Brother HL-3140CW User Manual page 119

Routine Maintenance
d
Push down the green lock lever and take the toner cartridge out of the drum unit.
WARNING
• DO NOT put a toner cartridge or a toner cartridge and drum unit assembly into a fire. It could explode,
resulting in injuries.
• DO NOT use flammable substances, any type of spray, or an organic solvent/liquid containing alcohol
or ammonia to clean the inside or outside of the machine. Doing so could cause a fire or electrical shock.
Instead, use only a dry, lint-free cloth.
(See Product Safety Guide: To use the product safely)
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