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T. Ribbrock | 1 Jun 2005 11:04
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Re: Good office scanners with ADF support?

On Tue, May 31, 2005 at 04:24:04PM -0400, Philip J. Hollenback wrote:

[HP 7450C]

Eeewww... Don't ask our secretaries what they think of this scanner...
:-/

> However, now that I've tested this scanner, I've found a few issues.
> Chief among them is that this scanner goes to sleep after 15 minutes
> of inactivity, and it can't be woken up without a power cycle.

It has the same problem under Windows here - major pain in the
proverbial.

> I've been discussing this with the Avision backed developer Rene and
> he believes this is fixable.  Thus this scanner might turn out to be a
> good solution.

I'll keep my fingers crossed for you, but if I'm to believe our
secretaries, that scanner has other downsides. The transport mechanism
of the ADF doesn't seem to be very reliable - our secretaries have
frequent problems with papaer jams and half scanned pages. It has been
cleaned and readjusted several times by now but doesn't seem to be able
to take the daily beating of an office environment for long.

We also have a HP6250 with ADF sitting next to it - much less hassle with
the driver, but same - if not worse - mechanical problems with the ADF.

> I thought it wouldn't hurt, though, to at least ask this list.  Does
> anyone have any recommendations for a scanner with a 50 page ADF and
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Philip J. Hollenback | 1 Jun 2005 14:38
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Re: Re: Good office scanners with ADF support?

On 06/01/05, T. Ribbrock wrote:
> On Tue, May 31, 2005 at 04:24:04PM -0400, Philip J. Hollenback wrote:
> 
> [HP 7450C]
> 
> Eeewww... Don't ask our secretaries what they think of this scanner...
> :-/
> 
> > However, now that I've tested this scanner, I've found a few issues.
> > Chief among them is that this scanner goes to sleep after 15 minutes
> > of inactivity, and it can't be woken up without a power cycle.
> 
> It has the same problem under Windows here - major pain in the
> proverbial.

Well, good to know it's not just Linux.

> > I've been discussing this with the Avision backed developer Rene and
> > he believes this is fixable.  Thus this scanner might turn out to be a
> > good solution.
> 
> I'll keep my fingers crossed for you, but if I'm to believe our
> secretaries, that scanner has other downsides. The transport mechanism
> of the ADF doesn't seem to be very reliable - our secretaries have
> frequent problems with papaer jams and half scanned pages. It has been
> cleaned and readjusted several times by now but doesn't seem to be able
> to take the daily beating of an office environment for long.
> 
> We also have a HP6250 with ADF sitting next to it - much less hassle with
> the driver, but same - if not worse - mechanical problems with the ADF.
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Louis-Dominique Dubeau | 1 Jun 2005 14:47
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Re: Good office scanners with ADF support?

"Philip J. Hollenback" <phil <at> telemetry-investments.com> writes:

> I thought it wouldn't hurt, though, to at least ask this list.  Does
> anyone have any recommendations for a scanner with a 50 page ADF and
> good SANE support other than the HP 7450C?  I don't see much else that
> looks promising on the SANE homepage except maybe one of the Agfa
> SnapScans?

I have one recommendation AGAINST a specific model: the HP 5550c
(which is currently not supported by SANE anyway).  This is the first
and only scanner I've owned so I don't have good points of comparison
with other scanners but if the ADF is a must for you, don't go with
this model.  Its ADF doesn't work properly, period.  Actual jams
(where everything stops) are not frequent but it happens way too often
that it feeds two pages together.  That totally screws up whatever
batch of pages was supposed to be scanned.  It's a new machine so
there's no reason for this nonsense other than technical ineptitude on
HP's part.

Ciao,
Louis

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Philip J. Hollenback | 1 Jun 2005 15:05
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Re: Good office scanners with ADF support?

