A professional who operates billing machines with or without computing devices to prepare bills, statements, and invoices to be sent to customers, itemizing amounts customers owe. Responsibilities include:

• Inserts blank billing sheets in machine and sets carriage.
• Transcribes data from office records, such as customer's name, address, and items purchased or services rendered.
• Calculates totals, net amounts, and discounts by addition, subtraction, and multiplication, and records computations.
• May make computations on separate adding and calculating machines.
• May be designated according to type of bill prepared as Delinquent-Notice-Machine Operator.