JP2891014B2 - Checking device of optical detection means for photo processor - Google Patents
Checking device of optical detection means for photo processorInfo
- Publication number
- JP2891014B2 JP2891014B2 JP1143093A JP1143093A JP2891014B2 JP 2891014 B2 JP2891014 B2 JP 2891014B2 JP 1143093 A JP1143093 A JP 1143093A JP 1143093 A JP1143093 A JP 1143093A JP 2891014 B2 JP2891014 B2 JP 2891014B2
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- optical detection
- optical
- detection means
- light
- 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.)
- Expired - Lifetime
Links
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Projection-Type Copiers In General (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Photographic Developing Apparatuses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、写真処理機における
フィルム検出手段、ペーパ検出手段、レンズ検出手段な
どの光学検出手段の汚れ等をチェックする装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for checking the optical detecting means such as a film detecting means, a paper detecting means, and a lens detecting means in a photographic processor for contamination.
【０００２】[0002]
【従来の技術】写真焼付装置やフィルム現像装置などの
写真処理機には、写真処理を自動的に行なうため処理工
程の種々の位置に光学検出手段が設けられている。例え
ば写真焼付装置では、マガジン検出手段、ミラートンネ
ル検出手段、ネガマスク検出手段、ペーパマスク検出手
段、ペーパ幅検出手段、パーフォレーション検出手段、
画面検出手段、ランプボックス検出手段、ＮＤフィルタ
位置検出手段、レンズ検出手段、カッタフォーム検出手
段、ポンチ孔検出手段、ポンチ位置検出手段などがあ
る。フィルム現像装置ではフィルム検出手段などであ
る。2. Description of the Related Art In a photographic processing machine such as a photographic printing apparatus or a film developing apparatus, optical detection means are provided at various positions in a processing step for automatically performing photographic processing. For example, in a photo printing apparatus, a magazine detecting unit, a mirror tunnel detecting unit, a negative mask detecting unit, a paper mask detecting unit, a paper width detecting unit, a perforation detecting unit,
There are a screen detector, a lamp box detector, an ND filter position detector, a lens detector, a cutter form detector, a punch hole detector, a punch position detector, and the like. In a film developing device, it is a film detecting means.
【０００３】上記光学検出手段は、発光素子と受光素子
との一対を別々に又は一体に設けたものから成るが、こ
れらを長期間使用した場合にほこり等による汚れが付着
するため、定期的に又は誤動作発生時に清掃が行なわれ
る。この清掃は、ブロアーブラシを使って発光・受光素
子面に付着したゴミ、ほこりを吹き飛ばすのが一般的で
ある。The above-mentioned optical detecting means is composed of a pair of a light emitting element and a light receiving element provided separately or integrally. However, when these are used for a long period of time, dirt such as dust adheres to the optical detecting element. Alternatively, cleaning is performed when a malfunction occurs. Generally, this cleaning uses a blower brush to blow off dust and dirt attached to the light emitting / receiving element surface.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
たように写真処理機には多数の光学検出手段が使用され
ており、実際には多数の光学検出手段をもれなく清掃す
るのは困難であり、誤動作によりトラブルが生じると処
理が一時停止し、ペーパのロス等が生じる。However, as described above, a large number of optical detecting means are used in a photographic processor, and in practice, it is difficult to clean a large number of optical detecting means without fail, and a malfunction occurs. If a trouble occurs, the processing is temporarily stopped, and paper loss or the like occurs.
【０００５】又、いずれかの光学検出手段が誤動作、故
障した場合に、それがどの光学検出手段であるかは単に
ブロアーブラシで汚れ等を吹き飛ばすだけでは知ること
ができない。Further, when any of the optical detecting means malfunctions or breaks down, it is not possible to know which optical detecting means it is simply by blowing off dirt or the like with a blower brush.
【０００６】この発明は、上述した従来の光学検出手段
の保守点検の現状に留意して、光学検出手段の受光素子
にゲインを可変とする手段を設けることによって光学検
出手段の汚れに対する検出をし易くした光学検出手段の
チェック装置を提供することを目的とするものである。[0006] The present invention, in mind the current state of maintenance of the conventional optical detection means described above, the light receiving element of the optical detection means
It is an object to provide a checking apparatus of the optical detecting means which facilitate the detection for contamination of the optical detection means by a gain providing means for varying the.
