Patent ID: 8526071

Claim:
An image scanning device, comprising: a housing with an entrance and an exit; a first driving roller set disposed in the housing; an entrance sensor disposed between the entrance and the first driving roller set; an image sensor, a reflective light source and a transmissive light source disposed between the first driving roller set and the exit, wherein the image sensor and the reflective light source are located on one side of the path from the entrance to the exit, and the transmissive light source corresponds to the image sensor and located on the other side of the path from the entrance to the exit; a control module, wherein the control module is used for receiving and processing the signals outputted from the entrance sensor and the image sensor to control the operation of the image sensor, the first driving roller set, the reflective light source and the transmissive light source; a carriage holder formed by two transparent plastic films, wherein a to-be-scanned object is held between the two transparent plastic films, and the carriage holder has a message area and a holding area, the information area is loaded with scan mode information; the image sensor obtains and sends the scan mode information to the control module, and the control module controls the scan mode or scan parameter of the image scanning device according to the scan mode information.