JP2016085340A - Toner cartridge and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toner cartridge having a bag filling part that is filled with a developer, the toner cartridge capable of supplying, even when the developer in the bag filling part is aggregated, a developer that is not aggregated to a developing device; and an image forming apparatus.SOLUTION: There is provided a toner cartridge that is removably attached to a developing device and supplies a developer to the developing device, the toner cartridge including a developer storage part that stores a bag filling part filled with the developer and a stirring part that stirs the developer having flowed out from the bag filling part. Also provided is an image forming apparatus.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a toner cartridge provided with a developer accommodating portion for accommodating a bag filling portion filled with a developer, and an image forming apparatus such as a printer and a copying machine having the toner cartridge.

  In a general electrophotographic image forming apparatus, an electrostatic latent image formed on an image carrier based on image information is visualized by a developer supplied from a toner cartridge. Usually, the toner cartridge is configured to be detachable from the developing device having the image carrier as a component, and is removed from the developing device when the replacement time comes due to the consumption of the developer. And replaced with a new toner cartridge.

  Among such toner cartridges, there is a cartridge in which a bag body filled with a developer is provided in a frame, and the developer is supplied to the developing device from the opened bag body (see, for example, Patent Document 1).

JP 2000-238843 A

  However, in the prior art, when the developer is aggregated in the bag, the aggregated developer is supplied to the developing device, and when this is used for image formation, the image quality is lowered. There was a problem.

  The present invention has been made in view of such a situation, and an object of the present invention is a case where a developer in a bag filling portion aggregates in a toner cartridge having a bag filling portion filled with a developer. Another object of the present invention is to provide a toner cartridge and an image forming apparatus capable of supplying a developer that is not aggregated to the developing device.

  In order to solve the above problems, a toner cartridge according to the present invention is a toner cartridge that is detachably attached to a developing device and supplies the developer to the developing device, and is filled with the developer. And a developer containing portion for containing the bag filling portion, and a stirring portion for stirring the developer flowing out from the bag filling portion.

  In addition, an image forming apparatus according to the present invention includes a developing device in which the toner cartridge can be attached and detached, a transfer device for transferring a developer image developed in the developing device to a predetermined recording medium, and an image on the recording medium. And a fixing device for fixing the developer image.

  According to the present invention, in a toner cartridge having a bag filling portion filled with a developer, even when the developer in the bag filling portion is aggregated, the developer that is not aggregated is supplied to the developing device. It is possible to provide a toner cartridge and an image forming apparatus.

1 is a schematic diagram illustrating a configuration of a printer 100 as an image forming apparatus to which a toner cartridge according to an exemplary embodiment is applied. FIG. 2 is a schematic cross-sectional view for explaining the configuration of the image forming unit 1. FIG. 3 is an exploded perspective view illustrating a configuration of a toner cartridge 30a according to the present embodiment. FIG. 3 is an exploded perspective view illustrating a configuration of a toner cartridge 30 according to a comparative example. 3 is a perspective view illustrating a configuration of a toner column 40 as a bag filling unit according to the present embodiment. FIG. FIG. 6 is an exploded perspective view illustrating the configuration of another toner cartridge 30b according to the present embodiment. FIG. 4A is a perspective view illustrating a state where a toner supply port 31a of the toner cartridge 30a is closed. (B) It is a perspective view which shows the state by which the toner supply port 31a was released by rotating the operation lever 35a.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.

  FIG. 1 is a schematic diagram illustrating a configuration of a printer 100 as an image forming apparatus to which a toner cartridge according to the present embodiment is applied. The printer 100 according to the present embodiment is a color tandem system that forms a color image by superimposing toners as four types of developers of black (K), yellow (Y), magenta (M), and cyan (C). This is an image forming apparatus.

