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Duplex Printing Applications

The following configurations support Duplex (double-sided) printing.

Duplex printing is achieved by arranging both a Model ED1 and a Model ED2 in series, separated by a Buffer/Flipper Unit. The first printer in the paper path prints one side of a form. The forms then exit the printer through a Buffer/Flipper Unit, which inverts them before threading them through the second printer. The second printer in the paper path prints the other side of the form.

This publication calls the first printer Printer 1 and the second printer Printer 2. Allowable printer system configurations are:

With the inline and left-angle configurations, only a Buffer/Flipper Unit may be between Printer 1 and Printer 2, but no preprocessing or postprocessing devices.

The forms path can be:

Both printers a the configuration attach to a host system through the AFCCU. The AFCCU controls both printers simultaneously and is physically attached to Printer 2 in the configuration.

When the Side 2 Verify feature is not enabled, the operator may choose to print verification marks that allow visual confirmation that pages are printed properly back-to-back. See the table item Verification Marks for more information.

In printers with code version 9.608 or higher, the Side 2 Verify feature is enabled at the factory. The operator must have the CE disable the factory-set feature. However, once the factory-set feature has been disabled by the CE, the operator can enable and disable Side 2 Verify as needed.

When the Side 2 Verify feature is enabled, Model ED2 automatically checks to ensure that the duplex printing system is properly aligned. Model ED2 also verifies that the printing on both sides of the forms is synchronized. If the data that is printed on Side 2 is not aligned or synchronized with the data that is printed on Side 1, printing stops. An error message also appears on the Display/Touch Screen.