Problems printing a grid

Question

Hi,
I'm trying to print a 1mm X 1mm grid in a paper.
I'm using Java2D to print the lines. This is the code snippet which draws the lines:
     /** Pixels/millimeter ratio */
     public final static double PRINT_PIXELS_PER_MILLIMETER = (72.00 / 25.40);
          g2d.setStroke(new BasicStroke(0.3f));
          int counter = 0;
          for (double x=bounds.x;x<=bounds.x + bounds.width;x+=PRINT_PIXELS_PER_MILLIMETER) {
               g2d.setColor(((counter % 5 == 0) ? Color.GRAY : Color.LIGHT_GRAY));
               g2d.draw(new Line2D.Double(x,bounds.y,x,bounds.y + bounds.height));
               counter++;
          counter = 0;
          for (double y=bounds.y;y<=bounds.y + bounds.height;y+=PRINT_PIXELS_PER_MILLIMETER) {
               g2d.setColor(((counter % 5 == 0) ? Color.GRAY : Color.LIGHT_GRAY));
               g2d.draw(new Line2D.Double(bounds.x,y,bounds.x + bounds.width,y));
               counter++;
          }The grid prints OK into ink printers, but when I try to print the grid in laser printers, some lines appear greater than others and the grid appears visually antiesthetic.
I've tried to do it with a background image. The problem I have is if I create the image at 72dpi, the grid paints ok but the lines are too thick. Then I created a 300dpi image and draw it, but then the grid lines were drawn too separated the ones from the others (a lot more than 1mm). If I re-scale the 300dpi image in the paint routine, then I have the same problems than when I was drawing the lines.
By the way, the laser printer has more than enough resolution to paint the 300dpi grid correctly. If I print the image directly from photoshop, it is printed perfectly with 1mm separation b/w lines.
Anyone knows how can I solve that?

Answer 1

Hi, make sure you are using the latest release of PDF program.
Please mark the post that solves your issue as "Accept as Solution".
If my answer was helpful click the “Thumbs Up" on the left to say “Thanks”!
I am not a HP employee.