I have a PC running Windows 7 Ultimate, 64-bit. I'm having a strange issue with a USB printer (HP LaserJet 3015). The printer is available when I select File - Print from an application like Notepad, but it is not visible in the "Devices and Printers" area of the Control Panel -- in fact, no devices at all appear there. No monitors, keyboards, mice, or anything else.
This appears to be affecting a LabWindows application that we're running. This application calls the routine SHDocVw_IWebBrowser2ExecWB from an OLE library to display a pop-up allowing the user to print the contents of a browser window, but the pop-up never appears. I have this application installed on another system as well, and on that one the "Devices and Printers" folder contains all the regular system devices and the pop-up works properly.
I found a suggestion in a Windows 7 forum to go into the Windows services folder and set the Bluetooth service to Automatic. I tried this and restarted the PC, but it didn't fix the problem.
Any ideas?
