To discriminate from which or from whom a scramble print comes when the scramble print is observed and to prevent a missing image in the case of scrambling.

The information to identify a destination such as a telephone number of a destination facsimile equipment is not scrambled and recorded on recording paper together with a scrambled image (ST6). Since the image is scrambled after being reduced (ST11) and a guide line is inserted (ST13), missing picture elements are not concentrated onto an end of the image thereby reducing the deterioration in the image quality.