Coombs' test involves taking a blood sample which is checked for the presence of antibodies which may destroy red blood cells.
You can use the HP Print and Scan Doctor to test the status of the printer spooler, print queue, device manager, and device conflicts. 1  On the desktop, double-click the HP Print and Scan Doctor icon to open the tool. 2  Click Start on the Welcome screen. 3  Select your printer, and then click Next.  Click Fix Printing.
If you canât scan from the HP software but you can print, use one of the following methods to scan from the computer in Windows 10. HP Scan and Capture app: Free from the Microsoft Store, scan photos or documents using your printer or the camera on your computer or mobile device.