  The printer 100 follows a paper transport path S formed in a substantially S-shape starting from a paper feed cassette 3 that stores paper P and starting from a transport roller 4, a transfer device 5, a fixing device 8, and a stacker 9. Image forming units 1K, 1Y, 1M, and 1C are provided from the upstream side to the downstream side in the paper conveyance direction. These image forming units develop toner images corresponding to the respective toner colors using toner supplied from the toner cartridge.

  The paper P is a recording medium for recording a monochrome or color image, and is generally plain paper, recycled paper, glossy paper, high-quality paper, or an OHP film.

  The paper feed cassette 3 stores the paper P in a stacked state, and is detachably attached to the lower part of the printer 100. A hopping roller (not shown) disposed on the upper portion of the paper feed cassette 3 separates the paper P stored in the paper feed cassette 3 one by one from the uppermost portion and feeds it to the paper transport path S.

  The transport roller 4 corrects the skew of the paper P fed from a hopping roller (not shown) and transports the paper P to the transfer belt 6 of the transfer device 5.

  The transfer device 5 includes a transfer belt 6 and a transfer roller 7. The transfer belt 6 is an endless belt member capable of electrostatically attracting the paper P, and is a transport unit for transporting the paper P into the image forming unit and developing an image based on image information. The transfer roller 7 is positioned below the photoconductor described later on the inner periphery of the transfer belt 6, and is rotatably provided in a state of being pressed against the photoconductor via the transfer belt 6. A voltage having a reverse polarity to the voltage applied to the photoconductor is applied to the transfer roller 7, and the toner image formed on the surface of the photoconductor can be transferred onto the paper P.

  The fixing device 8 is provided on the downstream side of the sheet transport path S after the image forming units 1K, 1Y, 1M, and 1C, and includes a fixing roller 8a, a pressure roller 8b, a thermistor (not shown), and the like. In the fixing roller 8a, for example, a hollow cylindrical core made of aluminum or the like is coated with a heat-resistant elastic layer of silicone rubber, and a PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer) tube is coated thereon. Is formed by. In the core bar, for example, a heater such as a halogen lamp is provided. The pressure roller 8b has a configuration in which, for example, a metal core made of aluminum or the like is covered with a heat-resistant elastic layer of silicone rubber, and PFA is covered thereon, so that a pressure contact portion is formed between the pressure roller 8b and the fixing roller 8a. It is arranged. The thermistor (not shown) is a means for detecting the surface temperature of the fixing roller 8a, and is disposed in the vicinity of the fixing roller 8a in a contact or non-contact manner. By controlling the heater based on the detection result of the surface temperature of the fixing roller 8a detected by a thermistor (not shown), the surface temperature of the fixing roller 8a is maintained at a predetermined temperature. When the paper P on which the toner image has been transferred passes through a pressure contact portion formed by the fixing roller 8a and the pressure roller 8b maintained at a predetermined temperature, heat and pressure are applied to the toner on the paper P. The toner melts and the toner image is fixed.

  The stacker 9 is formed using the outer casing of the printer 100, and stacks the paper P that passes through the fixing device 8 and is discharged to the outside of the printer 100.

  By the way, an exposure device 2 (2K, 2Y, 2M, 2C) for irradiating light based on image information is provided immediately above a photoconductor described later. The exposure apparatus 2 is, for example, an LED head having a light emitting element such as an LED (Light Emitting Diode) element and a lens array. The light emitted from the LED element based on the image information is disposed at a position where an image is formed on the surface of the photoreceptor.

  Next, the configuration of the image forming units 1K, 1Y, 1M, and 1C will be described. The configuration of the image forming units 1K, 1Y, 1M, and 1C is different only in the toner to be accommodated. Therefore, the description here excludes the symbols K, Y, M, and C for identifying the respective image forming units. explain.

  FIG. 2 is a schematic cross-sectional view for explaining the configuration of the image forming unit 1. The image forming unit 1 includes a developing unit 10 and a toner cartridge 30a.

