Brother MFC-8870DW - Manual (Page 56)

Options and Consumables
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Options
The machine has the following optional accessories. You can expand the capabilities of the machine by adding
these items.
Consumables
When the time come to replace consumables items an error message will be indicated on the LCD.
For more information about the consumables for your machine, visit http://solutions.brother.com or contact your
local Brother re-seller.
Lower Tray Unit DIMM Memory
LT-5300
Second lower paper tray unit can hold up to 250 sheets of
paper. When the tray is installed, the machine expands total
input capacity up to 550 sheets. You can expand the memory by installing a (144-pin DIMM)
memory module.
Toner Cartridge Drum Unit
TN-3130/TN-3170 DR-3100