Kyocera FS 1920 PRESCRIBE Commands Technical Reference Manual - Rev. 4.7 - Page 81
Symbol Set
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Figure 4. 1. Character dot pattern Symbol Set The pattern is 13 dots high and 13 dots wide. The pattern is encoded as a series of 16-bit words. If necessary, blank cells may be added on the right to make the width a multiple of 16. For this reason, the three extra columns appear on the right (see the figure above). Each 16-bit word is encoded with three characters, representing the most significant six bits, the next six bits, and the least significant four bits, respectively, as shown in Defining Fill Patterns in Chapter 2. To obtain the character codes, divide the word into sections of six, six, and four bits and calculate the numerical value of each section (referred to as x, y, and z, respectively), treating it as a binary number in which the white dots are zeros and the black dots are ones. Then add an offset of 64 to the values of the six-bit sections and 48 to the values of the four-bit sections. The result is the ASCII code of the character representing that section (x, y, and z, respectively). Refer to the example of dot map and numerical derivation in Defining Fill Patterns in Chapter 2. The procedure for the numerical derivation is identical to creating fill patterns for XPAT. Six-bit sections consisting of all black dots, as in the middle row of this symbol, are a special case. They encode by using the ASCII code 127, which is the unprintable delete code. Character 47 (/) may therefore be used instead. The resolution may be specified for 300 or 600 (dpi) only in printing system models that support the 600-dpi resolution printing. LDFC generated 300 dpi characters may print when the default resolution is 300 or 600 dpi. It is not possible for 600 dpi LDFC generated characters to print at 300 dpi. The bit map data proceeds from left to right across the character pattern, then from top to bottom. The data can be formatted by inserting line-feeds, but not spaces. If we assign this character an x-offset of 0 and a y-offset and cell width of 500 micro dots each, and make it ASCII code 42 (*) of font 1000, it creates the following LDFC command: !R! LDFC 1000, 42, 13, 13, 500, 0, 500, 250, 0; @'0@'0Ap0Ap0Cx00|At0//J80|At0Cx0Ap0Ap0@'0@'0; UNIT C; BOX 4.35, 0.75, L; FONT 1000; TEXT EXIT; Symbol Set The page printing system can produce sets of alphabet, numeric, and symbol characters. These sets, with each character assigned to a particular code, are known as symbol sets. 4-13