Completely supported scanner doesn't work

[Volker Wysk]

Hi

I've got a new flatbed scanner, a Canon CanoScan Lide 300. I had a Canon
CanoScan Lide 220 before, which worked mostly fine. But then the lamp broke.
Both are listed as "completely" supported on the SANE devices page. But that
Lide 300 doesn't work.

"xsane" says:
Failed to open device 'pixma::04A91913': Device busy"

"simple-scans" says:
"Failed to scan. Unable to connect to scanner"

"scanimage -L" says:
device `pixma:04A91913' is a CANON CanoScan LiDE 300 multi-function
peripheral

I'm wondering why the Lide 300 is listed as a "multi-function peripheral".
It's not multi-function. It's just a flatbed scanner.

"scanimage --device=pixma > image.pnm" says:
scanimage: open of device pixma failed: Device busy

"lsusb" says:
Bus 006 Device 002: ID 1058:25ed Western Digital Technologies, Inc. My Book 25ED
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 05e3:0612 Genesys Logic, Inc. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 Optical USB Mouse]
Bus 001 Device 004: ID 04f2:0402 Chicony Electronics Co., Ltd Genius LuxeMate i200 Keyboard
Bus 001 Device 008: ID 04a9:1913 Canon, Inc. USB2.0 Hub
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

The Lide 220 and the Lide 300 use different backends. For the 220 it's
"genesys", for the 300 it's "pixma".

Any idea what's wrong?

Regards,
Volker
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