Oki 5700 - Manual (Page 109)

English
Troubleshooting 8-11
4 Remove the old image drum unit (complete with toner), and set it aside
on an old newspaper, magazine, etc.
5 Remove the new image drum unit from its packaging and place it in the
machine. (Wrap the old unit in the packaging of the new unit before
throwing it away.)
6 To ensure that the image drum is positioned correctly, press down
firmly on both locations of the image drum marked “PUSH”.
7 Install a new toner cartridge (see previous instructions for Toner
Cartridge Replacement).
8 Close the cover to the image drum compartment pushing down on it
until both latches catch.
9 Return the document tray to its working position.
10 Turn power switch back on.
11 After power has been fully restored and the display is functioning, press
Menu/Exit to enter Menu.
12 Press ↓ to select Counter settings, press ENTER or →.
13 Press ENTER or
↓ to select DRUM COUNT, press ENTER.
14 Press CLEAR to reset the drum counter.
15 Press CLEAR one more time.
16 Press MENU/EXIT to return to standby mode.