Patent attributes
This invention has as its object to provide an image scanning system which has both a printer function and image scanning function but allows simple operation for scanning an image. In order to achieve this object, a system has a print device with a scanner function, which allows printing and scanning by selectively mounting a print head and scan head on a head mounting portion, and a host computer which is connected to the print device to be able to communicate with it, and includes a scanner driver which can control scanning of the print device. When the scan head is mounted on the head mounting portion in a state an original to be scanned is prepared on the print device, the print device communicates with the host computer to start the scanner driver and to read an image of the original into the scanner driver.