PURPOSE: To prevent a copying sheet from being contaminated, by smoothing the protuberance of a binding part of the copying sheet by a contact pressure of an auxiliary rotating body making contact with the peripheral surface of a rotating body such as a sheet-feeding roller.

CONSTITUTION: A sheet guide 16 for defining a passage for a sheet 1 and a pinch roller 17 for bringing the sheet 1 into contact with a sheet-feeding roller 10 serving also as a platen roller to thereby providing a feeding force by friction are disposed on the lower side of the roller 10. A sheet-pressing roller 19 for bringing the sheet 1 into close contact with the peripheral surface of the roller 10 and determining a discharging direction for the sheet is provided on the downstream side of a recording head 12 and in proximity to the roller 10. Each of the pinch roller 17 and the sheet-pressing roller 19 is pressed against the surface of the roller 10 with a predetermined pressure by a spring. Accordingly, when the copying sheet 1 is passed through the pinch roller 17, protuberance of a binding part 5 of the sheet is smoothed by the contact pressure of the pinch roller, whereby a predetermined gap is secured between the sheet and a ribbon mask 15, and the sheet is prevented from being contaminated.