f Put the new toner cartridge firmly into the drum unit until you hear it lock into place. If you put it in correctly, the lock lever will lift automatically.
Note
Make sure that you put in the toner cartridge correctly or it may separate from the drum unit.
g Clean the corona wire of the drum unit by gently sliding the blue tab from right to left and left to right several times.
Troubleshooting and routine maintenance
i Close the front cover.
Note
DO NOT turn off the machine or open the front cover until the LCD returns to the standby state.
1
Note
Be sure to return the blue tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
h Put the drum unit and toner cartridge assembly back in the machine.
C
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