in an image forming apparatus , and related method of forming an image , having a copy function , a printer function , and a facsimile function , when the absence of the toner is detected , a copy or a data print from a computer is inhibited but a recording of an image which was facsimile received is permitted . thus , a situation such that the facsimile reception cannot be performed due to the absence of the toner at night or the like is prevented .