【０００７】[0007]
【課題を解決するための手段】この発明は、上記課題を
解決する手段として写真処理機における処理工程の種々
の位置に設けられる発光手段と受光手段から成る光学検
出手段を駆動する駆動回路に受光手段のゲインを可変と
する可変手段を設け、上記駆動回路を制御する制御手段
に受光手段の検出の良否を判定し汚れを検出する判定手
段を設け、制御手段から指令信号を可変手段へ送り、受
光手段のゲインを減少させて光学検出手段の良否をチェ
ックするようにして成る写真処理機用光学検出手段のチ
ェック装置としたのである。SUMMARY OF THE INVENTION The present invention, receiving the drive circuit for driving the optical detecting means comprising a light emitting means and light receiving means provided at various positions of the processing steps in the photographic processor as a means for solving the above problems Control means for providing a variable means for changing the gain of the optical means and controlling the drive circuit
Determining the hand for detecting a determined stains the quality of the detection of the light receiving means
A step is provided to send a command signal from the control means to the variable
Check the quality of the optical detection means by reducing the gain of the optical means.
This is a check device for optical detection means for a photographic processor which is configured to check.
【０００８】[0008]
【作用】上記の構成とした光学検出手段のチェック装置
は、受光手段のゲインを減少するように制御手段から指
令信号が可変手段に送られると、可変手段により受光手
段のゲインが減少制御される。発光手段、受光手段のい
ずれか又は両者に汚れ、故障があると受光手段では受光
量が減少する。従って受光手段のゲインを一定量減少さ
せておけば上記汚れ、故障が検出されることとなる。In the optical detection means checking device having the above-mentioned structure, when a command signal is sent from the control means to the variable means so as to reduce the gain of the light receiving means, the variable means controls the gain of the light receiving means to decrease. . If one or both of the light emitting means and the light receiving means are dirty or have a failure, the light receiving amount of the light receiving means decreases. Therefore, if the gain of the light receiving means is reduced by a certain amount, the above-mentioned dirt and failure will be detected.
【０００９】[0009]
【実施例】以下この発明の実施例について図面を参照し
て説明する。図１は一例として写真焼付機の各種光学検
出手段を制御する回路のブロック図である。電子制御回
路１０は、ディスプレイ１１とキーボード１２が付設さ
れており、ディスプレイ１１は光学検出手段の検出不良
のメッセージを表示し、キーボード１２はキー操作によ
りマニュアルでも検出状態のチェックを可能とするもの
である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a circuit for controlling various optical detection means of a photographic printer as an example. The electronic control circuit 10 has a display 11 and a keyboard 12 attached thereto. The display 11 displays a message indicating detection failure of the optical detection means, and the keyboard 12 enables a manual check of the detection state by key operation. is there.
【００１０】電子制御回路１０は、図示省略している
が、写真焼付機のフィルム搬送装置、ガイド、スキャ
ナ、露光用光源、調光フィルタなど種々の機能部品を制
御する電子制御回路であり、この制御回路内に下記の光
学検出手段の制御プログラムをも内蔵している。Although not shown, the electronic control circuit 10 is an electronic control circuit for controlling various functional components such as a film transport device of a photographic printer, a guide, a scanner, an exposure light source, and a light control filter. The control circuit also includes a control program for the following optical detection means.
【００１１】通常はこの電子制御回路１０により写真焼
付機を駆動する操作の開始時又はある一定時間の間隔に
セットされたタイマ（図示省略）により光学検出手段の
汚れ又は故障をチェックするように制御するが、前記キ
ーボードによりマニュアルで検出状態のチェックができ
ることは上述した通りである。１３は入出力ポート、１
４はバス回路、１５はＲＡＭ（ランダムアクセスメモ
リ）、１６はＲＯＭ（リードオンリメモリ）、１７はＣ
ＰＵ（中央演算処理ユニット）である。Normally, the electronic control circuit 10 is controlled so as to check the dirt or failure of the optical detecting means at the start of the operation of driving the photographic printing machine or by a timer (not shown) set at a certain time interval. However, as described above, the detection state can be manually checked using the keyboard. 13 is an input / output port, 1
4 is a bus circuit, 15 is RAM (random access memory), 16 is ROM (read only memory), 17 is C
It is a PU (Central Processing Unit).
