CN1160874A - Toner container, process cartridge and electrophotographic image forming unit - Google Patents

Abstract

This specification clarifies a toner container for accommodating developing toner therein, and reveals a latent image formed on an electrophotographic photosensitive drum by a developing device, which is supported by a developing frame, and the toner container contains into the electrophotographic imaging device. The toner container with the toner rack includes: a toner holding part, in which toner is held; a toner supply port, for supplying the toner held in the toner holding part to a developing device; The powder sealing curtain is used to releasably seal the powder supply port; the winding column is arranged in the space formed by the inner developing frame and the connected toner frame, and is used for winding the toner sealing curtain ; and a driving force applying device for applying a driving force to the winding post.

Description

Toner container, process cartridge and electrophotographic image forming unit

The present invention relates to a toner container, a process cartridge and an electrophotographic image forming apparatus.

Here, the toner container is a container for containing therein a toner for developing a latent image formed on an electrophotographic image forming device.

Also, the term "electrophotographic imaging device" includes, for example, an electrophotographic copier, an electrophotographic printer (such as a LEO printer or a laser printer), an electrophotographic facsimile, and an electrophotographic word processor .

Also, the process cartridge refers to a cartridge that is integrally made of a charger, a developing device or a cleaner and an electrophotographic photosensitive device, and is detachably installed relative to the main body of an imaging device, and at least the charger, One of the imaging device and the cleaning device, and a cartridge that is integrally made of an electrophotographic photosensitive device and is detachably installed relative to the main body of the imaging device, also refers to at least the imaging device and an electrophotography The photosensitive device is integrally formed in a cartridge detachably mounted relative to the main body of the imaging device.

Heretofore, in an imaging device using an electrophotographic imaging process, a process cartridge system has been used, whereby an electrophotographic photosensitive device and a processor acting thereon are integrally formed in a unit that can be moved relative to the main body of the imaging device. Removably mounted cartridge. According to this process cartridge system, maintenance of the device can be performed by the user himself without resorting to a technician, and thus operability can be significantly improved. Therefore, this process cartridge system is widely used in various image forming apparatuses.

On the other hand, in this process cartridge system, there is known a technique according to which a toner in a developer storage container (hereinafter referred to as "toner container") is supplied for image development. The supply port on one side of the device is sealed by the sealing member through heat welding when it is not in use, and in its use, the return section of the sealing part is pulled along the return direction to release the sealing part of the seal.

Also, the operating force when the process cartridge is installed in the imaging device; or an automatic opening mechanism in which the return section of the above-mentioned seal is transmitted via power such as a motor-driven gear when the process cartridge is installed in the imaging device The device is wound on the winding shaft or similar components to automatically open the toner seal, all in the published Japanese patent application No. 1-193872, the Japanese utility model published application No. 62-110954, and the Japanese patent published application No. 62 -127876 etc. are described.

Any of the above prior art examples are valid in that the process cartridge has the ability to lend toner.

The present invention is a further improvement aimed at the above-mentioned various prior art examples.

An object of the present invention is to provide a toner container, a process cartridge and an electrophotographic image forming apparatus all of which are improved in operability.

Another object of the present invention is to provide a toner container, a process cartridge and an electrophotographic image forming apparatus in which a toner sealing curtain for sealing a toner supply port can be automatically wound.

Still another object of the present invention is to provide a toner container, a process cartridge and an electrophotographic image forming apparatus in which the toner supply port can be unsealed.

Still another object of the present invention is to provide a toner container, a process cartridge, and an electrophotographic image forming apparatus having a winding column for winding a toner sealing curtain for sealing the toner supply port, and for A driving force receiving device that receives a driving force to drive the winding column.

It is a further object of the present invention to provide a toner container, a process cartridge, and an electrophotographic image forming apparatus in which toner can be prevented from leaking out of the developing device or the process cartridge after the toner sealing curtain is unsealed , Secondly, the operability of the toner seal curtain unsealing operation is good.

A still further object of the present invention is to provide a toner container, a process cartridge and an electrophotographic imaging device in which the winding process of the sealing member can be carried out in an airtight sealed space, and when the sealing member is released After sealing, the developer does not leak out of the device, and in order to wind up the seal, only the force required to unseal the seal can be considered, so that the seal can be wound reliably.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side sectional view of a developing device showing a first embodiment of the present invention and a process cartridge constituting this embodiment.

Fig. 2 is a sectional view taken along line II-II in Fig. 1 .

Fig. 3 is a plan view showing the coupling state of the winding cylinder and the toner sealing curtain.

Fig. 4 is a front view of the supply port portion in Fig. 1 (unsealed state of the toner sealing curtain).

Fig. 5 is a front view of the supply port portion in Fig. 1 (the unsealed state of the toner sealing curtain).

Fig. 6 is a sectional view showing a method of welding the developer container and the developing device together.

Fig. 7 is a sectional view showing the state welded by the welding method shown in Fig. 6 .

Fig. 8 is a cross-sectional view showing a method in which the developer container and the developing device are adhered and fixed to each other.

Figure 9 is a sectional view of an image forming apparatus in which a process cartridge is housed.

