Epson 4100 manual Print Quality, NLQ Download Character

158 Universal Control Commands

To design NLQ characters, place dots within any of the design matrix cells. Forty columns of character data are sent to the printer, twenty for each print pass. In the second print pass, the dots are offset vertically by one-half dot.

Print Quality, NLQ Download Character

AB0-V1

In calculating the 40 columns of data, calculate the 10 columns of cell- value data as you would for the correspondence character mentioned earlier; that is, calculate by adding up the ascender or descender cell values of corresponding cells with dots. Then, for the NLQ character, include a zero value between each correspondence column value to create the 20 data bytes for the first NLQ pass. For the second NLQ pass, do the same but drop the leading column value and add a trailing zero value.