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Routine Maintenance
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Important
• Unpack the toner cartridge just before you put it in the machine. If a toner cartridge is left unpacked for a
long time, the toner life will be shortened.
• If an unpacked drum unit is put in direct sunlight or room light, the unit may be damaged.
• Brother machines are designed to work with toner of a particular specification and will work to a level of
optimum performance when used with Brother Original toner cartridges. Brother cannot guarantee this
optimum performance if toner or toner cartridges of other specifications are used. The machine may not
detect toner or toner cartridges of other specifications correctly but may instead detect such items as
standard yield toner cartridges. Brother does not therefore recommend the use of cartridges other than
Brother Original cartridges with this machine, or the refilling of empty cartridges with toner from other
sources. If damage is caused to the drum unit or other part of this machine as a result of the use of toner
or toner cartridges other than Brother Original products due to the incompatibility or lack of suitability of
those products with this machine, any repairs required as a result may not be covered by the warranty.
f Pull off the protective cover.
Important
Put the toner cartridge in the drum unit immediately after you have removed the protective cover. To
prevent any degradation to the print quality, DO NOT touch the shaded parts shown in the illustrations.