Also called Caster Operator and Mono Caster operators the monotype casting machine, which casts and assembles type automatically, guided by the perforations in the paper rolls prepared by monotype operators. New type is made for every job.
The roll of paper, perforated by Mono Operator, is fed into the mono-type casting machine; the composing stick is set to the required length; matrix case of required size-of type is inserted and galley is locked on bed of machine. Molten type metal is forced into the matrix (die) to form the individual letters. The operator ensures that the metal pot is adequately supplied with metal and that proper temperature of molten metal is maintained.
When machine is started, proper matrices (dies) for casting the letter are automatically selected by means of perforations on the tape.
His duty is not only to set up the caster machine, but also tend it while it is operating and to look after its necessary maintenance and repairs.