Balihoo
19th of June 2003 (Thu), 23:58
My Windows XP desktop would not recognize my A70. XP appeared to find camera, indicated installing driver for new device, but then gave a message similar to "driver did not install properly, new device may not work." Camera did not appear under "Scanners and Cameras" and under Device Manager the camera had a yellow exclamation point.
I called Canon tech support and was told to first unplug my scanner, reboot, and then connect camera. It worked! I was told from then on I could leave my scanner connected, as XP had now properly recognized my Canon, and that I would not have to unplug my USB scanner. That proved not to be the case. In order for XP to recognize my camera I had to unplug the scanner and reboot and then connect the camera.
I went back to Canon and asked if there was any further work around for the problem. I have been told no there is no permanent solution because Windows XP has a problem recognizing two "scanners" at the same time. For your info, please see XP Knowledge Base Article Q324756 at http://support.microsoft.com/default.aspx?scid=kb;en-us;Q324756. The gist of that article is:
You may not be able to install multiple Universal Serial Bus (USB) scanners in Windows XP and use them simultaneously. For example, when you attach two scanners to the Universal Serial Bus (USB) ports of your Windows XP-based computer, the first scanner that you connect is detected correctly; however, when you connect the second scanner, you may experience one of the following behaviors:
The second scanner is listed in Device Manager as "Unknown Device".
-or-
You receive the following error message (it is displayed next to the scanner in Device Manager):
Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory. (Code 38)
CAUSE
This behavior occurs because the Usbscan.sys driver cannot be used simultaneously by more than one scanner.
RESOLUTION
To work around this issue, connect and use one scanner at a time. To use the second scanner, disconnect the first scanner from the USB port, restart the computer, and then connect the second scanner. To use the first scanner, disconnect the second scanner from the USB port, restart the computer, and then connect the first scanner.
HOPE THIS HELPS Y'ALL.
I called Canon tech support and was told to first unplug my scanner, reboot, and then connect camera. It worked! I was told from then on I could leave my scanner connected, as XP had now properly recognized my Canon, and that I would not have to unplug my USB scanner. That proved not to be the case. In order for XP to recognize my camera I had to unplug the scanner and reboot and then connect the camera.
I went back to Canon and asked if there was any further work around for the problem. I have been told no there is no permanent solution because Windows XP has a problem recognizing two "scanners" at the same time. For your info, please see XP Knowledge Base Article Q324756 at http://support.microsoft.com/default.aspx?scid=kb;en-us;Q324756. The gist of that article is:
You may not be able to install multiple Universal Serial Bus (USB) scanners in Windows XP and use them simultaneously. For example, when you attach two scanners to the Universal Serial Bus (USB) ports of your Windows XP-based computer, the first scanner that you connect is detected correctly; however, when you connect the second scanner, you may experience one of the following behaviors:
The second scanner is listed in Device Manager as "Unknown Device".
-or-
You receive the following error message (it is displayed next to the scanner in Device Manager):
Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory. (Code 38)
CAUSE
This behavior occurs because the Usbscan.sys driver cannot be used simultaneously by more than one scanner.
RESOLUTION
To work around this issue, connect and use one scanner at a time. To use the second scanner, disconnect the first scanner from the USB port, restart the computer, and then connect the second scanner. To use the first scanner, disconnect the second scanner from the USB port, restart the computer, and then connect the first scanner.
HOPE THIS HELPS Y'ALL.