Nikon COOLPIX-A - Manual (Page 180)

160
Q
A
Printing Via Direct USB Connection
Be sure the EN-EL20 battery is fully charged or use an optional EH-5b AC
adapter and EP-5C power connector (
0 230). When taking
photographs to be printed via direct USB connection, set Color space to
sRGB (
0 178).
D
USB Hubs
Connect the camera directly to the printer; do not connect the cable via
a USB hub.