JPH039465B2 - - Google Patents
Info
- Publication number
- JPH039465B2 JPH039465B2 JP16192483A JP16192483A JPH039465B2 JP H039465 B2 JPH039465 B2 JP H039465B2 JP 16192483 A JP16192483 A JP 16192483A JP 16192483 A JP16192483 A JP 16192483A JP H039465 B2 JPH039465 B2 JP H039465B2
- Authority
- JP
- Japan
- Prior art keywords
- forming member
- developer
- layer forming
- layer
- longitudinal direction
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子複写機等に用いられる現像装
置、詳しくは、担持体上に供給された現像剤を層
形成部材によつて所定厚さの現像剤層とし、この
現像剤層を静電潜像に搬送して可視像に現像する
非磁性−成分現像装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a developing device used in an electronic copying machine or the like, and more specifically, to developing a developer supplied onto a carrier to a predetermined thickness using a layer forming member. The present invention relates to a non-magnetic component developing device which transports the developer layer to an electrostatic latent image and develops it into a visible image.
従来技術
第１図、第２図に示すように、担持体ａ上に層
形成部材ｂを均一な圧力で接触させ、この層形成
部材ｂによつて現像剤を所定厚さの現像剤層と
し、この現像剤層を静電潜像に搬送して可視像に
現像するようにした現像装置が知られている。Prior Art As shown in FIGS. 1 and 2, a layer forming member b is brought into contact with a carrier a with uniform pressure, and a developer is formed into a developer layer of a predetermined thickness by this layer forming member b. A developing device is known that conveys this developer layer to an electrostatic latent image and develops it into a visible image.
しかし、前述の現像装置であると層形成部材ｂ
が薄肉板状となり、長手方向に亘つて均一な圧力
で接触しているので、現像剤層を形成する際に層
形成部材の長手方向両端から現像剤がこぼれ落
ち、長手方向に亘つて均一な現像剤層が形成でき
ないとの不具合を有する。 However, in the above-mentioned developing device, the layer forming member b
is in the form of a thin plate and is in contact with uniform pressure over the longitudinal direction, so when forming the developer layer, the developer spills from both longitudinal ends of the layer forming member, resulting in uniform development over the longitudinal direction. The problem is that the agent layer cannot be formed.
発明の目的
層形成部材の長手方向両端から現像剤がこぼれ
落ちることがなく、長手方向に亘つて均一なる現
像剤層を形成できるようにすることを目的とす
る。OBJECTS OF THE INVENTION It is an object of the invention to prevent developer from spilling from both longitudinal ends of a layer forming member and to form a uniform developer layer in the longitudinal direction.
発明の構成
層形成部材の長手方向両端部の剛性を中間部の
剛性よりも強くして担持体に接触させる。Structure of the Invention The rigidity of both ends of the layer forming member in the longitudinal direction is made stronger than the rigidity of the intermediate part, and the layer forming member is brought into contact with the carrier.
実施例
第３図は斜視図、第４図は側面図であり、円筒
形状の担持体１には薄肉板状のブレード２が所定
の圧力で接触してあると共に、ブレード２の背面
における長手方向両端部には補強板３，３が添着
固定されて層形成部材を構成している。Embodiment FIG. 3 is a perspective view, and FIG. 4 is a side view, in which a thin plate-shaped blade 2 is in contact with a cylindrical carrier 1 under a predetermined pressure, and a longitudinal direction on the back surface of the blade 2 is shown. Reinforcement plates 3, 3 are attached and fixed to both ends to constitute a layer forming member.
前記ブレード２はりん青銅・ステンレス等の金
属により厚さ0.1mm、幅30mmで所定長さを有する
板状体となり、補強板３はりん青銅・ステンレス
等の金属により厚さ0.1mm、幅30mm、長さ10mmの
板状体となり、ブレード２の長手方向両端部に添
着固定してあり、厚形成部材の長手方向両端部
（長さ10mm）の厚さは0.2mmで、中間部の厚さは
0.1mmとなつて、両端部の剛性が中間部の剛性よ
りも大きくしてある。 The blade 2 is made of a metal such as phosphor bronze or stainless steel and has a thickness of 0.1 mm, a width of 30 mm, and a predetermined length.The reinforcing plate 3 is made of a metal such as phosphor bronze or stainless steel and has a thickness of 0.1 mm and a width of 30 mm. It is a plate-shaped body with a length of 10 mm, and is attached and fixed to both longitudinal ends of the blade 2. The thickness of the thick forming member is 0.2 mm at both longitudinal ends (length 10 mm), and the thickness of the middle part is 0.2 mm.
0.1mm, and the rigidity at both ends is greater than that at the middle.
この様であるから、層形成部材を担持体１に長
手方向に亘つて均一な圧力（例えば、100ｇ／cm2）
で押しつけると、担持体１にかかる圧力は層形成
部材の長手方向両端部と対向する部分が中間部と
対向する部分よりも高くなる。 Because of this, the layer forming member is applied to the carrier 1 under uniform pressure (for example, 100 g/cm 2 ) over the longitudinal direction.
When pressed, the pressure applied to the carrier 1 is higher in the portion facing both ends in the longitudinal direction of the layer forming member than in the portion facing the intermediate portion.
