JPH0343661U

JPH0343661U -

Info

Publication number: JPH0343661U
Application number: JP10456489U
Authority: JP
Priority date: 1989-09-06
Filing date: 1989-09-06
Publication date: 1991-04-24

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第６図は本考案の第一の実施例を
示すもので、第１図は斜視図、第２図はトナーカ
ートリツジの下部を拡大して示す縦断側面図、第
３図は電子写真装置の原理を示す側面図、第４図
は電子回路を示すブロツク図、第５図はトナー補
給量とステツプモータの駆動パルスとの関係を示
すグラフ、第６図はトナー補給量の制御動作を示
すフローチヤート、第７図は本考案の第二の実施
例を示す斜視図、第８図はそのトナーカートリツ
ジの下部を拡大して示す縦断側面図、第９図は本
考案の第三の実施例を示す斜視図、第１０図はそ
のトナーカートリツジの下部を拡大して示す縦断
側面図である。４……現像器、１０……トナーカートリツジ、
１１……補給ローラ、１２……補給口、１３，１
４……遮蔽物、２１……検出器、２３……モータ
、２４……駆動手段、２５……操作部、３５，３
６……遮蔽物、３７……補給口、３８……窓、４
０……遮蔽物。 1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is an enlarged vertical sectional side view showing the lower part of the toner cartridge, and FIG. FIG. 4 is a block diagram showing the electronic circuit; FIG. 5 is a graph showing the relationship between the amount of toner replenishment and the drive pulse of the step motor; and FIG. 6 is the control of the amount of toner replenishment. 7 is a perspective view showing the second embodiment of the present invention, FIG. 8 is a vertical sectional side view showing an enlarged lower part of the toner cartridge, and FIG. 9 is a perspective view showing the second embodiment of the present invention. Embodiment 3 is a perspective view showing the third embodiment, and FIG. 10 is an enlarged longitudinal sectional side view showing the lower part of the toner cartridge. 4...Developer, 10...Toner cartridge,
11... Supply roller, 12... Supply port, 13,1
4... Shielding object, 21... Detector, 23... Motor, 24... Drive means, 25... Operating unit, 35, 3
6...shield, 37...supply port, 38...window, 4
0...Occupation object.

Claims

【実用新案登録請求の範囲】１現像器に向けて開口する補給口を有するトナ
ーカートリツジと、前記補給口の内方に回転自在
に設けられた補給ローラと、往復動自在のモータ
に連結されて前記補給口に沿つて摺動自在に保持
された遮蔽物と、この遮蔽物の位置を検出する検
出器と、前記現像器に対するトナー補給量を設定
する操作部と、この操作部に設定されたデータに
応じて前記モータの動作方向と動作量とを変更す
る駆動手段とよりなることを特徴とするトナー補
給量制御装置。２補給口の中心を間にして二つの遮蔽物を対称
方向に摺動自在に設けたことを特徴とする請求項
１記載のトナー補給量制御装置。３トナーカートリツジに複数の補給口を所定の
間隔を開けて形成し、前記補給口のそれぞれに対
向する複数の窓が開口された遮蔽板を前記補給口
の配列方向に沿つて摺動自在に設けたことを特徴
とする請求項１記載のトナー補給量制御装置。[Claims for Utility Model Registration] 1. A toner cartridge having a replenishment port opening toward a developing device, a replenishment roller rotatably provided inside the replenishment port, and a toner cartridge connected to a motor capable of reciprocating motion. a shield slidably held along the replenishment port; a detector for detecting the position of the shield; an operation section for setting an amount of toner to be supplied to the developing device; 1. A toner replenishment amount control device comprising: a drive means for changing an operating direction and an operating amount of the motor in accordance with data obtained from the toner replenishment amount. 2. The toner replenishment amount control device according to claim 1, wherein two shields are provided slidably in symmetrical directions with the center of the replenishment port in between. 3. A plurality of replenishment ports are formed in the toner cartridge at predetermined intervals, and a shielding plate having a plurality of windows facing each of the replenishment ports is slidably arranged in the direction in which the replenishment ports are arranged. 2. The toner replenishment amount control device according to claim 1, further comprising: a toner replenishment amount control device.