JPH0239252U - - Google Patents
Info
- Publication number
- JPH0239252U JPH0239252U JP11783588U JP11783588U JPH0239252U JP H0239252 U JPH0239252 U JP H0239252U JP 11783588 U JP11783588 U JP 11783588U JP 11783588 U JP11783588 U JP 11783588U JP H0239252 U JPH0239252 U JP H0239252U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- sensor
- recording device
- electrostatic recording
- mirror
- 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
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は画像記録装置の例として複写機の構成
と、トナー濃度読み取りの制御系を示した構成図
。第２図は本考案の構成を示したもので、センサ
回路駆動電圧と基準電圧の供給方法のブロツク回
路図、第３図はその具体的回路接続を示したブロ
ツク・回路図である。また第４図は従来のセンサ
駆動電圧と判断回路への基準電圧の供給方法を示
したブロツク図である。
１……センサ回路、２……判断回路、３……投
光器、４……電圧変換部、１１……露光ランプ、
１２……第１ミラー、１３……第２ミラー、１４
……第３ミラー、１５……主レンズ、１６……第
４ミラー、１７……スリツト、１８……現像スリ
ーブ、１９……現像ユニツト、２１……トナーホ
ツパー、２２……トナー補給ローラ、２３……帯
電極、２４……カセツト、２５……第１ミラーユ
ニツト、２６……第２ミラーユニツト、２７……
転写極、２８……分離極、２９……定着装置、３
１……原稿台、３２……スケール板、３３……原
稿カバー、３４……標準票板、４１……第１給紙
ローラ、４２……第２給紙ローラ、５０……ＬＥ
Ｄアレイ、Ｄ……原稿、Ｍ……接続中点、Ｒ１，
Ｒ２……抵抗、Ｖａ……駆動電圧、Ｖｓ……基準
電圧、Ｖｍ……中点電圧。
FIG. 1 is a configuration diagram showing the configuration of a copying machine as an example of an image recording apparatus and a control system for reading toner density. FIG. 2 shows the configuration of the present invention, and is a block circuit diagram showing the method of supplying the sensor circuit drive voltage and reference voltage, and FIG. 3 is a block circuit diagram showing the specific circuit connections. FIG. 4 is a block diagram showing a conventional method of supplying a sensor drive voltage and a reference voltage to a judgment circuit. DESCRIPTION OF SYMBOLS 1... Sensor circuit, 2... Judgment circuit, 3... Floodlight, 4... Voltage converter, 11... Exposure lamp,
12...first mirror, 13...second mirror, 14
...Third mirror, 15...Main lens, 16...Fourth mirror, 17...Slit, 18...Developing sleeve, 19...Developing unit, 21...Toner hopper, 22...Toner supply roller, 23... ...Charging electrode, 24...Cassette, 25...First mirror unit, 26...Second mirror unit, 27...
Transfer pole, 28... Separation pole, 29... Fixing device, 3
1... Original table, 32... Scale plate, 33... Original cover, 34... Standard form board, 41... First paper feed roller, 42... Second paper feed roller, 50... LE
D array, D...original, M...connection midpoint, R1,
R2...resistance, Va...drive voltage, Vs...reference voltage, Vm...midpoint voltage.
Claims (1)
像装置によつて現像し、得られたトナー像の反射
濃度を読み取つてトナー濃度の制御を行う静電記
録装置において、前記反射濃度を読み取るセンサ
回路の、そのセンサ信号に対する判断回路の基準
電圧をセンサ回路の電源より得るようにしたこと
を特徴とする静電記録装置。 In an electrostatic recording device, a latent image on a standard plate formed on an image carrier is developed by a developing device, and the toner density is controlled by reading the reflection density of the obtained toner image. 1. An electrostatic recording device characterized in that a reference voltage of a judgment circuit for a sensor signal of a sensor circuit that reads the sensor signal is obtained from a power source of the sensor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11783588U JPH0239252U (en) | 1988-09-06 | 1988-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11783588U JPH0239252U (en) | 1988-09-06 | 1988-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0239252U true JPH0239252U (en) | 1990-03-15 |
Family
ID=31361642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11783588U Pending JPH0239252U (en) | 1988-09-06 | 1988-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0239252U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835565A (en) * | 1981-08-26 | 1983-03-02 | Matsushita Electric Ind Co Ltd | Toner density controller |
-
1988
- 1988-09-06 JP JP11783588U patent/JPH0239252U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835565A (en) * | 1981-08-26 | 1983-03-02 | Matsushita Electric Ind Co Ltd | Toner density controller |
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