We use a monitor in order to bump individual items as opposed to keeping the printer receipt posted until the whole order is made. With the cost of paper/ribbons I have to imagine using a monitor is far cheaper in the long run.
When an order is taken our system sends numbered, self adhesive labels to one of 3 different kitchen printers. We prepare the food item (pizza, appetizer, wings, whatever) and then stick the label on the appropriate box. The address is also printed on the label, as well as 1of 3, 2 of 3, etc so we know how many items are in the order. The system works very well for us.
I use Revention and you can set the makeline display to bump full orders or single items. You can have multiple stations and use a combination of displays and tickets. I did that at my sub shop for front end/back end as we baked the subs then finished them.