Brother HL-2280DW - Manual (Page 102)

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Printer
D
1 The print speed may vary depending on the type of document you print.
Automatic 2-sided
(Duplex) Print Yes
Emulations
(For HL-2280DW) PCL6
Resolution 600 dpi  600 dpi, HQ1200 (2400  600 dpi) quality
Print Speed
(Duplex)
Up to 5 pages/minute (Letter size)
1
Print Speed (For DCP-7060D)
Up to 24 pages/minute (Letter size)
1
(For DCP-7065DN and HL-2280DW)
Up to 27 pages/minute (Letter size)
1
First Print Out Time Less than 8.5 seconds (from Ready mode and standard tray)