Huawei CD81-G Quick Start Manual page 17

6 Reset the drum cartridge: Press
code 99 shown on the numeric display. After the printer is initialized, the drum cartridge is reset
successfully.
7 Reset the toner cartridge: Press
code 66 shown on the numeric display. The printer will start to transfer the toner and make a
buzzing noise. After about 100 seconds, this buzzing will end, indicating that the toner cartridge
has been successfully reset.
and at the same time for 5 seconds until you see the
5s
and at the same time for 5 seconds until you see the
5s
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