JPH02196260A - Toner cartridge for electrophotographic device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application] The present invention relates to a toner car for an electrophotographic apparatus!・Regarding Ridge.

[Prior Art] When an electrophotographic apparatus is used for a long time, the amount of toner in the developing device decreases, so it is necessary to replenish an appropriate amount of toner.

Therefore, as shown in FIG. 5, the conventional developing device includes a developing device main body 10 that is detachably attached to the main body of an electrophotographic apparatus (not shown), and a toner that is detachably attached to the developing device main body 10 and replenishes toner. It is composed of a cartridge 20.

The developer main body 10 is provided with a developer tank 12 that stores toner, a developer roller 13 and a blade 14 that make the toner in the developer tank 12 adhere to a photoreceptor (not shown) on which an electrostatic latent image is formed. In addition, the upper surface side of the developing device main body 10 into which the toner cartridge 20 is installed is provided with the above-mentioned surface to prevent toner from leaking from the joint surface between the end of the main body 10 and the end of the toner cartridge 20. A sealing member 1 made of sponge or the like is installed along the periphery of the developer tank 12.
5A, 15B, 15C, and 15D are attached, and four positioning notches 1 are provided on the outer peripheral wall.
6 is formed and 11 is left.

On the other hand, the toner cartridge 20, as shown in FIG.
A 1-toner supply container 30 and a 1-toner supply container 30 in which a toner filling section 3 opening toward the developer tank 12 of the developer main body 10 is formed;
The toner sealing film 40 is removably attached around the opening of the toner supply container 30.The toner supply container 30 is filled with toner as shown in FIGS. 6 and 7. A rib 32 for attaching a film is formed along the open edge of the portion 31, and a toner charging portion 33 for charging toner into the toner filling portion 31 is formed. Furthermore, four positioning bosses 36 are formed at both end portions of the toner supply container 30 to engage with each positioning notch 16 of the developing device main body 10.

The toner seal film 40 is coated with an adhesive on one surface side as shown in FIG.
They are glued together by applying heat and pressing down. Then, the toner seal film 40 is folded back in the peeling direction X, and its negative end is drawn out from the film drawing end 35 side of the toner supply container 30 to the outside of the container 30.

Therefore, the toner filling portion 31 of the toner supply container 30 can be closed by the toner sealing film 40 and opened by peeling off the film 40 from the rib 32.

Here, as shown in FIG. 8, the width of the toner seal film 40 is set so that both seal members 15A and 15B are easy to peel and do not scrape off the seal members 1.5A and 15B of the current TTI main body 10 when peeling. It is narrower than the width of the

To replenish toner to the developing device main body 10, it is assembled into the toner cartridge main body 10 filled with toner. For this purpose, seal members 1.5A, 15B. The toner cartridge 20 is installed via 15C1 and 5D, and each positioning boss 36 is engaged with each positioning notch 16.

After the toner cartridge 20 is assembled into the developing device main body 10 in this manner, the toner seal film 40 is pulled out in the peeling direction . Then, the adhesive surface 41 of the toner seal film 40 is peeled off from the rib 32, the toner filling portion 31 is opened, and the toner in the filling portion 31 is replenished into the developer tank 12 of the developer main body 10.

[Problem to be Solved by the Invention 1] In the conventional structure, when peeling off the toner seal film 40, it is difficult to grasp the positional relationship between the toner seal film 40 and the toner replenishment container 30. It is difficult to pull out 2 and 2, and there are many cases where 2 and 2 are pulled out in a direction crossing the peeling direction.

In this way, the toner seal film 4o is peeled off in one direction
When the toner seal film 40 is pulled out in a more deviated direction, both ends 42, 42 of the toner seal film 40 are exposed to the seal members 15A, 1. 5 B
The seal members 15A, 15B may be peeled off while being rubbed, and the rubbed portions of the seal members 15A, 15B may be scraped off.

In this way, the seal members 15A, 15 that have been scraped off
The fragments of B fall into the developing tank 12 of the developing device main body 1o, and eventually get stuck between the developing roller 13 and the blade 14, causing printing defects. To remove the toner,
Repairs take time, and the use of the electrophotographic device is restricted during that time.

SUMMARY OF THE INVENTION An object of the present invention is to prevent the film from scraping off the sealing member of the developing device body when the toner seal film is peeled off from the toner supply container and the toner in the container is replenished into the developing device body. An electrophotographic device capable of
The purpose of the company is to provide a nurturing cartridge.

Means for Solving the Problem 1 Therefore, in the present invention, the opening edge of the toner filling portion that is detachably attached to the developing device main body via a sealing member and that opens toward the developing tank of the developing device main body is provided with a sealing member. It consists of a toner replenishment container having a rib formed along the toner replenishment container, and a toner seal film that is releasably attached to the rib of the toner replenishment container and is folded back in the peeling direction. The toner supply container is pulled out in the peeling direction from the film drawer end side and peeled off from the ribs, thereby opening the toner filling section that was closed by the film and transferring the toner in the filling section to the developing tank. In the toner cartridge of an electrophotographic apparatus configured to be replenished in a toner cartridge, the toner replenishing container is provided with a position regulating means for regulating the positional variation in the width direction of the l/ner seal film at the film pull-out end of the toner supply container. Features.

