[sane-devel] ScanJet 4C

[m. allan noah]

your adaptec card is most certainly not a mac. they are extremely finiky 
about cabling issues. get a terminator.

allan

On Mon, 28 Mar 2005, Ted Parks wrote:

> Yes, I did reboot after changing the scanner's id.
>
> I don't have a SCSI terminator on the other connector coming out of the 4C. How important is a terminator? From my Mac days, I think I remember using unterminated SCSI devices without any problem.
>
> Thanks,
> Ted
>
> ----- Original Message -----
> From: "Jeff Hubbs" <hbbs@comcast.net>
> To: "Ted Parks" <tparks@linuxmail.org>
> Subject: Re: [sane-devel] ScanJet 4C
> Date: Sun, 27 Mar 2005 21:06:22 -0500
>
>>
>> Did you reboot or at least rmmod/modprobe your scsi card beore changing
>> the scanner's scsi id?
>>
>>
>> On Mon, 2005-03-28 at 07:04 +0800, Ted Parks wrote:
>>> Checking the place in the SCSI chain indicated on the small dial
>>> on my ScanJet 4C, I discovered the scanner was set on 7. I
>>> changed it to 0 and 1, but Sane still cannot find the scanner.
>>>
>>> My continuing questions:
>>> 1) What should the SCSI setting be for the ScanJet? 0? It is the
>>> only device I have connected to the SCSI port. As Martin
>>> suggested, changing the setting from 7 cleared up the repetitions
>>> in dmesg, where the machine found the scanner 7 times! But Sane
>>> still does not see the ScanJet.
>>>
>>> 2) Dmesg still has two entries associated with the scanner:
>>>
>>> First:
>>>
>>> SCSI subsystem initialized
>>> PCI: Found IRQ 9 for device 0000:00:10.0
>>> PCI: Sharing IRQ 9 with 0000:00:07.2
>>> scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
>>>         <Adaptec 2940 SCSI adapter>
>>>         aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs
>>>
>>>   Vendor: HP        Model: C2520A            Rev: 3503
>>>   Type:   Processor                          ANSI SCSI revision: 02
>>> Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 3
>>>
>>> Then:
>>>
>>>   Vendor: HP        Model: C2520A            Rev: 3503
>>>   Type:   Processor                          ANSI SCSI revision: 02
>>> Attached scsi generic sg0 at scsi1, channel 0, id 0, lun 0,  type 3
>>>
>>> This seems to me, perhaps because of my inexperience with SCSI,
>>> that FedoraCore is attaching the scanner in two places. Why is
>>> sg0 found at scsi0 in the first entry, then at scsi1 in the
>>> second? If this is an error, how do I correct it?
>>>
>>> 3) Finally, to provide a fuller account of my problem, the output
>>> from sane-find-scanner follows. Is it normal for a usb scanner to
>>> appear, even though none is attached?
>>>
>>> [root@localhost tparks]# sane-find-scanner
>>>
>>>   # No SCSI scanners found. If you expected something different,
>>> make sure that
>>>   # you have loaded a SCSI driver for your SCSI adapter.
>>>
>>> found USB scanner (vendor=0x049f, product=0x505a) at libusb:001:002
>>>   # Your USB scanner was (probably) detected. It may or may not
>>> be supported by
>>>   # SANE. Try scanimage -L and read the backend's manpage.
>>>
>>>   # Scanners connected to the parallel port or other proprietary
>>> ports can't be
>>>   # detected by this program.
>>>
>>> Thanks,
>>> Ted Parks
>>>
>>>
>>> ----- Original Message -----
>>> From: "Martin Collins" <martin@mkcollins.org>
>>> To: sane-devel@lists.alioth.debian.org
>>> Subject: Re: [sane-devel] ScanJet 4C
>>> Date: Sun, 27 Mar 2005 04:34:16 +0100
>>>
>>>>> On Sun, 27 Mar 2005 08:41:42 +0800
>>>> "Ted Parks" <tparks@linuxmail.org> wrote:
>>>>>> Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 3
>>>> ...
>>>>> Attached scsi generic sg6 at scsi0, channel 0, id 6, lun 0,  type 3
>>>>>
>>>>> But, when I run sane-find-scanner, sane reports that there are no
>>>>> SCSI scanners attached, instead finding a USB scanner that does not
>>>>> exist. I created a symbolic link between /dev/scanner and > >
>>> /dev/sg0. What am I doing wrong?
>>>>> The scanner should only be found once not seven times. Have you set
>>>> the ID on the scanner and terminated the chain properly?
>>>>> Martin
>>>>> --
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>>>
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>
>

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