Terry Woodson - who continues Vern Yocum's Music Service - demonstrates the use of the Ozalid printer.

An onion skin sheet is placed on top of a chemically sensitive paper and is fed through the machine's intake. Ammonia, poured into the machine, causes the paper to react to the onion skin. The onion skin is then forced out on to the middle tray and the copied sheet is deposited at the top. The whole process takes less than a minute.