■Ghost
<User Check>
-Check the machine's environment, conditions such as high or low humidity may cause this situation to occur.
-Check that the appropriate media type or size is selected in the printer driver.
-Replace the drum unit with a new one.
Step | Cause | Check | Result | Remedy |
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| HVPS PCB | Is the problem solved |
| Replace the HVPS PCB |
1 | failure | after replacing the | Yes | ASSY. |
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| HVPS PCB ASSY? |
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| Main PCB failure | Is the problem solved |
| Replace the main PCB |
2 |
| after replacing the main | Yes | ASSY. |
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| PCB ASSY? |
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■Fogging
<User Check>
-Replace the toner cartridge with a new one.
-Replace the drum unit with a new one.
-Do not use acid paper.
-Check if there is dust or paper powder in the machine.
Step | Cause | Check | Result | Remedy |
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| Toner sensor | Is the toner sensor |
| Replace the toner sensor |
| failure (Machine | performed normally by |
| PCB unit ASSY and the |
| body) | following the procedure | No | toner LED PCB ASSY. |
1 |
| in "4.10 Sensor |
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| HVPS PCB | Is the problem solved |
| Replace the HVPS PCB |
2 | failure | after replacing the | Yes | ASSY. |
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| HVPS PCB ASSY? |
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| Main PCB failure | Is the problem solved |
| Replace the main PCB |
3 |
| after replacing the main | Yes | ASSY. |
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| PCB ASSY? |
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CAUTION :
•This problem often occurs when the drum unit or toner cartridge is nearly at the end of life.
Confidential |