JPS5734959A - Manufacture of printing plate by photogravure engraving - Google Patents
Manufacture of printing plate by photogravure engravingInfo
- Publication number
- JPS5734959A JPS5734959A JP10930380A JP10930380A JPS5734959A JP S5734959 A JPS5734959 A JP S5734959A JP 10930380 A JP10930380 A JP 10930380A JP 10930380 A JP10930380 A JP 10930380A JP S5734959 A JPS5734959 A JP S5734959A
- Authority
- JP
- Japan
- Prior art keywords
- original plate
- photogravure
- dot
- current
- scanner
- 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
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
PURPOSE: To facilitate photogravure process by using a dot original plate for offset printing or the like, by a method wherein an output correlated to the proportion of dot area in a predetermined area on a dot matrix original plate is generated by a scanner, and a plate material is engraved by an electronic engraving machine while utilizing the output from the scanner.
CONSTITUTION: The dot matrix original plate 1 is scanned with a light spot by a scanning head, and the transmitted light or reflected light is inputted as a photoelectric current into an interface device 6. The device 6 converts the inputted photoelectric current into an electric current suitable for obtaining a continuous tone image and the thus corrected current is passed through the electronic engraving machine 5. A contacting needle 9 of the machine 5 is driven by the corrected current to engrave the plate material, thereby obtaining a photogravure original plate 2. The interface device 6 is provided with a controlling part 11, a line memory part 12, a calculating part 13, a buffer circuit 14 and an averaging circuit part 15 which are wired.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10930380A JPS5734959A (en) | 1980-08-11 | 1980-08-11 | Manufacture of printing plate by photogravure engraving |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10930380A JPS5734959A (en) | 1980-08-11 | 1980-08-11 | Manufacture of printing plate by photogravure engraving |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5734959A true JPS5734959A (en) | 1982-02-25 |
Family
ID=14506764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10930380A Pending JPS5734959A (en) | 1980-08-11 | 1980-08-11 | Manufacture of printing plate by photogravure engraving |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5734959A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5367504A (en) * | 1976-10-21 | 1978-06-16 | Kyodo Printing Co Ltd | Halftone gravure engraving method |
-
1980
- 1980-08-11 JP JP10930380A patent/JPS5734959A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5367504A (en) * | 1976-10-21 | 1978-06-16 | Kyodo Printing Co Ltd | Halftone gravure engraving method |
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