JPH05710B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to an improvement in a toner cartridge used in a developing device of a laser printer.

(b) Background of the technology Quiet, non-impact printers are used as printing devices to record information output from electronic computers. Among these, laser printers can print output information at high speed, and the print is clear and easy to read. It has many features such as

The printing mechanism of such a laser printer will be explained with reference to FIG.

As shown in the figure, a recording medium of a recording drum 1 having a coating of photoconductive material such as selenium (Se) formed around the recording medium is charged to a high voltage, and a laser beam source 2 is applied to a predetermined location of the recording medium. Irradiate it with light to give it a negative charge. On the other hand, developer 3
A developer 4 consisting of a toner made of polycarbonate resin and a carrier made of iron powder is filled inside the recording medium, and the toner of the developer is deposited on a magnetic roller 5 and transported. The printed image is developed by attaching it to the charged area. Then, the toner adhering to the recording medium of the recording drum 1 is transferred to the plain paper 6 rotating opposite the recording drum 1 by applying a negative high voltage.

By the way, among the developers, Chiaria is not consumed, but toner is consumed, so it is necessary to replenish it after using it for a predetermined period of time. Therefore, a cylindrical toner cartridge 7 containing toner is inserted into a cartridge insertion opening 8 of the developing device 3, and the toner in the toner cartridge 7 is supplied into the developing device 3.

(c) Prior Art and Problems Regarding the conventional structure of such a toner cartridge, the perspective view of FIG. 2 and FIG.
This will be explained with reference to FIG. 3, which shows a cross section of the end of the toner cartridge taken along a line.

As shown in FIGS. 2 and 3, a conventional toner cartridge 11 has a cylindrical closed structure made of paper and is filled with toner.
A recess 13 is formed in one end 12 of the toner cartridge 11, and a recess 13 is provided above the recess 13 for rotating the toner cartridge 11 by hand and supplying the toner in the toner cartridge 11 into the developing device 3. A handle 14 is provided, and a seal 15 is affixed to the side surface of the toner cartridge 11 with an adhesive, and this seal can be easily removed by hand. . To describe the case where such a conventional toner cartridge 11 is installed in the developing device 3, first, with the seal 15 of the toner cartridge 11 peeled off, insert the handle of the toner cartridge 11 from the insertion opening 8 of the developing device 3. 14
Grasp it with your hand and insert it. Next, the toner cartridge 11 is rotated 180 degrees in the direction of arrow C, and the toner filled inside is transferred to the developing device 3. Then, the toner cartridge 11 is further rotated 180 degrees in the direction of arrow D, and this state is maintained until a predetermined amount of the toner transferred to the developing device 3 is used. If the used toner cartridge 11 is taken out of the developing device 3 as it is, the toner adhering to the periphery of the toner cartridge 11 will be scattered around and may adhere to the apparatus or the human body, which is not desirable.

Therefore, conventionally, when replacing a used toner cartridge with a new toner cartridge after using a predetermined amount of toner, a toner cartridge storage tool 21 as shown in FIG. 4 is used to remove the used toner cartridge. It housed. This storage device consists of a storage bag 23 made of vinyl chloride fitted with a plastic ring 22 into which the circular end 12 of the toner cartridge 11 can be inserted. was inserted into the ring 22 of the storage tool 21 and the handle 14 of the toner cartridge 11 was pulled forward to store the toner cartridge 11 in the storage bag 23.

By the way, in order to form the storage tool 21, a device for attaching the vinyl chloride storage bag 23 to the ring 22 is required, which has the disadvantage that this device is large-scale and the installation work is complicated and time-consuming. Ta.

(d) Invention and Object The present invention is intended to eliminate the above-mentioned drawbacks, and is intended to eliminate the above-mentioned drawbacks by providing a storage bag for storing the toner cartridge in the gripping portion of the toner cartridge in advance. To eliminate the need for large-scale equipment and complicated work for forming a storage tool. To provide a new toner cartridge, in which the toner cartridge after use is stored in a storage bag provided inside the toner cartridge to prevent toner adhering to the periphery of the toner cartridge from scattering around the toner cartridge. The purpose is to

(e) Structure of the Invention To achieve the above object, the toner cartridge of the present invention stores a developer toner inside,
A toner cartridge consisting of a container with a handle at one end and installed inside a developing device,
A recess is provided around the handle at one end of the container, and a retractable toner cartridge storage bag for accommodating the container during replacement after use is provided in the recess in a contracted state. It is something.

