Brother  HL-4140CN User Manual page 6

DO NOT use flammable substances near the product. DO NOT use any type of spray to clean
the inside or outside of the product. Doing this may cause a fire or electrical shock. See Routine
Maintenance in the User's Guide/Basic User's Guide for how to clean the product.
DO NOT use a vacuum cleaner to clean up scattered toner. Doing this might cause the toner
dust to ignite inside the vacuum cleaner, potentially starting a fire. Please carefully clean the
toner dust with a dry, lint-free soft cloth and dispose of it according to local regulations.
Be careful not to inhale toner.
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