JPS6235348U - - Google Patents
Info
- Publication number
- JPS6235348U JPS6235348U JP12717085U JP12717085U JPS6235348U JP S6235348 U JPS6235348 U JP S6235348U JP 12717085 U JP12717085 U JP 12717085U JP 12717085 U JP12717085 U JP 12717085U JP S6235348 U JPS6235348 U JP S6235348U
- Authority
- JP
- Japan
- Prior art keywords
- magnification
- reference voltage
- exposure
- control device
- copying machine
- 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 5
- 238000000034 method Methods 0.000 description 1
Landscapes
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Description
第１図はこの考案に係る可変倍率型複写機の露
光量制御装置の一実施例を示すブロツク図、第２
図は実施例に係る傾き補正係数の設定方法を示す
説明図、第３図は実施例に係る基準電圧設定手段
の作動を説明するフローチヤート、第４図は従来
における可変倍率型複写機の露光量制御装置の一
例を示す説明図、第５図は電源内に組込まれた制
御回路の一例を示すブロツク図、第６図は基準電
圧と露光量との相互関係を示すグラフ図、第７図
は複写倍率と基準電圧との関係を示すグラフ図で
ある。
〔符号の説明〕、４……フラツシユ光源（露光
用光源）、１０……基準電圧設定手段、２０……
電源。
FIG. 1 is a block diagram showing an embodiment of the exposure amount control device for a variable magnification type copying machine according to this invention, and FIG.
FIG. 3 is an explanatory diagram showing a method for setting a tilt correction coefficient according to an embodiment, FIG. 3 is a flowchart explaining the operation of a reference voltage setting means according to an embodiment, and FIG. 4 is an exposure diagram of a conventional variable magnification copying machine. FIG. 5 is a block diagram showing an example of a control circuit built into a power supply; FIG. 6 is a graph showing the correlation between reference voltage and exposure amount; FIG. is a graph diagram showing the relationship between copy magnification and reference voltage. [Explanation of symbols], 4...Flash light source (light source for exposure), 10...Reference voltage setting means, 20...
power supply.
Claims (1)
する基準電圧を印加し、この基準電圧に応じて上
記露光用光源からの露光量を制御するようにした
可変倍率型複写機の露光量制御装置において、基
準電圧設定手段が、基準倍率Ｍ０に対する基準電
圧をＶ０、設定すべき倍率をＭ、設定すべき基準
電圧をＶ、傾き補正係数をＫとした場合に、以下
の演算式（Ｙ） Ｖ＝Ａ（１＋Ｍ）２／（１＋Ｍ０）２−Ｋ 但し、Ａ＝Ｖ０＋Ｋ ……（Ｙ） に基づく演算を行い、各倍率に応じた基準電圧を
設定するように構成されていることを特徴とする
可変倍率型複写機の露光量制御装置。 (2) 上記傾き補正係数は拡大倍率時と縮小倍率
時とで異なるものに設定されていることを特徴と
する実用新案登録請求の範囲第１項記載の可変倍
率型複写機の露光量制御装置。[Scope of Claim for Utility Model Registration] (1) A reference voltage that changes according to the copying magnification is applied to the power supply of the exposure light source, and the amount of exposure from the exposure light source is controlled according to this reference voltage. In an exposure amount control device for a variable magnification copying machine, a reference voltage setting means sets a reference voltage for a reference magnification M 0 as V 0 , a magnification to be set as M, a reference voltage to be set as V, and a tilt correction coefficient as K. In this case, perform calculation based on the following calculation formula (Y) V=A(1+M) 2 /(1+M 0 ) 2 -K However, A=V 0 +K ...(Y) Based on the standard according to each magnification An exposure amount control device for a variable magnification copying machine, characterized in that it is configured to set a voltage. (2) The exposure amount control device for a variable magnification type copying machine as set forth in claim 1 of the utility model registration claim, characterized in that the tilt correction coefficient is set to be different for an enlargement magnification and a reduction magnification. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717085U JPS6235348U (en) | 1985-08-22 | 1985-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12717085U JPS6235348U (en) | 1985-08-22 | 1985-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235348U true JPS6235348U (en) | 1987-03-02 |
Family
ID=31021665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12717085U Pending JPS6235348U (en) | 1985-08-22 | 1985-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH055908Y2 (en) * | 1987-11-11 | 1993-02-16 |
-
1985
- 1985-08-22 JP JP12717085U patent/JPS6235348U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH055908Y2 (en) * | 1987-11-11 | 1993-02-16 |
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