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Thread: Printing Files using DocPrintJob

  1. #1
    Junior Member
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    Default Printing Files using DocPrintJob

    Hi all,


    I've been trying to print files to an EPSON Dot Matrix printer. I'm sending raw data to the printer. When I print one file, the routine works fine. But when I tried printing multiple files, that is by calling the .print() method, nothing gets printed at all.. Can anybody explain why this happens? And how can I try to print multiple files? I've tried getting it on an array but still it doesn't work. By the way, here is my code:

    public void printTheFile(String file){
    PrintService ps = PrintServiceLookup.lookupDefaultPrintService();
    try {
    if (ps!=null){
    PrintRequestAttributeSet aset= new HashPrintRequestAttributeSet();
    DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
    aset.add(new MediaPrintableArea (9,21,200,139,Size2DSyntax.MM));
    Doc pj = ps.createPrintJob();
    try {
    InputStream b = new BufferedInputStream(new FileInputStream(file));
    Doc doc = new SimpleDoc(b, flavor, null);
    pj.print(doc, aset);
    }catch (PrintException e){
    e.printStackTrace();
    }catch(Exception e) {
    e.printStackTrace();
    }//catch
    }
    }catch (Exception e){
    e.printStackTrace();
    }//catch
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Printing Files using DocPrintJob

    Hard to tell what your code does with only this small piece. Please use code tags to keep code formatting.
    What does the code do if ps==null?

  3. #3
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    Default Re: Printing Files using DocPrintJob

    Hi Norm, I guess ps will only be null if there is no default printer set on the machine. I still haven't resolved this issue yet but somehow, I found another solution that will make my code work.

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