【００１２】光学検出手段は、例えばＬＥＤの発光ダイ
オードを用いた発光素子１ａと、ｐｉｎ−ＰＤホトダイ
オードを用いた受光素子２ａの一対から成り、これらが
写真焼付機の種々の位置に設けられている。図中１ｎと
２ｎの組み合せによりこれら複数対の光学検出手段を示
している。受光素子２ａ……２ｎは、受光信号を増幅回
路５ａ……５ｎによりそれぞれ増幅して受光検出したこ
とを電子制御回路１０へ送り、検出状態をデイスプレイ
１１に表示する。The optical detecting means comprises a pair of a light emitting element 1a using, for example, an LED light emitting diode and a light receiving element 2a using a pin-PD photodiode, and these are provided at various positions of a photographic printer. . In the drawing, a combination of 1n and 2n indicates these plural pairs of optical detecting means. The light-receiving elements 2a... 2n respectively amplify the light-receiving signals by the amplifier circuits 5a.
【００１３】発光素子１、受光素子２の電源電圧は、図
示のように定格電圧が加えられてい る。そして、受光素
子２の増幅回路５ａ……５ｎは、図２にその具体的な回
路例を示しているように、ゲインを可変とする制御信号
を電子制御回路から送るようにしている。図２におい
て、オペアンプ５Ｘはその帰還回路部にｒ 1 とｒ 2 を含
む並列回路を設け、その一方にはアナログスイッチ５Ｙ
を挿入したものから成る。 The power supply voltages of the light emitting element 1 and the light receiving element 2 are shown in FIG.
The rated voltage as shown is that have been made. And the light receiving element
The amplifier circuits 5a... 5n of the element 2 are shown in FIG.
As shown in the road example, a control signal that makes the gain variable
Is sent from the electronic control circuit. Figure 2
The operational amplifier 5X includes r 1 and r 2 in its feedback circuit.
A parallel circuit, one of which is an analog switch 5Y.
Is inserted.
【００１４】以上のような制御回路により光学検出手段
の汚れ又は故障の状態が次のようにしてチェックされ
る。まず、前述したようにマニュアル操作の時は、キー
ボード１２のキー操作により作動が開始される。又、フ
ルオート操作の時は、キー操作により写真焼付機の始業
点検モードを選択すると同時に、あるいは焼付作業の一
定時間間隔ごとに作動が開始される。With the above-described control circuit, the state of dirt or failure of the optical detecting means is checked as follows . First, when the manual operation is as described above, by Ri operation moving to the key operation of the keyboard 12 is started. At the time of full automatic operation, the operation is started at the same time as the start inspection mode of the photo printing machine is selected by a key operation or at regular time intervals of the printing operation.
【００１５】作動開始後、各種の光学検出手段の発光素
子１と受光素子２が遮光されていない状態となるように
し、通常の定格電圧に順次かえてそれぞれの光学検出手
段をチェック可能とし、それぞれの受光状態を確認す
る。次に、受光素子２の受光信号がオペアンプ５Ｘに送
られ、その出力が電子制御回路１０の入出力ポート１３
へ送られる。そして、受光素子２のゲインを低下させる
ため、電子制御回路１０からの制御信号によりアナログ
スイッチ５Ｙを作動させｒ 2 を含む帰還回路をＯＮとし
てオペアンプ５Ｘのゲインを低減させる。この状態で受
光素子２がセンサとして正常動作をするかを判定し、Ｎ
Ｏであれば光学検出手段のいずれかが汚れているものと
判断し、エラー表示１をディスプレイ１１に表示する。
この表示は、例えば“センサの検出低下→センサを清掃
して下さい”という内容にする。又、同時に警報を鳴ら
すようにしてもよい（図示省略）。[0015] After operation start, as the light-emitting element 1 and the light receiving element 2 of each type of optical detection means in a state that is not shielded, sequentially enables checking the respective optical detecting means instead of the normal rated voltage, Check each light receiving condition. Next, the light receiving signal of the light receiving element 2 is sent to the operational amplifier 5X.
The output is input / output port 13 of electronic control circuit 10.
Sent to Then, the gain of the light receiving element 2 is reduced.
Therefore, the control signal from the electronic control circuit 10
A feedback circuit including a r 2 actuates the switches 5Y and O N
To reduce the gain of the operational amplifier 5X. In this state, it is determined whether the light receiving element 2 operates normally as a sensor.
If O is determined that any of the optical detection means is dirty, and displays an error display 1 on the display 11.
This display has, for example, a content of “sensor detection drop → clean the sensor”. Also, an alarm may be sounded at the same time (not shown).