したがつて、現像剤層を形成する際に層形成部
材の長手方向両端部より現像剤がこぼれることな
く確実にシールされ、長手方向に亘つて均一なる
現像剤層が形成される。 Therefore, when forming the developer layer, the developer is reliably sealed from both longitudinal ends of the layer forming member without spilling, and a uniform developer layer is formed in the longitudinal direction.
なお、以上の実施例では補強板３を添着した
が、一枚の板の長手方向両端部の肉厚を厚く、中
間部の肉厚を薄くしても良いし、長手方向両端部
を剛性の強い材料で製作しても良いと共に、長手
方向両端部の幅を中間部の幅よりも若干広くして
も良い。 Although the reinforcing plate 3 is attached in the above embodiment, the wall thickness at both longitudinal ends of one plate may be thicker and the thickness at the middle part may be thinner, or both longitudinal ends may be made thicker. It may be made of a strong material, and the width at both ends in the longitudinal direction may be slightly wider than the width at the middle portion.
つまり、層形成部材の長手方向両端部が中間部
よりも強い圧力で担持体に接触するようにすれば
良い。 In other words, it is sufficient that both longitudinal ends of the layer forming member come into contact with the carrier with stronger pressure than the middle part.
発明の効果
層形成部材の長手方向両端部より現像剤がこぼ
れ落ちることがなく、長手方向に亘つて均一なる
現像剤層を形成できる。Effects of the Invention The developer does not spill out from both ends of the layer forming member in the longitudinal direction, and a uniform developer layer can be formed in the longitudinal direction.
第１図、第２図は従来例の斜視図、側面図、第
３図以降は本発明の実施例を示し、第３図は全体
斜視図、第４図は側面図、第５図は層形成部材の
正面図、第６図は側面図である。
１は担持体。
1 and 2 show a perspective view and a side view of a conventional example, and FIG. 3 and subsequent figures show embodiments of the present invention. FIG. 3 is an overall perspective view, FIG. FIG. 6 is a front view of the forming member, and FIG. 6 is a side view. 1 is a carrier.
Claims (1)
により所定厚さの現像剤層とし、この現像剤層を
静電潜像に搬送して現像する現像装置において、
前記層形成部材の長手方向両端部の剛性を中間部
の剛性よりも強くして前記担持体１に接触させた
ことを特徴とする現像装置。1. In a developing device that forms a developer layer of a predetermined thickness from the developer supplied onto the carrier 1 by a layer forming member, and conveys this developer layer to an electrostatic latent image to develop it,
A developing device characterized in that both ends of the layer forming member in the longitudinal direction are made to have greater rigidity than an intermediate portion and are brought into contact with the carrier 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16192483A JPS6053972A (en) | 1983-09-05 | 1983-09-05 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16192483A JPS6053972A (en) | 1983-09-05 | 1983-09-05 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6053972A JPS6053972A (en) | 1985-03-28 |
| JPH039465B2 true JPH039465B2 (en) | 1991-02-08 |
Family
ID=15744616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16192483A Granted JPS6053972A (en) | 1983-09-05 | 1983-09-05 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053972A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746248B2 (en) * | 1984-09-28 | 1995-05-17 | 株式会社東芝 | Development device |
| JPH0652449B2 (en) * | 1985-09-30 | 1994-07-06 | 京セラ株式会社 | Toner layer thickness forming device |
| JPH0746247B2 (en) * | 1986-10-16 | 1995-05-17 | 株式会社東芝 | Development device |
| JPH0748122B2 (en) * | 1988-11-25 | 1995-05-24 | キヤノン株式会社 | Development device |
| JPH07219339A (en) * | 1994-01-31 | 1995-08-18 | Canon Inc | Elastic blade, manufacturing method thereof, and developing device |
-
1983
- 1983-09-05 JP JP16192483A patent/JPS6053972A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053972A (en) | 1985-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3093918B2 (en) | Developing device | |
| JP2851002B2 (en) | Developing sleeve of magnetic brush developing device | |
| JPS6054149U (en) | developing device | |
| ATE202219T1 (en) | IMAGE CARRIER MATERIAL FOR ELECTROPHOTOGRAPHIC PROCESSES | |
| JPH039465B2 (en) | ||
| EP0446034A3 (en) | Development apparatus | |
| EP0752627A3 (en) | Latent electrostatic image developing device | |
| JPH0546033Y2 (en) | ||
| JP2826822B2 (en) | One-component developing device | |
| JPH0528382B2 (en) | ||
| JPS61153684A (en) | Cleaning device | |
| JP2594930Y2 (en) | Developing device | |
| JPS6313073A (en) | Electric field curtain | |
| JPS60128465A (en) | Non-magnetic one-component developing device | |
| JPH0333258B2 (en) | ||
| JPS6235103Y2 (en) | ||
| JPS59186865U (en) | Electrostatic latent image holder | |
| JPH05307321A (en) | Developing device | |
| JPS59104159U (en) | Fusing device | |
| JPS63246769A (en) | Developing device | |
| JPH0459854U (en) | ||
| JPS6122384A (en) | Cleaning member | |
| JPH04104175A (en) | Developing unit of electrophotographic printer | |
| JPS60125662U (en) | Electrophotographic cleaning equipment | |
| JPS59161155U (en) | magnetic brush developing device |