| 摘要 |
PROBLEM TO BE SOLVED: To speedily perform stable page printing by using a page printer which has small mounted memory capacity. SOLUTION: When a user indicates print execution (S1), CMYKX data are generated from an intermediate code through RGBX data and compressed (S2 to S5). The size of the CMYK data is compared with the memory size of the printer to decide whether the page printing is completed normally (S7 to S9). When the memory is deficient, notice of that deficiency is given to the user and the CMYKX data are compressed (S12 to S15) after user's acknowledgement is obtained. An attribute plane X of each color where print setting information is recorded is reversibly compressed and a plane CMYK of each color is irreversibly compressed by discarding the low-order 4 bits of each dot. Consequently, the data size is reduced and normal printing can be carried out. |
