I have 3 Okidata printers that are track fed. They will require an adapter to be made use of on USB. These printers are made use of in billing and have a long life. They utilize a ribbon which is still readily available not a cartridge. One is an Okimate 240 and the others are Okidata Microline 321 which is the broad carriage.
The price is negotiable if you desire all 3. These are for sale locally and on Ebay. The sale will end 12 July '14 or before.