My java thermal printer code not able to print long receipt(more than A4 sheet size). Its work fine normally, but in case where there is too much items in cart then it generate half print. My code is under mentioned-
public PrintReceipt(Map<String,String> hm){
/*
product details code..
*/
try{
input = new FileInputStream("C:/printer.properties");
prop.load(input);
printerName=prop.getProperty("receiptPrinter");
System.out.println("Printer Name "+printerName);
}catch(Exception exception){
System.out.println("Properties file not found");
}
PrintService[] pservices = PrintServiceLookup.lookupPrintServices(null,null);
for (int i = 0; i < pservices.length; i++) {
if (pservices[i].getName().equalsIgnoreCase(printerName)) {
job = PrinterJob.getPrinterJob();
PageFormat pf = job.defaultPage();
double margin = 1.0D;
Paper paper = new Paper();
paper.setSize(216D, paper.getHeight());
paper.setImageableArea(margin, margin, paper.getWidth() - margin * 1.5D, paper.getHeight() - margin * 1.5D);
pf.setPaper(paper);
job.setCopies(1);
pf.setOrientation(1);
job.setPrintable(this, pf);
try
{
job.print();
}
catch(PrinterException ex)
{
System.out.println("Printing failed");
}
}
}
}
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {
if(pageIndex > 0)
return 1;
Graphics2D g2d = (Graphics2D)graphics;
double width = pageFormat.getImageableWidth();
double height = pageFormat.getImageableHeight();
g2d.translate((int) pageFormat.getImageableX(),(int) pageFormat.getImageableY());
Font font = new Font("Monospaced",Font.BOLD,8);
g2d.setFont(font);
try {
/*
* Draw Image*
*/
int x=50 ;
int y=10;
int imagewidth=100;
int imageheight=50;
BufferedImage read = ImageIO.read(new File("C:/hotel.png"));
g2d.drawImage(read,x,y,imagewidth,imageheight,null); //draw image
g2d.drawString("-- * Resturant * --", 20,y+60);
g2d.drawLine(10, y+70, 180, y+70); //draw line
} catch (IOException e) {
e.printStackTrace();
}
try{
/*Draw Header*/
/*
product details code..
*/
/*Footer*/
//end of the receipt
}
catch(Exception r){
r.printStackTrace();
}
return 0;
}
Please let me know how can i generate long receipt print by correcting my code or if you have any better solution to do this.
Right here:
Paper paper = new Paper();
paper.setSize(216D, paper.getHeight());
You are creating a new Paper object and not setting its height.
Here is a link to the documentation of this class.
When creating a Paper object, it is the application's responsibility to ensure that the paper size and the imageable area are compatible
You need to set the height of the paper by calling paper.setSize(width, height) or it will use its default size property.
The dimensions are supplied in 1/72nds of an inch.
So both width and height will need to be provided in this format as doubles
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
PrintService printService[] = PrintServiceLookup.lookupPrintServices(
flavor, pras);
PrintService service = findPrintService(printerName, printService);
PDDocument document = PDDocument.load(bytes);
PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintService(service);
job.setPageable(new PDFPageable(document));
job.print();
if (document != null) {
document.close();
}
Related
I have an PDF what i want to print labels with PrinterJob. The problem is that the result is moved about 90 degrees, the printer is an Bixolon SLP-DX223. In the driversettings i have changed the label size in the main and default settings but there is no change on the print. If i print the pdf with the Acrobat Reader and the same settings the result ist perfekt but not with the PrinterJob print.