[Function] According to the present invention, when the toner seal film is peeled off from the toner supply container and the toner in the container is supplied to the developing device main body,
The position regulating means allows the toner seal film to be pulled out to the outside while regulating the positional variation in the width direction of the toner seal film.

Therefore, the toner seal film is always peeled off with a gap left between it and the seal member of the developing unit main body, and it is possible to prevent the film from scraping off the seal member.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

In the explanation of this figure, the same components as those of FIGS. 5 to 9 will be designated by the same reference numerals H, and the explanation thereof will be omitted or simplified.

In this embodiment, as shown in FIG.
Toner seal film 40 is attached to the film drawer end 35 of
A position regulating kite 50.50 is formed to protrude in the direction X as a position regulating means for regulating the positional variation in the width direction.

Here, the opening of the position regulating guide 50.50 in the peeling direction or in the direction perpendicular to the peeling direction is formed to correspond to the width of the toner seal film 40.

Next, the effect will be explained.

By pulling out the toner seal film 40 of the toner cartridge 20 assembled into the developing device main body 10 from the film drawer end 35 (l! It is opened, and the toner in the filling section 31 is replenished into the developer tank 12 of the developer main body 10.

At this time, since the toner seal film 40 is regulated from positional variation in the width direction by each position regulation guide 50, the toner seal film 40 is regulated from positional variation in the width direction by the position regulation guides 50. The seal members 15A and 15B are not scraped off by rubbing because they are always peeled off with a gap left between them.

Therefore, since the film drawer end 35 of the l/toner supply container 30 is provided with a position regulating guide 50 for regulating the positional fluctuation of the toner seal film 40 in the width direction,
When the toner seal film 40 is peeled off from the toner replenishing container 30 and l/toner is replenished into the developing device main body 10, the positional movement of the l/toner seal film 40 in the width direction is regulated by the position regulating guide 50, and the film is 40 can be prevented from rubbing and scraping off the seal members 15A, 15B of the developing device main body 10.

Furthermore, since the position regulating guide 50 is provided in a part of the toner supply container 30 as described above, the toner cartridge 20 can be easily constructed without increasing its size or complexity. Therefore, the toner cartridge 2
Even if the 0 is attached to an electrophotographic device, it will not be bulky.

In the above embodiment, the position regulating guide 50 was used as the position regulating means, but the point is that it is sufficient to regulate the positional fluctuation of the toner seal film 40 in the width direction.For example, as the position regulating means, as shown in FIG. Film drawer end 3
5, an elongated hole 51 formed to extend in the width direction of the toner seal film 40 may be used. (The explanation is omitted.)

[Effect of the Invention 1] According to the present invention, the toner seal film is attached to the toner supply container because the toner seal film is provided with a position regulating means for regulating the widthwise positional fluctuation of the toner seal film at the film drawer side end of the toner supply container. When removing the toner from the container and replenishing the developer body with the toner in the container, it is possible to prevent the film from scraping off the sealing member of the developer body.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is an enlarged view showing the vicinity of the film drawer end of the toner supply container, and FIG. A plan view showing another embodiment of the invention and FIGS. 5 to 9 are views showing a conventional developing device, FIG. 5 is an exploded perspective view, and FIG. 7 is a bottom view, FIG. 8 is a sectional view when cut in the direction perpendicular to the direction in which the toner seal film is peeled off, and FIG. 9 is a film drawer of the toner supply container. FIG. 3 is an enlarged view showing the vicinity of the end portion. DESCRIPTION OF SYMBOLS 10...Developer main body, 20...Toner cartridge 30...Toner supply container, 31...Toner filling part, 35...Film drawer end part, 40...Toner seal film, 50...・・Position regulation kite (position regulation means), 51・
...Elongated hole (position; curvature regulating means), 15A=15D...Sealing member.

Claims (1)

[Claims] (1) a toner supply container that is detachably attached to the developing device main body via a sealing member and has a rib formed along the opening edge of a toner filling portion that opens toward the developer tank of the developing device main body; The toner seal film is peelably attached to the rib of the toner supply container and folded back in the peeling direction, and the toner seal film is pulled out in the peeling direction from the film pulling end side of the toner supply container. In the toner cartridge of an electrophotographic apparatus, the toner cartridge of an electrophotographic apparatus is configured to open a toner filling section that has been closed by the film by peeling it off from the rib, and replenish the toner in the filling section to the developer tank. 1. A toner cartridge for an electrophotographic apparatus, characterized in that a position regulating means for regulating the positional fluctuation of the toner seal film in the width direction is provided at a film withdrawal end of the container.