Epson LQ-510X User Manual - Page 211
LPRINT, CHR$27;CHR$87;CHR$1, LPRINT CHR$27;W;CHR$1, can be sent, Command Summary 9-3
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The simplest type of command consists of a single character to be sent to the printer. For instance, to print in condensed mode, the code format is: ASCII code: SI Decimal: 15 Hexadecimal: OF This code can be sent from a program by sending the code 15 directly. More complex commands consist of two or more character codes. For example, to print in double-wide mode, the code format is the following: ASCII code: ESC W n Decimal: 27 87 n Hexadecimal: 1B 57 n In this case n can be either 1 (on) or 0 (off), to begin or end doublewidth printing. You can use either of the following commands to turn on double-width print from BASIC: LPRINT CHR$(27);CHR$(87);CHR$(1) LPRINT CHR$(27);"W";CHR$(1) For the following commands that use only 0 or 1 for the variable, either the decimal or hexadecimal values 1 and 0 or the ASCII characters 1 and 0 can be used: ESC U, ESC x, ESC p, ESC W, ESC S, ESC-, and ESC % For example, in BASIC you can turn on proportional spacing with either of these statements: LPRINT CHR$(27);"p";CHR$(1) LPRINT CHR$(27);"p";"1" Command Summary 9-3