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Richard, Technician
Category: Printers
Satisfied Customers: 33113
Experience:  Printer and scanner problem resolver for over 15 years
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Scanner is not seen by computer, 6 months, Downloaded new

Customer Question

Scanner is not seen by computer
JA: How long has this been going on?
Customer: 6 months
JA: What troubleshooting have you tried?
Customer: Downloaded new scanner software
JA: The printer expert can solve this for you. Anything else you want him to know before I connect you two?
Customer: no
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Printer Technician about your situation and then connect you two.
Submitted: 7 months ago.
Category: Printers
Expert:  Richard replied 7 months ago.

Hi there and welcome

Can you tell me the make and model of the scanner and how exactly you are connecting to it? eg: USB, Wireless?

Customer: replied 7 months ago.
canon LIDE 700F connected by USB.
Customer: replied 7 months ago.
Mac OS 10.11.5 MacMini
Customer: replied 7 months ago.
I would like to give you access to fix the problem but will need to set aside time for this. It can work well for 2-3 scans and then fail for 2-3 scans. Usually I must restart my Mac to get it working.
Expert:  Richard replied 7 months ago.

Power off the mac

Then start the Mac and hold down the Command and R keys at startup.

Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window

choose Disk Utility from the Utilities window, or from the Installer menu if you're started from an installation disc.

Click the First Aid tab.

Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.

Select your Startup Disk (usually named "Macintosh HD").

Click Repair. Disk Utility checks and repairs the disk.

Let this complete and when it has, tell me if you still have the problem please.