These printer strings should works on all Epson 9- and 24-pin printers and compatibles. If some strings don't work, your printer might not support that particular feature.
The # character represents a variable that should be replaced by a number. For example, the string for setting the number of lines on a page is \027 \C###. To print 66 lines on a page, you would enter \027\C66. Also, be careful to distinguish between upper- and lowercase letters; the figure 0 and the capital letter O; and the lowercase l and the number 1.