PORTABLE PRINTER AND METHOD FOR CONTROLLING A PORTABLE PRINTER

摘要

The present invention relates to a portable printer and a method of outputting a problem image using a portable printer, which enables a user to save time by printing a problem image without copying or cutting a problem directly in order to write an incorrect answer note. The purpose. In order to achieve this object, the present invention provides a server for controlling a portable printer that outputs a problem image, a user device that requests output of a first problem image, a communication unit that communicates with the portable printer, and provides the first problem image. 1 A control unit that converts to digital data, searches for digital data matching the first digital data from a database unit, and sets it as second digital data, and a storage unit that stores digital data for a plurality of problem images. To do.