A professional who tends paper-cutting machine that cuts edges of bound and unbound books, periodicals, catalogs, and directories to specified size for binding and rebinding. Responsibilities include:

• Reads instructions on worksheet to ascertain machine setting requirements.
• Inserts or replaces knives in trimmer and adjusts guides to trim head (top), tail (bottom), and fore (front) edges of book to specified dimensions, and locks sections in place.
• Starts machine for test run, and examines finished book body to ensure finished sample meets job order specifications and book body sample.
• Loads book bodies into feed receptacle of machine.
• Starts machine and observes operation.
• Examines book bodies to ensure specifications are met.
• Observes operation of machine during production run.
• Stops machine when machine malfunctions and adjusts knives and guides as required.
• Replenishes supply of book bodies periodically.
• May tend manually operated trimmer, jogging book bodies to align edges and placing book body against three sections of guide in turn to trim three edges of book.
• Depresses treadle or lever to clamp cut edges at each position.
• May be required to watch for colored markers between pages that indicate narrow margins and foldouts when positioning edges of book bodies against guides.
• May stack books as they are trimmed.
• May operate cutter to cut cardboard, paper, or book covers to specified size.
• May push cart stacked with books to next work station.