A professional who operates machine to perforate paper tape used to control casting type. Responsibilities include:

• Clips copy containing instructions to copyholder.
• Selects and installs bank of keys to make specified size and style of type.
• Sets and locks scale for indicating spacing of words in line, adjusts line-length indicator, and installs roll of paper strip, threading end of strip through machine.
• Admits compressed air to machine.
• Tears strip loose from supply roll, attaches type-casting instructions to reel, and forwards reel for casting type.