JPS631323Y2 - - Google Patents
Info
- Publication number
- JPS631323Y2 JPS631323Y2 JP1978051598U JP5159878U JPS631323Y2 JP S631323 Y2 JPS631323 Y2 JP S631323Y2 JP 1978051598 U JP1978051598 U JP 1978051598U JP 5159878 U JP5159878 U JP 5159878U JP S631323 Y2 JPS631323 Y2 JP S631323Y2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- storage chamber
- replenishing
- box
- toner storage
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
【考案の詳細な説明】
本考案は、たとえば電子複写機に採用されるト
ナー補給装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a toner replenishing device employed in, for example, an electronic copying machine.
通常、乾式電子複写機においては複写動作に同
期して現像装置の現像剤収納容器内に粉末トナー
を補給するトナー補給装置を設け、トナー不足に
よる画像不良を防止するようになつている。 Normally, a dry electronic copying machine is provided with a toner replenishing device that replenishes powdered toner into a developer storage container of a developing device in synchronization with the copying operation to prevent image defects due to insufficient toner.
しかしながら、従来におけるトナー補給装置は
第１図に示すようにトナーボツクスａの側板ｂ，
ｃの角度αを小さくし、トナーの自重によりトナ
ー補給ローラｄ上に落し込む構成となつている。
したがつて、トナーを多く収容し、かつ確実に補
給し得るようにするには、トナーボツクスの高さ
を高くしなければならないが、被取付機体の寸法
的制約から高くすることができず、トナーボツク
ス内のトナーの補給を頻繁に行なわなければなら
ないといつた問題がある。 However, in the conventional toner replenishing device, as shown in FIG.
The angle α of c is made small so that the toner falls onto the toner replenishing roller d due to its own weight.
Therefore, in order to accommodate a large amount of toner and ensure reliable replenishment, the height of the toner box must be increased, but due to the dimensional constraints of the machine to which it is attached, it is not possible to increase the height. There is a problem in that the toner in the toner box must be replenished frequently.
本考案は、上記事情にもとづきなされたもの
で、その目的とするところは、トナーボツクスの
高さを高くすることなくトナー収容量を多くで
き、しかも確実にトナー補給ローラ上に運ぶこと
ができ、長期に亘つて安定したトナー補給が行な
えるようにしたトナー補給装置を提供しようとす
るものである。 The present invention was developed based on the above circumstances, and its purpose is to increase the amount of toner that can be accommodated without increasing the height of the toner box, and to ensure that the toner can be transported onto the toner supply roller. It is an object of the present invention to provide a toner replenishing device that can perform stable toner replenishment over a long period of time.
以下、本考案の一実施例を第２図にもとづいて
説明する。図中１は感光体２の感光面にトナー３
およびキヤリヤからなる現像剤４を摺接してトナ
ー３を静電吸着させ、感光面の静電潜像を可視像
化する磁気ブラシ式現像装置である。この現像装
置１の上方部位にはトナー濃度検知装置（詳図し
ない）５およびこのトナー濃度検知装置５からの
信号によつて現像剤収納容器６内に適当量のトナ
ー３を補給するトナー補給装置７が設けられてい
る。 Hereinafter, one embodiment of the present invention will be described based on FIG. 2. 1 in the figure shows toner 3 on the photosensitive surface of photoconductor 2.
This is a magnetic brush type developing device which makes the electrostatic latent image on the photosensitive surface visible by slidingly contacting the developer 4 consisting of a carrier and a carrier to electrostatically attract the toner 3. A toner concentration detecting device (not shown in detail) 5 and a toner replenishing device for replenishing an appropriate amount of toner 3 into a developer storage container 6 based on a signal from the toner concentration detecting device 5 are disposed above the developing device 1. 7 is provided.
トナー補給装置７はつぎのように構成されてい
る。すなわち、８はトナーボツクスで、このトナ
ーボツクス８は下端にトナー補給口９を有した第
１のトナー収容室１０およびこの第１のトナー収
容室１０の側方部位に連通する第２のトナー収容
室１１を有しており、上端に枢設されたカバー１
２を開放することによりこれらトナー収容室１
０，１１内にトナー３を収容できるようになつて
いる。 The toner replenishing device 7 is configured as follows. That is, 8 is a toner box, and this toner box 8 has a first toner storage chamber 10 having a toner replenishment port 9 at its lower end and a second toner storage chamber communicating with a side portion of the first toner storage chamber 10. A cover 1 having a chamber 11 and pivoted at the upper end.
