Print raw bytes to thermal printer

[Tobia Scapin]

Hello everyone,
I have to write a simple applet to print a byte array to a thermal printer (raw textual stream, it is a ESCPOS printer).
I can not understand how to open a RAW stream to the printer, i tried to create a SimpleDoc object and send it to the PrintService but i can not find the correct flavor. Maybe a need a StreamInput object to write, but how to get it from my printer?

Thanks.

[Rob Spoor]

What DocFlavor are you using? How are you creating the SimpleDoc? How are you looking up the PrintService?

[Tobia Scapin]

I get the printerservice with a loop on this array (checking the service name):

PrintService[] printServices = PrintServiceLookup.lookupPrintServices(null, null);

And i print with this:

byte[] content = ...
DocPrintJob job = service.createPrintJob();
Doc doc= new SimpleDoc(content , DocFlavor.BYTE_ARRAY.AUTOSENSE, null);
job.print(doc, new HashPrintRequestAttributeSet());

[Rob Spoor]

And what does service.getSupportedDocFlavors() return? Is DocFlavor.BYTE_ARRAY.AUTOSENSE one of them?

[Roldan Baldo]

Hi, sorry for reviving this old thread, but I've got a similar problem with this, and to avoid double posting.

I also have problem in printing, I use

                    String defaultPrinter = PrintServiceLookup.lookupDefaultPrintService().getName();
		    System.out.println("Default printer: " + defaultPrinter);
		    PrintService service = PrintServiceLookup.lookupDefaultPrintService();
		    // prints the famous hello world! plus a form feed
		    InputStream is = new ByteArrayInputStream("hello world ddsds!\f".getBytes("UTF8"));

		    PrintRequestAttributeSet  pras = new HashPrintRequestAttributeSet();

		    pras.add(new Copies(1));

		    DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
		    Doc doc = new SimpleDoc(is, flavor, null);
		    DocPrintJob job = service.createPrintJob();

		    job.print(doc, pras);
		    is.close();

but the printer print some code/text like
%!PS-Adobe-3.0
%%BoundingBox: 17 19 595 773
%%Pages: 1
.....
%%BegingFeature: *InputSlot Upper
2 dict up /PageSize [612 792] put dup /ImagingBox null put setpagedevice
%%EndFeature
....
%%EndSetup
%%Page: 1 1
%%BeginPageSetup
%%EndPageSetup
%%BeginDocument: nondsc
Hello World
%%EndDocument
%%EOF

I just wanted to print the "Hello World", how will I eliminate the unwanted text in the output? is there something in my code?

My printer is ESC/POS
Model P06-P
My platform: Mac OS 10.8.2

Any help would be much appreciated. Thanks.