12 - 31 TROUBLESHOOTING AND ROUTINE MAINTENANCE
Follow these steps to replace the drum unit:
1
Press the cover release but ton and then open the front cover .
2
Remove the old drum uni t and toner cartridge assem bly. Place
it on a drop cloth or disposabl e paper to avoid scattering toner.
Caution
To prevent damage to the prin ter from static electricity, do not touch
the electrodes shown below.