JPH0167660U

JPH0167660U -

Info

Publication number: JPH0167660U
Application number: JP1987162779U
Authority: JP
Priority date: 1987-10-23
Filing date: 1987-10-23
Publication date: 1989-05-01

Description

[Brief explanation of drawings]

第１図ａ〜ｃはこの考案の一実施例としてのト
ナー供給装置の要部を示すとともに、その動作を
示す背面図、第２図は上記トナー供給装置の筒状
カートリツジの斜視図、第３図は上記トナー供給
装置を備えた画像形成装置を示す縦断面図、第４
図は第３図の―線断面図、第５図は他の実施
例のトナー供給装置のカートリツジの斜視図、第
６図は前記トナー供給装置の動作を説明する概略
図、第７図はさらに他の実施例のトナー供給装置
のカートリツジの斜視図、第８図は前記トナー供
給装置の動作を説明する概略図、第９図はさらに
他の実施例のトナー供給装置のカートリツジの斜
視図、第１０図は前記トナー供給装置の動作を説
明する概略図である。２……現像部本体、３……ホツパー、４……筒
状カートリツジ、５……振動手段、６……マイク
ロスイツチ、３７，４８……突起、４２……トナ
ー吐出用スリツト、５３……振動子、７３……湾
曲突部。 1A to 1C are rear views showing the main parts of a toner supply device as an embodiment of this invention and its operation; FIG. 2 is a perspective view of the cylindrical cartridge of the toner supply device; FIG. The figure is a vertical cross-sectional view showing an image forming apparatus equipped with the above-mentioned toner supply device.
The figure is a sectional view taken along the line -- in FIG. 3, FIG. 5 is a perspective view of a cartridge of a toner supply device according to another embodiment, FIG. 6 is a schematic diagram illustrating the operation of the toner supply device, and FIG. 7 is a further FIG. 8 is a perspective view of a cartridge of a toner supply device according to another embodiment; FIG. 8 is a schematic diagram for explaining the operation of the toner supply device; FIG. 9 is a perspective view of a cartridge of a toner supply device of another embodiment; FIG. 10 is a schematic diagram illustrating the operation of the toner supply device. 2... Developing unit main body, 3... Hopper, 4... Cylindrical cartridge, 5... Vibration means, 6... Micro switch, 37, 48... Protrusion, 42... Toner discharge slit, 53... Vibration Child, 73...Curved protrusion.

Claims

[Claims for Utility Model Registration] 1. A cylindrical cartridge having a toner discharge slit is installed in a hopper, and the cartridge is rotated to drop the toner from the toner discharge slit to supply the toner to the developing unit main body. In the toner supply device, an elastically biased vibrator is attached to either the hopper or the cartridge,
On the other hand, while the toner discharge slit formed in the cartridge is rotated at least from an upper position to a lower position, a plurality of protrusions or recesses are provided to engage with the vibrator, and the cartridge is rotated at a predetermined position. A toner supply device comprising a detection means for detecting rotation to a rotation position. 2. The detection means is formed by a micro switch, and detects that the cylindrical cartridge has been rotated to a predetermined position by counting the movement that occurs when the cartridge passes through the protrusion. The toner supply device according to item 1. 3. The above-mentioned utility model registration request wherein the detection means is constituted by a microswitch and a protrusion formed on a cylindrical cartridge, which activates the microswitch when the cylindrical cartridge is rotated to a predetermined position. The toner supply device according to scope 1.