Data printing system and data protection method thereof

Abstract

A data printing system and data protection method thereof are provided. The system includes a data output device and a data printing device. The data output device transfers data into a printing file that includes a plurality of file blocks. Also, the data output device sequentially classifies the file blocks into a plurality of sections with a preset number, and respectively generates a plurality of checksums according to the file blocks in each section. The data output device respectively appends the checksums to the sections and sequentially transmits the sections. The data printing device is connected to the data output device through a connecting interface, receives the sections and examines whether the file blocks in each section are correct according to the checksum of each section respectively. When the file blocks of each section are correct, the data printing device executes a printing job corresponding to the section.

Dependencies are inferred from the claim text.