如何在爱普生打印机上设置打印机可打印区域?
How to set printer printable area on Epson printer?
我在为我的 Epson 打印机设置页边距或可打印区域宽度时遇到问题,我不确定。我尝试了一切,设置驱动程序,以及一切。
我正在使用两台打印机 EPSON TM-T20II Receipt 和 EPSON TM-H6000II Receipt,但它们都有问题。测试页打印正确,但我的数据不会在整个页面上传播。
这是我正在使用的代码。
public class Printing implements Printable {
private String stringToPrint;
public Printing(String stringToPrint) {
this.stringToPrint = stringToPrint;
}
@Override
public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException {
if (pageIndex >= 1) {
return Printable.NO_SUCH_PAGE;
}
Paper paper = new Paper();
double margin = 0;
paper.setImageableArea(margin, margin, 612.0, 792.0);
pf.setPaper(paper);
g.setColor(Color.black);
g.setFont(new Font(Font.MONOSPACED, Font.BOLD, 13));
g.translate(0, 0);
String printers = paper.getImageableHeight() + " " + paper.getImageableWidth() + "---" + pf.getHeight() + " "
+ pf.getWidth();
Writer fw = null;
try {
fw = new OutputStreamWriter(new FileOutputStream("printingData.txt"), StandardCharsets.UTF_8);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
writer.print(printers);
writer.close();
int x = 0;
int y = 100;
for (String line : stringToPrint.split("\n")) {
g.drawString(line, x, y += g.getFontMetrics().getHeight());
}
return Printable.PAGE_EXISTS;
}
public static void printer(String printerData, Boolean bill, String designatedPrinter)
throws IOException, PrinterException {
try {
PrintService printService = PrintServiceLookup.lookupDefaultPrintService();
PrintService designatedService = null;
PrintService[] printServices = PrintServiceLookup.lookupPrintServices(null, null);
AttributeSet aset = new HashAttributeSet();
aset = new HashAttributeSet();
aset.add(ColorSupported.NOT_SUPPORTED);
String printers = "";
for (int i = 0; i < printServices.length; i++) {
printers += " service found " + printServices[i].getName() + "\n";
}
for (int i = 0; i < printServices.length; i++) {
System.out.println(" service found " + printServices[i].getName());
if (printServices[i].getName().equalsIgnoreCase(designatedPrinter)) {
System.out.println("I want this one: " + printServices[i].getName());
designatedService = printServices[i];
break;
}
}
Writer fw = new OutputStreamWriter(new FileOutputStream("printing.txt"), StandardCharsets.UTF_8);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
writer.print(printers);
writer.close();
PrinterJob pj = PrinterJob.getPrinterJob();
pj.setPrintService(designatedService);
Printable painter;
// Specify the painter
painter = new Printing(printerData);
pj.setPrintable(painter);
pj.print();
} catch (PrinterException e) {
Writer fw = new OutputStreamWriter(new FileOutputStream("log.txt", true), StandardCharsets.UTF_8);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
e.printStackTrace(writer);
writer.close();
}
}
}
问题是您正在创建新页面但没有将其添加到 PrinterJob
您添加以下评论。
// Specify the painter
painter = new Printing(printerData);
pj.setPrintable(painter);
PageFormat pf0 = pj.defaultPage();
Paper p = pf0.getPaper();
p.setImageableArea(0, 0, pf0.getWidth(), pf0.getHeight());
pf0.setPaper(p);
pj.validatePage(pf0);
Book book = new Book();
book.append(painter, pj.validatePage(pf0));
pj.setPageable(book);
pj.print();
您在 print
函数中不需要它。
我在为我的 Epson 打印机设置页边距或可打印区域宽度时遇到问题,我不确定。我尝试了一切,设置驱动程序,以及一切。
我正在使用两台打印机 EPSON TM-T20II Receipt 和 EPSON TM-H6000II Receipt,但它们都有问题。测试页打印正确,但我的数据不会在整个页面上传播。
这是我正在使用的代码。
public class Printing implements Printable {
private String stringToPrint;
public Printing(String stringToPrint) {
this.stringToPrint = stringToPrint;
}
@Override
public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException {
if (pageIndex >= 1) {
return Printable.NO_SUCH_PAGE;
}
Paper paper = new Paper();
double margin = 0;
paper.setImageableArea(margin, margin, 612.0, 792.0);
pf.setPaper(paper);
g.setColor(Color.black);
g.setFont(new Font(Font.MONOSPACED, Font.BOLD, 13));
g.translate(0, 0);
String printers = paper.getImageableHeight() + " " + paper.getImageableWidth() + "---" + pf.getHeight() + " "
+ pf.getWidth();
Writer fw = null;
try {
fw = new OutputStreamWriter(new FileOutputStream("printingData.txt"), StandardCharsets.UTF_8);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
writer.print(printers);
writer.close();
int x = 0;
int y = 100;
for (String line : stringToPrint.split("\n")) {
g.drawString(line, x, y += g.getFontMetrics().getHeight());
}
return Printable.PAGE_EXISTS;
}
public static void printer(String printerData, Boolean bill, String designatedPrinter)
throws IOException, PrinterException {
try {
PrintService printService = PrintServiceLookup.lookupDefaultPrintService();
PrintService designatedService = null;
PrintService[] printServices = PrintServiceLookup.lookupPrintServices(null, null);
AttributeSet aset = new HashAttributeSet();
aset = new HashAttributeSet();
aset.add(ColorSupported.NOT_SUPPORTED);
String printers = "";
for (int i = 0; i < printServices.length; i++) {
printers += " service found " + printServices[i].getName() + "\n";
}
for (int i = 0; i < printServices.length; i++) {
System.out.println(" service found " + printServices[i].getName());
if (printServices[i].getName().equalsIgnoreCase(designatedPrinter)) {
System.out.println("I want this one: " + printServices[i].getName());
designatedService = printServices[i];
break;
}
}
Writer fw = new OutputStreamWriter(new FileOutputStream("printing.txt"), StandardCharsets.UTF_8);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
writer.print(printers);
writer.close();
PrinterJob pj = PrinterJob.getPrinterJob();
pj.setPrintService(designatedService);
Printable painter;
// Specify the painter
painter = new Printing(printerData);
pj.setPrintable(painter);
pj.print();
} catch (PrinterException e) {
Writer fw = new OutputStreamWriter(new FileOutputStream("log.txt", true), StandardCharsets.UTF_8);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter writer = new PrintWriter(bw);
e.printStackTrace(writer);
writer.close();
}
}
}
问题是您正在创建新页面但没有将其添加到 PrinterJob
您添加以下评论。
// Specify the painter
painter = new Printing(printerData);
pj.setPrintable(painter);
PageFormat pf0 = pj.defaultPage();
Paper p = pf0.getPaper();
p.setImageableArea(0, 0, pf0.getWidth(), pf0.getHeight());
pf0.setPaper(p);
pj.validatePage(pf0);
Book book = new Book();
book.append(painter, pj.validatePage(pf0));
pj.setPageable(book);
pj.print();
您在 print
函数中不需要它。