What is a "Grafstar" Apple ][ Card?

[tevion5]

I recently bought an Apple ii Plus with a disk ii drive and apple iii monitor (including stand).The plus has a few different cards in it.

A language card with additional RAM.
The famous "Z80" Card.
A disk controller.

And, a "Grafstar" card by "Star Micronics".

Can anybody identify what this card does? I can find literally 0 results about it on google.

(Funny enough the seller was unaware of its function also. There is one for sale seperatly on eBay but that seller has posted no description at all)

 

[DZ/015]

It is a printer interface card. Star made printers way back when.

 

[tdiaz]

It's a parallel printer card. The cable is straight through from the header to the centronics connector, if your missing it.

More specifically, it's a graphics compatible printer card. It's got some extra features, but generally is Epson APL compatible. I've got a few of them with documentation.

 

[tevion5]

Brilliant, thanks for the answers guys! It was annoying me not knowing what it did.