JPH01140565U - - Google Patents

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Publication number
JPH01140565U
JPH01140565U JP3645288U JP3645288U JPH01140565U JP H01140565 U JPH01140565 U JP H01140565U JP 3645288 U JP3645288 U JP 3645288U JP 3645288 U JP3645288 U JP 3645288U JP H01140565 U JPH01140565 U JP H01140565U
Authority
JP
Japan
Prior art keywords
toner
holding member
layer thickness
toner layer
thickness regulating
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.)
Granted
Application number
JP3645288U
Other languages
Japanese (ja)
Other versions
JPH0610372Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988036452U priority Critical patent/JPH0610372Y2/en
Publication of JPH01140565U publication Critical patent/JPH01140565U/ja
Application granted granted Critical
Publication of JPH0610372Y2 publication Critical patent/JPH0610372Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Dry Development In Electrophotography (AREA)

Description

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

第１図は、この考案の第１実施例を説明するた
め、概略的な装置断面により示す説明図、第２図
は、第１実施例に係る装置の制御手段の一構成例
を示すブロツク図、第３図は、第１図と同様にし
て、第２実施例を説明するための図、第４図及び
第５図は、この考案の第３実施例または第４実施
例を説明するため、圧接保持部材支持部の構成を
概略的に示す説明図、第６図は、従来技術を説明
するため、概略的な装置断面により示す説明図、
第７図Ａ及びＢは、従来技術を説明するため、ト
ナー担持体の概略的な切り欠き断面により示す説
明図である。 １１……トナー容器、１３……トナー、１５…
…導電性支持体、１７……弾性トナー担持層、１
９……現像ローラー（トナー担持体）、２１……
トナー層厚規制部材、２３……圧接保持部材、２
５……静電潜像担持体、２７……凹部、２９，５
３，６１，６７……圧接保持部材支持部、３１…
…ソレノイド、３３……アーム、３５……リカバ
リーブレード、３７……規制板、３９……シヤフ
ト、４１……ピン、４３……ばね、４５……スト
ツパー、４７……制御回路、４９……現像ローラ
ー（トナー担持体）駆動部、５１……圧接保持部
材支持部用電源、５５……ばね、５７……ラツク
、５９……ピニオン、６３……回転軸、６５……
カム、ａ……トナー担持体の回転方向、ｂ……当
接面、ｃ……静電潜像担持体の回転方向、ｄ……
接触面、ｅ……トナー層厚の大きな部分、ｆ，ｇ
，ｈ，ｉ……圧接保持部材支持部の動作方向、ｊ
……カムの回転方向。 FIG. 1 is an explanatory diagram showing a schematic cross-section of the device in order to explain the first embodiment of the invention, and FIG. 2 is a block diagram showing an example of the configuration of the control means of the device according to the first embodiment. , FIG. 3 is a diagram for explaining the second embodiment in the same manner as FIG. 1, and FIGS. 4 and 5 are diagrams for explaining the third or fourth embodiment of this invention. FIG. 6 is an explanatory diagram schematically showing the structure of the press-contact holding member support part; FIG.
FIGS. 7A and 7B are explanatory diagrams showing a schematic cutaway cross section of a toner carrier in order to explain the prior art. 11...Toner container, 13...Toner, 15...
...Conductive support, 17...Elastic toner carrying layer, 1
9...Developing roller (toner carrier), 21...
Toner layer thickness regulating member, 23...pressure holding member, 2
5... Electrostatic latent image carrier, 27... Concavity, 29,5
3, 61, 67... pressure contact holding member support section, 31...
... Solenoid, 33 ... Arm, 35 ... Recovery blade, 37 ... Regulation plate, 39 ... Shaft, 41 ... Pin, 43 ... Spring, 45 ... Stopper, 47 ... Control circuit, 49 ... Development Roller (toner carrier) drive section, 51... Power supply for pressure contact holding member support section, 55... Spring, 57... Rack, 59... Pinion, 63... Rotating shaft, 65...
Cam, a...rotation direction of toner carrier, b...contact surface, c...rotation direction of electrostatic latent image carrier, d...
Contact surface, e...portion with large toner layer thickness, f, g
, h, i...Operating direction of the press-contact holding member support section, j
...Rotation direction of the cam.

Claims (1)

【実用新案登録請求の範囲】 トナー層を担持するトナー担持体と、圧接保持
部材により前記トナー担持体に当接配置されたト
ナー層厚規制部材とを具えて成る現像装置におい
て、 前記トナー担持体と前記トナー層厚規制部材と
の間の圧接力を、装置の休止時に、解除または減
少させるための圧接保持部材支持部を具えて成る ことを特徴とする現像装置。[Claims for Utility Model Registration] A developing device comprising a toner carrier carrying a toner layer and a toner layer thickness regulating member disposed in contact with the toner carrier by a pressure holding member, the toner carrier comprising: A developing device comprising a pressure holding member supporting portion for releasing or reducing the pressure force between the toner layer thickness regulating member and the toner layer thickness regulating member when the device is at rest.
JP1988036452U 1988-03-19 1988-03-19 Development device Expired - Lifetime JPH0610372Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988036452U JPH0610372Y2 (en) 1988-03-19 1988-03-19 Development device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988036452U JPH0610372Y2 (en) 1988-03-19 1988-03-19 Development device

Publications (2)

Publication Number Publication Date
JPH01140565U true JPH01140565U (en) 1989-09-26
JPH0610372Y2 JPH0610372Y2 (en) 1994-03-16

Family

ID=31263054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988036452U Expired - Lifetime JPH0610372Y2 (en) 1988-03-19 1988-03-19 Development device

Country Status (1)

Country Link
JP (1) JPH0610372Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485036A (en) * 1977-12-20 1979-07-06 Ricoh Co Ltd Developing device of electrostatic latent images
JPS5611479A (en) * 1979-07-09 1981-02-04 Toshiba Corp Removing method of unrecovered toner in cleaning device
JPS5867348U (en) * 1981-10-31 1983-05-07 株式会社リコー dry developing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485036A (en) * 1977-12-20 1979-07-06 Ricoh Co Ltd Developing device of electrostatic latent images
JPS5611479A (en) * 1979-07-09 1981-02-04 Toshiba Corp Removing method of unrecovered toner in cleaning device
JPS5867348U (en) * 1981-10-31 1983-05-07 株式会社リコー dry developing device

Also Published As

Publication number Publication date
JPH0610372Y2 (en) 1994-03-16

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