Fig. 10 is a sectional view of a developing device showing a second embodiment of the present invention.

Fig. 11 is a sectional view showing the connected state of the pinion gear and the winding column in Fig. 10 .

Fig. 12 is a front view of a powder supply opening showing a third embodiment of the present invention (its sealed state).

Fig. 13 is a front view of the powder supply port, showing the third embodiment (the state that the powder supply port is unsealed).

Fig. 14 is a front view of a powder supply opening showing a fourth embodiment of the present invention (its sealed state).

Fig. 15 is a front view of the powder supply port, showing the fourth embodiment (the state that the powder supply port is being unsealed).

Fig. 16 is a cross-sectional view of the winding post shown in Fig. 14 .

Fig. 1 is a side sectional view of a process cartridge having a developing device, Fig. 2 is a sectional view taken along line II-II in Fig. 1, and Fig. 9 is a sectional view of various important parts of an electrophotographic imaging device, in which There is the process cartridge of Fig. 1 for forming an image on a recording medium using electrophotography.

The photosensitive drum 21 is pivotally mounted on the frame member 30 so as to rotate along the direction of the arrow a, and a charger 22, a short-focus optical device 58, a developing device 1, a transfer printing device 1, and a charger 22 are arranged around the photosensitive drum in accordance with the rotating direction of the drum. Feeder 54 and cleaning device 31. In this embodiment, the photosensitive drum 21, the charger 22, the developing device 1 and the cleaning device 31 are entirely supported by the member 30 to constitute the process cartridge 100. The process cartridge 100 of this embodiment is supported and guided by guide rails 51a and 51b fixed to the main body of the image forming apparatus 200 (hereinafter referred to as "device main body"), and is adapted to be attached and detached relative to the apparatus main body 200. In this embodiment, the process cartridge 100 is inserted from one side in the drawing plane of FIG.

The image forming apparatus in this embodiment uniformly charges the surface of the photosensitive drum 21 by means of the charger 22 . Then, the original on an original support table 56 above the upper part of the apparatus main body reciprocating (in the direction of arrow b) is irradiated with an electric lamp 57 . The reflected light emitted by the original is applied to the photosensitive drum 21 through the short-focus optical device 58 to form a latent image on the photosensitive drum. The formed latent image is developed by the developing device 1, and the toner image is transferred to the transfer material by a transfer charger 54. This transfer material (such as recording paper or OHP paper) is placed on the paper supply tray 59 by the operator's hand, and is conveyed to the transfer station by the respective conveying rollers 53 . After the transfer is finished, the transfer material is separated from the photosensitive drum, and sent to the empty image device 55 through the conveying path, so that the toner image on it is fixed and then discharged to the paper discharge tray 60 . Reference numeral 56a denotes an original cover which covers the original placed on the original supporting table 56. As shown in FIG. Also, the photosensitive drum 21 is cleaned from any cleaning blade of the toner cleaning device 31a present thereon after the toner image has been transferred therefrom to the transfer material.

On the other hand, the developing device 1 in the process cartridge 100 has its developing roller 10 rotatably supported on the casing 3 constituting the housing of the developing device via rollers 10a, 10b and bearings 34, 35, and The gap between the developing roller 10 and the photosensitive drum 21 is ensured to have a predetermined size by a buffer roller (not shown).

The drive gear 20 is mounted on one end of the developing roller 10, and meshes with a drum gear 21a mounted on one end of the photosensitive drum 21 to rotate synchronously with the rotation of the photosensitive drum 21. The blade 8 is sandwiched between the ridge 3b of the case 3 and a metal plate 9, and touches the developing roller 10 with a predetermined pressure to form a toner layer on the surface of the developing roller 10 with an appropriate thickness. A sealing tape 15 is provided between the developing roller 10 and the opposite ends of the tank case 3 to prevent toner from leaking from the ends of the tank case 3 . The developing roller 10 supplies toner to the photosensitive drum 21 as it rotates.

The toner container 2 storing the toner 7 is filled with toner in such a state that the toner supply opening 2f formed on the developing device side is sealed by the toner seal 5 comprising a flexible film. When the toner seal 5 is wound and the opening 2f is not sealed, the toner stored in the toner container 2 is supplied to the developing device 1 through this opening 2f.

The toner seal member 5, whose side near the end of the toner supply opening 2f (drive gear 20 side) as the front side of the seal member, is welded by heating the welding portions 5a, 5b, 5c and 5d until it One side of the other end is shown in Figure 4. Secondly, it returns toward its one end side, and the return position on the other end side is used as the peeling starting position, and this end is welded to the surface of the cylindrical winding column 4 by means of a heating welding position 5e, As shown in Figure 3.

The winding column 4 is housed in the winding column containing case 2h, and this part is made into a continuous whole with one end side wall part 2e of the toner container 2, and the two opposite end shaft sections of the winding column 4 4a and 4b are supported on bearing portions made on the wall of the winding cylinder housing 2h. Here, the member constituting this winding cylinder accommodating case 2h is formed integrally with the toner container 2, but may alternatively be formed separately from the latter.

