In a camera according to the present invention, an edge portion of a lens barrel unit is projected and arranged from a front cover. Diffusion of this ink in the printing medium is suppressed in the cross-sectional direction but not horizontal direction. Further, synchronization information data is exchanged between the first and the second device to identify a reference point in a three-dimensional space relative to the physical location of the devices in the 3D space. Examples of alternate symbols are accented characters and punctuation marks that do not appear on a keyboard or are not commonly recognized by a handwriting entry program, and short symbol sequences. The equalized values are averaged with the original pixel values with a weighting factor that is different for the three regions chosen such that the darker regions are enhanced more than the brighter ones.