7.OTHERS PROBLEMS
■The machine is not turned on, or the LED indication does not appear.
Step | Cause | Check | Result | Remedy |
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| Harness | Is the harness of the |
| Reconnect the panel PCB |
1 | connection | panel PCB ASSY | No | ASSY harness. |
failure of panel | connected correctly? |
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| PCB |
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| Panel PCB | Is the problem solved |
| Replace the panel PCB |
2 | failure | after replacing the panel | Yes | ASSY. |
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| PCB ASSY? |
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| LVPS PCB failure | Is the problem solved |
| Replace the PS PCB unit. |
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| after replacing the PS | Yes |
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| PCB unit? |
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| Main PCB failure | Is the problem solved |
| Replace the main PCB |
4 |
| after replacing the main | Yes | ASSY. |
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| PCB ASSY? |
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■The fan does not work.
Step | Cause | Check | Result | Remedy | |
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| Harness | Is the harness of the fan |
| Reconnect the harness of | |
1 | connection | motor 60 ASSY | No | the fan motor 60 ASSY | |
failure of the fan | connected correctly? | correctly. | |||
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| motor 60 ASSY. |
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| Toner sensor | Is the problem solved |
| Replace the toner sensor | |
2 | PCB failure | after replacing the toner | Yes | PCB ASSY. | |
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| sensor PCB ASSY? |
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| Main PCB failure | Is the problem solved |
| Replace the main PCB | |
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| after replacing the main | Yes | ASSY. | |
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| PCB ASSY? |
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