try {
PDDocument document = PDDocument.load(new File(file));
PrintService myPrintService = findPrintService(printer);
PrinterJob job = PrinterJob.getPrinterJob();
job.setPageable(new PDFPageable(document, Orientation.PORTRAIT));
job.setPrintService(myPrintService);
job.setJobName(jobname);
job.setCopies(copies);
job.print();
document.close();
}
catch (PrinterException | IOException e) {
e.printStackTrace();
}
Thanks for help
the answer from #GilbertLeBlanc brings me to the result, the size of the paper was not definied, so i have use the following code:
double labelWidth = 50.8; //width in mm
double labelHeigth = 25.4; //height in mm
labelWidth = labelWidth / 0.353; //calculate size
labelHeight = labelHeight / 0.353; //calculate size
Paper paper = new Paper();
paper.setSize(labelWidth, labelHeight);
paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight());
PageFormat pageFormat = new PageFormat();
pageFormat.setPaper(paper);
Book book = new Book();
book.append(new PDFPrintable(document), pageFormat, document.getNumberOfPages());
job.setPageable(book); //job is the printerjob
I have a Problem, My code which converts a PDF to Printable Format that can be printed locks my pdf file.
My Code:
public class PDFPrinter {
public PDFPrinter(File file) {
try {
FileInputStream fis = new FileInputStream(file);
FileChannel fc = fis.getChannel();
ByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
fis.close();
fc.close();
PDFFile pdfFile = new PDFFile(bb); // Create PDF Print Page
PDFPrintPage pages = new PDFPrintPage(pdfFile);
// Create Print Job
PrinterJob pjob = PrinterJob.getPrinterJob();
PageFormat pf = PrinterJob.getPrinterJob().defaultPage();
Paper a4paper = new Paper();
double paperWidth = 8.26;
double paperHeight = 11.69;
a4paper.setSize(paperWidth * 72.0, paperHeight * 72.0);
/*
* set the margins respectively the imageable area
*/
double leftMargin = 0.3;
double rightMargin = 0.3;
double topMargin = 0.5;
double bottomMargin = 0.5;
a4paper.setImageableArea(leftMargin * 72.0, topMargin * 72.0,
(paperWidth - leftMargin - rightMargin) * 72.0,
(paperHeight - topMargin - bottomMargin) * 72.0);
pf.setPaper(a4paper);
pjob.setJobName(file.getName());
Book book = new Book();
book.append(pages, pf, pdfFile.getNumPages());
pjob.setPageable(book);
// Send print job to default printer
if (pjob.printDialog()) {
pjob.print();
}
} catch (IOException e) {
e.printStackTrace();
} catch (PrinterException e) {
JOptionPane.showMessageDialog(null, "Printing Error: "
+ e.getMessage(), "Print Aborted",
JOptionPane.ERROR_MESSAGE);
e.printStackTrace();
}
}
class PDFPrintPage implements Printable {
private PDFFile file;
PDFPrintPage(PDFFile file) {
this.file = file;
}
public int print(Graphics g, PageFormat format, int index)
throws PrinterException {
int pagenum = index + 1;
// don't bother if the page number is out of range.
if ((pagenum >= 1) && (pagenum <= file.getNumPages())) {
// fit the PDFPage into the printing area
Graphics2D g2 = (Graphics2D) g;
PDFPage page = file.getPage(pagenum);
double pwidth = format.getImageableWidth();
double pheight = format.getImageableHeight();
double aspect = page.getAspectRatio();
double paperaspect = pwidth / pheight;
Rectangle imgbounds;
if (aspect > paperaspect) {
// paper is too tall / pdfpage is too wide
int height = (int) (pwidth / aspect);
imgbounds = new Rectangle(
(int) format.getImageableX(),
(int) (format.getImageableY() + ((pheight - height) / 2)),
(int) pwidth, height);
} else {
// paper is too wide / pdfpage is too tall
int width = (int) (pheight * aspect);
imgbounds = new Rectangle(
(int) (format.getImageableX() + ((pwidth - width) / 2)),
(int) format.getImageableY(), width, (int) pheight);
}
// render the page
PDFRenderer pgs = new PDFRenderer(page, g2, imgbounds, null,
null);
try {
page.waitForFinish();
pgs.run();
} catch (InterruptedException ie) {
}
return PAGE_EXISTS;
} else {
return NO_SUCH_PAGE;
}
}
}
}
I call it with:
new PDFPrinter(file);
Everything works fine, but after I started printing the PDF-file is locked by Java. Whats wrong?? When I restart Java it works again but only one time then it's locked again.