  The developing unit 10 is formed on the surface of the photoconductor 11, a photoconductor 11 as an image carrier that carries an electrostatic latent image based on image information, a charging roller 19 that uniformly charges the surface of the photoconductor 11. A developing roller 12 that develops the toner image by attaching toner to the electrostatic latent image, a toner supply roller 13 that supplies toner to the developing roller 12, and a developing blade that regulates the toner layer thickness on the surface of the developing roller 12 15, a cleaning blade 18 that cleans the surface of the photoreceptor 11, and a toner storage chamber 22 that stores the toner supplied from the toner cartridge 30 a.

  The photoreceptor 11 includes a conductive support and a photoconductive layer. For example, a charge generation layer and a charge transport layer as a photoconductive layer are sequentially stacked on a metal shaft such as aluminum as a conductive support. Organic photoconductor. The photoreceptor 11 forms an electrostatic latent image on the surface by the irradiation light emitted from the exposure device 2 based on the image information.

  The charging roller 19 is a roller member made of, for example, a metal shaft and semiconductive epichlorohydrin rubber. The charging roller 19 is in contact with the photosensitive member 11 with a predetermined pressure, and uniformly charges the surface of the photosensitive member 11 based on a charging bias voltage from a high voltage power source (not shown).

  The developing roller 12 is, for example, a urethane member in which carbon black is dispersed on the outer periphery of a metal shaft such as stainless steel, and the surface thereof is a roller member subjected to an isocyanate treatment. The developing roller 12 is disposed so as to be in pressure contact with the surface of the photoconductor 11 and supplies toner to the electrostatic latent image on the surface of the photoconductor 11 to develop the toner image.

  The toner supply roller 13 is a roller member configured by disposing a semiconductive foaming silicone sponge layer on the outer periphery of a metal shaft such as stainless steel. The toner supply roller 13 is in contact with the developing roller 12 with a predetermined pressure, and supplies the toner supplied from the toner cartridge 30 a to the developing roller 12.

  The developing blade 15 is a plate-like member made of a metal plate such as stainless steel, and is sandwiched between the support member 16 and the support member 17 so as to overlap each other, and is fastened together with screws (not shown). The developing blade 15 is disposed so that one end of the developing blade 15 abuts in a counter direction at a predetermined position on the surface of the developing roller 12 and uniformly regulates the toner layer thickness on the surface of the developing roller 12.

  The cleaning blade 18 is obtained by strongly bonding a rubber material such as urethane rubber to the bracket 24 by an adhesive method such as hot melt, and the bracket 24 is supported by the base frame member 20. The cleaning blade 18 is in contact with the photosensitive member 11 with a predetermined pressure, and scrapes off the toner remaining on the photosensitive drum 11 after the transfer. A waste toner conveying member 23 made of a spiral or a coil spring is provided at the lower part of the cleaning blade 18, and the toner scraped off by the cleaning blade 18 is used as waste toner in a toner cartridge 30 a to be described later by the waste toner conveying member 23. Is collected in the waste toner storage chamber 31d.

  The toner storage chamber 22 is a space that is formed by the base frame member 20 and temporarily stores toner supplied through a toner supply port 29a of a toner cartridge 30a described later. The toner storage chamber 22 is provided immediately above the toner supply roller 13 and supplies the stored toner to the toner supply roller 13.

  Incidentally, the photoconductor 11 and the charging roller 19 are supported by side frames (not shown) arranged on the left and right of the photoconductor 11 in the axial direction. Further, the developing roller 12, the toner supply roller 13, and the developing blade 15 are also supported by side frames (not shown) arranged on the left and right in the axial direction of the photoconductor 11, and these constitute the developing unit 10. The members constituting the developing unit 10 designated by these side frames (not shown) are held by the base frame member 20 and covered with the cover frame member 21. Above the cover frame member 21, a toner cartridge 30a for supplying toner to the toner storage chamber 22 is disposed, and a toner supply port 21a for supplying toner is provided.

  The toner cartridge 30a includes a toner storage chamber 31c as a toner storage unit for storing new toner for supplying toner to the development unit 10, and a discarding unit for storing toner discharged from the development unit 10 as waste toner. A toner storage chamber 31d is formed, and these are separated by a wall 31g.

