Abstract: An improved fusing machine is disclosed. Improved conveyor apparatus, conveyor belt guide apparatus, conveyor belt cleaning apparatus and oven apparatus are additionally disclosed, one or more of which can be utilized in a fusing machine. The preferred fusing machine is a return-to-operator machine in which feed and discharge conveyors for the oven are superposed, at least the upper conveyor preferably being transparent. The disclosed conveyor apparatus includes direction reversing apparatus, apparatus for adjusting the length of a conveyor and conveyor apparatus in which articles are resiliently engaged between and transported by opposed conveyor belt surfaces. A disclosed oven apparatus comprises resilient heating apparatus.