Patent ID: 7864358

Claim:
An image data control device comprising: a nonvolatile storage device for sequentially storing an input job including image data having plural pages of images divided by page; a reader for sequentially reading the image data and writing the image data onto a volatile memory from the nonvolatile storage device; a detector for detecting said nonvolatile storage device's usage status whenever a page of the image data is read from the nonvolatile storage device; a controller for providing control for deleting from said nonvolatile storage device one page of the page images, which was read immediately before a page that was last read, among the image data, when it is judged that said nonvolatile storage device's usage amount has exceeded a specified usage limit based on said detector's detection result; and a job deletion unit for deleting a specified job, which is already stored in the nonvolatile storage device, from said nonvolatile storage device, when it is judged that said nonvolatile storage device's usage amount has exceeded a specified usage limit after executing the input job.