The new ATMs employ scanning technology to detect the value of cash bills by reading the surface. Similarly, the machine can scan the account information and dollar amount from the face of checks. Cash and checks are separated into stacks and fed into designated slots of the ATM for deposit. There’s no need to scan each bill or check individually, although the initial process is similar to inserting a bill into a change machine. The ATMs can handle stacks of several bills or checks at a time.