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.