The feed roller assembly consists mainly of a feed roller that is driven by the feed motor, a pinch roller unit that follows up the motion of the feed roller and so on.

Paper is fed horizontally under the printhead on the carriage as it is kept level on the platen to prevent heaving.

b) Sensors

The feed roller assembly includes a feed status detection sensor and paper passage mechanical component status detection sensors.

c) Roll media rewind drive unit

The paper feed unit is provided with a roll media rewind drive to prevent paper from slacking during roll media feed. The rewind drive turns on the roll media

rewinding clutch to rewind the roll media.

The roll media rewinding clutch can be turned on only when the roll media is fed during the backward feed. The feed motor rotates the roll holder to rewind the roll

media. During the forward feed, the roll media rewinding clutch is held off.

Pinch roller

Paper release lever

Printhead

Roll media

Feed roller

Roll holder

Feed roller HP sensor

Feed motor

Feed roller encoder sensor

Roll media rewinding clutch

F-2-22