JPH0437958U - - Google Patents

Info

Publication number
JPH0437958U
JPH0437958U JP7903990U JP7903990U JPH0437958U JP H0437958 U JPH0437958 U JP H0437958U JP 7903990 U JP7903990 U JP 7903990U JP 7903990 U JP7903990 U JP 7903990U JP H0437958 U JPH0437958 U JP H0437958U
Authority
JP
Japan
Prior art keywords
layer thickness
regulating member
thickness regulating
developing device
developing
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
JP7903990U
Other languages
Japanese (ja)
Other versions
JP2583894Y2 (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 JP1990079039U priority Critical patent/JP2583894Y2/en
Publication of JPH0437958U publication Critical patent/JPH0437958U/ja
Application granted granted Critical
Publication of JP2583894Y2 publication Critical patent/JP2583894Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の現像装置の側面図、第２図ａ
は本考案の層厚規制部材の構成を示す側面図、同
図ｂとｃとは、それぞれ層厚規制部材の初期状態
とブレードに摩耗が生じた場合との説明図、第３
図は層厚規制部材と現像ローラとの関係を示す説
明図、第４図ａは本考案の層厚規制部材の別の実
施例の側面図、同図ｂとｃとは、それぞれ第４図
ａに示される層厚規制部材の初期状態とブレード
に摩耗が生じた場合との説明図、第５図ａないし
ｃは、それぞれ本考案の層厚規制部材の他の実施
例の側面図、第６図は本考案の現像装置が適用さ
れる画像形成装置の説明図、第７図ａとｂとは、
それぞれ従来の層厚規制部材の初期状態とブレー
ドの摩耗状態との説明図、第８図ａないしｃは、
それぞれ従来の層厚規制部材の例の説明図である
。 図中の符号、１……現像装置、２……トナー収
容部、３……パドル、４……現像ローラ、５……
層厚規制部材、６……板バネ、７……弾性体ブレ
ード、２０……感光体ドラム、２１……帯電コロ
トロン、２３……現像装置、２６……転写・剥離
コロトロン、２８……クリーニング装置。 Figure 1 is a side view of the developing device of the present invention, Figure 2a
Figure 3 is a side view showing the configuration of the layer thickness regulating member of the present invention;
The figure is an explanatory diagram showing the relationship between the layer thickness regulating member and the developing roller, FIG. 4a is a side view of another embodiment of the layer thickness regulating member of the present invention, and FIGS. Figures 5a to 5c are side views of other embodiments of the layer thickness regulating member of the present invention, respectively. FIG. 6 is an explanatory diagram of an image forming apparatus to which the developing device of the present invention is applied, and FIG. 7 a and b are:
FIGS. 8a to 8c are explanatory diagrams of the initial state of the conventional layer thickness regulating member and the worn state of the blade, respectively.
FIG. 6 is an explanatory diagram of an example of a conventional layer thickness regulating member. Symbols in the figure: 1...Developing device, 2...Toner storage unit, 3...Paddle, 4...Developing roller, 5...
Layer thickness regulating member, 6...plate spring, 7...elastic blade, 20...photosensitive drum, 21...charging corotron, 23...developing device, 26...transfer/separation corotron, 28...cleaning device .

Claims (1)

【実用新案登録請求の範囲】 一方が現像装置本体に支持され、他端が現像ロ
ーラの表面に当接させた層厚規制部材にてトナー
の層厚規制を行うように構成してなる現像装置に
おいて、 前記現像ローラの表面に前記層厚規制部材が接
する位置と、ローラの中心とを結ぶ線の付近で、
前記層厚規制部材の前記現像ローラへの押圧力を
弱く設定したことを特徴とする現像装置。[Claim for Utility Model Registration] A developing device configured to regulate the layer thickness of toner by a layer thickness regulating member whose one end is supported by the developing device main body and whose other end is in contact with the surface of the developing roller. In the vicinity of a line connecting a position where the layer thickness regulating member contacts the surface of the developing roller and the center of the roller,
A developing device characterized in that a pressing force of the layer thickness regulating member against the developing roller is set to be weak.
JP1990079039U 1990-07-24 1990-07-24 Developing device Expired - Lifetime JP2583894Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990079039U JP2583894Y2 (en) 1990-07-24 1990-07-24 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990079039U JP2583894Y2 (en) 1990-07-24 1990-07-24 Developing device

Publications (2)

Publication Number Publication Date
JPH0437958U true JPH0437958U (en) 1992-03-31
JP2583894Y2 JP2583894Y2 (en) 1998-10-27

Family

ID=31622846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990079039U Expired - Lifetime JP2583894Y2 (en) 1990-07-24 1990-07-24 Developing device

Country Status (1)

Country Link
JP (1) JP2583894Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013050536A (en) * 2011-08-30 2013-03-14 Fuji Xerox Co Ltd Layer regulation member, developing device using the same, and image forming device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239175A (en) * 1988-07-29 1990-02-08 Fuji Xerox Co Ltd One-component developing device
JPH02135479A (en) * 1988-11-17 1990-05-24 Canon Inc Developing device
JPH02154280A (en) * 1988-12-07 1990-06-13 Matsushita Electric Ind Co Ltd Developing device
JPH02173681A (en) * 1988-12-27 1990-07-05 Canon Inc Developing device
JPH02196265A (en) * 1989-01-26 1990-08-02 Canon Inc Developing device
JPH02301784A (en) * 1989-05-17 1990-12-13 Matsushita Electric Ind Co Ltd Developing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239175A (en) * 1988-07-29 1990-02-08 Fuji Xerox Co Ltd One-component developing device
JPH02135479A (en) * 1988-11-17 1990-05-24 Canon Inc Developing device
JPH02154280A (en) * 1988-12-07 1990-06-13 Matsushita Electric Ind Co Ltd Developing device
JPH02173681A (en) * 1988-12-27 1990-07-05 Canon Inc Developing device
JPH02196265A (en) * 1989-01-26 1990-08-02 Canon Inc Developing device
JPH02301784A (en) * 1989-05-17 1990-12-13 Matsushita Electric Ind Co Ltd Developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013050536A (en) * 2011-08-30 2013-03-14 Fuji Xerox Co Ltd Layer regulation member, developing device using the same, and image forming device

Also Published As

Publication number Publication date
JP2583894Y2 (en) 1998-10-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term