Samsung CLP-510/XBH Service Manual page 140

8.4.10 Curved or Distorted Vertical Lines
Symptoms
Curved, wavy or distorted vertical lines.
Check and Cause
1. Use EDC Mode to test the LSU. Check that the
+24VCD signal between the main PBA and the LSU
is stable
2. Check that the LSU clock is stable.
8.4.11 Low Toner
Symptoms
"Ready Replace [Color]" is displayed on the LCD Panel.
Check and Cause
1. "Low Toner" is displayed when under 500page or
less toner remains (in any of the cartridges).
2. Check the condition of the contacts on the DEVE
PBA.
8.4.12 Replace Toner[CART].
Symptoms
LCD displays "Ready Replace [CART]".
Check and Cause
1. "Ready Replace CART" is displayed when the OPC
Image Count value is over 50,000. Image Density
may be reduced. It is possible to continue to print one
Page at a time by pressing the "On-Line" button when
it flashes.
Samsung Electronics
Solution
1. Replace the LSU or Main PBA.
2. Replace the Main PBA.
Solution
1. Using the keypad check which toner is empty and
replace the Toner Cartridge.
- Replace the Toner Joint PBA.
- Replace the Main PBA.
Solution
1. Replace the OPC Drum.
Troubleshooting
Service Manual
8-17