I found another solution...
For everyone:
public static void printPdf (String filePath, String jobName) throws IOException, PrinterException {
FileInputStream fileInputStream = new FileInputStream(filePath);
byte[] pdfContent = new byte[fileInputStream.available()];
fileInputStream.read(pdfContent, 0, fileInputStream.available());
ByteBuffer buffer = ByteBuffer.wrap(pdfContent);
final PDFFile pdfFile1 = new PDFFile(buffer);
pdf_print_engine pages1 = new pdf_print_engine(pdfFile1);
PrinterJob pjob = PrinterJob.getPrinterJob();
PageFormat pfDefault = PrinterJob.getPrinterJob().defaultPage();
Paper defaultPaper = new Paper();
defaultPaper.setImageableArea(0, 0, defaultPaper.getWidth(), defaultPaper.getHeight());
pfDefault.setPaper(defaultPaper);
pjob.setJobName("Test");
if (pjob.printDialog()) {
// validate the page against the chosen printer to correct
// paper settings and margins
pfDefault = pjob.validatePage(pfDefault);
Book book = new Book();
book.append(pages1, pfDefault, pdfFile1.getNumPages());
pjob.setPageable(book);
try {
pjob.print();
} catch (PrinterException exc) {
System.out.println(exc);
}
}
Have fun with the Code
Tim
I just got the printer to work in java how I need it too, but there's one last problem I need to solve. When it prints, the font's width is rather stretched, and not crisp and clear like it should be.
Here is my code my the actual drawing to the paper:
FontMetrics metrics = graphics.getFontMetrics(font);
int lineHeight = metrics.getHeight();
arrangePage(graphics, pageFormat, lineHeight);
if (page > pageBreaks.length){
return NO_SUCH_PAGE;
}
Graphics2D g = (Graphics2D) graphics;
g.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
g.setFont(font);
int y = 0;
int begin = 0;
if (page == 0){
begin = 0;
}else begin = pageBreaks[page-1];
int end = 0;
if (page == pageBreaks.length){
end = lines.length;
}else end = pageBreaks[page];
for (int line = begin; line < end; line++){
y += lineHeight;
g.drawString(lines[line], 0, y);
}
string = deepCopy;
return PAGE_EXISTS;
How do I get rid of the stretching? It can be noted that this is based off this tutorial:
http://docs.oracle.com/javase/tutorial/2d/printing/set.html
Any advice or help is greatly appreciated.
The default DPI is normal 72 DPI (I believe), which, on printed paper, is pretty terrible. You need to prompt the print API to try and find a printer with a better DPI.
Basically you need to use the print services API.
Try something like...
public class PrintTest01 {
public static void main(String[] args) {
PrinterResolution pr = new PrinterResolution(300, 300, PrinterResolution.DPI);
PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
aset.add(MediaSizeName.ISO_A4);
aset.add(pr);
aset.add(OrientationRequested.PORTRAIT);
PrinterJob pj = PrinterJob.getPrinterJob();
pj.setPrintable(new Page());
try {
pj.print(aset);
} catch (PrinterException ex) {
ex.printStackTrace();
}
}
public static class Page implements Printable {
#Override
public int print(Graphics g, PageFormat pageFormat, int pageIndex) throws PrinterException {
if (pageIndex > 0) {
return NO_SUCH_PAGE;
}
Graphics2D g2d = (Graphics2D) g;
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
g.setFont(new Font("Arial", Font.PLAIN, 128));
FontMetrics fm = g.getFontMetrics();
int x = (int)(pageFormat.getWidth() - fm.stringWidth("A")) / 2;
int y = (int)((pageFormat.getHeight() - fm.getHeight()) / 2) + fm.getAscent();
g2d.drawString("A", x, y);
return PAGE_EXISTS;
}
}
}
You might find Working with Print Services and Attributes of some help...
