Dual image forming apparatus and method of using same

摘要

An image forming apparatus includes a first printing unit which forms a first image on a sheet with a first printing material and fixes the first image thereon by heat application; and a second printing unit which forms a second image with a second printing material on the sheet having the first image formed by the first printing unit, and fixes the second image thereon by heat application; the second printing material has a lower melting temperature than the first printing material and the second printing unit applies a lower temperature heat for fixation of the second image than the first printing unit.