The shaft portion 4a of the winding column 4 passes through the wall portion of the winding column housing case 2h forming a bearing portion. Forming the input member 6, the handle 6 is mounted on the portion 4a1 protruding outwardly through this wall. As shown in FIG. 5, when the operator holds the grip portion 6a of the handle 6 and turns it in the direction of the arrow, the toner sealing curtain can be wound onto the winding column 4. As shown in FIG.

On the other hand, on the wall portion of the toner container 2 in which the toner supply port 2f is formed, the ridge-like connection stands 2a, 2b, 2c, and 2d are made along the entire periphery of the wall portion in such a way that the toner supply port Both 2f and the winding column accommodation case 2h are located therein. These connection platforms 2a to 2d can be connected to the casing 3 of the imaging device 1 by heating welding or hot-melt bonding. Thus, the joint between the toner container 2 and the case 3 of the developing device 1 is kept in a hermetically sealed state, and the toner does not leak from the joint.

In addition, the winding post 4 and the toner sealing curtain 5 are all arranged inside the connecting strips 2a to 2d, thus, only the unwinding force needs to be considered when the toner sealing curtain 5 is unsealed, for example, the radius R1 of the winding post 4 With the operating radius R2 of the handle 6 such that R1<R2 is formed, the unwinding force for the toner seal curtain 5 can thus be made small.

The unsealing of the toner seal curtain 5 will be described here. As shown in FIGS. 4 and 5, the operator turns the handle 6 in the direction of the arrow C, the winding force is applied to the return portion 5f1 of the toner seal curtain 5, and the heat-welded portion is peeled off. When the return portion 5f1 is thereafter moved in the direction of the arrow d along with the winding of the toner sealing curtain, the heat welded portions 5a and 5c are peeled off, and finally, the top portion 5d1 of the sealing curtain, that is, the peeling terminal end portion, is also peeled off. , the toner sealing curtain is wound onto the winding column 4. If a color spot or the like is attached to this peeling terminal end portion 5d1, then this spot can be confirmed by the window 2g, which is a transparent window plate arranged on a part of the wall of the winding column housing case 2h, thus , the operator can identify the finished winding state with the naked eye. A one-way clutch, such as a one-way spring or a one-way ratchet device, can be arranged between the handle 6 and the winding column 4, so that the rotation direction of the handle can be defined in a winding direction.

A method of joining the toner container 2 and the case 3 of the developing device together by heat welding will now be described with reference to FIGS. 6 and 7. FIG. The ridge-shaped connecting portions 2a to 2d and the wall portion 3a of the case 3 are sandwiched between them by welding jigs 41 and 42 at a predetermined pressure in such a manner that the connecting portions 2a to 2d and the wall portion 3a are brought into close contact with each other, and at Vibration is applied thereto while maintaining this state, thereby achieving heat welding. According to this heat welding method, the greased materials of the parts are fused together, so that the parts can be firmly fitted together without any gap being formed in the seam. The bonding of the toner container 2 with the developing device 1 and the case 3 can also be performed by injecting a hot-melt adhesive 11 between the ridge connecting portions 2a to 2d and the wall of the case 3, and melting the adhesive 11. A kind of adhesive 11, and be realized.

Next, a second embodiment of the present invention is shown in FIGS. 10 and 11 .

In the above-mentioned first embodiment, it is designed that before the unused process cartridge 100 is inserted into the apparatus main body 200 shown in FIG. Wind up on the winding column 4 and go. However, the second embodiment which will now be described is designed so that the toner seal curtain 5 is automatically wound up to the Going above the winding post 4, the connection structure between the toner container 2 and the developing device 1 is similar to that of the first embodiment.

In Figs. 10 and 11, the gear 16 is rotatably mounted on the shaft 4b of the winding column 4, and the end surface of the shaft 4b is heat-sealed for non-slip. The gear 1b is composed of a gear body 16a and a pipe section 16b mounted on the rotating shaft 4b, and the rotating shaft 4b and the pipe section 16b of the gear 16 can be connected together by a one-way spring 17 . When the gear 16 rotates in the direction of the arrow e, that is, the winding direction of the toner sealing curtain 5, the one-way spring 17 is tightened, and the winding column 4 is integrated with the pipe section 16b of the rotation 4b and the gear 16, and the winding direction along the toner The winding direction of the powder sealing curtain 5 is rotated. In addition, when the gear 16 is in the opposite direction, the one-way spring 17 is not tensioned, so the gear 16 is only idling relative to the rotating shaft 4b, and the toner sealing curtain 5 is caused by the reverse rotation of the winding column 4 from winding The phenomenon of slippage on the post 4 will never take place.

On the other hand, in the device main body 200, a toothed guide rod 52 such as a rack is provided to mesh with the gear 16 corresponding to the direction in which the process cartridge 100 is inserted. Insert and turn in the direction of arrow e, thereby winding the toner seal curtain 5 automatically. The meshing length between the tooth-lifting guide rod 52 and the gear 16 is a length sufficient to wrap the toner sealing curtain 5 . In addition, when the process cartridge 100 is taken out from the apparatus main body 200, the gear 16 rotates in the direction opposite to the direction of the arrow, but since the one-way spring 17 is not tensioned as described above, once the wound up toner seals The phenomenon that curtain 5 slips off from winding post 4 will never take place.

