An imaging device comprising: an input roller assembly to transport a medium from an input tray towards an image-forming assembly ; and a line feed roller assembly disengagably coupled to the input roller assembly to selectively drive the input roller assembly , the line feed roller assembly comprising: a line feed shaft coupled to an actuator to obtain a drive from the actuator ; and a drive control assembly mounted on the line feed shaft to disengage the line feed roller assembly from the input roller assembly to stall operation of the imaging device , the drive control assembly comprising: a swing arm mounted on the line feed shaft , wherein the swing arm bears a transition fit on the line feed shaft ; a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft ; and an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member , wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly . an input roller assembly to transport a medium from an input tray towards an image-forming assembly ; and a line feed roller assembly disengagably coupled to the input roller assembly to selectively drive the input roller assembly , the line feed roller assembly comprising: a line feed shaft coupled to an actuator to obtain a drive from the actuator ; and a drive control assembly mounted on the line feed shaft to disengage the line feed roller assembly from the input roller assembly to stall operation of the imaging device , the drive control assembly comprising: a swing arm mounted on the line feed shaft , wherein the swing arm bears a transition fit on the line feed shaft ; a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft ; and an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member , wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly . a line feed shaft coupled to an actuator to obtain a drive from the actuator ; and a drive control assembly mounted on the line feed shaft to disengage the line feed roller assembly from the input roller assembly to stall operation of the imaging device , the drive control assembly comprising: a swing arm mounted on the line feed shaft , wherein the swing arm bears a transition fit on the line feed shaft ; a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft ; and an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member , wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly . a swing arm mounted on the line feed shaft , wherein the swing arm bears a transition fit on the line feed shaft ; a driving transmission member fixedly mounted on the line feed shaft to rotate with the line feed shaft ; and an engaging transmission member rotatably mounted on the swing arm and engaged with the driving transmission member , wherein the engaging transmission member is to engage and disengage from the input roller assembly by actuation of the swing arm to selectively drive the input roller assembly . <EOS>