FULL PRODUCT VERSION :
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
I am printing scanned document (articles of scientific publication with a lot of text ans figures) in TIFF format into A4 page (2592,3508 in 595,841 points) with a AffineTransform(). Printing works fine with Java 5 but with Java 6 it is a lost of quality of the printed document (many points are not printed).
i use java.awt.Graphics2D.drawRenderedImage(RenderedImage img, AffineTransform xform) for printing


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
in the main program :

    private DocPrintJob dpj = null;
    DocFlavor flavor;
    PrintRequestAttributeSet attributs;

        flavor = DocFlavor.SERVICE_FORMATTED.PAGEABLE;
        attributs = new HashPrintRequestAttributeSet();
        attributs.add(new Copies(1));
        PrintService service = PrintServiceLookup.lookupDefaultPrintService();
        dpj = service.createPrintJob();


             FileSeekableStream stream = null;
             try {
                 stream = new FileSeekableStream(TIFF file);
             } catch (IOException e) {
                 e.printStackTrace();
                 System.exit(0);
             }

            // Store the input stream in a ParameterBlock to be sent to
            // the operation registry, and eventually to the TIFF
            // decoder.
             ParameterBlock params = new ParameterBlock();
             params.add(stream);

            /* r��cup��ration et mise en forme du Tiff */
//            MemoryCacheSeekableStream stream = new MemoryCacheSeekableStream(conn.getInputStream());
            TIFFDecodeParam decodeParam = new TIFFDecodeParam();
            decodeParam.setDecodePaletteAsShorts(true);

            /* mise en forme de l'��dition */
            Paper papier = new Paper();
            papier.setSize(595.2, 841.8);
            papier.setImageableArea(1.0, 1.0, 594.0, 840.0); // installation des marges

            Book book = new Book();
            PageFormat pageFormat = new PageFormat();
            pageFormat.setPaper(papier);

            ImageDecoder dec = ImageCodec.createImageDecoder("tiff", stream, decodeParam);
            int nbPages = dec.getNumPages();

 
            AffineTransform at = new AffineTransform(595.0/2592.0, 0, 0, 841.0/3508.0, 0, 0);

            for (int i = 0; i < nbPages; ++i) {
                RenderedImage op = dec.decodeAsRenderedImage(i);

                book.append(new Document(op, at, fenetre, impressionPage, langue), pageFormat);
            }

            /* page de "fin" */
            book.append(new Document(null, null, fenetre, impressionPage, langue), pageFormat);

            /* lancement de l'��dition */
            Doc doc = new SimpleDoc(book, flavor, null);
            dpj.print(doc, attributs);


-------------------------------------
In the Document class :

public class Document implements Printable {

    RenderedImage op = null;
    AffineTransform at;
    JFrame fenetre;
    JLabel impressionPage;
    String langue;

    Document(RenderedImage op, AffineTransform at, JFrame fenetre, JLabel jl, String langue) {
        this.op = op;
        this.at = at;
        this.fenetre = fenetre;
        this.impressionPage = jl;
        this.langue = langue;
    }

    public int print(Graphics g,  PageFormat pageFormat, int page) {

        if (this.op == null) {
            return(NO_SUCH_PAGE);
        } else {
            Graphics2D g2d = (Graphics2D) g;
            /* intallation dans l'espace d'impression */
            Double dx = new Double(pageFormat.getImageableX());
            Double dy = new Double(pageFormat.getImageableY());
            g2d.translate(dx.intValue(), dy.intValue());

            g2d.drawRenderedImage(this.op, this.at);

            int pageReelle = page + 1;

            if (this.langue.equals("fr")) {
                impressionPage.setText("Impression de la Page N�� " + pageReelle);
            } else {
                impressionPage.setText("Printing Page number" + pageReelle);
            }
            this.fenetre.repaint();

            return(PAGE_EXISTS);
        }
    }

}

---------- END SOURCE ----------

Release Regression From : 5.0
The above release value was the last known release where this 
bug was not reproducible. Since then there has been a regression.