In this embodiment, the one-way spring 17 is used as a one-way mechanism for the gear 16 to rotate in one direction, but a one-way rotation transmission mechanism such as a ratchet device may be used instead.

A third embodiment of the present invention is shown in FIGS. 12 and 13 .

This embodiment is to use the stored energy of the spring to form a winding force to automatically support the winding of the toner sealing curtain 5 onto the winding post 4 . In the winding column accommodation case 2h, the winding driving rod 12 is juxtaposed with the winding column 4, and the winding driving rod 12 has its rotating shaft sections 12a and 12b, supported by the bearing portion of the winding column accommodation case 2h. , so it can be rotated. A winding gear 18 is provided integrally with the winding column 4 , and the gear portion 2 c of the winding drive lever 12 is engaged with this winding gear 18 . Therefore, when the winding driving lever 12 is rotated in the direction of the arrow g, the winding column 4 is rotated in the direction of the arrow h, and the toner seal curtain is moved in the direction of the arrow f to be wound up. If the winding spring 13 shaped as a coil spring is on the shaft sections 12a and 12b of the winding drive lever 12, and one end of the winding spring 13 is engaged with the gear portion 12c, the other end 13b of the winding spring 13 is engaged with the toner container. 2, the coil spring is twisted in the direction opposite to the direction of the arrow i, so that the coil spring is charged with the rotational spring force.

The state in which the winding driving rod 12 is maintained is that it is filled with a spring force sufficient to wind the toner sealing curtain 5, and the realization of the maintenance of this state is to be arranged in the winding column accommodation case 2h, The stopper 14 meshes with the gear portion 12c of the winding drive lever 12. The blocking member 14 can move in the axial direction of the winding drive rod 12, and its end portion penetrates outwardly through the wall of the winding column housing case 2h. When this protruding end is pushed into the winding cylinder housing, its engagement with the gear portion 12c of the drive lever 12 is released. The elastic force of the winding spring 13 then acts in the direction of the arrow i, and the gear portion 12c rotates in the direction of the arrow g, so that the winding column 4 winds the toner seal curtain 5 in the direction of the arrow h, and Uncover the toner sealing curtain 5 in the direction of the arrow f while continuously moving, so that the toner supply port 2f is unsealed.

In this embodiment, the action of the push-in preventing member 14 is realized by the process cartridge 100 abutting against the release lever 50 provided in the apparatus main body 200 when the process cartridge is inserted into the apparatus main body. Also, the connecting structure of the toner container 2 to the case 3 of the developing device 1 is similar to that in the first embodiment.

Figures 14, 15 and 16 show a fourth embodiment of the present invention, which is similar in basic construction to the third embodiment shown in Figures 12 and 13, but some differences between this embodiment and the third embodiment will be It will be described in detail later.

In this embodiment, the winding column 14 is shown in Figure 16, and the winding lever 23 is rotatably mounted on the rotating shaft 4a through various one-way rotation transmission devices. The spring 19, and the winding gear 18 is arranged on the rotating shaft 4b. The rotation transmission device constituted by the one-way spring 17 can transmit the rotation of the winding lever 23 to the winding column 4, and the winding direction of the toner seal curtain along it corresponds to the direction in which the winding lever 23 rotates along the arrow j, so that Winding of the toner seal curtain 5 can be achieved.

At this time, the direction provided by the one-way rotation transmission device constituted by the one-way spring 19 is that in this direction, the rotation of the winding column 4 along the winding direction is not transmitted to the winding gear 18. When the stop lever 14 is meshed with the gear part of the winding drive lever 12 and the winding drive lever 12 is in its stationary state, the rotation of the winding column 4 is transferred to the winding gear 18, which will hinder the rotation of the winding column 4 , but the winding rotation itself of the winding column 4 is ensured because of the one-way rotation transfer device made of the one-way spring 19 .

When conversely, the gear part 12c rotates along the direction of arrow R due to the driving force of the winding drive lever 12, the winding gear 18 rotates along the winding direction of arrow l, and the one-way spring 19 turns along the cutting head l The rotation of the winding gear in the direction is transmitted to the winding column 4. However, the one-way spring 17 does not transmit the rotation of the winding post 4 to the winding lever 23, so that the winding of the toner seal curtain 5 can be realized depending on the rotational force of the winding driving rod 12.

As mentioned above, since the winding lever 23 is rotated in the direction of the arrow j, the peeling start portion of the toner seal curtain can be reliably peeled off, and thus, the preventing member 14 is released subsequently, and the toner seal curtain is even only wound by winding. The rotational force of the drive rod 12 can be fully realized.

In this embodiment, a protruding portion 51c for abutting against the winding lever 23 so as to rotate the winding lever 23 in the arrow direction j when the process cartridge 100 is inserted into the apparatus main body 200 is provided in the apparatus main body 200. . This protruding portion 51c is provided where the stopper 14 can impart sufficient rotation to the winding cylinder 4 to peel off the peeling initiation portion of the toner seal curtain 5 before it is engaged with the release lever 50 .

