我正在尝试使用标签打印机(具体为EPSON TM-T88V)来吐出PNG图像。
我可以打印得很好,除非我正在打印图像尺寸(220x175在72dpi再次具体),打印图像顶部有一沓白色空间,我认为这是浪费纸张
关于如何最大限度地减少纸张浪费的任何想法?我希望它只打印图像,最小的空白然后剪切纸张。
这是我的代码
AttributeSet aset = new HashAttributeSet();
aset.add(new PrinterName(printerName, null));
/* locate a print service that can handle the request */
PrintService[] services = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.PNG, aset);
if (services.length >= 1) {
/* create a print job for the chosen service */
DocPrintJob pj = services[0].createPrintJob();
DocAttributeSet das = new HashDocAttributeSet();
das.add(PrintQuality.HIGH);
das.add(MediaSizeName.ISO_A7); // I know the problem is here somewhere. This Media size seems to work best currently
try {
/*
* Create a Doc object to hold the print data.
*/
Doc doc = new SimpleDoc(imageByteIs, DocFlavor.INPUT_STREAM.PNG, das);
/* print the doc as specified */
pj.print(doc, null);
} catch (PrintException e) {
System.err.println(e);
}
}
答案 0 :(得分:3)
您可以通过以下方式找到可用的纸张尺寸:
PrintService printService = PrintServiceLookup.lookupDefaultPrintService();
Media[] res = (Media[]) printService.getSupportedAttributeValues(Media.class, null, null);
for (Media media : res) {
if (media instanceof MediaSizeName) {
MediaSizeName msn = (MediaSizeName) media;
MediaSize ms = MediaSize.getMediaSizeForName(msn);
float width = ms.getX(MediaSize.INCH);
float height = ms.getY(MediaSize.INCH);
System.out.println(media + ": width = " + width + "; height = " + height);
}
}
找到最适合您纸张尺寸的可用MediaSizeName后,只需将其添加到MediaSizeName.ISO_A7。
答案 1 :(得分:0)
das.add(new MediaPrintableArea(0.05, 0.05, 0.05, 0.05, MediaPrintableArea.INCH));
答案 2 :(得分:0)
这是我用于在A4纸上打印10mm边距的设置。
int width = Math.round(MediaSize.ISO.A4.getX(MediaSize.MM));
int height = Math.round(MediaSize.ISO.A4.getY(MediaSize.MM));
das.add(new MediaPrintableArea(10, 10, width-20, height-20, MediaPrintableArea.MM));