Genuine OEM Lexmark Formsprinter 2381 Plus Toners
The 3070166 black ribbon for the Formsprinter 2381 Plus has a character-based life rating. How many pages that covers depends on how much text you print on each one, rather than a fixed allowance of forms or documents.
At Toner Buzz, you'll find genuine Lexmark 3070166 and 11A3540 standard ribbons for this model. Both are ribbon supplies for the Formsprinter, rather than toner cartridges.