Patent ID: 8128087
Filing Date: 2012-03-06
Classification: B41J

Abstract:
1. A power transmitter of an image forming apparatus having an image forming unit, the power transmitter comprising: a plurality of feeding roller rotation shafts rotatably mounted at certain distances from one another and forming a feeding path of a print medium by a plurality of feeding rollers which are coaxially mounted therewith and feed the printing medium toward the image forming unit; a plurality of feeding idle rollers mounted at an upper part of the feeding path to rotate in contact with the plurality of feeding rollers; a driving unit comprising a driving motor and a driving gear train, the driving gear train transmitting power directly from the driving motor to only one of the plurality of feeding roller rotation shafts; and a feeding gear train disposed below a part of the feeding roller rotation shaft receiving power from the driving motor between the driving gear train and the feeding roller thereof to transmit a rotational force of the one of the plurality of feeding roller rotation shafts being rotated by the driving unit to another feeding roller rotation shaft, wherein the feeding gear train is located between the plurality of feeding rollers and the driving gear train in a direction orthogonal to the sheet feeding direction at a point closer to the plurality of feeding rollers.