Light Image - Xerox Phaser 3450 Service Manual

7.1.5 Light Image

• Description The printed image is light, with no ghost.
Digital Printer
1. Develop roller is stained when the toner
Digital Printer
Digital Printer
Digital Printer
2. Ambient temperature is below than 10°C.
Digital Printer
3. Bad contact caused by the toner stains
4. Abnormal output from the HVPS.
7.1.6 Dark Image or a Black Page
• Description The printed image is dark.
Digital Printer
1. No charge voltage in the engine board.
Digital Printer
Digital Printer
Digital Printer
2. Charge voltage is not turned on due to
Digital Printer
3. VD0 signal of the Main PBA is Low state.
Check and Cause
of toner cartridge is almost consumed.
between the high voltage terminal in the
HVPS and the one in the set.
(Run self-test and check 1~4)
Check and Cause
the bad contacts between power supply
in the side of the Toner cartridge and
charge terminal of HVPS.
TROUBLESHOOTING
Solution
1. Check if the Toner Save mode is off.
2. No 1 : Replace the toner cartridge and try
to print out.
3. No 2 : Wait 30 minutes after printer is pow-
ered on before you start printing.
4. No3 : Clean up the contaminated area by
the toner.
5. Replace the HVPS if the problems are not
solved by the above four instructions.
Solution
1. Clean the high voltage charge terminal.
2. Check the state of the connector which
connects the engine board and HVPS.
3. Replace the HVPS if not solved by the
above direction 1 and 2.
4. Replace the LSU Unit or Main PBA.
Service Manual
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