Abstract: An apparatus for printing an image which is stored on an optical disk is read by a scanner. A plurality of images read out from the optical disk are edited to form an abstract image on the basis of a predetermined unit (e.g., one page), and code data (i.e., retrieval data) is added to the abstract image. The resultant image, including both the abstract image and the code data, is printed on a sheet. The code data is extracted from the printed image, and desired images are retrieved from the optical disk on the basis of the code data.

Abstract: An apparatus for printing an image which is stored on an optical disk is read by a scanner. A plurality of images read out from the optical disk are edited to form an abstract image on the basis of a predetermined unit (e.g., one page), and code data (i.e., retrieval data) is added to the abstract image. The resultant image, including both the abstract image and the code data, is printed on a sheet. The code data is extracted from the printed image, and desired images are retrieved from the optical disk on the basis of the code data.

Abstract: A portable prepaid card is disclosed comprising a substrate on which a photoconductive layer, a liquid crystal layer, and a transparent electrode plate are built up in this order. When an optical image is radiated on the photoconductive layer through the liquid crystal layer, the exposed regions and the unexposed regions of the photoconductive layer have different volume resistances. In this state, if a predetermined voltage is applied from the outside between the electrode plate and the photoconductive layer, a visible image corresponding to the radiated optical image is fixed in the liquid crystal layer.

Abstract: A memory card includes a card body having an integrated circuit incorporated therein, and having a plurality of internal and external electric signal-connection terminals. The respective terminals of the integrated circuit are electrically connected to a plurality of electric signal-carrying members. The electric signal-carrying members have contact terminals for electrical connection to a card information-processing unit. The contact terminals are exposed on the upper surfce of the card body. The memory card has a protective cover which is slidably movable in two predetermined directions on the card surface. When the memory card is in use, the protective cover is movable in one of the two predetermined directions, whereby the respective contact terminals are exposed, and when the memory card is not being used, it is movable in the other direction, whereby it covers the respective contact terminals. The protective cover has a surface which faces the card body.

Abstract: A toner feeding device comprising a toner box having a toner outlet port formed at the bottom, a roller housed in the toner box in a manner to close the toner outlet port, and a toner catching plate biting the roller. The roller is formed of a porous elastic material and the toner catching plate is slidable such that the toner feeding rate can be controlled by suitably adjusting the position of the slidable toner catching plate.