Orange the unaffected gene
Blue the affected gene
Both parents must pass on an affected gene for a chance of getting albinism in this case. That's what you call it recessive inheritance.
One parent (no albinism) the other parent (does have albinism). They have 4 children. They all have the albinism gene and can pass on the albinism gene again, but they don't have albinism.
All children are carriers of the albinism gene.
Disclaimer:
I am not a doctor or researcher just a mandarin in the bowl with other mandarins. If you have any medical questions, please see a doctor.