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我不知道我在哪里做错了，但我无法剪纸（部分或全部）。我在我的混合 android 应用程序中使用以下 javascript 代码并在 EPOS 上打印收据。

 var _EscCommand = (function () {
function _EscCommand() {
    this.ESC = "\u001B";
    this.GS = "\u001D";
    this.InitializePrinter = this.ESC + "@";
    this.BoldOn = this.ESC + "E" + "\u0001";
    this.BoldOff = this.ESC + "E" + "\0";
    this.DoubleHeight = this.GS + "!" + "\u0001";
    this.DoubleWidth = this.GS + "!" + "\u0010";
    this.DoubleOn = this.GS + "!" + "\u0011"; // 2x sized text (double-high + double-wide)
    this.DoubleOff = this.GS + "!" + "\0";
    this.PrintAndFeedMaxLine = this.ESC + "J" + "\u00FF";
    this.TextAlignLeft = this.ESC + "a" + "0";
    this.TextAlignCenter = this.ESC + "a" + "1";
    this.TextAlignRight = this.ESC + "a" + "2";
    this.PartialPaperCut = this.GS+"V"+"\0";
    this.FullPaperCut = this.GS+"V"+"\1";
}
_EscCommand.prototype.PrintAndFeedLine = function (verticalUnit) {
    if (verticalUnit > 255)
        verticalUnit = 255;
    if (verticalUnit < 0)
        verticalUnit = 0;
    return this.ESC + "J" + String.fromCharCode(verticalUnit);
};
_EscCommand.prototype.CutAndFeedLine = function (verticalUnit) {
    if (verticalUnit === void 0) {
        return this.ESC + "V" + 1;
    }
    if (verticalUnit > 255)
        verticalUnit = 255;
    if (verticalUnit < 0)
        verticalUnit = 0;
    return this.ESC + "V" + String.fromCharCode(verticalUnit);
};
return _EscCommand;

} ());

我正在使用 this.PartialPaperCut = this.GS+"V"+"\0"; 线以及我从互联网复制的方法，我没有让裁纸器裁纸。任何帮助都非常感谢..

我在其中构建打印字符串的 Javascript 行： print_dtl += Esc.InitializePrinter+Esc.DoubleOn+" kitchen COPY\n\n" + Esc.DoubleOff +kit_dtl + kit_copy +"\n\n\n\n"+Esc.PrintAndFeedMaxLine + Esc.CutAndFeedLine(); 除了最后剪的纸，我可以打印所有的东西。希望它澄清下面的评论者

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