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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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 ASSY. |
1 | body) | following the procedure | No |
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| Mode" (Chapter 5). |
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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 |