JPH0287254U - - Google Patents

Info

Publication number
JPH0287254U
JPH0287254U JP16698788U JP16698788U JPH0287254U JP H0287254 U JPH0287254 U JP H0287254U JP 16698788 U JP16698788 U JP 16698788U JP 16698788 U JP16698788 U JP 16698788U JP H0287254 U JPH0287254 U JP H0287254U
Authority
JP
Japan
Prior art keywords
toner
recovery device
section
shutter member
opening
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
JP16698788U
Other languages
Japanese (ja)
Other versions
JPH085492Y2 (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 JP1988166987U priority Critical patent/JPH085492Y2/en
Priority to US07/452,282 priority patent/US5128724A/en
Priority to EP89123661A priority patent/EP0374920B1/en
Priority to DE68915718T priority patent/DE68915718T2/en
Publication of JPH0287254U publication Critical patent/JPH0287254U/ja
Application granted granted Critical
Publication of JPH085492Y2 publication Critical patent/JPH085492Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)

Description

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

第１図は本考案の一実施例を示し、トナー回収
装置を備えた画像形成ユニツトの構成図、第２図
は第１図に図示されないトナー回収装置の要部を
第１図に示す―線位置で断面にして示す構成
図、第３図は第２図に示す―線部分の断面図
、第４図は第２図に示すシヤツタ部材が開放位置
に移動した状態を示す構成図、第５図は第１図に
示す画像形成ユニツトが上下逆向きにされたとき
における現像剤収容室の逆向き状態を示す要部の
構成図、第６図は従来例におけるトナー回収装置
を備えた画像形成ユニツトの構成図、第７図は第
６図に示す―線部分を断面にして示すトナー
回収装置の要部の構成図、第８図ａは第６図に示
す画像形成ユニツトが上下逆向きにされたときに
おける現像剤収容室の逆向き状態を示す要部の構
成図、第８図ｂは第８図ａに示す―線部分を
断面にして示すトナー回収装置の構成図である。 ４…現像部、６…クリーニング部、１３…残留
トナー、１４…トナー搬送部材、１５…連通管、
１６…シヤツタ部材、１７ａ…開口部。 FIG. 1 shows an embodiment of the present invention, and is a block diagram of an image forming unit equipped with a toner collection device, and FIG. 2 shows main parts of the toner collection device that are not shown in FIG. 1. FIG. 3 is a cross-sectional view of the section shown in FIG. 2, FIG. 4 is a configuration diagram showing the shutter member shown in FIG. 2 moved to the open position, and FIG. The figure is a configuration diagram of the main parts showing the reverse orientation of the developer storage chamber when the image forming unit shown in Figure 1 is turned upside down, and Figure 6 is an image forming unit equipped with a toner recovery device in a conventional example. Figure 7 is a block diagram of the main parts of the toner recovery device shown in Figure 6, taken in cross section, and Figure 8a is a diagram showing the image forming unit shown in Figure 6 upside down. FIG. 8b is a block diagram of the toner recovery device shown in cross section taken along the line ``--'' shown in FIG. 8a. 4... Developing section, 6... Cleaning section, 13... Residual toner, 14... Toner conveying member, 15... Communication pipe,
16... Shutter member, 17a... Opening.

Claims (1)

【実用新案登録請求の範囲】 (1) クリーニング部と現像部とを連通させる連
通管内に前記クリーニング部から前記現像部へ残
留トナーを回収搬送し得るトナー搬送部材を備え
たトナー回収装置において、 前記連通管の前記現像部側の開口部に前記トナ
ー搬送部材と係合するシヤツタ部材を設け、該シ
ヤツタ部材は前記開口部を遮閉することを特徴と
するトナー回収装置。 (2) 前記シヤツタ部材は前記トナー搬送部材の
初期作動時に前記開口部を開放することを特徴と
する請求項１記載のトナー回収装置。[Claims for Utility Model Registration] (1) A toner recovery device including a toner conveying member capable of collecting and conveying residual toner from the cleaning section to the developing section in a communication pipe that communicates the cleaning section and the developing section, A toner recovery device characterized in that a shutter member that engages with the toner conveying member is provided at an opening on the side of the developing section of the communication pipe, and the shutter member closes the opening. (2) The toner recovery device according to claim 1, wherein the shutter member opens the opening portion at the time of initial operation of the toner conveying member.
JP1988166987U 1988-12-23 1988-12-23 Toner collection device Expired - Lifetime JPH085492Y2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1988166987U JPH085492Y2 (en) 1988-12-23 1988-12-23 Toner collection device
US07/452,282 US5128724A (en) 1988-12-23 1989-12-18 Developer restoring unit in an image forming apparatus
EP89123661A EP0374920B1 (en) 1988-12-23 1989-12-21 Developer circulator unit of the images forming apparatus
DE68915718T DE68915718T2 (en) 1988-12-23 1989-12-21 Developer transport unit for an image forming device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988166987U JPH085492Y2 (en) 1988-12-23 1988-12-23 Toner collection device

Publications (2)

Publication Number Publication Date
JPH0287254U true JPH0287254U (en) 1990-07-10
JPH085492Y2 JPH085492Y2 (en) 1996-02-14

Family

ID=31454872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988166987U Expired - Lifetime JPH085492Y2 (en) 1988-12-23 1988-12-23 Toner collection device

Country Status (1)

Country Link
JP (1) JPH085492Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053409A (en) * 2009-09-01 2011-03-17 Ricoh Co Ltd Toner conveying device, cleaning device and image forming apparatus
JP2013200481A (en) * 2012-03-26 2013-10-03 Fuji Xerox Co Ltd Powder feed device and image forming apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115765U (en) * 1982-02-01 1983-08-08 株式会社リコー Toner recovery device in electrophotographic equipment
JPS6199861U (en) * 1984-12-06 1986-06-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115765U (en) * 1982-02-01 1983-08-08 株式会社リコー Toner recovery device in electrophotographic equipment
JPS6199861U (en) * 1984-12-06 1986-06-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011053409A (en) * 2009-09-01 2011-03-17 Ricoh Co Ltd Toner conveying device, cleaning device and image forming apparatus
JP2013200481A (en) * 2012-03-26 2013-10-03 Fuji Xerox Co Ltd Powder feed device and image forming apparatus

Also Published As

Publication number Publication date
JPH085492Y2 (en) 1996-02-14

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