This is the Oki Microline 391 Turbo Dot Matrix Printer, a versatile and reliable printing solution for your home or office needs. With a 24-pin print head, it produces sharp and clear black and white prints and is compatible with both parallel and USB 1.0/1.1 connectivity options.
It belongs to the OKI Microline product line.
This is not fully tested. Selling for parts or repair but it may work just fine. I don't have paper to put in it. It powers on and cycles. I press the feed button and it works. I am not sure what the menu button does or if these functions work when hooked up to a computer or not.