Look for the scanner that is not working on the list provided.Visit your computer’s System Preferences and click the Printers & Scanners option.If there is an applicable update, download it and install using the instructions from your manufacturer. Visit the website of your scanner manufacturer and search using your device model number.If there is no update available, move to the next step. Install any pending updates that match your scanner make and model. Visit the App Store and click “Updates.” An alternative method is to click the Apple icon, then About this Mac, and then click the Software Update button.

Start by checking for newer versions of your scanner’s software that are compatible with your Mac OS 10.10 operating system. Follow these instructions in order, and stop at any point if the scanner starts working again. If you know everything is connected and has power, there are more advanced troubleshooting steps that you can take. If none of these steps get your scanner working again, there could be another issue impacting your computer and device ensuring you cannot scan after upgrading to Mac OS X 10.10. Lights on the device will often blink if there is a connectivity issue, or you can try printing a test page from your computer to ensure the device is working if it is a print/scan model. Ensure the link to the scanning device and computer, wired or wireless, is functioning.Check the power connection to ensure the device is turned on.If there are any blinking lights on the printer, it may not have ink or paper. If you are scanning to print, check to make sure the printer/scanner has ink and paper.Troubleshoot Scanning Issues on Mac OS Yosemiteīefore you get frustrated with a scanner that’s not working, start with a few connection checks between the computer and the scanner. The good news is that with a few at-home troubleshooting tips, you can get your scanner back online. This issue impacted scanners from all major manufacturers, including HP, Canon, Epson, and Lexmark. In some cases, such as with the operating system update to Mac OS X Yosemite, there was a known issue with many printer/scanner devices, and users cannot scan after the update. In most cases, software updates can be set to schedule automatically without any work on your part. One of the things that Mac users like best is the simplicity and expectation that everything will “just work”. Things to Try If You Cannot Scan After Upgrading to Mac OS X 10.10

Driver Support/ knowledgebase/ Things to Try If You Cannot Scan After Upgrading to Mac OS X 10.10.

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