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After installing the Interchange unit, install the Duplex unit on the right hand
side of the printer.
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 the printer driver. For more information
about the control panel, see “Control Panel” in Chapter 3.
If you want to duplex print, it is necessary to increase the installed RAM
depending on the data you want to print. If the printer cannot manage all the
data for duplex printing at 600 dpi resolution, it will automatically switch to
simplex printing or decrease the resolution from 300 or 600 dpi to a lower
resolution.
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The installation procedure for the Duplex unit when the Multi-purpose tray
unit is not yet installed is described below.
If the Multi-purpose tray unit is already installed, perform Steps 8 to 10 of
“Installing the Multi-purpose tray” and skip Steps 5 to 8 below.
✒ Note
To install the duplex unit, the interchange unit must be installed first.