Patent ID: 7237968
Filing Date: 2007-07-03
Classification: B41J,B65H,Y10T

Abstract:
1. A thermally transcribing printer comprising: a frame made of a metal in a channel-like shape having one side face and another side face; a roller shaft made of a metal installed on an inner side of the frame and attached with a roller used for at least one of sheet charging and sheet discharging; a roller shaft drive gear made of a resin attached to one end of the roller shaft for rotating the roller shaft; a drive motor for driving to rotate the roller shaft drive gear; and a motor bracket made of a metal installed on an outer side of the one side face of the frame for attaching the motor, wherein: the motor bracket includes a through hole rotatably fitted with the roller drive gear; the frame includes a drawout preventing portion in a recess shape provided at the other side face of the frame and having a bottom portion fitted with another end of the roller shaft; the roller shaft made of the metal includes one end having a fold-bend portion bent in an L-like shape and the other end fitted to the drawout preventing portion in the recess shape of the frame; and the roller shaft drive gear made of the resin is integrally formed with a hook portion engaged with a portion of the roller shaft other than the fold-bend portion disposed at a vicinity of the one end of the roller shaft and having an opening width smaller than a diameter of the roller shaft for restraining the roller shaft from being detached in the bended direction, a pair of rotation preventing ribs for squeezing the fold-bend portion of the roller shaft, an inserting portion rotatably inserted into the through hole of the motor bracket, and a stepped difference portion formed at a root portion of the inserting portion and brought into contact with a side face of the motor bracket.