  The toner storage chamber 31c is configured such that the side surface portion is substantially rectangular and has a rectangular shape that is long in the direction perpendicular to the conveyance direction of the paper P, and includes a bag filling portion filled with new toner. The toner storage chamber 31c is connected to an agitation unit 31h that agitates the toner supplied from the bag filling unit. The stirrer 31h is formed in a cylindrical shape having a substantially cylindrical side surface and long in the direction perpendicular to the conveyance direction of the paper P, and includes a stirrer space 32a formed from the inner cartridge 32 and a toner stirrer bar 33. . The agitation space 32a is a space for agitating the toner supplied from the bag filling portion with the toner agitation bar 33, and the toner agitated in the agitation space 32a passes through an opening 32b and a shutter portion 32c described later. To the toner storage chamber 22.

  The toner stirring bar 33 is provided so as to be rotatable in the stirring space 32a, and stirs and conveys the toner. The toner stirring bar 33 includes a rotating shaft portion 33a made of a hard material and a plate-shaped rotating member 33b extending from the rotating shaft portion 33a toward the cylindrical inner wall in the longitudinal direction of the stirring space 32a. Prepare. The rotating member 33b can be made of, for example, a resin such as PET, PS, or ABS. However, the rotating member 33b is not limited to this, and may be made of, for example, a crank member made of a metal material such as a SUS material.

  The waste toner storage chamber 31d is configured to have a substantially rectangular side surface and a rectangular shape that is long in the direction perpendicular to the conveyance direction of the paper P, and stores the toner discharged from the developing unit 10 as waste toner. The waste toner storage chamber 31d is provided in parallel with the rectangular toner storage chamber 31c via the wall 31g.

  3 is an exploded perspective view of the configuration of the toner cartridge 30a according to this embodiment, FIG. 4 is an exploded perspective view illustrating the configuration of the toner cartridge 30 according to the related art, and FIG. This will be described with reference to a perspective view illustrating the configuration of the toner column 40 as the bag filling portion. In the configuration of the toner cartridge 30a according to the present embodiment and the toner cartridge 30 according to the related art, components that can be configured identically will be described with the same reference numerals.

  As shown in FIG. 3, the toner cartridge 30 a according to the present embodiment includes an outer cartridge 31 that is a developer container, an inner cartridge 32 that is a shutter member, and a side cover plate 38. The outer cartridge 31 is provided with a toner supply port 31 a and an insertion port 31 b for inserting the inner cartridge 32. An operation lever 35a is engaged with the inner cartridge 32. By rotating the operation lever 35a to a restricting portion 31e that restricts the rotation range of the operation lever 35a provided on the outer cartridge 31, FIG. The toner supply to the toner storage chamber 22 of the developing unit 10 shown in FIG. The toner is supplied to the toner storage chamber 22 through an opening 32b and a shutter 32c provided in the inner cartridge 32.

  The side cover plate 38 includes a seal sponge 37 a for preventing toner leakage inside, and is disposed so as to close one end of the outer cartridge 31 so that toner does not spill from the outer cartridge 31. Further, the side cover plate 38 is provided with a gear member 39 for rotationally driving at the same position as the central axis of the inner cartridge 32. The center of the gear member 39 serves as a bearing, and the inner cartridge 32 is shown in FIG. A toner stirring bar 33 is disposed.

  Incidentally, in the toner filling according to the comparative example, after the toner cartridge 30 shown in FIG. 4 is assembled, the toner containing chamber 31 c is filled through the toner filling port 35 b provided in the operation lever 35 and sealed with the cap 36. It was done by that.

