Samsung CLP-770ND - Common Printer Problems and Solutions

Alignment & Troubleshooting
Service Manual
4-42
Samsung Electronics
4.2.5 Common Problems and solutions
No Power
Step Cause and Check Point Yes No
1
Check that the power code is plugged into
electrical outlet. Is it plugged?
Go to step2 Plug the power code.
2 Is the on/off switch in the ON position? Go to step3 Turn the switch on.
3
Check if the power input and SMPS
output are normal. Is it normal?
Go to step4 Replace the SMPS.
4 Check the LCD panel. Is it normal?
Replace the OPE PBA or
the Main PBA.
Replace the LCD panel.
Description
When system power is turned on, the printer does not warm up or LCD panel is blank.
Poor fusing
Cause and Check Point Solution
The media doesn’t meet specication Use the proper media in specications.
Fuser is defective Replace the fuser unit.
FDB (Fuser drive board) is defective. Replace the FDB.
Description
Toner is not properly xed on paper.