Brother HL-3140CW User Manual page 176

Troubleshooting
c
Take out all four toner cartridge and drum unit assemblies.
IMPORTANT
• We recommend that you put the toner cartridge and drum unit assemblies on a piece of disposable paper
or cloth in case you accidentally spill or scatter toner.
• Handle the toner cartridge and drum unit assemblies carefully. If toner scatters on your hands or clothes,
immediately wipe or wash it off with cold water.
• To prevent damage to the machine from static electricity, DO NOT touch the electrodes shown in the
illustration.
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