【００１６】この実施例では、発光素子１、受光素子２
自体の電圧、電流は変化しないが、そのいずれかが汚れ
た場合は受光素子２の受光量が減少する。従って、増幅
回路５のゲインを所定値に減少させた状態では発光側又
は受光側のいずれかの汚れ、故障により受光量が大きく
減少するため受光回路が正常に動作しなくなるから、こ
れによって汚れをチェックできることになる。In this embodiment, a light emitting element 1 and a light receiving element 2
Although the voltage and current of the device itself do not change, if any of them becomes dirty, the amount of light received by the light receiving element 2 decreases. Accordingly, the light emitting side also has a gain of the amplifying circuit 5 in a state of being reduced to a predetermined value
Indicates that the amount of received light is large due to any dirt on the light receiving side or failure.
Since reduced because the light receiving circuit does not operate normally, so that can check Re fouling by thereto.
【００１７】[0017]
【効果】以上詳細に説明したように、この発明の光学検
出手段のチェック装置では受光手段のゲインを可変とし
ゲインを減少させて判定手段により検出の良否の判定を
するようにしたから、必要に応じてマニュアルで又は定
期的に、あるいは始業時に自動的に指令信号を光学検出
手段に与えることによって光学検出手段の汚れを検出で
きることとなる。多数の光学検出手段が設けられている
ときは、それぞれを順次検出することによってどの光学
検出手段が汚れているかを特定できるから、汚れを清掃
する際にもれがなくなり、清掃時間も少なくて済み、予
め清掃が行なわれるため汚れによる種々のトラブルを防
止できるなど種々の利点が得られる。[Effect] As described above in detail, the check device of the optical detection means of the invention the gain of the light receiving means is variable
It is so arranged that the quality determination of the detection by the determination means reduces the gain, optical detection by providing manual or periodically as needed, or automatically command signal when opening the optical detection means This means that contamination of the means can be detected. When a large number of optical detecting means are provided, it is possible to identify which optical detecting means is dirty by sequentially detecting each of them, so that there is no leakage when cleaning the dirt, and the cleaning time is reduced. Since cleaning is performed in advance, various advantages such as prevention of various troubles due to dirt can be obtained.
【図１】第１実施例の光学検出手段の制御回路のブロッ
ク図FIG. 1 is a block diagram of a control circuit of an optical detection unit according to a first embodiment.
【図２】増幅回路の具体例の図FIG. 2 is a diagram of a specific example of an amplifier circuit.
１、１ａ、１ｎ 発光素子 ２、２ａ、２ｎ 受光素子 ５、５ａ、５ｎ 増幅回路 １０ 電子制御回路 １１ ディスプレイ １２ キーボード １３ 入出力ポート １７ ＣＰＵ 1, 1a, 1n Light emitting element 2, 2a, 2n Light receiving element 5, 5a, 5n Amplifying circuit 10 Electronic control circuit 11 Display 12 Keyboard 13 Input / output port 17 CPU
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｇ０３Ｄ 13/00 Ｇ０３Ｄ 13/00 15/04 15/04 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI G03D 13/00 G03D 13/00 15/04 15/04
Claims (1)
置に設けられる発光手段と受光手段から成る光学検出手
段を駆動する駆動回路に受光手段のゲインを可変とする
可変手段を設け、上記駆動回路を制御する制御手段に受
光手段の検出の良否を判定し汚れを検出する判定手段を
設け、制御手段から指令信号を可変手段へ送り、受光手
段のゲインを減少させて光学検出手段の良否をチェック
するようにして成る写真処理機用光学検出手段のチェッ
ク装置。1. A provided a variable means for the gain and variable light receiving means to a driving circuit for driving the optical detection means consisting of a variety of light emitting means and light receiving means provided in the position of the processing steps in the photographic processor, the drive determination means for detecting a determined stains the quality of detection of the receiving <br/> light means that control means to control the circuit
To send a command signal from the control means to the variable means,
Check the quality of the optical detection means by reducing the step gain
A checking device for an optical detecting means for a photographic processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1143093A JP2891014B2 (en) | 1993-01-27 | 1993-01-27 | Checking device of optical detection means for photo processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1143093A JP2891014B2 (en) | 1993-01-27 | 1993-01-27 | Checking device of optical detection means for photo processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06222466A JPH06222466A (en) | 1994-08-12 |
| JP2891014B2 true JP2891014B2 (en) | 1999-05-17 |
Family
ID=11777863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1143093A Expired - Lifetime JP2891014B2 (en) | 1993-01-27 | 1993-01-27 | Checking device of optical detection means for photo processor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2891014B2 (en) |
-
1993
- 1993-01-27 JP JP1143093A patent/JP2891014B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06222466A (en) | 1994-08-12 |
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