To provide a copying machine provided with a facsimile function capable of ending facsimile reception or performing printing, which allows grasping the printing contents even if double printing is performed when the surface to perform printing of recycle paper has been already printed.

Once an image has been received (S1), recording paper is carried from a paper feed tray (S2), the density level of the printing surface of the recording paper is checked by a black picture element density detector 8 (S3), and in the case a detected density level is lower than a low density level set beforehand, a printing image is formed by a black image (S4), printed and discharged (S7). If it is higher than the low density level, the judgement of a high density level set beforehand is performed further (S5), and if it is less than the high density level, the image to be printed is image formed in red (S6), printed and discharged (S7). In the case that it is higher than the high density level, a communication interruption report is formed by a red image (S9), printed and discharged (S10) and reception is forcibly ended (S11).