous attachment preventing member to change the position based on the use history of the toner container by a drive mechanism provided in the forming apparatus, comprising the A.

The toner container further includes a lock mechanism that locks the movement of the erroneous attachment preventing member when the toner container is extracted from the image forming apparatus and is released when the toner container is attached to the image forming apparatus .

According to a third aspect of the present invention, there is provided a toner container mounting portion capable of mounting a toner container for replenishing toner to the developing device, and a waste toner container mounting portion capable of mounting a waste toner container for storing waste toner collected by the cleaning device. An image forming apparatus comprising: a reading unit that reads a recording content of a recording unit provided in the toner container; and a toner container that is disposed of for the first time based on a usage history of the toner container that is read by the reading unit. Identifies whether or not the toner container is installed in the toner container mounting portion, and if it is the first installation, moves between positions indicating a new toner container, an empty toner container, and a waste toner container. An image forming apparatus comprising: a drive unit configured to move an erroneous mounting prevention member provided in the toner container to a position indicating that the toner container is a waste toner container. It is.

The toner container mounting portion is configured to prohibit mounting of the toner container when the erroneous mounting prevention member of the toner container is set to a position indicating the waste toner container.
The image forming apparatus further includes detection means for detecting that the toner container is empty, and the drive means detects the erroneous attachment preventing member when the detection means detects that the toner container is empty. Is moved to a position indicating that it is an empty toner container.
Further, the waste toner container mounting portion is configured to allow the toner container to be mounted when the erroneous mounting prevention member of the toner container is set to a position indicating an empty toner container .

According to the first aspect of the present invention, there is provided a waste toner container capable of mounting a toner container mounting portion capable of mounting a toner container to replenish toner to the developing device and a waste toner container storing waste toner collected by the cleaning device. A toner container mounted on the image forming apparatus, the recording unit provided in the toner container main body for recording a usage history of the toner container, the toner container main body, An erroneous mounting preventing member whose position is changed based on a use history, and the erroneous mounting preventing member is used by a drive mechanism provided in the image forming apparatus in a mounted state, to a new unused toner container and toner. It is possible to move between empty toner containers that have been consumed and empty toner containers and positions that indicate waste toner containers .

The toner container further includes a lock mechanism that locks the movement of the erroneous attachment preventing member when the toner container is extracted from the image forming apparatus and is released when the toner container is attached to the image forming apparatus .

  As a result, there is no risk that the reused toner container containing the waste toner will be attached to the image forming apparatus again due to an erroneous operation. Troublesome processing such as replacement can be omitted.

[First Embodiment]
FIG. 1 is a conceptual diagram illustrating a main part of a configuration related to a toner container of an image forming apparatus 10 according to a first embodiment of the present invention. A part of the toner container 11 is mounted with a mismounting prevention member 19 and a storage medium 18 in which a use history of the toner container 11 is recorded. On the other hand, the image forming apparatus 10 is provided with a reading device 28 for reading the recorded contents of the storage medium 18 in addition to the control device 21.

  Based on the usage history of the toner container 11 recorded on the storage medium 18, the control device 21 rotates the gear 31 that meshes with the rack teeth 19 </ b> R formed on the erroneous mounting prevention member 19 by the drive mechanism 29, and the toner container 11. The erroneous mounting preventing member 19 mounted on the toner container 11 is moved to a position corresponding to the state of the toner container 11. The position according to the state of the toner container 11 and the driving of the erroneous mounting preventing member 19 will be described in detail later.

  FIG. 2 is a diagram for explaining an outline of the configuration of the image forming apparatus 10 and an example of the arrangement of the toner container mounting portions 11Y, 11C, 11M, and 11K and the waste toner container mounting portion 11D. Here, four image forming portions are illustrated. Although the tandem color image forming apparatus provided is shown, the present invention is not limited to this, and a color image forming apparatus of another type may be used, or a monochrome image forming apparatus having one image forming unit may be used. Good.