I should warn you, this is going to print to the first print that it can find that meets the PrintRequestAttributeSet. You could also add in the print dialog to see what's it doing, but that's another level of complexity I can live without right now ;)
The above worked! To open a print dialog with it, use this:
PrinterJob job = PrinterJob.getPrinterJob();
TextDocumentPrinter document = new TextDocumentPrinter();
PrinterResolution pr = new PrinterResolution(300, 300, PrinterResolution.DPI);
PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
aset.add(MediaSizeName.ISO_A4);
aset.add(pr);
aset.add(OrientationRequested.PORTRAIT);
job.setPrintable(document);
boolean doPrint = false;
if (showDialog){
doPrint = job.printDialog(aset);
}else doPrint = true;
if (doPrint){
try{
job.print();
}catch(PrinterException e){
e.printStackTrace();
}
}
The aset variable contains all of your new default values, and by plugging it into the printDialog, those are inputted into the printJob and consequently show up on the paper! They can be changed in the dialog, as well.
I wrote a program that generates a BufferedImage to be displayed on the screen and then printed. Part of the image includes grid lines that are 1 pixel wide. That is, the line is 1 pixel, with about 10 pixels between lines. Because of screen resolution, the image is displayed much bigger than that, with several pixels for each line. I'd like to draw it smaller, but when I scale the image (either by using Image.getScaledInstance or Graphics2D.scale), I lose significant amounts of detail.
I'd like to print the image as well, and am dealing with the same problem. In that case, I am using this code to set the resolution:
HashPrintRequestAttributeSet set = new HashPrintRequestAttributeSet();
PrinterResolution pr = new PrinterResolution(250, 250, ResolutionSyntax.DPI);
set.add(pr);
job.print(set);
which works to make the image smaller without losing detail. But the problem is that the image is cut off at the same boundary as if I hadn't set the resolution. I'm also confused because I expected a larger number of DPI to make a smaller image, but it's working the other way.
I'm using java 1.6 on Windows 7 with eclipse.
Regarding the image being cut-off on the page boundary, have you checked the clip region of the graphics? I mean try :
System.out.println(graphics.getClipBounds());
and make sure it is correctly set.
I had the same problem. Here is my solution.
First change the resolution of the print job...
PrinterJob job = PrinterJob.getPrinterJob();
// Create the paper size of our preference
double cmPx300 = 300.0 / 2.54;
Paper paper = new Paper();
paper.setSize(21.3 * cmPx300, 29.7 * cmPx300);
paper.setImageableArea(0, 0, 21.3 * cmPx300, 29.7 * cmPx300);
PageFormat format = new PageFormat();
format.setPaper(paper);
// Assign a new print renderer and the paper size of our choice !
job.setPrintable(new PrintReport(), format);
if (job.printDialog()) {
try {
HashPrintRequestAttributeSet set = new HashPrintRequestAttributeSet();
PrinterResolution pr = new PrinterResolution((int) (dpi), (int) (dpi), ResolutionSyntax.DPI);
set.add(pr);
job.setJobName("Jobname");
job.print(set);
} catch (PrinterException e) {
}
}
Now you can draw everything you like into the new high resolution paper like this !
public class PrintReport implements Printable {
#Override
public int print(Graphics g, PageFormat pf, int page) throws PrinterException {
// Convert pixels to cm to lay yor page easy on the paper...
double cmPx = dpi / 2.54;
Graphics2D g2 = (Graphics2D) g;
int totalPages = 2; // calculate the total pages you have...
if (page < totalPages) {
// Draw Page Header
try {
BufferedImage image = ImageIO.read(ClassLoader.getSystemResource(imgFolder + "largeImage.png"));
g2.drawImage(image.getScaledInstance((int) (4.8 * cmPx), -1, BufferedImage.SCALE_SMOOTH), (int) (cmPx),
(int) (cmPx), null);
} catch (IOException e) {
}
// Draw your page as you like...
// End of Page
return PAGE_EXISTS;
} else {
return NO_SUCH_PAGE;
}
}
It sounds like your problem is that you are making the grid lines part of the BufferedImage and it doesn't look good when scaled. Why not use drawLine() to produce the grid after your image has been drawn?
