Samsung Lazett Combo SCX-4216F, Service Manual

Page: 90 / 135

7-8
TROUBLESHOOTING
Samsung Electronics
Service Manual
7.2.8 Defective Motor operation
• Description
Main Motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'.
Check and Cause Solution
1. Motor harness or sub PCB may be defective.
2. Perform Engine Test Mode diagnostic code 0 and Check
the Motor operation.
1. Check the Motor harness, replace it, if defective.
2. Replace the SMPS, if necessary.
7.2.9 No Power
• Description
When system power is turned on, all lamps on the operator panel do not come on.
Check and Cause Solution
1. Check if the power input and SMPS output are normal.
2. Check for defective of LED-Panel on the front-cover if the
LED of Panel does not appear after normal warming-up.
1. Replace the power supply cord or SMPS.
2. Replace the control board.
3. Replace the LED-panel.