If you would like to have different printer locations for each product variant, you should create matching products (with printer locations of your choosing) and then link each product to its corresponding product variant.
Combo example
When you link a product variant to a product, it will print at that printer location.
If you would like to have different printer locations for each product variant, you should create matching products (with printer locations of your choosing) and then link each product to its corresponding product variant.
Create a product for the variant value, where the printer location is set
2. Link the variant value to the product, for that variant to print at the printer location set in step 1
Size example
For example, if you have a pizza with the variants "large" and "small, you will need to:
Make a product called "Large pizza"; this may not actually be ordered on the POS, but it will be used to direct the printing
Set the appropriate printer location for large pizzas
Set the Product for your product variant "large"
This is because any product variant will use the printing attributes of the product selected within the variant value.
4. Sync all products on your POS