Patent ID: 9665808
Date: 2017-05-30
CPC Classifications: B41M,G06K

Claim:
1. A method for printing a book, the method comprising steps for: a CPU's reading a document to print stored in a data storing device into a RAM; in the CPU, distributing the document to print to pages based on a predetermined size of character; in the CPU, in order to make a visible size difference of all characters printed on a printing surface recognized to be minimal when a reader reads the characters on the printing surface while a viewing direction of the reader is tilted from the printing surface, enlarging a longitudinal size (that is, a height) or the longitudinal size and a horizontal size (that is, a width) of the characters on a same page gradually as going from a lowest portion to a highest portion of the printing surface; and the CPU's supplying the document to print with character sizes assigned in the enlarging step per page to a printer, so as to be printed, wherein the longitudinal size of the characters at the highest portion in the entire region of each page of the book is k times larger than the longitudinal size of the characters at the lowest portion, and wherein a value of k is about 1.28˜1.79, and wherein the horizontal size of the characters at the highest portion in the entire region of each page of the book is k′ times larger than the horizontal size of the characters at the lowest portion, and wherein a value of k′ (a horizontal character size magnification) has a value that is 0.7˜1.0 times with respect to the k (the longitudinal character size magnification).