As the Original Equipment Manufacturer (OEM) of its manual check writing, check imprinter and check protector equipment, Paymaster has the ability to maintain the highest standards of quality and manufacturing tolerances with regard to the exacting security aspects of negotiable document imprinting. This self assurance and confidence allows Paymaster to include, with every new check protection system sold in the U.S., a renewable two year Maintenance Agreement, and a $100,000 Manufacturer's Certificate of Guaranty against forgery and check alteration when issuing documents with our check writers, check imprinters or other check protection equipment.