Samsung ProXpress C3060 Series Service Manual page 159

5) Blank Page
• Description : Blank page is printed.
Cause and Check Point
Bad contacts from OPC drum and/or toner cartridge to
ground.
Not working the LSU.
Not working the developing bias voltage on HVPS.
6) Uneven Density
• Description : Print Density is uneven between left and right.
Cause and Check Point
The rear cover is not closed correctly.
The life of the Toner Cartridge has expired.
The pressure force in the left and right springs of the ITB
unit is not even.
Copyright© 1995-2017 SAMSUNG. All rights reserved.
Solution
Check the terminal of Ground-OPC.
Check the connector of LSU.
Replace the defective HVPS.
NOTE
HVPS output information
-
If the output for MHV, DEV is abnormal, replace
the HVPS1 (JC44–00242A).
-
If the output for 1THV, 2THV is abnormal, replace
the HVPS2 (JC44–00243A).
Solution
Open and remove the rear cover correctly.
Replace the corresponding toner cartridge.
Replace the ITB Unit
4. Troubleshooting
4-83