  The image forming apparatus 10 includes four image forming units 13Y, 13C, 13M, and 13K corresponding to colors of yellow (Y), cyan (C), magenta (M), and black (K), and image forming units 13Y to 13K. Are each provided with a photoconductor, a developing device, and a cleaning device 16, and are arranged in a row under the endless intermediate transfer belt 14 that moves in the direction of arrow a.

  On the upper side of the intermediate transfer belt 14, primary transfer devices 15Y, 15C, 15M, and 15K are arranged at positions corresponding to the photoreceptors of the image forming units 13Y to 13K with the intermediate transfer belt 14 interposed therebetween. A secondary transfer roller 17 is disposed downstream of the intermediate transfer belt moving direction with the intermediate transfer belt 14 interposed therebetween. Further, a cleaning device 16D for cleaning residual toner remaining on the intermediate transfer belt 14 is disposed upstream of the image forming unit 13Y in the moving direction of the intermediate transfer belt.

  The developing devices of the image forming units 13Y, 13C, 13M, and 13K are provided with toner container mounting portions 11Y, 11C, 11M, and 11K, respectively, and toner containers 11y, 11c, 11m, and 11k described later are detachably mounted. It is possible to supply toner to the developing devices from the toner containers 11y to 11k.

  Further, the waste toner collected by the cleaning device 16 that cleans the transfer residual toner remaining on the photoreceptors of the image forming units 13Y, 13C, 13M, and 13K and the transfer residual toner remaining on the intermediate transfer belt 14 are removed. A waste toner container mounting portion 11D for storing waste toner collected by the cleaning device 16D for cleaning is provided, and a waste toner container 11d described later is mounted. The cleaning devices 16 and 16D and the waste toner container mounting portion 11D are connected by a transport pipe.

  Since the above is the configuration of a known tandem color image forming apparatus, detailed description of the configuration will be omitted, and the image forming operation will be briefly described.

  Image signals of each color of yellow (Y), cyan (C), magenta (M), and black (K) are output to the image forming units 13Y, 13C, 13M, and 13K, and electrostatic latent images are sequentially formed on the respective photoconductors. Is formed. The electrostatic latent image is developed by a developing device, and the formed toner image is sequentially transferred onto the intermediate transfer belt 14 that moves in the direction of arrow a (in this order, Y, C, M, and K) and is transferred in full color. The toner image is formed.

  The full-color toner image formed on the intermediate transfer belt 14 is transferred and fixed on the transported recording medium at the position of the secondary transfer roller 17 and discharged to complete the formation of one image. . Thereafter, the transfer residual toner remaining on the respective photoreceptors of the image forming units 13Y, 13C, 13M, and 13K is recovered by the cleaning device 16, and the transfer residual toner remaining on the intermediate transfer belt 14 is recovered by the cleaning device 16D. Is done. The collected waste toner is conveyed to a waste toner container mounting portion 11D and stored in the waste toner container 11d.

  Next, the configuration of the toner container of the present invention will be described. In the above description of the image forming apparatus, the toner containers 11y, 11c, 11m, and 11k have been described. However, since the toner containers have a common configuration, in the following description, in the description of the common parts of the toner containers, the toner container 11 is used. A new toner container will be described as a toner container 11a, an empty toner container will be described as a toner container 11b, and a waste toner container will be described as a waste toner container 11d.

  FIG. 3 is a perspective view for explaining a mounting position of the erroneous mounting preventing member 19 to the toner container 11 and prevention of erroneous mounting, and 11p develops the toner when the toner container 11 is mounted on the toner container mounting portion of the developing device. A toner supply port for supplying to the apparatus.

  FIG. 3A is a view showing a new toner container 11a, and shows that the first tip 19a of the erroneous mounting preventing member 19 protrudes from the lower surface of the toner container 11a and is a new toner container.