  In this embodiment, as shown in FIGS. 3 and 5, after the toner 42 is packed in a bag body 41 as a bag filling portion, the defoamed or vacuum defoamed toner column 40 is placed in the toner storage chamber 31c (stirring). Part 31h upper part). The bag body 41 is, for example, a bag made of a flexible polyethylene film (ultra thin type thickness of about 0.01 to 0.05 mm), and matches the shape of the outer cartridge 31 to which the toner column 40 is mounted. Thus, it is formed by defoaming or vacuum defoaming in a mold (not shown). The bag body 41 of the toner column 40 is provided with a perforation 41a at a position that becomes a bottom portion after being mounted, and can be fixed between the toner storage chamber 31c and the wall 31g of the waste toner storage chamber 31d. In addition, a double-sided tape 43 is provided on the side surface side. Further, a resin 44 of about 10 g to 20 g is fixed to the top surface of the toner column 40 by adhesion or double-sided tape. As shown in FIG. 3, a double-sided tape 45 is provided on the rib 32d of the inner cartridge 32 with which the toner column 40 comes into contact, so that the toner column 40 can be bonded and fixed.

  In the comparative example shown in FIG. 4, the seal sponge 37 provided in the side cover plate 38 is a high density and extremely delicate uniform cell for the purpose of sealing both the toner storage chamber and the waste toner storage chamber of the outer cartridge 31A. It had to be formed as a highly functional urethane foam having a structure, and it was necessary to use an expensive one. On the other hand, in the present embodiment, the toner 42 is packed in the bag body 41 and does not flow out, so that the shape of the seal sponge 37a is from the portion corresponding to the fixing position of the toner column 40 in the toner storage chamber 31c. It can be set as the shape which cut | disconnected the upper side. Further, for example, as shown in FIG. 6, the seal sponge 37b may have a shape in which only the opening leading to the waste toner storage chamber 31d is closed. A hole 31f having a diameter of about 1 mm is provided on the side surface of the outer cartridge 31 according to the present embodiment above the fixing position of the toner column 40 in the toner storage chamber 31c and at a position that is a conspicuous appearance that is a concave portion of the rib surface. There are several places regularly.

    Next, an image forming operation of the printer 1 according to the present embodiment will be described.

  When the image information is input and the image forming process is started, the photoconductor 11 in the developing unit 10 shown in FIG. 2 is driven at a constant peripheral speed by the driving force transmitted from a driving source (not shown) in the direction of the arrow. Start rotating. A charging roller 19 that is in contact with the surface of the photoconductor 11 with a predetermined pressure uniformly charges the surface of the photoconductor 11 based on a charging bias voltage applied from a high voltage power source (not shown). Next, irradiation light corresponding to the input image information is irradiated by the exposure device 2 disposed facing the photoconductor 11, and the potential of the light irradiation portion on the surface of the photoconductor 11 is attenuated and electrostatically discharged. A latent image is formed.

  As the photoconductor 11 is driven to rotate, the toner supply roller 13 to which the drive of the photoconductor 11 is transmitted via a transmission unit (not shown) starts to rotate in the direction of the arrow in the figure. As the toner supply roller 13 rotates, the toner 42 is agitated while the toner agitation bar 33 in the agitation unit 31h disposed above the toner supply roller 13 rotates.

  The developing roller 12 is disposed so as to be in pressure contact with the surface of the photoconductor 11, and a developing bias voltage is applied from a high voltage power source (not shown). The developing roller 12 attracts the toner 42 conveyed from the toner supply roller 13 and rotates and conveys the toner 42 to the photoreceptor 11. In this rotational conveyance process, the developing blade 15 disposed in pressure contact with the developing roller 12 forms a toner layer in which the toner 42 adsorbed on the developing roller 12 is made to have a uniform thickness.

  The developing roller 12 reversely develops the electrostatic latent image formed on the surface of the photoreceptor 11 with the toner 42 carried thereon. Since a bias voltage is applied between the conductive support of the photoconductor 11 and the developing roller 12 by a high voltage power source (not shown), the surface of the photoconductor 11 is interposed between the developing roller 12 and the photoconductor 11. Electric lines of force are generated along with the formed electrostatic latent image. For this reason, the charged toner 42 on the developing roller 12 adheres to the electrostatic portion on the photoconductor 11 by electrostatic force, and this portion is developed to form a toner image.

