Centering a picture for Printing

I’m trying to print an old damage photo that I had to cleaned up. The size of the photo 5x7 I’m printing on a Dell 944 ink jet. When I first printed I let paper size be
8.5 X 11 and centered the image. In the view window for page setup I chose 100% and it looked centered. But after printing the image it was not centered. I used mm and divided
45mm on left and 55mm on right to set the measurements to 50mm on left. Then printed again this time the image was centered one the 8.5 X 11. Does Photo Shop really center or should it be done manually after a test print.

Hi Reese,

As I've never actually checked the accuracy of a centered print yet always thought they appeared centered to my eye, I quickly checked this on my Epson R1800 printer. In PSCS2 I created a new image sized at 6.5x9 inches, selected the entire area, gave it a 10px stroke, an printed it centered. Measuring the margins around the printed box, it was centered.

So, the differences you're seeing may be printer specific and a factor of how the print driver interacts with Photoshop. Keep in mind that some printers do have a minimum print margin that isn't always an equal amount on all sides, so perhaps that is what is affecting you. I assume the same is true of my R1800 if I don't have the "borderless" option selected, so that means the print margins were accounted for when I printed the centered image.

Regards,

Daryl

I tried borderless that was only off by an mm it centers much better than using non borderless.

Thanks