The present invention relates to materials and methods for protecting man-made structures made with non-wood materials from termite damage through the application of borates to the surface of non-wood materials. Solution to Problem: A transmitter 11 inserts error detection codes into information packets on one-to-one basis, at a certain layer at which signal processing is performed earlier than at a physical layer, to obtain first information packets. T-shaped recesses may also be located within a single diffusor. A method of comparison wherein the reference pixel and the pixel or pixels under analysis is disclosed which plots the pixels in three-dimensional space defined by the color palette variables, allowing a pixel to match the reference pixel if its position within the three-dimensional color space is within a certain radius of the reference pixels position. The matrix operation manager, for each iteration of the outer loop, is configured to load to the cache and to write to a contiguous portion of the memory, before performing the inner loop, values from the first matrix that are to be combined, via performance of the inner loop, with values from the second matrix. If an operation in preceding use is ended without any error at the time of power-off, and no error has occurred even at the time of power-on, the inkjet printing apparatus of this invention starts the printing operation without executing the operation of detecting the amount of remaining ink in the ink tank after power-on.