Samsung MultiXpress K4 Series Service Manual page 379

4. Troubleshooting
b) Push the pickup-lever and check if it operates correctly.
6) If the problem persists, replace the pickup drive unit2(JC93–00422A) or Pickup unit1(JC93-00512A).
(Refer to 3.3.13. Pick-up Drive unit)
(Refer to 3.3.22. Pick-up Unit and Sensor)
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