In a mailing machine including a postage meter and a housing for supporting the postage meter, wherein the mailing machine includes means for individually feeding sheets in a path of travel through the machine, wherein the postage meter includes rotary means for printing indicia on the sheets; and wherein the postage meter includes a roller spaced downstream in the path of travel from the rotary printing means, an improvement in the sheet feeding means, the improvement comprising: an impression roller and a shaft on which the impression roller is mounted for rotation therewith; an ejection roller and a shaft on which the ejection roller is mounted for rotation therewith; an elongate carriage including a pair of side walls spaced apart from each other, one end of each of the side walls including an arcuately-shaped portion pivotally attaching the carriage to the housing and forming a generally C-shaped bearing bushing; the ejection roller shaft rotatably mounted with the bearing bushings for supporting the ejection roller beneath the postage meter roller; the impression roller rotatably connected to the carriage side walls for supporting the impression roller beneath the rotary printing means; means for rotating the ejection roller shaft and the impression roller; and a spring connecting the other end of the carriage to the housing to permit the carriage to pivot downwardly about the ejection roller shaft against the force exerted by the spring as the ejection roller shaft rotates within the bearing bushings, thereby permitting mixed thickness sheets to be individually fed between the rotary printing means and impression roller.