  FIG. 3B shows the empty toner container 11b. The first tip 19a of the erroneous mounting preventing member 19 is retracted from the lower surface of the toner container 11 and does not protrude. When the new toner container 11a is mounted on the developing device of the image forming apparatus and the toner is supplied and the container is emptied, the erroneous mounting preventing member 19 is moved by an operation mechanism on the image forming apparatus described later, and the first tip 19a is the toner. It is retracted from the lower surface of the container 11 to indicate that it is an empty toner container 11b. The empty toner container 11b can be mounted on the toner container mounting portions 11Y to 11K of the image forming apparatus and also on the waste toner container mounting portion 11D.

  FIG. 3C shows a waste toner container 11d, which is shown upside down from FIGS. 3A and 3B. A second tip 19d opposite to the first tip 19a of the erroneous mounting preventing member 19 protrudes from the upper surface of the waste toner container 11d. When the empty toner container 11b is mounted on the waste toner container mounting portion 11D of the image forming apparatus, the erroneous mounting preventing member 19 is moved by an operation mechanism on the image forming apparatus described later, and the second tip 19d thereof is moved from the upper surface of the toner container 11. Projecting to indicate the waste toner container 11d.

  The waste toner container 11d is prohibited from being mounted on the toner container mounting portions 11Y, 11C, 11M, and 11K of the developing device because the second tip 19d of the erroneous mounting preventing member 19 protrudes from the upper surface of the waste toner container 11d. The mounting on the waste toner container mounting portion 11D is allowed.

  In the toner container 11 shown in FIGS. 3A to 3C, the erroneous mounting preventing member 19 is mounted on the end surface of the toner container 11, but the mounting position is not limited to the end surface of the toner container. In addition, the erroneous mounting preventing member 19 is also described on the assumption that the first tip 19a protrudes from the lower surface of the toner container 11a, the empty toner container 11c retracts from the lower surface, and the second tip 19d protrudes from the upper surface of the waste toner container 11d. However, it is not limited to this. Further, the toner supply port 11p provided in the toner container 11 is not limited to the illustrated position.

  FIG. 4 is a front view for explaining details of the erroneous mounting preventing member 19 shown in FIG. 3, and FIG. 5 is a cross-sectional view for explaining the configuration and operation of the erroneous mounting preventing member and its operation mechanism.

  The erroneous mounting preventing member 19 includes rack teeth 19R formed in the erroneous mounting preventing member 19 provided on the toner container 11 side, lock holes 19L1, 19L2, 19L3 formed in a part of the erroneous mounting preventing member 19, and the above The lock lever 19LB engages with the lock holes 19L1 to 19L3 and the lock release pin 32. The operation mechanism presses the lock release pin 32 of the toner container by mounting the gear 31 on the image forming apparatus side that meshes with the rack teeth 19R formed on the erroneous mounting prevention member 19 and the toner container 11 in the toner container mounting portion. It consists of the structure to do.

  In the new toner container 11a, the lock lever 19LB of the toner container is locked in the lock hole 19L1 of the erroneous mounting preventing member 19, and the first tip 19a of the erroneous mounting preventing member 19 is locked in a state protruding from the lower surface of the toner container 11. ing. FIG. 5A shows this state.

  When the new toner container 11a is mounted on the toner container mounting portion 11Y (the same applies to 11C, 11M, and 11K) of the image forming apparatus, the lock release pin 32 comes into contact with the wall surface of the toner container mounting portion 11Y, and the lock lever 19LB is shown in FIG. In step a), the lock lever 19LB, which has been pressed to the right and locked in the lock hole 19L1, is released.

  When the new toner container 11a is mounted on the toner container mounting portion, toner is supplied to the developing device. When the toner supply is completed and the toner container 11 is empty (the control device determines whether the toner container is empty). A signal indicating sky is transmitted to a control device (not shown), and the gear 31 is rotated a certain number of times by the signal from the control device, and is formed in the erroneous mounting preventing member 19 engaged with the gear 31. The rack teeth 19R thus moved are moved upward, and the first tip 19a of the erroneous mounting preventing member 19 is moved to a position where it does not protrude from the toner container 11.

