This is a used vintage TI-8230. All the functions seem to work-but honestly I don’t know the exact proper way to use the machine for financial calculations but it has the original guidebook/instructions. All the keys compute onto the LCD screen which raises and pivots nicely. There’s no signs of damage or drops to the unit and the cord is in excellent condition. The ink is printing light onto the roll- so it probably needs the ink roller replaced and they are readily available on the internet.