  The toner image formed on the surface of the photoconductor 11 is transferred to the paper P by a transfer roller 7 to which a transfer bias voltage is applied from a high voltage power source (not shown) at the timing when the paper P is conveyed to the transfer belt 6. The The image forming process is sequentially performed in the image forming units 1Y, 1M, and 1C after the image forming unit 1K, and the toner images formed in these image forming units 1 are sequentially transferred onto the paper P, whereby a color image is formed. Will be formed.

  Thereafter, the paper P is conveyed to the fixing device 8. The sheet P on which the toner image has been transferred is controlled by a temperature control means (not shown) and conveyed to a pressure contact portion formed by a fixing roller 8a and a pressure roller 8b maintained at a predetermined surface temperature. The toner 42 is melted by the heat applied from the fixing roller 8 a and is further pressed against the pressure contact portion, whereby the toner image is fixed on the paper P.

  The paper P on which the toner image is fixed is discharged to the stacker 9, and a series of image forming processes is completed.

  Note that some toner 42 may remain on the surface of the photoconductor 11 after the toner image is transferred. The remaining toner 42 is removed by the cleaning blade 18. In the state where the cleaning blade 18 is in contact with the surface of the photoconductor 11, the toner 42 remaining without being transferred is removed by rotating the photoconductor 11 about the rotation axis. The removed toner 42 is transported and collected by the waste toner transport member 23 to the waste toner storage chamber 31d of the toner cartridge 30a. The cleaned photoreceptor 11 is repeatedly used in the next image forming process.

  In the image forming process, the toner 42 is supplied to the toner storage chamber 22 of the developing unit 10 by rotating the shutter portion 32c of the inner cartridge 32 provided in the toner cartridge 30a and opening the opening 32b to the outer cartridge 31. The toner supply port 31a is released by matching with the toner supply port 31a, and the toner supply port 21a provided in the cover frame 21 of the developing unit 10 is used.

  FIG. 7A is a perspective view showing a state where the toner cartridge 30a alone is not attached to the developing unit 10, that is, the toner supply port 31a is closed, and FIG. FIG. 6 is a perspective view showing a state in which the toner supply port 31a is released by rotating the lever 35a in the direction of arrow A in the drawing. Actually, the operation lever 35a is configured so as not to rotate unless the toner cartridge 30a is attached to the developing unit 10.

  When the toner cartridge 30a is attached to the developing unit 10, a gear (not shown) provided on the cover frame 21 of the developing unit 10 meshes with the drive gear 39 of the toner cartridge 30a. As a result, when the developing unit 10 (toner supply roller 13) is driven, the drive gear of the toner cartridge 30a starts to be driven, the toner stirring bar 33 inside the toner cartridge 30a is rotated, and the toner 42 can be stirred.

  As described above, the toner column 40 is fixed at the two locations of the wall 31g between the toner storage chamber 31c and the waste toner storage chamber 31d and the rib 32d of the inner cartridge 32, and the toner supply port 31a in between is a sewing machine. An eye 41a is provided. Here, when the operation lever 35a is rotated, the portion of the toner column 40 fixed to the rib 32d of the inner cartridge 32 starts to rotate. Then, the bag body 41 of the toner column 40 is torn along the perforation 41a, and the toner 42 flows out into the toner storage chamber 31c. The toner 42 may be solidified and solidified inside the bag body 41 by defoaming or vacuum defoaming. However, since the stirring portion 31h is provided below the fixing position of the toner column 40, the aggregation of the toner 42 occurs. Can be solved. The toner 42 whose aggregation has been released is supplied to the toner storage chamber 22 of the developing unit 10.

