Brother HL-L8350CDWT - Manual (Page 131)

Routine Maintenance
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d Hold the handle of the toner cartridge and gently push it toward the machine to unlock it. Then pull it out
of the drum unit. Repeat this for all the toner cartridges.
WARNING
• DO NOT put a toner cartridge 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, soft, lint-free cloth.
(See the Product Safety Guide.)