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CanoScan 9000f


Hello, I have a CanoScan 9000f that was working perfectly 4 days ago and now is not. The scanner is not detected and cannot be accessed. I have tried hooking it up to multiple computers, none of them will detect the scanner. It will also now only turn on after it has been unplugged and plugged back in, after turning it off it needs to be unplugged for it to turn on.

Trouble shooting that I have already done:

use different USB cables

connect to different USB ports

unplug and replug scanner

restart computer

different computers

after all attempts to get it working the farthest that I can get is the scanner turned on. If there are any trouble shooting tips or suggestions of why the scanner is not connecting they would be greatly appreciated.

Thanks, Owen




I think your trubleshooting has pointed out some serious issues.


Printer cannot be turned on without disconnecting  / reconnecting to power first.




Does not detect when connected to different devices using a different USB cable


Sounds like a significant problem / malfunction.  Maybe its time to consider service or a new scanner.    

Bay Area - CA

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Product Expert
Product Expert

Hi OwenHn,


You are eligible for Canon's Upgrade Program.  This is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system.  This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price.


To help you get up and running quickly, we also offer free standard shipping (if the order is completed by 12:30PM ET).  If you would like to take part in this option, please call our Sales Department at (866) 443-8002 seven days a week, 8am to Midnight.  Let them know you have been working with technical support and the Canon Upgrade Program was offered.




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