Patent ID: 7244072

Claim:
An apparatus for recording an image on a sheet medium, comprising: a) an entrance drive roller paired with a corresponding entrance pressure roller to form an entrance nip for transporting the sheet medium into an image recording section; b) an image recording section comprising a write head for recording on a portion of the sheet medium being transported between the entrance nip and an exit nip; c) the exit nip formed by an exit drive roller paired with a corresponding exit pressure roller, for transporting the sheet medium out of the image recording section; d) a motor for providing rotary motion; e) a coupling apparatus for coupling rotary motion between the exit drive roller and the entrance drive roller, the coupling apparatus comprising: i) a coupling roller elongated in a width dimension of the sheet medium; ii) a loading mechanism providing a loading force to nest the coupling roller into continuous rotational contact against the entrance and exit drive rollers; whereby rotation is transferred between the exit drive roller and the entrance drive roller by the coupling roller; and wherein the coupling apparatus further comprises a counter roller coupling the exit drive roller with the entrance drive roller.