Samsung ML-1640 - Troubleshooting Common Issues

Service Manual
Alignment & Troubleshooting
4-18
Samsung Electronics
4.2 Troubleshooting
4.2.1 Checking Symptoms
Before attempting to repair the printer first obtain a detailed description of the problem from the customer.
Power On
Indicate
"Lamp toggle"
On-Line LED
Green OK?
Print(test pattern)
printing
Quality is
Nomal?
Refer to "Solution
of Image Problem"
Refer to
"Chapter 4.1.4"
END
- No Power
- Power Module error
- Main PBA
On-Line LED
ON?