Brother International HL-1660 Users Manual - English - Page 167
DUPLEX UNIT DX-1200/DX-1600, HP LaserJet 4
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DUPLEX UNIT (DX-1200/DX-1600) CHAPTER 5 OPTIONS The duplex unit is an optional device that allows printing on both sides of pages. When it is installed, you can select either duplex printing or simplex printing from the control panel or by software command. For more information about the control panel, see "FEEDER switch" in Chapter 4. Be sure to install the following capacity of RAM to enjoy duplex printing, or the printer cannot manage all the data for duplex printing at 600 dpi resolution and automatically switches to simplex printing or decrease the resolution from 600 dpi to 300 dpi. s Duplex printing HP LaserJet 4+ BR-Script 2 300 dpi 4 Mbytes 4 Mbytes 600 dpi 10 Mbytes 10 Mbytes Notes • The Duplex unit can handle cut sheet paper of the sizes shown below [Weight = 60 to 90 g/m2 (16 to 24 lbs)]. • When the duplex unit is installed, the capacity of the upper paper cassette decreases as shown below. • When the duplex unit is installed, legal size paper can not be loaded into the upper paper cassette with the standard paper guide. Be sure to replace it with the duplex paper guide for the both simplex and duplex printing. • When the printer automatically changes the setting to the 300 dpi resolution, the display temporarily shows "02 PR300" during printing. • When the printer automatically changes the setting to the simplex printing, the display temporarily shows "02 SX" during printing. 5-11