(f) Embodiment of the Invention An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 5 is a perspective view of the toner cartridge of the present invention, and FIGS. 6, 7, 8, and 9 show the toner cartridge of the present invention when replacing it with a new one after use. It is a perspective view showing a working state.

As shown in FIG. 5, the toner cartridge 31 of the present invention is made of paper and has a cylindrical sealed container structure, and the inside of the sealed container 32 is filled with a predetermined amount of toner. Furthermore, a plastic seal 33 is attached to the side surface of the cylindrical container 32 using an adhesive.
is attached and can be removed if necessary.

Also, one circular end 34 of the container has a recess 3.
5, and a handle 36 for inserting and removing the container into the developing device is attached. A retractable storage bag 37 for a toner cartridge made of vinyl chloride is provided in a contracted state in a recess 35 between the handle 36 and the circular edge of the circular end 34. After peeling off the seal 33 of the toner cartridge 31, grasp the handle 36 and insert the toner cartridge into the toner cartridge insertion opening 8 of the developing device 3 shown in FIG. Next, the toner cartridge 31 is rotated 180 degrees in the direction of arrow E to supply the toner therein into the developing device, and then further rotated 180 degrees in the direction of arrow F.

After that, when a predetermined amount of toner is used and a new toner cartridge is to be replaced, the toner cartridge storage bag 37 is pulled out from the opening where it is stored, and the toner cartridge is inserted, as shown in FIG. After attaching it to the opening 8, it is fixed with a metal clip 38. Next, as shown in FIG. 7, grasp the handle 36 from above the toner cartridge storage bag 37, rotate it 180 degrees, and pull out the toner cartridge 31 in the direction of arrow G. Thereafter, as shown in FIG. 8, the clip 38 is removed from the toner cartridge storage bag 37. Next, as shown in FIG. 9, the open end of the toner cartridge storage bag 37 is tied up using a metal clip 39, and the used toner cartridge 31 is stored in the toner cartridge storage bag 37.

In this way, when you pull out a used toner cartridge from the developing device using the attached toner cartridge storage bag, you can quickly remove the toner that has adhered around the toner cartridge without scattering it. Can be processed.

(g) Effects of the Invention As described above, according to the toner cartridge of the present invention, there is no need to prepare a storage tool for the toner cartridge separately from the toner cartridge, making it easy to handle and making it easier to manufacture the storage tool. It is economical and does not require large-scale equipment or complicated operations.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the printing mechanism of a laser printer, Fig. 2 is a perspective view showing the structure of a conventional toner cartridge, and Fig. 3 is a cross section of the end structure of the toner cartridge along line A-B. FIG. 4 is a perspective view showing a storage device for the toner cartridge;
FIG. 5 is a perspective view of the toner cartridge of the present invention;
FIGS. 6, 7, 8, and 9 are perspective views showing working conditions when replacing the toner cartridge of the present invention with a new toner cartridge after use. In the figure, 1 is a recording drum, 2 is a laser light source, 3 is a developing device, 4 is a developer, 5 is a magnetic roller, 6 is plain paper, 7, 11, 31 are toner cartridges, and 8 is a toner cartridge. Toritsuji insertion port, 1
2, 34 are the ends, 13, 35 are the recesses, 14, 36
1 is a handle, 15 and 33 are seals, 21 is a toner cartridge storage device, 22 is a ring, 23, 3
7 is a storage bag, 32 is a sealed container, 38, 39 are clips, C, D, E, F are arrows indicating the direction of rotation of the toner cartridge, and G is an arrow indicating the direction of movement of the toner cartridge.

Claims (1)

[Claims] 1. A toner cartridge that is installed inside a developing device and consists of a container that contains developer toner and has a handle at one end, and the area around the handle at one end of the container 1. A toner cartridge comprising: a recessed portion; and a retractable toner cartridge storage bag for accommodating the container when replaced after use is provided in the recessed portion in a contracted state.