Javax.print.attribute.standard.MediaTray.MANUAL not working

Question

Hello,
Requirement : Printer should prompt for manual paper feed while printing a pdf.
Code snippet:
public static void main(String[] args) throws Exception
SimpleDoc simpleDoc = new SimpleDoc(*new* FileInputStream(*new* File("c:\\old.pdf")),
DocFlavor.INPUT_STREAM.+AUTOSENSE+,*null* );
PrintService defaultPrintService = PrintServiceLookup.+lookupDefaultPrintService+();
DocPrintJob docPrintJob = defaultPrintService.createPrintJob();
{color:#ff0000}PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet(MediaTray.+MANUAL+);{color}
docPrintJob.print(simpleDoc, aset);
Problem: The print attribute {color:#ff0000}MediaTray.MANUAL{color} is ignored in the above snippet. But when the same attribute when used with jasper reports library, it works fine.
I appreciate your help.
Thanks in advance.

Answer 1

You get out your printer manual and check if your printer will do this or not, if it does, then look up the codes that the printer requires to do that task. If it doesn't do it, then go buy a printer that does support it and look up the codes that the printer requires to do that task. Once you have the codes that are required to do that task, then check if there are any special signals (pin activations and etc) that need to be sent to enable that mode. If there are no special signals that are needed to enable that mode, then send the codes to the printer. If you need special signals, then your probably looking at a JNI module for your project to generate the special signals needed.