Brian,
Found this in the "Using Your Printer" doc. Use the front panel on the printer.
Change the drying time:
You may wish to change the drying time setting to suit special printing conditions such as multiple prints where time is of higher importance or when you need to be sure ink is dry before handling.
Select the Setup menu icon (a wrench), then Print retrieval> Select drying time. You can select:
● Extended, to set a longer than recommended time to ensure ink is completely dry
● Optimal, to set the default and recommended time for your selected paper
● Reduced, to set a shorter than recommended time when quality is of lower importance
● None, to disable the drying time and remove your print as soon as it finishes printing