World's Largest Buyer and Seller of Previously Owned High Volume Color Machines. Digital Printers, and Digital Copiers. With 30 years experience, JJ Bender is known as a market leader in the office automation equipment industry, and specializes in digital press and high volume printing equipment.Whether you are a large operation, small store, or a start-up venture, JJ Bender draws on their expertise in printing equipment to help clients meet their individualized needs. JJ Bender also offers the following services: leasing program, rental program, trade-in and upgrade program, workflow solutions, financial consulting, and self-service consulting.