Occasionally I would try to use the scanner after being away from the computer for a while and I would get Error -4630: The device could not be locked.By continuing to use this site, you are agreeing to our use of cookies.Learn more.For a better experience, please enable JavaScript in your browser before proceeding.
I shut all other applications down, shut down the computer and started again, no change. Ugh. Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter. I feel compelled to share my solution and I hope it works for you. I love the thing. It is an inexpensive multisheet duplex scanner. When I first setup the scanner it worked perfectly for some time. ![]() So. I searched the internet for a solution and when I couldnt find one I resigned myself to rebooting the computer every once in a while. Canon Captureperfect 3.1 Upgrade To WindowsFast forward a couple of years and Microsoft eventually got me to upgrade to Windows 10. After the Windows 10 update, I was having to reboot the computer every time I needed to use the scanner. Then. (about 3 weeks ago) I had to reboot he computer multiple times. Solutions I already tried that did not work: I tried everything I could find to fix this problem except for (a) replace my canon p-150 and (b) switch computers. Canon Captureperfect 3.1 Driver And ReI tried multiple USB cables, I fiddled with the auto-start switch on my scanner, I tried using power over USB and power from the wall, I tried changing which port the USB was plugged into on the computer (front ports, back ports, USB 2.0, USB 3.0, USB 1.0), I tried unplugging other USB devices to decrease the number of devices on the bus, I tried reinstalling the driver, I upgraded the driver, I disabled the driver and re-enabled it, I fiddled with the start-up settings for CaptureOnTouch, added a ServicesPipeTimeout setting in regedit, unplugged and re-plugged the USB cable, and probably some more things that I cant remember. Solution: My first thought when I originally ran into this issue was that there was a race condition that was causing this error to occur. I think the error description is correct, The device could not be locked. Canon Captureperfect 3.1 Software From UsingSome other application, service, or driver had laid claim to my P-150 and keeping Canons software from using it. After reading many forum posts I ran across information about Windows Image Acquisition (WIA, stisvc). The Services application describes WIA as Provides image acquisition services for scanners and cameras. Eureka Maybe this service was failing to relinquish my P-150 to the Canon software. IT WAS Below are the steps to follow to disable it (These are windows 10 instructions, hopefully other windows versions are similar). ![]()
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