无法指定正确的打印尺寸

printing java java-print

2022-09-04 23:28:47

我们最近购买了一台兄弟QL-700打印机，我们正在通过这台机器进行一些贴纸打印。

我们一直在喂食的纸张是一个62毫米宽的贴纸卷，没有“长度”限制。

问题是，无论我怎么做（我已经尝试过，），我都无法使用Java告诉打印机对话框窗口使用打印机的正确纸张大小。例如，我无法按照我们需要的62mm×40mm精确制作。它总是像这样“贴靠”到最近的纸张上：BookPrintRequestAttributeSet

下面是有问题的代码：

PrinterJob job = PrinterJob.getPrinterJob();
PageFormat pf = job.defaultPage();
Paper p = pf.getPaper();
p.setSize(UnitConv.mm2pt(62), UnitConv.mm2pt(40));
p.setImageableArea(0, 0, UnitConv.mm2pt(62), UnitConv.mm2pt(40));
pf.setPaper(p);
pf.setOrientation(PageFormat.LANDSCAPE);

job.setPrintable(this, pf);

if (job.printDialog()) {
    try {
        job.print();
    } catch (Exception PrintException) {
        PrintException.printStackTrace();
    }
}

我可以确认打印机可以根据需要以任何长度打印，如下面的屏幕截图所示（使用Brother的P-touch编辑器）。注意，虽然它是可调的，但是由软件本身预设的：36mm

所以问题：

如何强制纸张的“”精确到40mm？length

相关：标签打印机的定制纸张尺寸（兄弟QL 570）

编辑

我做了一个媒体大小查询（代码），下面是它可以支持的媒体列表：

17 mm x 54 mm: width = 0.67; height = 2.12
17 mm x 87 mm: width = 0.67; height = 3.42
23 mm x 23 mm: width = 0.9066535; height = 0.9066535
iso-b10: width = 1.2204725; height = 1.7322835
29 mm x 90 mm: width = 1.14; height = 3.5366535
38 mm x 90 mm: width = 1.4966536; height = 3.5366535
39 mm x 48 mm: width = 1.5366535; height = 1.8833464
52 mm x 29 mm: width = 1.1366535; height = 2.0466535
iso-b8: width = 2.440945; height = 3.464567
62 mm x 29 mm: width = 1.1366535; height = 2.44
62 mm x 100 mm: width = 2.44; height = 3.93
12 mm Dia: width = 0.47334644; height = 0.47334644
23 mm x 23 mm: width = 0.9066535; height = 0.9066535
58 mm Dia: width = 2.2933464; height = 2.2933464
12 mm: width = 0.47334644; height = 3.9366536
29 mm: width = 1.14; height = 3.9366536
38 mm: width = 1.4966536; height = 3.9366536
50 mm: width = 1.9666536; height = 3.9366536
54 mm: width = 2.1266534; height = 3.9366536
62 mm x 100 mm: width = 2.44; height = 3.93
12 mm x2: width = 0.82665354; height = 3.9366536
54 mm: width = 2.1266534; height = 3.9366536
38 mm x2: width = 2.8733466; height = 3.9366536
50 mm x2: width = 3.8133464; height = 3.9366536
54 mm x2: width = 3.9366536; height = 4.0933466
62 mm x2: width = 3.9366536; height = 4.76
29 mm: width = 1.14; height = 3.9366536
29 mm x3: width = 3.18; height = 3.9366536
38 mm x3: width = 3.9366536; height = 4.25
50 mm x3: width = 3.9366536; height = 5.66
54 mm x3: width = 3.9366536; height = 6.06
62 mm x3: width = 3.9366536; height = 7.08
38 mm: width = 1.4966536; height = 3.9366536
29 mm x4: width = 3.9366536; height = 4.2
38 mm x4: width = 3.9366536; height = 5.6266537
50 mm x4: width = 3.9366536; height = 7.5066533
54 mm x4: width = 3.9366536; height = 8.026653
62 mm x4: width = 3.9366536; height = 9.4
29 mm x 90 mm: width = 1.14; height = 3.5366535
38 mm x 90 mm: width = 1.4966536; height = 3.5366535
Small Address Label: width = 1.1366535; height = 2.44
17 mm x 54 mm: width = 0.67; height = 2.12
62 mm x 100 mm: width = 2.44; height = 3.93
62 mm x 100 mm: width = 2.44; height = 3.93
17 mm x 87 mm: width = 0.67; height = 3.42
17 mm x 54 mm: width = 0.67; height = 2.12
Binder 3 cm - Spine: width = 1.14; height = 8.226653
Binder 5 cm - Spine: width = 2.44; height = 8.226653
58 mm Dia: width = 2.2933464; height = 2.2933464
12 mm Dia: width = 0.47334644; height = 0.47334644
23 mm x 23 mm: width = 0.9066535; height = 0.9066535
23 mm x 23 mm: width = 0.9066535; height = 0.9066535
62 mm x 184 mm Postage Label: width = 2.44; height = 7.24
Binder 5 cm - Spine: width = 2.44; height = 8.226653

编辑（2017年4月）

只是为了更新这个问题的状态。最后，我使用python解决了这个问题，一个开源实用程序brother_ql它直接将作业发送到usb端口，甚至不使用brother提供的固件。它工作得很好，解决了我的问题。

答案 1

没有比这更好的回答方式了

那么也不要混淆高度和长度和宽度，java中的论文类采用宽度和高度而不是长度

 public void setSize(double width, double height) {
    mWidth = width;
    mHeight = height;

您可能还需要考虑这一点

   /**
 * Sets the imageable area of this <code>Paper</code>.  The
 * imageable area is the area on the page in which printing
 * occurs.
 * @param x the X coordinate to which to set the
 * upper-left corner of the imageable area of this <code>Paper</code>
 * @param y the Y coordinate to which to set the
 * upper-left corner of the imageable area of this <code>Paper</code>
 * @param width the value to which to set the width of the
 * imageable area of this <code>Paper</code>
 * @param height the value to which to set the height of the
 * imageable area of this <code>Paper</code>
 */
public void setImageableArea(double x, double y,
                             double width, double height) {
    mImageableArea = new Rectangle2D.Double(x, y, width,height);
}

这些只是paper类中的一些方法，当涉及到实现时，你可能想看看参数。希望它能帮助:)

答案 2

我见过很多次参数被传递以保持像素大小。你能试着像这样改变吗？PapersetSizemm2ptmm2px

PrinterJob job = PrinterJob.getPrinterJob();
PageFormat pf = job.defaultPage();
Paper p = pf.getPaper();
int resolution = 72; // dpi
p.setSize(UnitConv.mm2px(62, resolution), UnitConv.mm2px(40, resolution));
p.setImageableArea(0, 0, UnitConv.mm2px(62, resolution), UnitConv.mm2px(40, resolution));
pf.setPaper(p);
pf.setOrientation(PageFormat.LANDSCAPE);

job.setPrintable(this, pf);

if (job.printDialog()) {
    try {
        job.print();
    } catch (Exception PrintException) {
        PrintException.printStackTrace();
    }
}