What mechanism pulls the paper through a tractor-fed printer?

The tractor-feed mechanism is specifically designed to pull the paper through a tractor-fed printer. This type of printer utilizes a pair of sprockets that engage with perforations along the edges of the paper to ensure precise feeding. The tractor-feed system allows for consistent movement of the paper, which is essential for accurate printing and proper alignment of print jobs, especially on continuous form paper.

The use of sprockets not only helps in moving the paper but also keeps it aligned, reducing the risk of jams and misprints. This is particularly useful in applications that require printing on multi-part forms or labels, where precise feeding is critical. The tractor-feed mechanism is a key feature that differentiates these printers from other types, giving them unique capabilities that suit specific printing tasks.