Samsung CLX-9201 Service Manual page 432

4. Troubleshooting
21) Machine can not feed the paper.
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Symptom : The machine can not feed the paper from Tray1 or Tray2.
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Cause :
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Feed motor problem
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Feed motor connection problem
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Main board defect
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Troubleshooting
1) Check the Feed motor operation.
a) Open the side cover, and push the cover switch with paper forcibly.
b) Enter the service mode.
(Press the 1, 2, 3 keys simultaneously and enter the password (1934).)
c) Select the menu below.
(EDC Mode > Diagnostics > Engine Diagnostics > Engine Test Routine > Feed motor > on/off )
Check the two feed rollers operating status.
d) If the feed rollers can not rotate, open the rear cover and check the motor and gears.
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