  When the toner container 11a is extracted from the toner container mounting portion 11Y (the same applies to 11C, 11M, and 11K) of the image forming apparatus, the lock release pin 32 releases the press of the lock lever 19LB, and the lock lever 19LB is locked in the lock hole 19L2. Then, the erroneous mounting preventing member 19 is fixed. FIG. 5B shows this state.

  When the waste toner container 11d is attached to the waste toner container attachment portion 11D of the image forming apparatus, the lock lever 19LB is pressed rightward in FIG. 5 by the lock release pin 32, and the lock lever 19LB is unlocked. The recorded content of the storage medium 18 is read by the reading device 28.

  When it is confirmed that the waste toner container 11d attached by the control device (not shown) is attached to the image forming apparatus for the first time, the gear 31 provided on the image forming apparatus side rotates a certain number of times, and the erroneous engagement with the gear 31 occurs. The rack teeth 19R formed on the mounting preventing member 19 are moved downward in FIG. 5C, and the second tip 19d of the erroneous mounting preventing member 19 is the upper surface of the toner container 11 (the lower surface in FIG. 5C). Move to a position protruding from

  When the toner container 11a is extracted from the waste toner container mounting portion 11D of the image forming apparatus, the lock release pin 32 releases the right-hand pressing of the lock lever 19LB in FIG. 5, and the lock lever 19LB is locked in the lock hole 19L3. The erroneous mounting preventing member 19 is fixed. FIG. 5C shows this state.

  When the waste toner container 11d is not first attached to the image forming apparatus, the above process is not executed. If necessary, it is displayed on the display device that the waste toner container is not first attached to the image forming apparatus.

  In the above configuration, the rack and the gear mechanism are used for the operation of the erroneous mounting preventing member 19, but other appropriate means can also be used.

[Second Embodiment]
The image forming apparatus according to the second embodiment basically has the same configuration as that of the image forming apparatus according to the first embodiment described with reference to FIG. A toner container, which is a specific configuration of the second embodiment, and a configuration related thereto will be described.

  FIG. 6 is a conceptual diagram illustrating the main part of the configuration relating to the toner container of the image forming apparatus according to the second embodiment of the present invention. Similarly to the toner container 11 of the first embodiment, the toner container 42 of the second embodiment is used by being mounted on the toner container mounting portions 11Y to 11K and the waste toner container mounting portion 11D of the image forming apparatus. However, the erroneous mounting preventing member 19 provided in the toner container 11 of the first embodiment is not provided, and any of the toner container mounting portions 11Y to 11K and the waste toner container mounting portion 11D is provided. It can be installed.

  The toner container 42 of the second embodiment is provided with a toner supply port 42a in a part thereof, and a shutter member 43 is provided in the toner supply port 42a. A shutter member 46 is provided in the toner supply tube 45 on the developing device side of the image forming apparatus 40.

  A storage medium 48 in which a usage history of the toner container 42 is recorded is attached to the toner container 42. On the other hand, on the image forming apparatus 40 side, in addition to the control device 41, a reading device 49 for reading the recorded contents of the storage medium 48 is provided. Further, the image forming apparatus 40 is provided with an opening / closing gear 50 for opening / closing the shutter member 46 of the toner supply tube 45 on the developing device side, and a drive mechanism 51 for driving the opening / closing gear 50.

  FIG. 7 is a cross-sectional view illustrating a driving mechanism for driving the toner supply port 42a of the toner container 42, the shutter member 43, and the shutter member 46 on the developing device side, and FIG. 7A shows the toner container 42 mounted on the toner container. FIG. 11 is a cross-sectional view showing a state in which the toner container 42 is mounted only when the toner container 42 is mounted, and the shutter member 43 of the toner container 42 and the shutter member 46 of the toner supply pipe 45 are both closed. Therefore, the toner does not enter the toner supply tube 45.

  The shutter member 46 of the toner supply tube 45 is provided with a locking portion 46a for locking the shutter member 43 of the toner container 42, and when the shutter member 43 of the toner container moves to the opening position, the shutter member of the toner supply tube 45. 46 is also configured to move to the opening position.

