JPS63217385A - Toner cartridge - Google Patents

Abstract

PURPOSE:To prevent toner from scattering out of a printing device by composing a toner cartridge of an internal and an external cylinder which can move relatively. CONSTITUTION:The toner cartridge 20 is so assembled that the internal cylinder 23 and external cylinder 21 are at closure positions, namely, that an internal cylinder opening part 24 and external cylinder opening part 22 are isolated and the toner contained in the internal cylinder 23 is unable to leak out. In this state, the toner cartridge is supplied to a consumer. Then the consumer sets this cartridge 20 on the developing device of a printing device, fixes the external cylinder 21 or internal cylinder 23 by some method and rotates the internal cylinder 23 or external cylinder 21 which is not fixed to an open position so that the two opening parts 22 and 24 meet each other. Consequently, the toner is replenished from a toner cartridge 20 to a developing device.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a toner cartridge, and in particular, toner cartridges that use an electrophotographic method that prevents toner from spilling or contaminating the surrounding area during toner replenishment work. This invention relates to toner cartridges for printing devices.

[Prior Art] There are various types of toner cartridges, one of which is a toner cartridge 30 as shown in FIG. The toner cartridge 30 includes a cylinder 31 having an opening 33 in the longitudinal direction for storing toner, and a seal 32 for sealing the opening 33.

[Problems to be Solved] The above-mentioned toner cartridge 30 is manufactured by setting the toner cartridge 30 in a developing device, aligning the opening 33 with the toner supply port of the developing device, and then peeling off the seal 32 and inserting the toner into the developing device. The method was to supply supplies to the Therefore, in the toner cartridge 30 shown in FIG. 3, toner adheres to the back surface of the peeled sealing seal 32, and this has the disadvantage that the toner comes into contact with the user's hands, the device, etc., and contaminates the toner. Also,
Since the opening 33 of the toner cartridge 30 remains open after replenishment, when the toner cartridge 30 is removed from the developing device, the toner remaining in the toner cartridge 30 falls onto the floor and makes a mess.

[Means for Solving the Problems] The present invention that solves the above-mentioned problems includes: an inner cylinder for accommodating the toner having an inner cylinder opening; and an outer cylinder having an opening and accommodating the inner cylinder so as to be able to move relative to each other. a toner cartridge comprising an outer cylinder, wherein the inner cylinder and the outer cylinder have openings aligned with each other, so that the toner stored in the inner cylinder can be discharged to the outside, and an open position; The openings are spaced apart so that the toner stored in the supplementary inner cylinder assumes at least two positions relative to the closed position from which it cannot leak to the outside.

In a preferred embodiment of the present invention, a seal is provided on the periphery of one or both of the inner cylinder opening and the outer cylinder opening to completely prevent toner spillage.

Typically, the inner tube and the outer tube have a cylindrical shape, and by rotating either one by a predetermined angle, the open position or the closed position is taken.

[Example code] Next, the present invention will be explained with reference to the drawings.

FIG. 1 is an external view of a toner cartridge 20 according to the present invention, and FIG. 2 is a sectional view thereof. tona cartridge 2
0 is composed of an inner cylinder 23 having an inner cylinder opening 24 for storing toner, and an outer cylinder 21 having an outer cylinder opening 22 and rotatably housing the inner cylinder 23. In the illustrated embodiment, a seal 25 is provided only at the periphery of the outer cylinder opening 22 to completely prevent toner from spilling. The inner cylinder 23 and the outer cylinder 21 have an inner cylinder opening 24 and an outer cylinder opening 22 separated from each other as shown in FIG. The closed position, in which no leakage is possible, and the open position, in which the inner cylinder opening 24 and the outer cylinder opening 22 are aligned, and the toner stored in the inner cylinder 23 can be discharged to the outside (see FIG. Outer cylinder 2
1 can be left as is, and two relative positions can be taken with respect to the position where the inner cylinder 23 is rotated by 90° clockwise.

Next, a method of using the toner cartridge according to the present invention will be explained.

In the toner cartridge 20 according to the present invention, the inner cylinder 23 and the outer cylinder 21 are in a closed position, that is, the inner cylinder opening 24 and the outer cylinder opening 22 are separated from each other. The toner stored in the toner 23 is assembled in such a state that it cannot leak outside, and then supplied to the consumer. Then, the consumer sets the toner cartridge 20 of the present invention in the developing device of the printing device, fixes the outer cylinder 21 or the inner cylinder 23 by some method, and fixes the inner cylinder 23 or the outer cylinder 21 that is not fixed. Rotate to the open position, ie the two openings 22.24 are aligned. As a result, toner is replenished from the toner cartridge 20 to the developing device.

Further, when removing the toner cartridge 20 from the printing apparatus, the rotated cylinder is returned to its original position and taken out from the closed position.

[Effects of the Invention] As explained above, the toner cartridge according to the present invention has the following advantages:
It takes the open position only when set in the developing device of the printing device.
Since the toner is in the closed position before being put into the printing device and when being taken out from the printing device, there is no problem such as the toner scattering outside the printing device or falling on the floor and making a mess. Furthermore, since it does not use a seal like conventional toner cartridges, there is no need to worry about staining your hands or the printing device.

[Brief explanation of the drawing]

FIG. 1 is an external view of an embodiment of a toner cartridge according to the present invention, FIG. 2 is a sectional view of the toner cartridge of FIG. 1, and FIG. 3 is an external view of a conventional toner cartridge. 20: Toner cartridge 21: Outer tube 22: Outer tube opening 23: Inner tube 24: Inner tube opening 25: Seal 30: Conventional toner cartridge 31: Cylinder 32: Sealing seal 33: Opening

Claims (3)

[Claims] (1) A toner cartridge comprising an inner cylinder having an inner cylinder opening for storing toner, and an outer cylinder having an outer cylinder opening and housing the inner cylinder so as to be movable relative to each other, The cylinder and the outer cylinder have two positions: an open position in which the respective openings are aligned and the toner stored in the inner cylinder can be released to the outside, and an open position in which the respective openings are separated and the toner is stored in the inner cylinder. A toner cartridge that takes at least two positions relative to a closed position and a closed position that prevents toner from leaking out. (2) The toner cartridge according to claim 1, wherein a seal is provided at the peripheral edge of the inner cylinder opening to completely prevent toner from spilling. Tona cartridge. (3) In the toner cartridge according to claim 1 or 2, a seal is provided at the peripheral edge of the outer cylinder opening to completely prevent toner from spilling. Features Tona cartridge.