A professional who tends rotary printing press that prints data, such as brand name, trademark, content analysis, and weight on paper or textile bags. Responsibilities include:

• Inserts specified type into plates or selects previously prepared plates, according to data to be printed on bags, and slides plates into channels or slots on cylinder.
• Turns setscrews or uses wrench to lock plates onto printing cylinder.
• Pours specified color ink into ink reservoir.
• Positions supply of bags on press feed bed.
• Presses button to start press and moves lever or depresses pedal to activate rotary drum and feed mechanism, and feeds individual bags into press.
• Removes printed bags from discharge shelf of press and stacks bags in storage area according to data printed on bags.
• Cleans press, using solvent and rags.
• May tend press that prints two or more colors.