Then, when starting to insert the process cartridge 100 into the apparatus main body, the winding lever 23 first abuts against the protruding portion 51c, and relies on the special movement of the winding lever 23 along the arrow j direction to make the winding post 4 move through the one-way spring 17. Turn and start peeling off the toner seal curtain 5 over its entire width. At this time, the rotational force relative to the take-up lever 23 is derived from the insertion force by which the process cartridge 100 is inserted into the apparatus main body 200, so that the peeling raised portion of the toner seal curtain 5 can be reliably peeled off. Then, the stopper 14 is engaged with the release member 50, and the toner seal curtain 5 whose peeling start portion has been peeled is automatically wound onto the winding cylinder 4 by the driving force of the winding drive lever 12.

In each of the above-mentioned embodiments, with regard to the toner in the toner container, a device is exemplified in which when the toner sealing curtain is peeled off, the entire sealing curtain including its surrounding toner supply port 2f Heating the soldered part, all were peeled off. However, the present invention is not limited thereto, but a device 1 can be broken along its length direction by a soft first film (hereinafter referred to as "sealing film") to cover the parts formed between the toner container and the developing device. The opening between the sealing film - and the thin strip of second film (hereinafter referred to as "tear strip") - can be torn along the length of the sealing film to form the toner supply port. As a base material of such a sealing film, composite films such as polyester aluminum and uniaxially oriented polypropylene can be used.

In addition, the welding width (D) of the peeling start portion of the toner seal curtain 5 is the same as the width of the toner seal curtain 5, as shown in FIG. 12, but alternatively, a device in which the toner seal The direction along which the curtain is welded in the initial part is inclined, and the force at the initial stage can be concentrated on the end of the toner-sealed curtain to easily achieve peeling (a simple peeling device).

As the process cartridge, an example is shown in which the photosensitive drum 21, the charger 22, the developing device 1 and the cleaning device 31 are all integrated with each other, but in another way, the process cartridge may be such a one that The charging device, the developing device or the cleaning device are used as the processing device, and the electronic photosensitive device is integrally made into a cartridge detachably installed in the main body of the imaging device; or such a kind, that is, at least one of the charging device, A developing device and a cleaning device, as a processing device, and an electrophotographic photosensitive device are integrally made into a cartridge detachably housed in the main body of the imaging device; or one in which at least the developing device is used as a processing device The device, and the electrophotographic photosensitive device are integrally made into a cartridge detachably contained in the main body of the imaging device. Here, the term "image forming apparatus" includes, for example, an electrophotographic copier, an electrophotographic printer (such as a laser beam printer or an LED printer), an electrophotographic facsimile, and the like.

As previously mentioned, the toner container 2-contains toner therein for development by means of a developing device (developing device 1) so as to reveal a latent image formed on an electrophotographic photosensitive device (photosensitive drum 21), image The device is supported by the developing frame (case 3), and the toner container is installed in the electrophotographic imaging device 200, with a toner cartridge (toner container 2), with a toner container containing toner The powder supply port 2f is used to supply the toner 7 contained in the toner container to the developing device; the toner sealing curtain 5 is used to seal the powder supply port in a detachable seal; a winding column 4 , for winding the toner sealing curtain, the winding column 4 is located in the space (winding column accommodation shell 2h) formed by the camera frame, the toner cartridge is connected with this space; and the driving application device (handle 6, gear 16 and one-way spring 17) for applying driving force to the winding post.

The space in which the winding column 4 is provided (winding column housing case 2h) is arranged in the developing device (developing device 1) supported by the developing frame (box case 3) in the longitudinal direction of the developing roller 10. side at one end. In addition, this space is composed of a groove (winding column housing case 2h) made integral with the toner cartridge (toner container 2) and a developing frame (case case 3) arranged in an opposing relationship with the groove. Partially formed, a gap G for passing the toner sealing curtain 5 is formed between the toner cartridge and the developing frame, and the toner sealing curtain 5 wound by the winding column 4 passes through this gap g.

Next, the winding post 4 has a cylindrical shape and is arranged in a direction transverse to the longitudinal direction of the developing roller 10 of the developing device. In addition, a part of the toner container forming the space is made of a transparent member (window portion 2g) through which the winding post 4 provided in the space can be seen from the outside.

Further, a driving force applying device is provided outside this space, and applies a driving force to the winding cylinder 4 so that the winding cylinder 4 winds the toner sealing curtain 5 . The driving force applying device has a rotating member (handle 6) which is turned by hand. The rotating part has a handle 6 whose operating radius is larger than the radius of the winding cylinder 4 .

Furthermore, according to another embodiment, the driving force applying means has a gear 16 which engages with a toothed guide rail 52 arranged in the image forming apparatus 200 when the toner container is installed in the electrophotographic image forming apparatus 200, and because of Rotation occurs relative to the movement of the guide rail 52, and the winding column 4 is caused to rotate by this rotational force.

Furthermore, according to another embodiment, the driving force applying means has an energy storage member (coil spring 13) in which the driving force can be accumulated, and the energy storage member can be used when the toner container is installed in the electrophotographic imaging device 200. Gather strength. The toner sealing curtain is wound up on the winding post 4 by the power accumulated in the accumulator.