Code for Convert image with dimensions using Java and print the converted image.
Class: ConvertImageWithDimensionsAndPrint.java
package com.test.convert;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class ConvertImageWithDimensionsAndPrint {
private static final int IMAGE_WIDTH = 800;
private static final int IMAGE_HEIGHT = 1000;
public static void main(String[] args) {
try {
String sourceDir = "C:/Images/04-Request-Headers_1.png";
File sourceFile = new File(sourceDir);
String destinationDir = "C:/Images/ConvertedImages/";//Converted images save here
File destinationFile = new File(destinationDir);
if (!destinationFile.exists()) {
destinationFile.mkdir();
}
if (sourceFile.exists()) {
String fileName = sourceFile.getName().replace(".png", "");
BufferedImage bufferedImage = ImageIO.read(sourceFile);
int type = bufferedImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : bufferedImage.getType();
BufferedImage resizedImage = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT, type);
Graphics2D graphics2d = resizedImage.createGraphics();
graphics2d.drawImage(bufferedImage, 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT, null);//resize goes here
graphics2d.dispose();
ImageIO.write(resizedImage, "png", new File( destinationDir + fileName +".png" ));
int oldImageWidth = bufferedImage.getWidth();
int oldImageHeight = bufferedImage.getHeight();
System.out.println(sourceFile.getName() +" OldFile with Dimensions: "+ oldImageWidth +"x"+ oldImageHeight);
System.out.println(sourceFile.getName() +" ConvertedFile converted with Dimensions: "+ IMAGE_WIDTH +"x"+ IMAGE_HEIGHT);
//Print the image file
PrintActionListener printActionListener = new PrintActionListener(resizedImage);
printActionListener.run();
} else {
System.err.println(destinationFile.getName() +" File not exists");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
Reference of PrintActionListener.java
package com.test.convert;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
public class PrintActionListener implements Runnable {
private BufferedImage image;
public PrintActionListener(BufferedImage image) {
this.image = image;
}
#Override
public void run() {
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(new ImagePrintable(printJob, image));
if (printJob.printDialog()) {
try {
printJob.print();
} catch (PrinterException prt) {
prt.printStackTrace();
}
}
}
public class ImagePrintable implements Printable {
private double x, y, width;
private int orientation;
private BufferedImage image;
public ImagePrintable(PrinterJob printJob, BufferedImage image) {
PageFormat pageFormat = printJob.defaultPage();
this.x = pageFormat.getImageableX();
this.y = pageFormat.getImageableY();
this.width = pageFormat.getImageableWidth();
this.orientation = pageFormat.getOrientation();
this.image = image;
}
#Override
public int print(Graphics g, PageFormat pageFormat, int pageIndex) throws PrinterException {
if (pageIndex == 0) {
int pWidth = 0;
int pHeight = 0;
if (orientation == PageFormat.PORTRAIT) {
pWidth = (int) Math.min(width, (double) image.getWidth());
pHeight = pWidth * image.getHeight() / image.getWidth();
} else {
pHeight = (int) Math.min(width, (double) image.getHeight());
pWidth = pHeight * image.getWidth() / image.getHeight();
}
g.drawImage(image, (int) x, (int) y, pWidth, pHeight, null);
return PAGE_EXISTS;
} else {
return NO_SUCH_PAGE;
}
}
}
}
Output:
04-Request-Headers_1.png OldFile with Dimensions: 1224x1584
04-Request-Headers_1.png ConvertedFile converted with Dimensions: 800x1000
After conversion of a image a Print window will be open for printing the converted image. The window displays like below, Select the printer from Name dropdown and Click OK button.
You can use either of the following to improve the quality of the scaling. I believe BiCubic gives better results but is slower than BILINEAR.
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
I would also not use Image.getScaledInstance() as it is very slow. I'm not sure about the printing as I'm struggling with similar issues.
I have a text file, and I need to print it to a specific network printer. I know the name of the printer.
