Dell 1135N Service Manual - Page 107

Dark Image or a Black

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Alignment and Troubleshooting 6) Dark Image or a Black Page Description : The printed image is dark. 1. No charge voltage in the engine board. Check the state of the connector which connects the engine board and HVPS. 2. Charge voltage is not turned on due to the bad contacts between power supply in the side of the Toner cartridge and charge terminal of HVPS. 1. Clean the high voltage charge terminal. 2. Replace the HVPS if not solved by the above direction 1 and 2. 3. VD0 signal of the Main PBA is Low state. Replace the LSU Unit or Main PBA. Service Manual 4-34

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Alignment and Troubleshooting
4-34
Service Manual
6) Dark Image or a Black Page
Description :
The printed image is dark.
2. Charge voltage is not turned
on due to the bad contacts between
power supply in the side of the Toner
cartridge and charge terminal
of HVPS.
3. VD0 signal of the Main PBA is Low state.
1. No charge voltage in the engine board.
Check the state of the connector
which connects the engine board
and HVPS.
1. Clean the high voltage charge
terminal.
2. Replace the HVPS if not solved
by the above direction 1 and 2.
Replace the LSU Unit or Main PBA.