A professional who tends automatic printing machine that prints identifying symbols and numbers on semiconductor packages. Responsibilities include:

• Refills ink or paint reservoir.
• Inserts printing plate or type block in printing machine.
• Places semiconductor package on holding fixture in printing machine or places tube containing semiconductor packages in loading device of automatic printing machine.
• Flips switch or depresses pedal to print symbols and numbers on semiconductor circuit packages.
• Visually inspects package markings to identify misprints.
• Cleans and reprints packages, using cleaning solution and cotton swabs.
• Places printed semiconductor packages in trays.
• May set type on type block, using tweezers.
• May place printed packages in oven to dry or set ink.