Printing from PC

[MapleE.]

Hi:
I saved photos using Digital Camera.
My printer is 'HP Photosmart 3300 All-in-One series.'

I printed one of photos, but it came out 'letter size,' not 4 x 6.5
I wanted, even though I put 10 4 x 6.5 photo paper in pot tray.

My question is:
How to print 4 x 6.5 photo paper using XP?

Thanks for your help in advance.

 

[MapleE.]

Just now, I found the solution to this through errors and trials.