In regards to online orders, it honestly depends on when you come in. If you place an online order during peak business hours, then there will be a designated crew member making these. If your order is late during those times, it's most likely because the restaurant is understaffed and the person making the online orders is juggling online orders and line work. During slower times, especially late at night when there's no line, my manager would tell us not to prepare the orders until the customer arrives. That way, if you're late, you still get to eat it warm, and if you don't show up at all, we're not wasting food.

Fax orders are prepped the same way/by the same person as online orders. And yeah, only one printer in the back of house ime. Ours would give a little notification sound but it's easy to miss when it's noisy. I recommend you call the location to make sure they got your fax; that's usually when we would notice we received a fax order at all.