According to the above-mentioned embodiments, the sealing curtain is wound up on the winding column in the airtight sealed space after the sealing curtain is released, so that the developer does not leak out of the device, and secondly, the winding column has no excessive load for winding. Winding the sealing curtain, therefore, the sealing curtain can be wound reliably.

Furthermore, according to the above-described embodiments, it is easy to form an airtight sealing space, the developer container and the developing device can be firmly coupled, and even if the device is subjected to vibration during its transportation, there is no problem in the airtight sealing property. There is a problem. Second, coupling of the developer container and the developing device can be easily achieved. Secondly, the winding cylinder can be rotated from outside the device.

Thirdly, the winding post can be rotated by hand to unseal the sealing curtain. Furthermore, the release of the airtight curtain can be achieved with very light manual force. Also, the winding column can be automatically rotated by an additional driving device or the like to realize the unsealing of the sealing curtain. Furthermore, for example, the unsealing of the sealing curtain can be done automatically simply by moving the imaging device. Furthermore, the automatic unsealing of the sealing curtain can be realized by means of a mechanism in the airtight sealing space. In addition, the forcibly rotatable member is rotated to obtain a strong peeling force at an early stage of unsealing of the sealing curtain, after which automatic unsealing of the sealing curtain is achieved by the accumulated force of the accumulated energy conservation means.

Claims (46)

1. toner container, be used for holding therein a kind of by display in order to show the ink powder that is formed on the sub-image on the electronic photography sensor devices, described display is by the video picture rack support, described ink powder capacitance device is contained among the electronic photographic imaging device, described toner container is characterized in that, comprising:

-ink powder frame has ink powder and holds part, holds ink powder therein;

-powder supply port is used for supplying with described display being contained in the described ink powder containing part ink powder among dividing;

-ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing;

-coiling post is arranged on by among described video picture frame and the formed space of described ink powder frame that is linked together, and described ink powder sealing curtain is used to reel; And

-driving force bringing device is used for applying driving force to described coiling post.

2. one kind according to the described toner container of claim 1, and wherein, described coiling post is arranged on wherein spatial configuration by the end place on the described display developing roll length direction of described video picture rack support.

3. one kind according to the described toner container of claim 2, wherein said space be by the groove of making one with described ink powder frame with dispose to such an extent that become the video picture rack section of opposed relationship to constitute with described groove, and be used to make that the described ink powder sealing curtain of being reeled by described coiling post is worn and gap that cross is formed between described ink powder frame and the described video picture frame.

4. one kind according to claim 1 or 3 described toner containers, and wherein said coiling post has cylindrical shape, are arranged on the direction with the developing roll length direction traversed by of described display.

5. one kind according to the described toner container of claim 4, and the described ink powder frame of a part that wherein forms described space is made by Transparent Parts, sees through it and can see the described coiling post that is arranged among the described space from the outside.

6. one kind according to claim 1 or 3 described toner containers, and wherein said driving force bringing device is arranged on outside the described space, and applies driving force to described coiling post, the described ink powder sealing curtain so that described coiling post is reeled.

7. one kind according to the described toner container of claim 6, and wherein said driving force bringing device has and is used to the rotatable part that makes it to rotate.

8. one kind according to the described toner container of claim 7, and wherein said rotatable part has handle, and its operative radius is greater than the radius of described coiling post.

9. one kind according to the described toner container of claim 6, wherein said driving force bringing device has a gear, be suitable for when described toner container is loaded on described electronic photographic imaging device be configured in described imaging device among band tooth guide rail be meshed, and, thereby described coiling post is rotated because of it rotates with respect to moving of described guide rail.

10. one kind according to the described toner container of claim 6, wherein said driving force bringing device has the accumulation of energy part, can put aside driving force therein, described accumulation of energy part can be gathered strength in self when described toner container is packed described electronic photographic imaging device into, and described ink powder sealing curtain goes above making it to be wound up into described coiling post by described strength.

11. one kind according to the described toner container of claim 1, wherein said video picture frame and described ink powder frame rely on welding or bonding agent to be bonded together.

12. one kind according to the described toner container of claim 1, wherein said ink powder sealing curtain is an easily stripped, the peelable residence of uncapping is stated all parts of powder supply port and is removed the sealing of powder supply port, or tearing mode, peelablely cover the part of described powder supply port and remove the sealing of described powder supply port.

13. a cartridge processing is removably installed in the main body of electronic photographic imaging device, described cartridge processing comprises:

A. an electronic photography sensor devices;

B. a display by the video picture rack support, is used to show the sub-image that is formed on above the described electronic photography photosensitive device; And

C. a toner container is used for becoming to hold therein by the ink powder of described display in order to developing, and described toner container has an ink powder frame, and it comprises: ink powder holds part, is used for holding therein ink powder; Powder supply port is used for supplying with described display being contained in the described ink powder containing part ink powder among dividing; The ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing; The coiling post is provided with by among described video picture frame and the formed space of described ink powder frame that is linked together, and described ink powder sealing curtain is used to reel; And the driving force bringing device, be used to apply driving force in described coiling post.

14. one kind according to the described toner container of claim 11, wherein, described coiling post is arranged on wherein spatial configuration by the end on the developing roll length direction of the described display of described video picture rack support.

