A spirit duplicator, often referred to by the brand name “Ditto,” is a printing method that uses a master copy to create multiple copies of a document. These machines were commonly found in schools and offices before the widespread adoption of photocopiers and digital printers. A master sheet, coated with a special aniline dye, is created. When placed on the drum of the duplicator, the dye transfers to new sheets, producing copies. Finding these machines for purchase connects individuals or organizations with a piece of printing history and a low-cost printing solution.
Spirit duplicators offer a unique approach to printing, particularly attractive to those seeking simple, low-cost reproduction. Unlike modern printers, they do not require ink or toner cartridges. The cost is largely limited to the master sheets and the spirit fluid used in the process. This historical technology can be a valuable asset for small-scale printing needs or for educational purposes, demonstrating a printing technology predating modern methods. Moreover, the distinctive purple hue produced by spirit duplicators adds a nostalgic touch to printed materials.
