HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
4-57
6.4
Location of Grounding Contacts
6.4.1 Drum
unit
Fig. 4-25
6.4.2 Printer body & paper tray
Fig. 4-26
<How to clean the electrodes>
Turn off the power switch. Unplug the machine from the AC power outlet, and leave the machine for
a few minutes. Then, wipe the electrodes above carefully with a dry lint-free cloth. Be careful not to
change the shapes of the electrodes.
Toner cartridge
Drum Unit
(4) Developer roller
(1) Exposure drum
(6) Transfer roller
(5) Grid
(7) Cleaner
(3) Charge
(2) Wire cleaner
(4) Developer roller
(3) Charge
(7) Cleaner
(5) Grid
(1) Exposure drum
(6) Transfer roller