Description: Indicates sources of the fax image for transmission. Also specifies the temporal order of the data sources. eSrcHostOnly - The fax document images will be wholly downloaded from the host. eSrcScannerOnly - The fax document images originate wholly from the device scanner/ADF subsystem. eSrcHostThenScanner - The fax document is composed of images downloaded from the host and pages from the scanner/ADF subsystem. The host downloaded pages will be faxed first, followed by the pages in the scanner/ADF. eSrcScannerThenHost - The fax document is composed of pages in the scanner/ADF and the images downloaded from the host. The document in the ADF is faxed first, followed by the pages downloaded from the host. wSrcHostThenMemory - The fax document is composed of pages downloaded from the host and images already stored within the device. The fax transmission will contain the host downloaded pages followed by the images in the device memory. eSrcHostToMemoryOnly - Permits fax images to be downloaded into device memory for later use with eSrcHostThenMemory. Additional information: GECKO NOTE: eSrcHostToMemoryOnly is included for development and testing only. eSrcHostToMemoryOnly will not be an allowed value for this object in the released product.