| 摘要 |
PROBLEM TO BE SOLVED: To enhance resolution in case of printing via an interval and prevent broken characters in case of recording in black solid by using a small ink liquid drop only at a first time and large ink liquid drops at a second time and thereafter when the ink liquid drops are jetted as jet pulse signals continuously. SOLUTION: Ink liquid drops are made small when only one drop is jetted and drops are jetted via an interval ((a), (c)). (b) indicates that only first one of ink liquid drops jetted continuously is made small and a second and thereafter drops are made large (1-5 designate numbers of the continuous dots). Fine parts of characters, patterns, etc., can be printed beautifully with enhanced resolution. When the dots are to be recorded continuously in a paint pattern (black solid), generation of broken characters and a decrease in printing density are prevented, thus enabling high-quality printing. |
