Brother DCP-L8400CDN Service Manual page 455

2.2 Drum Cleaning
<Function>
This function is to attach a special cleaning sheet on the drum unit and perform the cleaning of
the drum.
<Operating procedure>
(1) Press the
(2) Press the All Settings key.
(3) Press the
(4) Press the
(5) Hold down any of the keys in the ten-key pad, which is OFF, for approximately 0.5
second.
Then, the ten-key pad is displayed.
(6) Hold down the * key for 5 seconds or more. "Attach the cleaning sheet. Please refer to the
included instructions." is displayed on the LCD.
(7) Open the front cover, take out the drum unit, and attach the cleaning sheet on the drum
unit. (For the method of attaching the cleaning sheet, refer to the insertion of the cleaning
sheet.)
(8) Put the drum unit back in the machine and close the front cover. "Please wait" is displayed
on the LCD, and then drum cleaning starts.
(9) When drum cleaning is completed, "Drum Cleaning completed. Remove the cleaning
sheet." is displayed on the LCD. Then, open the front cover, take out the drum unit, and
remove the cleaning sheet from the drum unit.
(10) Put the drum unit back in the machine and close the front cover. Then the machine
returns to the ready state.
(
Settings) key in the ready state.
or key to display "Machine Info." and then press the Machine Info. key.
or key to display "Parts Life" and then press the Parts Life key.
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