JPS6374656U - - Google Patents

Info

Publication number
JPS6374656U
JPS6374656U JP16906886U JP16906886U JPS6374656U JP S6374656 U JPS6374656 U JP S6374656U JP 16906886 U JP16906886 U JP 16906886U JP 16906886 U JP16906886 U JP 16906886U JP S6374656 U JPS6374656 U JP S6374656U
Authority
JP
Japan
Prior art keywords
sensor
toner density
density
reference value
device configured
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
JP16906886U
Other languages
English (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 JP16906886U priority Critical patent/JPS6374656U/ja
Priority to US07/114,106 priority patent/US4801980A/en
Publication of JPS6374656U publication Critical patent/JPS6374656U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Dry Development In Electrophotography (AREA)

Description

【図面の簡単な説明】
第1図は本考案を適用したセンサ汚れ補償の回
路図、第2図はセンサ汚れ補償用データ取り込み
とトナー濃度データ取り込みのタイミングの説明
図、第3図は従来の一般的な電子写真式複写装置
の原理説明図、第4図は従来のトナー濃度制御の
回路図である。 17……センサ。

Claims (1)

  1. 【実用新案登録請求の範囲】 基準濃度板の画像を感光体ドラム面に現像した
    パツチ画像の濃度をセンサで検知して、トナー濃
    度を制御するように構成したトナー濃度制御装置
    において、 上記感光体ドラムの非画像形成領域面での反射
    光を受光する上記センサの受光素子の出力が基準
    値となるように、該センサの発光素子の発光量を
    制御するように構成したセンサの汚れ補償装置を
    具備し、且つ上記基準値を変化させる手段を有す
    ることを特徴とするトナー濃度制御装置。
JP16906886U 1986-10-29 1986-11-05 Pending JPS6374656U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16906886U JPS6374656U (ja) 1986-11-05 1986-11-05
US07/114,106 US4801980A (en) 1986-10-29 1987-10-28 Toner density control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16906886U JPS6374656U (ja) 1986-11-05 1986-11-05

Publications (1)

Publication Number Publication Date
JPS6374656U true JPS6374656U (ja) 1988-05-18

Family

ID=31102536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16906886U Pending JPS6374656U (ja) 1986-10-29 1986-11-05

Country Status (1)

Country Link
JP (1) JPS6374656U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565976A (en) * 1978-11-11 1980-05-17 Ricoh Co Ltd Toner concentration control unit of recorder
JPS58182650A (ja) * 1982-04-20 1983-10-25 Ricoh Co Ltd 電子写真複写機の画像濃度制御装置の調整方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565976A (en) * 1978-11-11 1980-05-17 Ricoh Co Ltd Toner concentration control unit of recorder
JPS58182650A (ja) * 1982-04-20 1983-10-25 Ricoh Co Ltd 電子写真複写機の画像濃度制御装置の調整方法

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