Addressing Question

I am getting ready to address close to 100 invitations for my parents` 50th wedding anniversary vow renewal and reception. My question is this, would it be in bad taste if I print the invited guests names on my printer or should they all be hand written? It is obviously much faster and easier if I print them out, and I don`t mean labels, I want to print on the invitations directly.

Thanks,

Terri