A professional who monitors and controls electronic computer system used in phototypesetting. Responsibilities include:

• Sets control switches on optical character reader, computer, or phototypesetter.
• Inserts command codes to integrate and operate equipment according to data requirements specified in mark-up instructions.
• Selects and loads input and output units with materials for operating equipment.
• Moves switches to clear system and start operation of equipment.
• Observes equipment and control panels on consoles for error lights, messages, and machine stoppage or faulty output.
• Notifies superior of errors or equipment stoppage.