It is possible to print from an iPhone, iPad, or Android device to a DNP printer using the DNP Wireless Print Server (WPS 1 or WPS Pro) in conjunction with a CamRanger 2.
The CamRanger will need to first be bridged into the WPS WiFi network. Then it will be possible to print individual images from the sharing menu or to print every image automatically.
For more information on bridging into a different network, view the CamRanger 2 video tutorial on WiFi settings.