Patent ID: 7164872

Claim:
A copying machine comprising: a storing portion that stores a value with n (n≧2) digits, the n digits having a range from a first digit to an nth digit on a left side of the first digit, wherein the value indicates a number of copies to be made; a number input portion capable of inputting numbers; a copy start input portion capable of inputting an instruction to start copying a document; a copying portion that copies the document based on the value stored in the storing portion when the instruction to start copying is input; and a controller that: performs a set process when a new number is input via the number input portion, wherein the value is set such that the new number is newly set as the first digit on a right side of the value and at least one previous number at an ith digit (1≦i) of the value is newly set as a (i+1)th digit from the right side of the value and the value that has been set is stored in the storing portion; and performs a resetting process when the new number is input via the number input portion after an operation is performed other than by inputting the new number and up until a time when the instruction to start copying the document is input, wherein the value stored in the storing portion is deleted and the new number input via the number input portion is stored in the storing portion as the first digit of the value.