JPS6356630U

JPS6356630U -

Info

Publication number: JPS6356630U
Application number: JP15135686U
Authority: JP
Priority date: 1986-10-01
Filing date: 1986-10-01
Publication date: 1988-04-15

Description

[Brief explanation of drawings]

第１図は本考案による多色印刷機用見当制御装
置の一実施例の概略図、第２図はスタートマーク
と十字トンボの関係を示す模式図、第３図は見当
制御回路の一実施例を示すブロツクダイヤグラム
、第４図は十字トンボの一実施例を示す模式図、
第５図は印刷後の十字トンボの状態を示す模式図
、第６図、第７図は画像信号の状態を示す模式図
、第８図はＣＰＵにおける処理のフローチヤート
である。４２……ロータリーエンコーダ、５０……ライ
ンカメラ、１００……Ａ／Ｄコンバータ、６４…
…十字トンボ、１７０……ＣＰＵ。 Fig. 1 is a schematic diagram of an embodiment of a register control device for a multicolor printing press according to the present invention, Fig. 2 is a schematic diagram showing the relationship between a start mark and a cross register mark, and Fig. 3 is an embodiment of a register control circuit. 4 is a schematic diagram showing an example of a cross dragonfly,
FIG. 5 is a schematic diagram showing the state of cross register marks after printing, FIGS. 6 and 7 are schematic diagrams showing the state of image signals, and FIG. 8 is a flowchart of processing in the CPU. 42...Rotary encoder, 50...Line camera, 100...A/D converter, 64...
...Cross dragonfly, 170...CPU.

Claims

[Scope of utility model registration request]

The amount of misregistration and misregistration correction direction of other colors with respect to the standard color are detected for each color, and based on the detection results, the plate cylinder of each color is moved to eliminate the misregistration with the standard color, thereby improving the registration of all colors. In the registration marks of a register control device for a multicolor printing press, the four-color cross register marks printed with the pattern are used as registration marks, and the four color cross register marks are the reference color registration marks. is a complete cross shape, and the other color registration marks are cross shapes having missing portions at different positions.