Abstract: A check chip of the present invention employed at a usage of a sensor measuring device is provided with a structural characterizing portion of a convex shape, concave shape or a penetration hole at a location, by which a user is considered to pick up, and the state of the structural characterizing portion is made to be different from that of a structural characterizing portion provided on a correction chip which is similar to the check chip, in a size, the number of the structural characterizing portions, or placement location. According to the check chip constructed as above, the difference from the correction chip can be easily identified even by a visually handicapped person or a weak-sighted person, according to the difference in the structural characterizing portion, from the touch, thereby preventing the person from using the check chip and the correction chip with confused.

Abstract: A check chip of a sensor measuring device is provided with a structural characterizing portion of a convex shape, concave shape or a penetration hole at a location where a user is considered to pick the check chip up. The state of the structural characterizing portion is made to be different from that of a structural characterizing portion provided on a correction chip which is similar to the check chip, in size, the number of the structural characterizing portions, or placement location. Therefore, the difference from the correction chip can be easily identified even by a visually handicapped person or a weak-sighted person, according to the difference in the structural characterizing portion, from feel, thereby preventing the person from using the check chip and the correction chip with confusion.

Abstract: A check chip of the present invention employed at a usage of a sensor measuring device is provided with a structural characterizing portion of a convex shape, concave shape or a penetration hole at a location, by which a user is considered to pick up, and the state of the structural characterizing portion is made to be different from that of a structural characterizing portion provided on a correction chip which is similar to the check chip, in a size, the number of the structural characterizing portions, or placement location.

Abstract: An image printer for printing images with less cross-talk between images and less image flickering is provided. A plurality of images are interleft in one or a plurality of line units and a lenticular lens is used to make it possible for each individual pixel to be distinguished. The difference in brightness between an attentional pixel and the surrounding pixels that surround this attentional pixel is taken, and a correlation value is produced, the correlation value being reduced if the difference is large and increased if the difference is small. The image printer is equipped with a pixel shape controller that makes the printed pixels smaller in a region where the correlation value is low, and makes the printed pixels larger in a region where the correlation value is high.