OKI M-64s roll printer.

Please read the advertisement. I purchased the shop with this printer, and the previous owner informed me that it works except for the "Russian" part. I don't need it and I don't understand anything about it. The working area is 170 cm. Does it have an agent? (I don't know) How much are spare parts? (I don't know) How much does maintenance cost? (I don't know) Everything I know, I've written here.