One of the things about printing cells that no one has been bringing up is magnetism.
Putting a cell in certain kinds of magnetic fields causes changes in the cells.
I believe you will find one that can take apart and put together cells.
A lot of the revolutionary medical stuff in the near future will be the application of magnetics for healing.
Baby steps. First we need to gain the ability to provide our own medications. Then we can improve those medications, with that leisure not having to slave away for others avails us.