PURPOSE: To prevent mis-feeding of papers by constructing a receiving member of recording papers to be inclined against the direction of paper feeding by an elastic member.

CONSTITUTION: A recording paper receiving member 27 with a fixed inclination angle against the direction of paper-feeding is constructed to be inclined at a right angle to the paper-feeding by bringing it to be in touch with a cam member 30 to be rotated by an elastic means 35a for using only the inclination against the direction of paper-feeding at the time of the feeding of recording papers. This very simple construction permits to prevent the accident when recording papers are conveyed, and obtain correct duplication at a fixed position on the rear side of recording papers.