[sane-devel] HP SCANJET 4500c trouble

[gcasados at solar.cinvestav.mx]

Hello Ilia.

I did what you have requested. Following is the scanimage debug output:

[sanei_debug] Setting debug level of hp5590 to 50.
[hp5590] SANE backed for HP ScanJet 4500C/4570C/5500C/5550C/5590/7650 1.0.5
[hp5590] (c) Ilia Sotnikov <hostcc at gmail.com>
[hp5590] attach_usb_device: Opening USB device
[hp5590] attach_usb_device: USB device opened
[hp5590] hp5590_init_scanner
[hp5590] hp5590_cmd: USB-in-USB: command : 0012
[hp5590] hp5590_control_msg: USB-in-USB: core data: no
[hp5590] hp5590_control_msg: USB-in-USB: sending control msg
[hp5590] hp5590_control_msg: USB-in-USB: checking acknowledge for control
message
[hp5590] hp5590_get_ack
[hp5590] hp5590_get_ack: USB-in-USB: accepted
[hp5590] hp5590_get_ack: USB-in-USB: not accepted (status 0)
[hp5590] sane_hp5590_get_devices, local only: 0
[hp5590] Found 0 devices
scanimage: no SANE devices found
[hp5590] sane_hp5590_exit

Image file is zero length.

The scanner hangs after scanimage exits.

I open the scanner and mover the shield that covers the main chip, it
has no manufacturer label just the following numbers:

26-00145-00A
0214M1B9K

Does anybody know something about this chip?
I hope this numbers could be useful.

Thanks a lot in advance.












> On Thu, Dec 31, 2009 at 9:47 PM,  <gcasados at solar.cinvestav.mx> wrote:
>> I have an HP SCANJET 4500c scanner. It works well under Windows but I
>> want
>> get rid off such operating system. I found my scanner is supported by
>> SANE
>> development source using HP5590 backend.
>
> Hello, Gaspar!
>
> The support of the scanner was added only based on the assumption that
> is's more or less similar to HP 5590/5550 models. In the other words,
> I haven't tested it on real hardware. Now it's time to do that ;)
>
>> When I issue the command
>> sane-find-scanner it returns:
>>
>> This is sane-find-scanner from sane-backends 1.0.21cvs
> ...
>>    checking for HP4500C/4570C/5500C/5550C/5590/7650 chipset ...
>>    Didn't get correct confirmation for USB-in-USB command (needed: 0x01,
>> got: 0x00
>> <Couldn't determine the type of the USB chip (result from sane-backends
>> 1.0.21cvs)>
>>
>
> The confirmation error is rather strange - haven't seen that before.
> However, the error sane-find-scanner reports doesn't always means that
> you couldn't use the scanner at all - the utility serves only
> diagnostic purposes.
>
>>
>> What could be the problem with
>>
>>    checking for HP4500C/4570C/5500C/5550C/5590/7650 chipset ...
>>    Didn't get correct confirmation for USB-in-USB command (needed: 0x01,
>> got: 0x00 ?
>
> At least, the error explains why sane-find-scanner reported no devices.
>
> Could you, please, try to scan eg. using scanimage with backend debug
> enabled? The command
> SANE_DEBUG_HP5590=50 scanimage 1>img.pnm 2>hp5590.log
> will do that, you will get the debug information in hp5590.log and
> resulting image in img.pnm.
>
> Thanks in advance,
> --
>  Ilia Sotnikov
>