a machine supplied by a post office to an organisation to imprints stamps on their letters is?

The machine that a post office provides to an organization to imprint stamps on their letters is called a franking machine. It is used to print postage on mail items such as envelopes, packages, and labels. It can calculate the correct amount of postage required based on the weight, size, and destination of the mail. The franking machine can also track the postage expenses of the organization and provide reports for accounting purposes. Using a franking machine can save time and money by avoiding the need to purchase and affix stamps manually.