looks like you have it set to Rich brew according to the manual which will give you slightly more. (page 12 or 13 of the manual)
Actually you may have over-filled the reservoir. The cup or travel mug may not have been empty prior to brewing.
"The water exceeded the Max Fill line on the water reservoir prior to brewing.
The Ninja Coffee Bar® is designed to dispense the following amounts on Classic brew:
Cup 9.5 oz.
XL Cup 11.5 oz.
Travel Mug 14 oz.
XL Multi-Serve 18 oz.
Please ensure that you are using at least a 12 oz. cup for the cup size, 14 oz. cup for the
XL Cup size, 16 oz. travel mug for the travel mug size and 20 oz. travel mug for the XL
NOTE: On Rich Brew and Over Ice Brew there will be less volume dispensed. Specialty
Brew will deliver approximately 4 oz. and Cafe Forte will deliver approximately 8 oz." PG 18 or 19