User guide
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The transfer roller cartridge is composed of a transfer roller and a waste toner collection box. Usu-
ally, the transfer roller cartridge needs to be replaced after printing about 20,000 sheets. However,
this figure varies depending on the content of the material printed, as well as the size and type of
paper used. Replace the transfer roller cartridge as soon as the message prompting you to do so
appears. The printer stops operating if you do not replace the transfer roller cartridge when
required.
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The fuser unit fixes the toner to the paper. Usually, the fuser unit needs to be replaced after printing
about 100,000 sheets. However, this figure varies depending on the content the material printed, as
well as the size and type of paper used.
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