Using the Printer Software with Macintosh 125
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Printing with the Duplex Unit
Duplex printing with the optional Duplex Unit prints on both 
sides of the paper. When printing for binding, the binding edge 
can be specified as required to produce the desired page order.
As an ENERGY STAR
®
 partner, EPSON recommends the use of 
the double-sided printing function. Refer to 
ENERGY STAR
® 
Compliance for more information on the ENERGY STAR
® 
program.
To use Printing for Binding, the optional Duplex Unit must be 
installed and enabled in the printer driver. To enable the Duplex 
Unit, select the AL-C1900 icon and close Chooser. However, the 
Duplex Unit is enabled automatically when this unit is installed 
and the printer is connected with the computer correctly.
1. Click the   Layout icon on the Basic Settings dialog box. The 
Layout dialog box appears.
2. Select the Duplex check box.
3. Select a Binding position from Left, Top, or Right.
4. Click Duplex Settings to open the Duplex Settings dialog box.