MFC-B7700D
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常见问题解答与故障排除 |
Reset the Drum Counter
When you replace the drum unit with a new one, you must reset the drum counter by completing the following steps:
DO NOT reset the drum counter unless you are replacing the drum unit.
- Make sure the machine is turned on.
- Close the front cover.
- Press OK and the Up arrow key at the same time.
- Press OK to select Drum.
- Press the Up arrow key to reset the drum counter.
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