The paper feed assembly consists of paper feeding mechanisms, such as a feed roller that is driven by the feed motor and a pinch roller unit that follows up the

motion of the feed roller.

Paper feeds horizontally under the printheads on the carriage as it is kept level on the platen to prevent cockle.

b) Sensors

The paper feed assembly includes sensors for detecting the status of paper feeding and that of the mechanical components that make up the paper passage.

For more details, see TECHNICAL REFERENCE > Detection Functions with Sensors.

c) Roll media spool drive

The paper feed assembly is complete with a roll media spool drive unit to prevent roll media from slacking as they feed. The roll media spool drive unit rewinds

roll media by turning on the spool clutch. The spool clutch turns on only when roll media feed rearward. Driving force is imparted from the feed motor to rotate the

roll holder for rewinding the media. The spool clutch remains off when roll media feed forward.

Pinch roller

Media sensor

Feed roller

Printhead

Roll media

Release lever

Feed motor

Roll holder

Spool clutch

Feed roller encoder

Feed roller HP sensor