A professional who tends machine that records variations in weight along sample strip of paper or other material. Respnsibilities include:

• Inserts end of sample strip into testing machine to obtain reading on graph of basic weight of sample.
• Turns dial to bring weight indicator to center line on graph to calibrate machine for weight of material tested.
• Starts feed rolls that carry sample strip through machine to record variations in weight of material on graph.
• Calculates percentage of variation in material weight, using formula or chart.
• Fills machine ink reservoir, using dropper.