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7-3
TROUBLESHOOTING
Service Manual
7.1.5 Light Image
• Description
The printed image is light, with no ghost.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Check and Cause
Solution
1. Develop roller is stained when the toner
of toner cartridge is almost consumed.
2. Ambient temperature is below than 10°C.
3. Bad contact caused by the toner stains
between the high voltage terminal in the
HVPS and the one in the set.
4. Abnormal output from the HVPS.
(Run self-test and check 1~4)
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.
7.1.6 Dark Image or a Black Page
• Description
The printed image is dark.
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Check and Cause
Solution
1. No charge voltage in the engine board.
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. 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.
Summary of Contents for Phaser 3450
Page 12: ...3 4 Specifications Service Manual ...
Page 28: ...4 16 Summary of Product Service Manual ...
Page 75: ...6 20 Alignment Adjustments Service Manual ...
Page 103: ...7 28 TROUBLESHOOTING Service Manual ...
Page 129: ...9 2 BLOCKDIAGRAM Service Manual ...