Canon imageFORMULA 201 User Manual page 7

Connecting the Scanners to a Computer
If you own multiple Canon DR-series scanners
If you own multiple Canon DR-series scanners, with the exception of the Canon DR-series scanner connected to the flatbed, do not connect any
other scanners to the computer, regardless of compatibility. Proper functioning is not guaranteed if multiple scanners are connected.
When connecting the flatbed and the
Canon DR-series scanner, do not use the
USB cable supplied with the DR-series
scanner. Instead, use the USB cable
supplied with the flatbed.
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