[sane-devel] HP4470c - OSX - USB intermittently working

[Richard Bakker]

See log attached.


***************

Macintosh:~ richardbakker$ SANE_DEBUG_SANEI_USB=7 scanimage -L  
2>probe.log
device `rts8891:libusb:004:003-03f0-0805-00-00' is a Hewlett-Packard  
4470c flatbed scanner

Macintosh:~ richardbakker$ scanimage -L
No scanners were identified.

**************

really strange....

I use this port and cable for an external HD as well, never found  
issues with it (afaik), but I will the cable.

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On May 11, 2009, at 9:01 PM, stef wrote:

> Le Monday 11 May 2009 11:09:23 Richard Bakker, vous avez ?crit :
>> I have the weirdest experience with SANE - OSX, USB and a HP4470c
>>
>> When I unplug the USB, reconnect and execute some tests (stripped
>> output):
>>
>> -------------------------
>> Macintosh:~ richardbakker$ sane-find-scanner
>> found USB scanner (vendor=0x03f0, product=0x0805, chip=rts8801/
>> rts8891) at libusb:004:003-03f0-0805-00-00
>>
>> Macintosh:~ richardbakker$ sane-find-scanner
>> found USB scanner (vendor=0x03f0, product=0x0805, chip=rts8801/
>> rts8891) at libusb:004:003-03f0-0805-00-00
>>
>> Macintosh:~ richardbakker$ sane-find-scanner
>> found USB scanner (vendor=0x03f0, product=0x0805, chip=rts8858c?) at
>> libusb:004:003-03f0-0805-00-00
>>
>> Macintosh:~ richardbakker$ scanimage -L
>> No scanners were identified.
>>
>> Macintosh:~ richardbakker$ sane-find-scanner
>>   # No USB scanners found.
>>
>>
>> -------------------------
>>
>> I can reproduce this output by unplugging the USB and/or power and
>> reconnect.
>> I managed once to scan using PS CS4, second scan - "No devices found"
>
> 	Hello,
>
> 	could you try the same test but with scanimage -L , with sane usb  
> debug
> enabled by running :
> SANE_DEBUG_SANEI_USB=7 scanimage -L 2>probe.log
>
> 	And send debug logs (once compressed) either to the mailing list or  
> directly
> to me if it's too big.
> 	
> 	You may also try another USB cable or plug it in another port if  
> possible.
>
> Regards,
> 	Stef
>
>
> --
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Met vriendelijke groet,

Richard Bakker

web:      www.richardbakker.com
email:    bakman at xs4all.nl
mobile:  +31 (0) 6 387 50 943