A check processor manages the check processing functions at a bank or financial institution. Your responsibilities include encoding information at the bottom of checks, payment coupons, and deposit slips. Once you encode the check, machines debit or credit the proper accounts with the correct amount of money. Your duties include maintaining proof and documentation of fraudulent behavior and notifying proper authorities when a checks bounce. It is also important that you look for errors on checks and take steps to fix the situation, which includes contacting the customer.