PHP Escpos::setDoubleStrike示例

/* Cuts */
$printer->text("Partial cut\n(not available on all printers)\n");
$printer->cut(Escpos::CUT_PARTIAL);
$printer->text("Full cut\n");
$printer->cut(Escpos::CUT_FULL);
/* Emphasis */
for ($i = 0; $i < 2; $i++) {
    $printer->setEmphasis($i == 1);
    $printer->text("The quick brown fox jumps over the lazy dog\n");
}
$printer->setEmphasis(false);
// Reset
$printer->cut();
/* Double-strike (looks basically the same as emphasis) */
for ($i = 0; $i < 2; $i++) {
    $printer->setDoubleStrike($i == 1);
    $printer->text("The quick brown fox jumps over the lazy dog\n");
}
$printer->setDoubleStrike(false);
$printer->cut();
/* Fonts (many printers do not have a 'Font C') */
$fonts = array(Escpos::FONT_A, Escpos::FONT_B, Escpos::FONT_C);
for ($i = 0; $i < count($fonts); $i++) {
    $printer->setFont($fonts[$i]);
    $printer->text("The quick brown fox jumps over the lazy dog\n");
}
$printer->setFont();
// Reset
$printer->cut();
/* Justification */
$justification = array(Escpos::JUSTIFY_LEFT, Escpos::JUSTIFY_CENTER, Escpos::JUSTIFY_RIGHT);