  When the toner container 42 is mounted on the toner container mounting portion 11Y (the same applies to 11C, 11M, and 11K), the control device 41 reads the recorded content of the storage medium 48, and there is toner in the toner container, and the waste toner container mounting portion. If there is no history of attachment to 11D, the drive mechanism 51 is operated to rotate the opening / closing gear 50 a predetermined number of times to move the shutter member 43 and the shutter member 46 of the toner supply pipe to the open position. FIG. 7B shows this state.

  The toner stored in the toner container 42 is supplied to the developing device through the toner supply tube 45. When there is no toner in the toner container and there is a history of mounting on the waste toner container mounting portion 11D, the shutter member 43 and the shutter member 46 are prohibited from moving to the opening position and an error is displayed.

  The moving mechanism of the shutter member 43 and the shutter member 46 is not limited to the above-described configuration, and a solenoid or the like may be used.

  When the toner contained in the toner container 42 is supplied to the developing device via the toner supply tube 45 and the toner container 42 becomes empty (the control device includes a sensor for monitoring whether the toner container is empty or not. ), A signal indicating sky is transmitted to the control device 41, and the drive mechanism 51 is operated by the signal from the control device to rotate the opening / closing gear 50 a predetermined number of times to close the shutter member 43 and the shutter member 46 of the toner supply pipe. The position is moved to the position shown in FIG.

  FIG. 8 is a cross-sectional view for explaining a toner supply port, a shutter member, and a drive mechanism for driving the shutter member when the toner container 42 of the second embodiment is used as a waste toner container 42d. ) Shows a state where the waste toner container 42d is mounted on the waste toner container mounting portion 11D. In FIG. 8 (a), the figure shown in FIG. 7 is upside down, but this shows a state where it is mounted as a waste toner container 42d.

  When the waste toner container 42d is mounted on the waste toner container mounting portion 11D, the control device 41 reads the recorded content of the storage medium 48, and there is no toner in the toner container, and the history of mounting on the waste toner container mounting portion 11D. If there is not, the drive mechanism 51 is operated to rotate the opening / closing gear 50 a predetermined number of times to move the shutter member 43 and the shutter member 46 of the toner supply pipe to the open position. FIG. 8B shows this state.

  When the toner container 42 is used as the waste toner container 42d for the first time, the information is recorded in the storage medium 48. Further, when the toner container 42 is mounted on the waste toner container mounting portion 11D as the waste toner container 42d and there is toner in the toner container or information used as a waste toner container is recorded, the shutter is used. The opening / closing operation of the member 43 and the shutter member 46 is not performed. If the waste toner container 42d is full of waste toner, the information is recorded in the storage medium 48, and the shutter member 43 and the shutter member 46 are closed.

  As described above, the embodiment of the present invention has been described using the tandem color image forming apparatus, but it goes without saying that the present invention can be applied to image forming apparatuses other than this system. Although the developing device has been described as a toner replenishing type developing device, the present invention is a toner cartridge in which a developing roller, a supply roller, and a toner hopper are integrated, and an imaging cartridge in which a photosensitive member, a developing device, and a toner hopper are integrated. It can also be applied to.

  A toner container for an image forming apparatus that is used as a toner container that supplies toner to a developing device, and then when the empty toner container is reused as a waste toner container, the waste toner container is not erroneously attached to the developing device. Thus, a toner container provided with erroneous mounting prevention means, and an image forming apparatus suitable for mounting the toner container.

