In laser printing, what is the function of the fuser?

The correct answer is linked to the fundamental role of the fuser in the laser printing process. The fuser's primary function is to apply heat and pressure to the toner particles on the paper, effectively melting the toner and ensuring it adheres permanently to the paper's surface. This process is critical for producing a clean, smudge-free print that is resistant to smearing, as the melted toner bonds to the fibers of the paper when cooled.

In laser printers, the fuser operates after the toner has been applied to the paper and the image has been developed, ensuring that the final printed output is of high quality. The temperature and pressure applied by the fuser also help to fix the image properly on the paper, which is why this component is essential in the overall printing mechanism.

This understanding reinforces the significance of the fuser in the printing process, highlighting its crucial role in achieving a durable and high-quality printed document.