| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing method which can improve the quality of a printed matter. SOLUTION: A doctor unit 33 retains an ink I<SB>M</SB>charged in a picture element part 30a, and scrapes the excess ink I<SB>M</SB>on a non-picture element part 30b. While a roll 351 moves along a cam curved line part 350a, a pressure cylinder 31 pressurizes a web W to a plate cylinder 30, and transfers the ink I<SB>M</SB>in the picture element part 30a to the web W. When the roll 351 moves along a cam curved part 350b, the pressure cylinder 31 separates from the plate cylinder 30 together with the web W. For this, the scraped leakage ink L<SB>M</SB>adhered onto the non-picture element part 30b does not transfer to the web W. Since the cam curved part 350b is a steep slope part, the web W quickly separates from the rear end side edge of the picture element part 30a. Therefore, the sharpness of the rear end side edge of the ink I<SB>M</SB>is improved. COPYRIGHT: (C)2008,JPO&INPIT
|
