Sometimes the restart is necessary to clean up lingering settings that caused the corruption before the drivers may be successfully reinstalled. If you haven't done so, you may also try uninstalling, restarting the computer, and then reinstalling. I clarified in my response, since, in reinstalling drivers, the ScanGear drivers are easy to overlook. ET (excluding holidays).ĭid this answer your question? Please click the Accept as Solution button so that others may find the answer as well. If you need immediate assistance with this issue, please call us at 1-800-OK-CANON (652-2666), Monday - Friday 10:00 a.m. Once the driver is uninstalled, you may reinstall it using the Recommended driver installation found on the MF644Cdw Drivers & Downloads page: (optional) if the computer asks you to restart, do so.Select and uninstall the ScanGear scanner driver.On the left side of the new window, ensure Apps & Features is selected.In Settings, select Apps or, if that option isn't available, System Preferences.
Select Settings in the bottom-left corner of the (the icon that looks like a gear or sun).Open the Windows Start menu in the corner of your screen.First, remove the printer's scanner driver: If this error is occurring on the MF644Cdw following power saver or powering off and then on again, then it's possible that the scanner driver has become corrupted. The printer is two weeks new to me and already ready to take it back. I spoke to them once and the issue was not resolved. I've spent a LOT of time waiting on the customer help line waiting to speak to someone. I’ve uninstalled and installed the drivers per Canon following the disconnect/connect suggestions of the cable during the download and uploading. I’ve tried all the power setting suggestions for the USB ports and all the suggestions to keep the port from powering saving when not in use etc. A problem…” If I try to print a document from the pc when the scan problem exists, there are no issues. I get a message, “Canon MF Scan Utility has stopped. While scanner was disconnected, I’ve gone to the Canon MF Scan Utility and tried activating the scanner through the app. Connection via USB (direct and no network)Īfter hibernation or a cold start, if I try to scan, the keypad message reads, “Connect the computer.” If I Restart (not shutdown and start) my pc, the connection gets restored and I can scan.
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