| 摘要 |
PROBLEM TO BE SOLVED: To provide a printer controller capable of partially updating software without resetting the entire device when the software is partially updated by dispensing with mounting of a large capacity memory by performing deletion, addition and update when they are necessary without making codes and data which are not constantly required resident in the memory. SOLUTION: The memory is efficiently used by dividing a software main body part of this printer controller by every function, making the software main body part into modules as relocatable objects to be relocated on the memory by setting priority of using the memory, preparing a basic control part to manage the module and a memory management table to mange the memory and using each module by loading it on the memory dynamically secured from a nonvolatile memory or a nonvolatile storage medium if necessary.
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