By opening 2, these toner storage chambers 1
The toner 3 can be stored in the spaces 0 and 11.
また、上記トナー補給口９は上記現像剤収納容
器６内上方に臨んでいるとともにこのトナー補給
口９はモルトプレン等の多孔質弾性部材からなる
トナー補給ローラ１３によつて閉塞されている。 Further, the toner replenishment port 9 faces upwardly into the developer storage container 6, and is closed by a toner replenishment roller 13 made of a porous elastic material such as moltoprene.
トナー補給ローラ１３の一端はトナーボツクス
８外に延出しており、図示しない動力伝達機構を
介して上記現像装置１のマグネツトロール１４の
回転力が伝達され図中矢印方向に回転するように
なつている。また、トナー補給口９の開口左側縁
にはトナー補給ローラ１３に付着したトナー３を
掻き落すトナー掻落しブレード１５が設けられて
いて、トナー補給ローラ１３が現像装置１の現像
動作に伴つて間欠回転すると所定量のトナー３が
現像剤収納容器６内に補給されるようになつてい
る。 One end of the toner replenishing roller 13 extends outside the toner box 8, and the rotational force of the magnet roll 14 of the developing device 1 is transmitted through a power transmission mechanism (not shown) to rotate it in the direction of the arrow in the figure. ing. Further, a toner scraping blade 15 is provided on the left edge of the opening of the toner replenishing port 9 to scrape off the toner 3 adhering to the toner replenishing roller 13. When rotated, a predetermined amount of toner 3 is replenished into the developer storage container 6.
また、第２のトナー収容室１１の底部は樋状を
しているとともにこのトナー収容室１１内にはマ
グネツトロール１４に連動してプレート１５を図
中矢印方向に円を描くように回転して第２のトナ
ー収容室１１内のトナー３を第１のトナー収容室
１０に供給するトナー供給機構１６が設けられて
いる。 The bottom of the second toner storage chamber 11 is shaped like a gutter, and inside this toner storage chamber 11, a plate 15 is rotated in a circle in the direction of the arrow in the figure in conjunction with the magnet roll 14. A toner supply mechanism 16 is provided which supplies the toner 3 in the second toner storage chamber 11 to the first toner storage chamber 10.
なお、１７は複写紙の紙幅に応じてトナー供給
規制体１８をトナー補給ローラ１３に押し付け、
トナー補給幅を調整するトナー補給幅調節機構で
ある。 Note that 17 presses the toner supply regulating body 18 against the toner supply roller 13 according to the paper width of the copy paper,
This is a toner supply width adjustment mechanism that adjusts the toner supply width.
しかして、トナーボツクス８内に収容されたト
ナー３はトナー補給ローラ１３の回転に伴つて第
１のトナー収容室１０から現像剤収納容器６内に
補給されることになる。一方、トナー補給ローラ
１３の回転と同期して第２のトナー収容室１１に
設けられたトナー供給機構１６のプレート１５が
回転し、トナーボツクス８内のトナー３に振動を
与えて第１のトナー収容室１０にトナー３がスム
ーズに導かれることになる。さらに、トナーボツ
クス８内のトナー３が減少すると第２のトナー収
容室１１内のトナー３がプレート１５の働きによ
り残らず第１のトナー収容室１０内に供給される
ことになる。 Thus, the toner 3 stored in the toner box 8 is replenished into the developer storage container 6 from the first toner storage chamber 10 as the toner replenishment roller 13 rotates. On the other hand, the plate 15 of the toner supply mechanism 16 provided in the second toner storage chamber 11 rotates in synchronization with the rotation of the toner supply roller 13, and vibrates the toner 3 in the toner box 8, thereby discharging the first toner. The toner 3 is smoothly guided into the storage chamber 10. Further, when the amount of toner 3 in the toner box 8 decreases, all of the toner 3 in the second toner storage chamber 11 is supplied into the first toner storage chamber 10 by the action of the plate 15.
