For Windows, see "Printing with the Duplex Unit" on page 94, For Macintosh, see "Printing with the Duplex Unit" on page 171 for information about duplex printing.

Removing the Duplex Unit

Turn off the printer and perform the installation procedure in reverse.

Hard Disk Drive

The optional Hard Disk Drive allows you to expand the printer’s input buffer when the Ethernet interface is used, and gives you additional memory for graphics, form data, and faster multi-page, multi-output sorting.

Installing the Hard Disk Drive

Follow the steps below to install the Hard Disk Drive.

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Caution:

Before you install the Hard Disk Drive, be sure to discharge any static electricity by touching a grounded piece of metal. Otherwise, you may damage static-sensitive components.

Warning:

Be careful when working inside the printer as some components are sharp and may cause injury.

298Installing Options