Printing data from a USB Flash memory drive or a digital camera supporting mass storage9913Understanding theerror messages 13Once you are familiar with the types of errorsthat can occur while you print data from theUSB Flash memory drive with Direct Print,you can easily identify and troubleshoot anyproblems. Out of MemoryThis message will appear if you areworking with images that are too large forthe machine’s memory. Unusable DeviceThis message will appear if you connectan incompatible or broken device to theUSB direct interface. To clear the error,unplug the device from the USB directinterface.(See Error and maintenance messageson page 133 for the detailed solution.)