Printing with Attributes(Tray Control, Duplex, etc…) using javax.print library

Question

I\'ve been trying for some time to determine a way to use the standard Java Print library to print files - specifically, PDF documents - with certai

Answer 1

I've found the trick for the printer trays is to iterate over the Media.class using getSupportedAttributeValues(...), match the human-readable name, and select that particular value. Tested on Windows, MacOS with several tray configurations.

String tray = "1";

// Handle human-readable names, see PRINTER_TRAY_ALIASES usage below for context.  Adjust as needed.
List PRINTER_TRAY_ALIASES = Arrays.asList("", "Tray ", "Paper Cassette ");

// Get default printer
PrintService printService = PrintServiceLookup.lookupDefaultPrintService();

// Attributes to be provided at print time
PrintRequestAttributeSet pset = new HashPrintRequestAttributeSet();

Media[] supported = printService.getSupportedAttributeValues(Media.class, null, null);
for(Media m : supported) {           
    for(String pta : PRINTER_TRAY_ALIASES) {
        // Matches "1", "Tray 1", or "Paper Cassette 1"
        if (m.toString().trim().equalsIgnoreCase(pta + tray)) {
            attributes.add(m);
            break;
        }
    }
}

// Print, etc
// printJob.print(pdfDoc, pset);