Patent ID: 7990566

Claim:
An image forming device to which an external storage storing print data files for direct printing is detachably connectable, the image forming device comprising: a selection unit configured to allow a user to select desired print data files to be printed from among the print data files stored in the external storage; a processing unit; non-transitory computer readable media storing instructions therein, which when executed by the processing unit, cause the image forming device to provide: a file list generating unit configured to generate a list of the desired print data files selected by the user, the list of the desired print data files including an order of the desired print data files; a page arrangement unit configured to arrange each page of the desired print data files on each recording sheet based on the list of the desired print data files, a print mode representing an arrangement of pages of the desired print data files on the recording sheets, and a total number of pages of the desired print data files; a blank page generating unit configured to generate blank pages to be added to complete the arrangement of pages of the print data files with respect to the recording sheets; and an image data generating unit configured to generate image data, the image data generating unit retrieving page data based on the arrangement of pages and converting the retrieved page data to image data, subsequently; and an image data printing unit configured to print the image data.