Abstract: A printing system includes a host which includes a storage having one or more folders, establishes one of the folders as a target folder, and generates path information of the target folder, and an image forming apparatus to acquire a list of image files stored in the target folder based on the path information, to request thumbnail images corresponding to the image files on the list from the host, and to display the thumbnail images on a predetermined display unit by downloading the thumbnail images from the host. The host converts the image files stored in the target folder into the thumbnail images and transmits the thumbnail images to the image forming apparatus, and the image forming apparatus selects at least one among the thumbnail images and prints an image file corresponding to the selected thumbnail image by downloading the image file from the host.

Abstract: A digital image signal processing method, a digital image signal processing apparatus, and a computer readable medium having recorded thereon the method, the method including generating a first display image, in which a plurality of first images having a first size are arranged in a single screen image; displaying the first display image; selecting at least one of the plurality of first images in the first display image; generating a second display image, in which a second image that corresponds to the selected first image and has a second size larger than the first size is arranged in a display area of the selected first image; and displaying the second display image.

Abstract: An office automation (OA) device and methods of installing, reinstalling, and upgrading a driver of the OA device. The OA device includes a class information storage unit to store class information based on which a host device identifies the OA device and to output class information when being accessed by the host device; an program storage unit to store a driver program and a driver installation program for the OA device; and a control unit to control the host device to access the program storage unit when the class information read from the class information storage unit by the host device is a CD-ROM class, to control the OA device to perform inherent functions of the OA device when the class information is an inherent class of the OA device, and to change the class information set in the class information storage unit to a predetermined class in response to completion of installation of the OA device driver or an external input.

Abstract: A printing system includes a host which includes a storage having one or more folders, establishes one of the folders as a target folder, and generates path information of the target folder, and an image forming apparatus to acquire a list of image files stored in the target folder based on the path information, to request thumbnail images corresponding to the image files on the list from the host, and to display the thumbnail images on a predetermined display unit by downloading the thumbnail images from the host. The host converts the image files stored in the target folder into the thumbnail images and transmits the thumbnail images to the image forming apparatus, and the image forming apparatus selects at least one among the thumbnail images and prints an image file corresponding to the selected thumbnail image by downloading the image file from the host.