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CHAPTER 5 OPTIONS
5–11
DUPLEX UNIT (DX-1200/DX-1600)
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.
■ Duplex printing
300 dpi 600 dpi
HP LaserJet 4+ 4 Mbytes 10 Mbytes
BR-Script 2 4 Mbytes 10 Mbytes
✒ Notes
• The Duplex unit can handle cut sheet paper of the sizes shown below
[Weight = 60 to 90 g/m
2
(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.