I remember the first time I went to Walmart to use their machine to copy pictures so I could do scrap-booking. I was going along and the man behind the developing desk came around and took my copies and tore them up! He threw them in the trash can inside the booth. I asked him why he did that and he told me I was infringing on copyrites. I was confused for sure. He told me I didn't take the pictures I was copying and they had stamps on them of the owners of the photos. I referred to the Olan Mills ones and asked "Do you mean these?" and he said yes. I told him they were over 30 years old and the company was moved away. He felt bad then...I had such a hard time with that though.
I think most of these places do a fine job on the copies nowdays. I have a color printer but it's so much work and takes so much of one color or another of ink. It's lucky for us that they do these copies at reasonable prices now.