15. one kind according to the described toner container of claim 14, wherein said space be by the groove of making one with described ink powder frame with dispose to such an extent that become the video picture rack section of opposed relationship to constitute with described groove, and be used to make that the described ink powder sealing curtain of being reeled by described coiling post is worn and gap that cross is formed between described ink powder frame and the described video picture frame.

16. one kind according to claim 13 or 15 described toner containers, wherein said coiling post has cylindrical shape, is arranged on the direction with the developing roll length direction traversed by of described display.

17. one kind according to the described toner container of claim 16, the described ink powder frame of a part that wherein forms described space is made by Transparent Parts, sees through it and can see the described coiling post that is arranged among the described space from the outside.

18. one kind according to claim 13 or 15 described toner containers, wherein said driving force bringing device is arranged on outside the described space, and applies driving force to described coiling post, the described ink powder sealing curtain so that described coiling post is reeled.

19. one kind according to the described toner container of claim 18, wherein said driving force bringing device has and is used to the rotatable part that makes it to rotate.

20. one kind according to the described toner container of claim 19, wherein said rotatable part has handle, and its operative radius is greater than the radius of described coiling post.

21. one kind according to the described toner container of claim 18, wherein said driving force bringing device has a gear, be suitable for when described toner container is loaded on described electronic photographic imaging device and the band tooth guide rail engagement that is configured among the described imaging device, and, rotate so as to making described coiling post because of it rotates with respect to moving of described guide rail.

22. one kind according to the described original washing powder container of claim 18, wherein said driving force bringing device has an accumulation of energy part, can put aside driving force therein, described accumulation of energy part can be gathered strength in self when described toner container is packed described electronic photographic imaging device into, and described ink powder sealing curtain goes above making it to be wound up into described coiling post by described strength.

23. one kind according to the described toner container of claim 18, wherein said video picture frame and described ink powder frame rely on welding or bonding agent to be bonded together.

24. one kind according to the described toner container of claim 13, wherein said ink powder sealing curtain is an easily stripped, the peelable residence of uncapping is stated all parts of powder supply port and is removed the sealing of described powder supply port, or tearing mode, peelablely cover the part of described powder supply port and remove the sealing of described powder supply port.

25. one kind according to the described cartridge processing of claim 13, also comprises a charging device, is used to described electronic photography sensor devices charging.

26. one kind according to right 13 or 25 described cartridge processings, comprise that also one cleans device, are used to remove any ink powder that is retained on the described electronic photography sensor devices.

27. an electronic photography imaging device be used for forming image on a kind of recording medium, and cartridge processing removably is contained on this medium, device comprises:

A. erecting device is used for removably installing cartridge processing, and cartridge processing then comprises: the electronic photography photosensitive device; Display by the video picture rack support, is used to show the sub-image that is formed on above the described electronic photography photosensitive device; And toner container, being used for holding therein by the ink powder of described display in order to video picture, described toner container has an ink powder frame, and it comprises: ink powder holds part, is used for holding therein ink powder; Powder supply port is used for supplying with described display being contained in the described ink powder containing part ink powder among dividing; The ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing; The coiling post is located at by among described video picture frame and the formed space of described ink powder frame that is linked together, and described ink powder sealing curtain is used to reel; And the driving force bringing device, be used to apply driving force in described coiling post, and

B. conveyer is used to transmit described medium.

28. toner container, be used for holding therein a kind of by developing roll to show the ink powder that is formed on the sub-image on the electronic photography light-sensitive roller, described developing roll is supported by the video picture frame rotationally, the described toner container electronic photographic imaging device of packing into, and described toner container comprises:

-ink powder frame has ink powder and holds part and hold ink powder therein;

-powder supply port is used for supplying with described developing roll being contained in the described ink powder containing part ink powder among dividing;

-ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing;

-coiling post, be arranged on by among described video picture frame and the formed space of described ink powder frame that is linked together, described ink powder sealing curtain is used to reel, described coiling curtain has cylindrical shape, and be arranged on the direction that is transverse to described developing roll length direction the end place of described spatial configuration on the developing roll length direction that is supported by described video picture frame; And

-driving force bringing device is used for applying rotating force to described coiling post.

29. one kind according to the described toner container of claim 28, wherein said space be by the groove of making one with described video picture frame with dispose to such an extent that become the video picture rack section of opposed relationship to constitute with described groove, and be used to make that the described ink powder sealing curtain of being reeled by described coiling post is worn and gap that cross is formed between described ink powder frame and the described video picture frame.

30. one kind according to the described toner container of claim 28, the described ink powder frame of a part that wherein constitutes described space is made by Transparent Parts, sees through it and can see the described coiling post that is arranged among the described space from the outside.

31. one kind according to the described toner container of claim 28, wherein said driving force bringing device has the rotatable part that makes it to rotate with hand.

32. one kind according to right 31 described toner containers, wherein said rotatable part has handle, and its operative radius is greater than the radius of described coiling post.

33. one kind according to the described toner container of claim 28, wherein said driving force bringing device has a gear, be suitable for when described toner container is loaded on described electronic photographic imaging device be configured in described imaging device among band tooth guide rail be meshed, and, thereby described coiling post is rotated because of it rotates with respect to moving of described guide rail.

