Junk fax

A junk fax refers to unsolicited or unwanted advertisements and promotional materials sent via fax. Similar to junk mail or spam emails, junk faxes are typically sent in bulk to many recipients without their consent, often to promote products, services, or events. Junk faxes are considered a nuisance because they can waste paper, ink, and fax machine time. In many countries, the sending of junk faxes is regulated by laws that require senders to have explicit consent from recipients before sending such materials.