JPH02102570U - - Google Patents

Info

Publication number
JPH02102570U
JPH02102570U JP1139389U JP1139389U JPH02102570U JP H02102570 U JPH02102570 U JP H02102570U JP 1139389 U JP1139389 U JP 1139389U JP 1139389 U JP1139389 U JP 1139389U JP H02102570 U JPH02102570 U JP H02102570U
Authority
JP
Japan
Prior art keywords
light
deviation
amount
detecting
toner image
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
JP1139389U
Other languages
English (en)
Other versions
JPH08679Y2 (ja
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 JP1989011393U priority Critical patent/JPH08679Y2/ja
Publication of JPH02102570U publication Critical patent/JPH02102570U/ja
Application granted granted Critical
Publication of JPH08679Y2 publication Critical patent/JPH08679Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例の機能ブロツク図、
第２図は光量調整および利得補正のための回路図
、第３図は電子写真複写装置の要部を示す図であ
る。 １……感光材、２２……トナー濃度検出装置ヘ
ツド部、２４……発光手段、２５……反射光受光
手段、２６……ゲイン付与手段、２７……第１偏
差検出手段、２８……ゲイン設定手段、２９……
モニタ用受光手段、３０……第２偏差検出手段、
３１……光量調整手段、３１ａ……アナログスイ
ツチＩＣ、３２……ＣＰＵボード、３３……オペ
アンプ。

Claims (1)

  1. 【実用新案登録請求の範囲】 感光材およびトナー像に光を照射するための発
    光手段と、 該発光手段の光量を検出するモニタ手段と、 予め設定された基準光量に対する前記モニタ手
    段の検出結果の偏差を検出する第１の偏差検出手
    段と、 第１の偏差検出手段で検出された偏差に基づい
    て、該偏差を解消するように、前記発光手段の光
    量を変化させる光量調整手段と、 前記発光手段から感光材およびトナー像に照射
    された光の反射光を検出する受光手段と、 該受光手段によつて検出された感光材からの反
    射光の光量および予め設定された基準値の偏差を
    検出する第２の偏差検出手段と、 前記受光手段で検出されたトナー像からの反射
    光の受光信号を、第２の偏差検出手段で検出され
    た偏差に応じた補正値で補正する手段とを具備し
    たことを特徴とする複写機のトナー像濃度検出装
    置。
JP1989011393U 1989-02-03 1989-02-03 複写機のトナー像濃度検出装置 Expired - Fee Related JPH08679Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989011393U JPH08679Y2 (ja) 1989-02-03 1989-02-03 複写機のトナー像濃度検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989011393U JPH08679Y2 (ja) 1989-02-03 1989-02-03 複写機のトナー像濃度検出装置

Publications (2)

Publication Number Publication Date
JPH02102570U true JPH02102570U (ja) 1990-08-15
JPH08679Y2 JPH08679Y2 (ja) 1996-01-10

Family

ID=31219908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989011393U Expired - Fee Related JPH08679Y2 (ja) 1989-02-03 1989-02-03 複写機のトナー像濃度検出装置

Country Status (1)

Country Link
JP (1) JPH08679Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63110476A (ja) * 1986-10-29 1988-05-14 Konica Corp トナ−濃度制御用センサの汚れ補償装置
JPS642074A (en) * 1987-06-25 1989-01-06 Ricoh Co Ltd Image control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63110476A (ja) * 1986-10-29 1988-05-14 Konica Corp トナ−濃度制御用センサの汚れ補償装置
JPS642074A (en) * 1987-06-25 1989-01-06 Ricoh Co Ltd Image control method

Also Published As

Publication number Publication date
JPH08679Y2 (ja) 1996-01-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees