Tend keying machines that print coded data on paper stock.
What does a Keying Machine Operator do?
Tends keying machine that prints coded data on paper stock used to promote sale of magazines: Ascertains stock and code information to be used. Removes printing head from keying machine, inserts specified type in holder, and replaces head. Adjusts machine for size of stock and loads stock in paper guides on machine table. Starts machine that automatically prints code, and observes operation to determine whether print is legible. Removes processed stock from machine.