Original Return Drive - Samsung MultiXpress K4 Series Service Manual

2. Product Specifications and Description

2.11.3.5. Original Return Drive

Basically, the solenoid works at only duplex mode.
At Duplex Mode, when the motor rotates inversely, the solenoid is on and the GEAR-CAM OUTER and GEAR-EXIT are
driven.
When the GEAR-EXIT rotates, the solenoid drives the GEAR-CAM and it makes the space between the Roller-Exit and
Idle Roller.
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