Description: This pull tractor includes the tractor assembly and a special, high-top access cover. The pull tractor is required for feeding continuous-form paper or labels from the bottom of the printer. You can also use the pull tractor together with the built-in push tractor for feeding paper in from the rear to provide more precise paper control.Features:Handles all your demanding printing applications Use with bottom feed for continuous forms, labels and invoices Comes with an acoustic cover for even quieter operationSystem Requirements: For ML-391Technical Information: Product Type - Printer pull tractor Package Type - Retail Media Type - Perforated plain paper