| abstract |
(57) [Summary] [PROBLEMS] To provide a lithographic printing method capable of coping with digital image data and capable of printing a large number of inexpensive, high-speed, and clear images. A printing plate is formed by forming an image directly on a plate material mounted on a plate cylinder of a printing press by an ink jet method in which an oil-based ink is discharged using an electrostatic field based on a signal of image data. A lithographic printing method and apparatus for performing lithographic printing, wherein the printing press has a hood. |