Image forming device, and method of managing data

A method of managing data using an image forming device executing a plurality of applications and having a processor to execute the method, an image reading unit, an image data memory, a display data memory, and a display unit, comprising the steps of:

• instructing the image reading unit to read image data, and storing the image data in the image data memory according to a request from one of the plurality of applications;
• generating a plurality of display data corresponding to the image data stored in the image data memory, and storing the plurality of display data in the display data memory according to requests from the plurality of applications, said display image data storage being configured to store identification information of the display data that is generated and stored according to each request from the plurality of applications in association with identification information of each of the plurality of applications, said display data memory being inaccessible from the plurality of applications;
• displaying the display data on the display unit according to a request from the one of the plurality of applications;
• and
• deleting only the display data associated with the identification information of the one of the plurality of applications that sends a termination notice of use of the display data from the display data memory.

A non-transitory computer program product for executing a method by an image forming device, said image forming device executing a plurality of applications and having an image reading unit, an image data memory, a display data memory, and a display unit, said method comprising the steps of:

• instructing the image reading unit to read image data, and storing the image data in the image data memory according to a request from one of the plurality of applications;
• generating a plurality of display data corresponding to the image data stored in the image data memory, and storing the plurality of display data in the display data memory according to requests from the plurality of applications, said display image data memory being configured to store identification information of the display data that is generated and stored according to each request from the plurality of applications in association with identification information of each of the plurality of applications, said display data memory being inaccessible from the plurality of applications;
• displaying the display data on the display unit according to a request from the one of the plurality of applications;
• and
• deleting only the display data associated with the identification information of the one of the plurality of applications that sends a termination notice of use of the display data from the display data memory.