JPH0298352U - - Google Patents
Info
- Publication number
- JPH0298352U JPH0298352U JP639689U JP639689U JPH0298352U JP H0298352 U JPH0298352 U JP H0298352U JP 639689 U JP639689 U JP 639689U JP 639689 U JP639689 U JP 639689U JP H0298352 U JPH0298352 U JP H0298352U
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- positioning member
- developing device
- positioning
- gap
- 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
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本案一実施例の概略構成図、第２図は
同上実施例における現像器の位置決め構成部の概
略図、第３図はその詳細図、第４図Ａ及びＢは現
像器の位置決めのための駆動構成をモード毎の態
勢として示す図、第５図Ａは第３図のＡ―Ａ線に
沿う断面図、同図Ｂは介入位置決め部材が退出し
た状態の同図Ａからの作用図、第６図Ａ及びＢは
画像濃度特性を現像間隙の大小に応じてそれぞれ
示す図である。
１……潜像担持体としての感光体、５……現像
器、７……現像剤担持部材としての現像スリーブ
、１１……位置決め部材、１２……被位置決め部
材、１３……介入位置決め部材。
Fig. 1 is a schematic diagram of the configuration of the present embodiment, Fig. 2 is a schematic diagram of the positioning component of the developing device in the same embodiment, Fig. 3 is a detailed view thereof, and Fig. 4 A and B are the positioning of the developing device. Figure 5A is a sectional view taken along the line A-A in Figure 3, and Figure B is the action from Figure A with the intervention positioning member retracted. 6A and 6B are diagrams showing image density characteristics depending on the size of the development gap, respectively. DESCRIPTION OF SYMBOLS 1... Photoreceptor as a latent image carrier, 5... Developing device, 7... Developing sleeve as a developer carrying member, 11... Positioning member, 12... Positioned member, 13... Intervening positioning member.
Claims (1)
つつ搬送して潜像担持体に形成された静電潜像を
現像する現像剤担持部材と、 潜像担持体と現像器との任意の一方の側に設け
られる位置決め部材と、 潜像担持体と現像器との任意の他方の側に設け
られ、べた画像の再現良好性を優先するモードの
設定時、前記位置決め部材に直接、当接して、現
像剤担持部材の、潜像担持に対する間隙が小間隙
に設定されるように、現像剤担持部材を位置決め
するための被位置決め部材と、 線画像の再現良好性を優先するモード設定時、
位置決め部材の被位置決め部材との間に介入して
、厚み分、前記間隙が大間隙に設定されるように
、現像剤担持部材を位置決めする介入位置決め部
材とを具備することを特徴とする画像形成装置。[Claims for Utility Model Registration] A developing device disposed opposite to a latent image carrier, and an electrostatic charge formed on the latent image carrier by being conveyed while supporting a developer on the peripheral surface of the developing device. a developer carrying member for developing a latent image; a positioning member provided on any one side of the latent image carrier and the developing device; and a positioning member provided on any other side of the latent image carrying body and the developing device; When setting a mode that gives priority to good reproduction of solid images, the developer carrying member is moved directly into contact with the positioning member so that the gap between the developer carrying member and the latent image carrying member is set to a small gap. When setting a mode that prioritizes the positioning member for positioning and the good reproduction of line images,
Image formation characterized by comprising an intervening positioning member that intervenes between the positioning member and the member to be positioned and positions the developer carrying member so that the gap is set to a large gap by the thickness. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP639689U JPH0298352U (en) | 1989-01-25 | 1989-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP639689U JPH0298352U (en) | 1989-01-25 | 1989-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0298352U true JPH0298352U (en) | 1990-08-06 |
Family
ID=31210534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP639689U Pending JPH0298352U (en) | 1989-01-25 | 1989-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0298352U (en) |
-
1989
- 1989-01-25 JP JP639689U patent/JPH0298352U/ja active Pending
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