Lexmark Dot Matrix Technical Reference - Page 115

Downloading an NLQ II Character Set The 248x printers can download two sets of NLQ II characters. The first set is initialized to a Courier-like font, and the second to a Courier italic-like font. Since there are two download areas, you must use a Select Print Mode, ESC I, before downloading to select between the two download areas. To select the first area, use the ESC I x07 command. For the second download area, use the ESC I x0F command. Downloading NLQ II character set is performed using the ESC = command similar to the Draft/NLQ download command. Syntax: ESC = count1 count2 font id start Decimal: 27 61 count1 count2 21 start Hex: 1B 3D count1 count2 15 start Part One: Calculating Count 1, Count 2 Count 1, count 2 Font ID byte Start specify the number of bytes to be downloaded. is the value assigned to identify the type of font data. The ID for NLQ II is 21 (x15). The start code is the ASCII value (code-point) for the first downloaded character. It must be in the range of x00 to xFF. You can start your downloaded character set at any point in the character table. The download characters replace normal characters starting at this code-point. For example, to download a character set that replaces characters starting with the uppercase letter 'A', use a start code- point equal to 65 (x41), 'A'. All character codes within the same download command must be consecutive from the start code-point. 115 Section 7: Downloading Characters and Fonts