JPS6111158U - Developing unit of electrophotographic printing machine - Google Patents

Developing unit of electrophotographic printing machine

Info

Publication number
JPS6111158U
JPS6111158U JP9422984U JP9422984U JPS6111158U JP S6111158 U JPS6111158 U JP S6111158U JP 9422984 U JP9422984 U JP 9422984U JP 9422984 U JP9422984 U JP 9422984U JP S6111158 U JPS6111158 U JP S6111158U
Authority
JP
Japan
Prior art keywords
printing machine
electrophotographic printing
developing device
developing unit
toner
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
Application number
JP9422984U
Other languages
Japanese (ja)
Inventor
邦宏 菅野
Original Assignee
日本信号株式会社
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 by 日本信号株式会社 filed Critical 日本信号株式会社
Priority to JP9422984U priority Critical patent/JPS6111158U/en
Publication of JPS6111158U publication Critical patent/JPS6111158U/en
Pending legal-status Critical Current

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  • Developing For Electrophotography (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は電子写真式印刷機の基本的な構成を示す側面図
、第２図はバイアス電圧印加時間と現像器の電位との関
係を、従来と本考案とを対比して示すタイムチャート、
第３図は露光器を露光と除電に共用する場合の感光ドラ
ムへの光照射と、現像器のバイアス電圧印茄時間と及び
感光ドラムのトナーの付着状態との関係を示すタイムチ
ャートである。 第４図はこの考案の実施例を示す側面図である。 １・・・感光ドラム、２・・・帯電器、３・・・露光器
、４、・・・現像器、５・・・転写器、６・・・定着器
、７・・・除電器、１０・・・スイッチ、１１・・・電
源、１２・・・バイパス抵抗器。FIG. 1 is a side view showing the basic configuration of an electrophotographic printing machine, and FIG. 2 is a time chart showing the relationship between the bias voltage application time and the potential of the developing device, comparing the conventional and the present invention.
FIG. 3 is a time chart showing the relationship between the irradiation of light onto the photosensitive drum, the bias voltage application time of the developing device, and the state of adhesion of toner on the photosensitive drum when the exposing device is used for both exposure and static elimination. FIG. 4 is a side view showing an embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Photosensitive drum, 2... Charger, 3... Exposure device, 4... Developing device, 5... Transfer device, 6... Fixing device, 7... Static eliminator, 10...Switch, 11...Power supply, 12...Bypass resistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バイアス電圧を印加され、トナーに帯電させて感光ドラ
ムの帯電されていない部分との間に生じる電位差により
前記トナーを前記感光ドラムに付着させる電子写真式印
刷機の現像器において、前記バイアス電圧印加を停止し
た時に前記現像器に残留する電荷を放電するためのバイ
パス抵抗器を備えたことを特徴とする電子写真式印刷機
の現像器。In a developing device of an electrophotographic printing machine, a developing device of an electrophotographic printing machine applies a bias voltage to charge the toner and causes the toner to adhere to the photosensitive drum due to a potential difference between the toner and an uncharged portion of the photosensitive drum. A developing device for an electrophotographic printing machine, comprising a bypass resistor for discharging charges remaining in the developing device when the developing device is stopped.
JP9422984U 1984-06-23 1984-06-23 Developing unit of electrophotographic printing machine Pending JPS6111158U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9422984U JPS6111158U (en) 1984-06-23 1984-06-23 Developing unit of electrophotographic printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9422984U JPS6111158U (en) 1984-06-23 1984-06-23 Developing unit of electrophotographic printing machine

Publications (1)

Publication Number Publication Date
JPS6111158U true JPS6111158U (en) 1986-01-23

Family

ID=30652604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9422984U Pending JPS6111158U (en) 1984-06-23 1984-06-23 Developing unit of electrophotographic printing machine

Country Status (1)

Country Link
JP (1) JPS6111158U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120127A (en) * 1989-09-30 1991-05-22 Toppan Printing Co Ltd Longitudinally stacking and feeding device for sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120127A (en) * 1989-09-30 1991-05-22 Toppan Printing Co Ltd Longitudinally stacking and feeding device for sheet

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