Until now I have made a Printable class to print my file (ticket).
public class TicketPrintPage implements Printable {
private File ticket;
public TicketPrintPage(File f) {
ticket = f;
}
public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException {
int interline = 12;
Graphics2D g2 = (Graphics2D) g;
g2.setFont(new Font("CourierThai", Font.PLAIN, 10));
int x = (int) pf.getImageableX();
int y = (int) pf.getImageableY();
try {
FileReader fr = new FileReader(ticket);
BufferedReader br = new BufferedReader(fr);
String s;
while ((s = br.readLine()) != null) {
y += interline;
g2.drawString(s, x, y);
}
} catch (IOException e) {
throw new PrinterException("File to print does not exist (" + ticket.getAbsolutePath() +") !");
}
return Printable.PAGE_EXISTS;
}
}
I call this TicketPrintPage this way :
public void printTicketFile(File ticket, int orientation) throws PrinterException {
if (!ticket.exists()) {
throw new PrinterException("Ticket to print does not exist (" + ticket.getAbsolutePath() + ") !");
}
PrinterJob pjob = PrinterJob.getPrinterJob();
// get printer using PrintServiceLookup.lookupPrintServices(null, null) and looking at the name
pjob.setPrintService(getPrintService());
// job title
pjob.setJobName(ticket.getName());
// page fomat
PageFormat pf = pjob.defaultPage();
// landscape or portrait
pf.setOrientation(orientation);
// Paper properties
Paper a4Paper = new Paper();
double paperWidth = 8.26;
double paperHeight = 11.69;
double margin = 16;
a4Paper.setSize(paperWidth * 72.0, paperHeight * 72.0);
a4Paper.setImageableArea(
margin,
//0,
margin,
//0,
a4Paper.getWidth()- 2 * margin,
//a4Paper.getWidth(),
a4Paper.getHeight()- 2 * margin
//a4Paper.getHeight()
); // no margin = no scaling
pf.setPaper(a4Paper);
// Custom class that defines how to layout file text
TicketPrintPage pages = new TicketPrintPage(ticket);
// adding the page to a book
Book book = new Book();
book.append(pages, pf);
// Adding the book to a printjob
pjob.setPageable(book);
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
// No jobsheet (banner page, the page with user name, job name, date and whatnot)
pras.add(JobSheets.NONE);
// Printing
pjob.print(pras);
}
It works not so bad but :
- I doesn't work for more than one page of text (found some algorithms for that but well)
- I can't get to know when the printer is done printing, and if I try printing two or more tickets in a row the printer will return a Printer not ready message.
So the question again is : Isn't there a simple way to print a text file to a printer ?
JTextComponent#print should do the trick:
JTextPane jtp = new JTextPane();
jtp.setBackground(Color.white);
jtp.setText("text to print");
boolean show = true;
try {
jtp.print(null, null, show, null, null, show);
} catch (java.awt.print.PrinterException ex) {
ex.printStackTrace();
}
in this manner you can quickly print out even nice formatted text - just create a StyledDocument and attach it to JTextPane before printing.
I'm not sure if this solves your problem but I use the following to print a text file
FileInputStream textStream;
textStream = new FileInputStream(FILE_NAME);
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
Doc mydoc = new SimpleDoc(textStream, flavor, null);
PrintService[] services = PrintServiceLookup.lookupPrintServices(
flavor, aset);
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
if(services.length == 0) {
if(defaultService == null) {
//no printer found
} else {
//print using default
DocPrintJob job = defaultService.createPrintJob();
job.print(mydoc, aset);
}
} else {
//built in UI for printing you may not use this
PrintService service = ServiceUI.printDialog(null, 200, 200, services, defaultService, flavor, aset);
if (service != null)
{
DocPrintJob job = service.createPrintJob();
job.print(mydoc, aset);
}
}
You may not need the ServiceUI, but I think you could use PrintService[] services to get a list of printers available for printing. And using an input stream and the Doc class you can print a file to a printer.