| 摘要 |
PROBLEM TO BE SOLVED: To prevent a defect due to an ROP processing at high speed with a small amount of memory capacity. SOLUTION: An ROP pattern detecting part 10 monitors a plotting object which is inputted to a plotting data input part 2, and detects ROP patterns in the single plotting object where the defect occurs by the ROP processing, or the plurality of continuous plotting objects. An ROP pattern data converting part 11 converts the plotting attribute of the plotting object, so that the defect is not caused even when the plotting processing is performed as it is in response to the ROP patterns detected by the ROP pattern detecting part 10. COPYRIGHT: (C)2004,JPO
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