34. one kind according to right 28 described toner containers, wherein said driving force bringing device has an accumulation of energy part, can put aside driving force therein, described accumulation of energy part can be gathered strength in self when described toner container is packed described electronic photographic imaging device into, and described ink powder sealing curtain goes above making it to be wound up into described coiling post by described strength.

35. one kind according to right 28 described ink powder devices, wherein said video picture frame and described ink powder frame rely on welding or bonding agent to lump together.

36. one kind according to the described toner container of claim 28, the ink powder sealing curtain is an easily stripped altogether, the peelable residence of uncapping is stated all parts of powder supply port and is removed the sealing of described powder supply port, or tearing mode, peelablely cover the part of described powder supply port and remove the sealing of described powder supply port.

37. a cartridge processing is removably installed in the main body of electronic photographic imaging device, described cartridge processing comprises:

A. an electronic photography photosensitive drums;

B. a developing roller by the video picture rack support, is used to show the latent image that is formed on above the described electronic photography photosensitive drums; And

C. a video picture charging device is used to described electronic photography photosensitive drum charging;

D. one clean device, be used to remove any ink powder that is retained on the described electronic photography photosensitive drums.

E. a toner container is used for holding therein that a kind of described toner container has the ink powder frame by the ink powder of described developing roll in order to video picture, and it comprises: ink powder puts part, is used for holding therein ink powder; Powder supply port is used for supplying with described developing roll being contained in the described ink powder containing part ink powder among dividing;

The ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing; The coiling post is arranged on by described video picture frame and the described ink powder frame that is linked together among the space that forms; The described ink powder sealing curtain that is used to reel, described coiling post has cylindrical shape, and is arranged on the direction with described developing roll length direction traversed by the end side surface of described spatial configuration on the developing roll length direction that is supported by described video picture frame; And the driving force bringing device, be arranged on outside the described space/be used for applying rotating force to described coiling post.

38. one kind according to the described toner container of claim 37, wherein said space be by the groove of making one with described video picture frame with dispose to such an extent that become the video picture rack section of opposed relationship to constitute with described groove, and be used to make that the described ink powder sealing curtain of being reeled by described coiling post is worn and gap that cross has formed between described ink powder frame and the described video picture frame.

39. one kind according to the described toner container of claim 37, the described ink powder frame of a part that wherein constitutes described space is made by Transparent Parts, sees through it and can see the described coiling post that is arranged among the described space from the outside.

40. one kind according to right 37 described toner containers, wherein said driving force bringing device has the rotatable part that makes it to rotate with hand.

41. one kind according to the described toner container of claim 37, wherein said rotatable part has handle, and its operative radius is greater than the radius of described coiling post.

42. one kind according to the described toner container of claim 37, wherein said driving force bringing device has a gear, be suitable for when described toner container is loaded on described electronic photographic imaging device be configured in described imaging device among band tooth guide rail be meshed, and, thereby described coiling post is rotated because of it rotates with respect to moving of described guide rail.

43. one kind according to the described toner container of claim 37, wherein said driving force bringing device has an accumulation of energy part, can put aside driving force therein, described accumulation of energy part can be gathered strength in self when described toner container is packed described electronic photographic imaging device into, and on described ink powder sealing curtain makes it to be wound up into above the described coiling post by described strength.

44. one kind according to right 37 described toner containers, wherein said video picture frame and described ink powder frame rely on welding or bonding agent to be bonded together.

45. one kind according to the described toner container of claim 37, wherein said ink powder sealing curtain is an easily stripped, the peelable residence of uncapping is stated all parts of powder supply port and is removed the sealing of described powder supply port, or tearing mode, peelablely cover the part of described powder supply port and remove the sealing of described powder supply port.

46. an electronic photographic imaging device be used for forming image on a kind of recording medium, and cartridge processing removably is contained on this medium, device comprises:

A. erecting device is used for removably installing cartridge processing, and cartridge processing then comprises: the electronic photography photosensitive drums; Developing roll by the video picture rack support, is used to show the sub-image that is formed on above the described electronic photography photosensitive drums; Charging device is used to described electronic photography photosensitive drum charging; Clean device; Be used to remove any ink powder of leaving on the described electronic photography photosensitive drums; And toner container, be used for holding therein a kind of by the ink powder of described developing roll in order to video picture, described toner container has an ink powder frame, and it comprises: ink powder holds part, is used for holding ink powder altogether; Powder supply port is used for supplying with described video picture roller being contained in the described ink powder containing part ink powder among dividing; The ink powder sealing curtain, but be used for the described powder supply port of depressurization ground sealing; The coiling post, be arranged on by among described developing frame and the formed space of described ink powder frame that is linked together, described ink powder sealing curtain is used to reel, described coiling post has cylindrical shape, and be placed on the direction with described developing roller length direction traversed by, described spatial configuration is by the end side surface on the developing stream wheel length direction of described developing rack support; And the driving force bringing device, be arranged on outside the space, be used for applying rotating force to described coiling post; And

B. a delivery roller is used to transmit described recording medium.

Images