JPH0381963U - - Google Patents
Info
- Publication number
- JPH0381963U JPH0381963U JP14392589U JP14392589U JPH0381963U JP H0381963 U JPH0381963 U JP H0381963U JP 14392589 U JP14392589 U JP 14392589U JP 14392589 U JP14392589 U JP 14392589U JP H0381963 U JPH0381963 U JP H0381963U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- agitator
- opening
- toner cartridge
- cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000032258 transport Effects 0.000 claims 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案のトナー補給装置の実施例の構
成を示す断面図、第２図、第３図は第１図と共に
その作用を説明する断面図、第４図及び第５図は
それぞれ第１図の−線及び−線による平
面図又は断面図であつて、第５図はトナーカート
リツジをセツトし終える前の状況を示し、第６図
は従来の二成分現像装置の一例の構成を示す断面
図である。
１……ケース、２……トナーカートリツジ、３
……トナー、４……アジテータ、５……トナー補
給ローラ、９……揺動部材、１０……センサ、１
２……揺動アーム、１３……カム。
FIG. 1 is a sectional view showing the configuration of an embodiment of the toner replenishing device of the present invention, FIGS. 2 and 3 are sectional views together with FIG. FIG. 5 is a plan view or a sectional view taken along lines - and - in FIG. 1, and FIG. 5 shows the situation before finishing setting the toner cartridge, and FIG. FIG. 1... Case, 2... Toner cartridge, 3
... Toner, 4 ... Agitator, 5 ... Toner supply roller, 9 ... Swinging member, 10 ... Sensor, 1
2... Swinging arm, 13... Cam.
Claims (1)
に収容されたトナーカートリツジ内のトナーを、
該トナーカートリツジ内に回転可能に設けられた
アジテータにより撹拌すると共にトナーカートリ
ツジ開口に向かつて搬送し、該開口を経てその下
位に設けられたトナー補給ローラにより現像タン
ク内に補給するトナー補給装置において、 前記トナーカートリツジ開口と前記トナー補給
ローラの間の空間に、該空間内のトナーの表面の
移動に追随して作動するトナー量検知部材を有す
る揺動部材、 前記空間内のトナー表面が所定のレベルより低
下した場合に、前記揺動部材により作動され、そ
の検知信号によりトナー補給ローラを作動させる
ためのセンサ、 前記アジテータと一体的に回転するカム、 前記カムに係合するカムフオロアを有しアジテ
ータの回転に連動して所定の角度を揺動し、前記
揺動部材を揺動させる揺動アームを有することを
特徴とするトナー補給装置。[Scope of Utility Model Registration Claim] Toner in a toner cartridge housed in a case integrated with the developing tank of a two-component developing device,
A toner replenishing device that agitates the toner with an agitator rotatably installed in the toner cartridge, transports the toner toward an opening of the toner cartridge, and replenishes the toner into the developing tank through the opening with a toner replenishing roller installed below the toner cartridge. A swinging member having a toner amount detection member in a space between the toner cartridge opening and the toner supply roller that operates in accordance with the movement of the toner surface in the space; A sensor that is activated by the swinging member and activates a toner replenishment roller based on the detection signal when the temperature drops below a predetermined level, a cam that rotates integrally with the agitator, and a cam follower that engages with the cam. A toner replenishing device comprising a swinging arm that swings through a predetermined angle in conjunction with the rotation of an agitator to swing the swinging member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14392589U JPH0381963U (en) | 1989-12-13 | 1989-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14392589U JPH0381963U (en) | 1989-12-13 | 1989-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0381963U true JPH0381963U (en) | 1991-08-21 |
Family
ID=31690675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14392589U Pending JPH0381963U (en) | 1989-12-13 | 1989-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0381963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010066769A (en) * | 2008-09-11 | 2010-03-25 | Ricoh Co Ltd | Toner-end detecting device, developer residual quantity detecting device, developing device, process unit and image forming apparatus |
| JP2010217885A (en) * | 2009-03-13 | 2010-09-30 | Ricoh Co Ltd | Remaining developer amount detection device, developing unit, process unit, and image forming apparatus |
-
1989
- 1989-12-13 JP JP14392589U patent/JPH0381963U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010066769A (en) * | 2008-09-11 | 2010-03-25 | Ricoh Co Ltd | Toner-end detecting device, developer residual quantity detecting device, developing device, process unit and image forming apparatus |
| JP2010217885A (en) * | 2009-03-13 | 2010-09-30 | Ricoh Co Ltd | Remaining developer amount detection device, developing unit, process unit, and image forming apparatus |
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