Owners manual
Manuals
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Canon Manuals
All-in-One Printers
MAXIFY MB2720 Inkjet Multifunction Printer - Color - Plain Paper Print - Desktop - Copier/Fax/Printer/Scanner - 600 x 1200
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2002
Cause
An unsupported USB hub is connected.
What to Do
If a USB flash drive is connected to the printer through the USB hub, disconnect the hub from the printer.
Connect a USB flash drive directly to the printer.
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