Abstract: In this invention, even if a thick resin coated recording medium having large heat capacity is used, a high quality image with an excellent gloss feeling is obtained. A transfer fixing device is provided with a press conveying mechanism which includes at least one pair of pressing bodies for nipping and conveying an image bearing and conveying body and a recording medium, and contact-conveys the recording medium on the image bearing and conveying body in a region exceeding a nip region of the pair of pressing bodies, and a heat supply adjusting mechanism which includes a heating source for heating the recording medium contact-conveyed on the image bearing and conveying body by the press conveying mechanism from both obverse and reverse sides to melt an unfixed image and a thermoplastic resin layer, and makes adjustment to cause heat supplied to an image bearing surface side of the recording medium to be more than heat supplied to a non-image bearing surface side of the recording medium.

Abstract: A laser scanner is disclosed, in which M, the lateral magnification obtained from the first and the second optical members, V.sub.1, the scanning velocity of the scanning beam on the beam receiving surface and V.sub.s, the velocity of the acoustic wave inside the acoustic beam modulator are substantially related by M=-V.sub.1 /V.sub.