本考案は、以上説明したように下端にトナー補
給ローラで閉塞されるトナー補給口を有した第１
のトナー収容室の側方部位に第２のトナー収容室
を連通したトナーボツクスとしたから、従来に比
してトナー収容量を多くすることができるととも
に第２のトナー収容室の底部をトナー補給口より
上方に位置させこのトナー収容室内のトナーを第
１のトナー収容室に供給するトナー供給機構を設
けたから収容したトナーを残すことなくトナー補
給ローラ上に運ぶことができ、長期に亘つて安定
したトナー補給が行なえるといつた効果を奏す
る。 As explained above, the present invention provides a first toner replenishment port having a toner replenishment port at the lower end that is closed by a toner replenishment roller.
Since the toner box has a second toner storage chamber connected to the side portion of the toner storage chamber, it is possible to increase the toner storage capacity compared to the conventional toner storage chamber, and the bottom of the second toner storage chamber can be used for toner replenishment. Since a toner supply mechanism is provided that is located above the opening and supplies the toner in this toner storage chamber to the first toner storage chamber, the stored toner can be conveyed onto the toner supply roller without leaving any residue behind, ensuring stability over a long period of time. This has the effect of being able to replenish the toner.
第１図は従来装置の構成を示す説明図、第２図
は本考案装置の一実施例を採用した電子複写機要
部の概略的縦断正面図である。
３……トナー、６……現像剤収納容器、７……
トナー補給装置、８……トナーボツクス、９……
トナー補給口、１０……第１のトナー収容室、１
１……第２のトナー収容室、１３……トナー補給
ローラ、１６……トナー供給機構。
FIG. 1 is an explanatory diagram showing the configuration of a conventional apparatus, and FIG. 2 is a schematic longitudinal sectional front view of the main parts of an electronic copying machine employing an embodiment of the apparatus of the present invention. 3...Toner, 6...Developer storage container, 7...
Toner supply device, 8... Toner box, 9...
Toner supply port, 10...first toner storage chamber, 1
DESCRIPTION OF SYMBOLS 1...Second toner storage chamber, 13...Toner supply roller, 16...Toner supply mechanism.
Claims (1)
室およびこの第１のトナー収容室の側方部位に連
通するとともにその底部がトナー補給口より上方
に位置する第２のトナー収容室を有したトナーボ
ツクスと、このトナーボツクスの上記トナー補給
口を閉塞する状態に設けられ回動に伴つてトナー
を現像剤収納容器内に補給するトナー補給ローラ
と、上記第２のトナー収容室に設けられ第１のト
ナー収容室にトナーを供給するトナー供給機構と
を具備してなることを特徴とするトナー補給装
置。 The toner storage chamber has a first toner storage chamber having a toner replenishment port at its lower end, and a second toner storage chamber that communicates with a side portion of the first toner storage chamber and whose bottom portion is located above the toner replenishment port. a toner box, a toner replenishing roller provided in a state to close the toner replenishing port of the toner box and replenishing toner into the developer storage container as it rotates, and a toner replenishing roller provided in the second toner storage chamber 1. A toner supply device comprising: a toner supply mechanism that supplies toner to one toner storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978051598U JPS631323Y2 (en) | 1978-04-19 | 1978-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978051598U JPS631323Y2 (en) | 1978-04-19 | 1978-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54154744U JPS54154744U (en) | 1979-10-27 |
| JPS631323Y2 true JPS631323Y2 (en) | 1988-01-13 |
Family
ID=28941245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978051598U Expired JPS631323Y2 (en) | 1978-04-19 | 1978-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS631323Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57130079A (en) * | 1981-02-06 | 1982-08-12 | Matsushita Electric Ind Co Ltd | Cleaning device of copying machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50149352A (en) * | 1974-05-21 | 1975-11-29 | ||
| JPS539844B2 (en) * | 1974-01-09 | 1978-04-08 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622207Y2 (en) * | 1976-07-09 | 1981-05-25 |
-
1978
- 1978-04-19 JP JP1978051598U patent/JPS631323Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539844B2 (en) * | 1974-01-09 | 1978-04-08 | ||
| JPS50149352A (en) * | 1974-05-21 | 1975-11-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54154744U (en) | 1979-10-27 |
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