FIG. 3 is a conceptual diagram illustrating a main part of a configuration related to a toner container of the image forming apparatus according to the first embodiment of the present invention. 2 is a diagram illustrating an outline of a configuration of an image forming apparatus and an example of an arrangement of a toner container mounting unit and a waste toner container mounting unit. FIG. 6 is a perspective view for explaining a mounting position of an erroneous mounting preventing member on a toner container and prevention of erroneous mounting. The front view explaining the detail of the incorrect mounting | wearing prevention member shown in FIG. Sectional drawing explaining the structure and operation | movement of an incorrect mounting | wearing prevention member and its operation mechanism. FIG. 10 is a conceptual diagram illustrating a main part of a configuration related to a toner container of an image forming apparatus according to a second embodiment of the present invention. FIG. 10 is a cross-sectional view illustrating a toner supply port, a shutter member, and a drive mechanism that drives the shutter member of a toner container according to a second embodiment. FIG. 6 is a cross-sectional view illustrating a toner supply port, a shutter member, and a drive mechanism that drives the shutter member when the toner container of the second embodiment is used as a waste toner container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image forming apparatus 11, 11y, 11c, 11m, 11k Toner container 11Y, 11C, 11M, 11K Toner container mounting part 11D Waste toner container mounting part 11a New toner container 11b Empty toner container 11d Waste toner container 11p Toner supply port 13Y , 13C, 13M, 13K Image forming unit 14 Intermediate transfer belt 15Y, 15C, 15M, 15K Primary transfer device 16, 16D Cleaning device 17 Secondary transfer device 18 Storage medium 19 Incorrect mounting prevention member 19a First tip (incorrect mounting prevention member) First tip of
19d Second tip (second tip of the erroneous mounting preventing member)
19R Rack teeth 19L1, 19L2, 19L3 Lock hole 19LB Lock lever 20 Image forming device 21 Control device 28 Reading device 29 Drive mechanism 31 Gear 32 Lock release pin 40 Image forming device 41 Control device 42 Toner container 42a Toner supply port 42d Waste toner container 43 Shutter member (shutter member for toner supply port)
45 Toner supply pipe 46 Shutter member (shutter member of toner supply pipe)
48 Storage medium 49 Reading device 50 Opening / closing gear 51 Drive mechanism

Claims (6)

Image forming apparatus comprising: a toner container mounting portion capable of mounting a toner container to replenish toner to the developing device; and a waste toner container mounting portion capable of mounting a waste toner container storing waste toner collected by the cleaning device. A toner container attached to the apparatus,
A recording means provided in the toner container body for recording a use history of the toner container;
Provided in the toner container main body, and is movable between positions indicating that the toner container is a new unused toner container, an empty toner container that has been emptied of toner, and a waste toner container. An erroneous attachment preventing member whose position is changed based on a use history of the toner container by a driving mechanism provided in the image forming apparatus;
A toner container comprising: The toner container according to claim 1, further comprising: a lock mechanism that locks the movement of the erroneous attachment preventing member when it is extracted from the image forming apparatus and is released when the image forming apparatus is attached to the image forming apparatus. . Image forming apparatus comprising: a toner container mounting portion capable of mounting a toner container to replenish toner to the developing device; and a waste toner container mounting portion capable of mounting a waste toner container storing waste toner collected by a cleaning device. A device,
Reading means for reading the recorded contents of the recording means provided in the toner container;
Based on the usage history of the toner container read by the reading means, it is identified whether or not the toner container is first mounted on the waste toner container mounting portion. Drive means for moving an erroneous attachment preventing member provided in the toner container to be movable between positions indicating the container, the empty toner container, and the waste toner container to a position indicating the waste toner container; ,
An image forming apparatus comprising: 4. The toner container mounting portion is configured to have a shape that prohibits mounting of a toner container when an erroneous mounting preventing member of the toner container is set at a position indicating a waste toner container. The image forming apparatus described in 1. The image forming apparatus further includes detection means for detecting that the toner container is empty,
5. The drive unit according to claim 3, wherein when the detection unit detects that the detection unit is empty, the drive unit moves the erroneous mounting prevention member to a position indicating an empty toner container. 6. Image forming apparatus. The waste toner container mounting portion is configured to allow the toner container to be mounted when an erroneous mounting preventing member of the toner container is set at a position indicating an empty toner container. The image forming apparatus according to any one of 3 to 5.

Images