DATA UPDATE DEVICE, AND PRINTER DEVICE

摘要

The present invention provides a data updating device with which the amount of time required to update data in a flash memory can be shortened and reductions in the life of the flash memory can be suppressed. The data updating device modifies a description content of record unit data that are described in a markup language and stored in a flash memory 14, and includes: reserved word modifying means for, when a request is issued to update a description sandwiched between reserved words and corresponding to a record, modifying a bit of a binary representation of character strings constituting the reserved words from 1 to 0 (S3); and data adding means for additionally recording, in the flash memory, the record corresponding to the description sandwiched between the reserved words and including the part modified in accordance with the request (S4).