  A resin 44 is bonded or fixed to the top surface of the toner column 40 with adhesive or double-sided tape, which promotes free deformation of the flexible bag body 41 and plays the role of a weight. When the weight is lowered, the toner 42 in the bag body 41 does not remain and all the toner 42 can be taken out from the bag body 41.

  When the toner cartridge 30 a is attached to the developing unit 10, the toner 42 only flows downward. Therefore, several holes 31 f provided in the outer cartridge 31, the side cover plate 38, the outer cartridge 31, The seal sponge 38a has a shape different from that of the comparative example at the joint portion, and there is no influence of gaps and the like, and there is no fear of toner leakage or spillage. As described above, in this embodiment, even if the sealing performance of the frame is low, the toner 42 does not leak from the developing unit 10 (image forming unit 1) to which the toner cartridge 30a is mounted. Cost can be reduced.

  As described above, according to the present embodiment, in a toner cartridge having a bag filling portion filled with a developer, even when the developer in the bag filling portion is agglomerated, the developer is agglomerated with respect to the developing device. It is possible to provide a toner cartridge and an image forming apparatus capable of supplying an undeveloper.

  In the description of the embodiments of the present invention, a printer has been described as a suitable example of an image forming apparatus. However, the present invention is not limited to this, and for example, image forming such as a copying machine, a FAX, an MFP, or the like. The present invention can also be applied to a device.

1 (1K, 1Y, 1M, 1C) Image forming unit 2 (2K, 2Y, 2M, 2C) Exposure device 3 Paper feed cassette 4 Conveying roller 5 Transfer device 6 Transfer belt 7 Transfer roller 8 Fixing device 8a Fixing roller 8b Pressure Roller 9 Stacker 10 Developing unit 11 Photoconductor 12 Developing roller 13 Toner supply roller 15 Developing blades 16 and 17 Support member 18 Cleaning blade 19 Charging roller 20 Base frame member 21 Cover frame member 22 Toner storage chamber 23 Waste toner transport member 24 Bracket 30 , 30a, 30b Toner cartridge 31, 31A Outer cartridge 31a Toner supply port 31b Insertion port 31c Toner storage chamber 31d Waste toner storage chamber 31e Restriction portion 31f Hole 31g Wall 31h Stirring portion 32 Inner cartridge 32a Stirring space 32b Open Port 32c Shutter 32d Rib 33 Toner stirring bar 33a Rotating shaft 33b Rotating member 35, 35a Operation lever 35b Toner filling port 36 Cap 37, 37a, 37b Seal sponge 38 Side cover plate 40 Toner column 41 Bag body 41a Perforation 42 Toner 43 Double-sided tape 44 Resin 45 Double-sided tape

Claims (9)

A toner cartridge that is detachably attached to the developing device and supplies a developer to the developing device,
A developer accommodating portion for accommodating a bag filling portion filled with the developer;
A toner cartridge, comprising: a stirring unit that stirs the developer that has flowed out of the bag filling unit. The toner cartridge according to claim 1, wherein the bag filling unit is disposed immediately above the stirring unit. The toner cartridge according to claim 1, wherein a part of the bag filling portion is bonded to a frame member that accommodates the stirring portion. 4. The toner cartridge according to claim 1, wherein the agitating unit agitates the developer that has flowed out of the bag filling unit in accordance with the mounting operation with respect to the developing device. 5. The toner cartridge according to claim 1, wherein the frame member is connected to an operation lever member extending to the outside. The toner cartridge according to claim 5, wherein a perforation is formed in the bag filling portion, the perforation is torn as the operation lever member is driven, and the developer flows out. The toner cartridge according to any one of claims 1 to 6, wherein the bag filling portion is a bag body formed of a flexible material. The toner cartridge according to claim 7, wherein a thickness of the flexible material is in a range of 0.01 mm to 0.05 mm. A developing device to which the toner cartridge according to any one of claims 1 to 8 is detachable;
A transfer device for transferring the developer image developed in the developing device to a predetermined recording medium;
An image forming apparatus comprising: a fixing device that fixes the developer image on the recording medium.