On 06/01/05, Louis-Dominique Dubeau wrote:
> "Philip J. Hollenback" <phil <at> telemetry-investments.com> writes:
> 
> > I thought it wouldn't hurt, though, to at least ask this list.  Does
> > anyone have any recommendations for a scanner with a 50 page ADF and
> > good SANE support other than the HP 7450C?  I don't see much else that
> > looks promising on the SANE homepage except maybe one of the Agfa
> > SnapScans?
> 
> I have one recommendation AGAINST a specific model: the HP 5550c
> (which is currently not supported by SANE anyway).  This is the first
> and only scanner I've owned so I don't have good points of comparison
> with other scanners but if the ADF is a must for you, don't go with
> this model.  Its ADF doesn't work properly, period.  Actual jams
> (where everything stops) are not frequent but it happens way too often
> that it feeds two pages together.  That totally screws up whatever
> batch of pages was supposed to be scanned.  It's a new machine so
> there's no reason for this nonsense other than technical ineptitude on
> HP's part.

Well, that's certainly good info.  It's my sense that all of these
'HP' scanners with ADFs are rebranded from other vendors.  I suspect
if HP actually designed the ADF it would probably work a lot better.

P.

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phollenback <at> telemetry-investments.com
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m. allan noah | 1 Jun 2005 15:59

Re: Re: Good office scanners with ADF support?

>
> Or maybe there just aren't any good scanners with ADFs out there?
> That seems unlikely.
>

depends entirely on how much you want to spend. i have been playing with 
the fujitsu fi-4120c for awhile. it still has some issues in the sane 
drivers that i have not been able to fix, mostly cause the firmware seems 
a little flaky and i dont have much time.

but, i have just gotten the fi-5110C and fi-4120C2 (replacement for the C) 
and they seem much better about firmware issues. all three of these are 
top-down feed, pulling the bottom-most sheet first. they do jam 
occasionally, depending on two things- quality of paper (rough cut, 
static, dampness, shared wrinkles) and operator care (setting paper guides 
too loose or tight, not fanning stack, leaving lower edge square instead 
of tapered).

i need to spend some time with sane driver on these...

other scanners suggested to me often include the HP office-jet all-in-one 
series, it appears that they are better designed than HP adf scanners.

allan

-- 
"so don't tell us it can't be done, putting down what you don't know.
money isn't our god, integrity will free our souls" - Max Cavalera

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Louis-Dominique Dubeau | 1 Jun 2005 16:51
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Re: Re: Good office scanners with ADF support?

"m. allan noah" <anoah <at> pfeiffer.edu> writes:

>>
>> Or maybe there just aren't any good scanners with ADFs out there?
>> That seems unlikely.
>>
>
> depends entirely on how much you want to spend. 

Quite right!  I used to work for a company that does high volume
scanning.  We were able to find excellent high-speed scanners with
perfectly working ADFs but they would cost a few thousand dollars.
That was justifiable for high volume jobs.  (Unfortunately, I don't
have details of brands and models since I was not responsible for
hardware selection.)

My disapointment with the HP 5550c led me to a good deal of reflexion.
One could assert that it is unrealistic to expect to get a good
scanner with a perfectly working ADF for a few hundred bucks.  (I'm
not saying anybody here is actually asserting this.)  But if it is the
case, then why are scanner-makers offering units that purport to be
just that: a good scanner with a perfectly working ADF for a few
hundred bucks?

Ciao,
Louis

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Stefan Urbanek | 1 Jun 2005 20:21

Unable to run scanimage

Hi,

I have a problem running scanimage. When I try it:

scanimage -d genesys

I get:

scanimage: open of device libgenesys failed: Invalid argument

I have fresh CVS installation with make clean and removal of all
previously installed files. The libgenesys is present where it should
be, that is in the lib/sane.

What should be wrong and how I can fix it?

Thanks for any hints,

Stefan

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Jens Gulden | 2 Jun 2005 00:46
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Re: Good office scanners with ADF support?

Philip J. Hollenback wrote:
>  This scanner is destined
> to replace a fax machine and so must have and automatic document
> feeder capable of holding 50 sheets.  It also needs to work with a
> linux system

My private scanner and printer is a Brother MFC 3420C 
(http://www.brother.com/europe/fax/info/mfc3420c/mfc3420c_ove.html). It 
is a scan/print/copy/fax combination, which I bought mainly for ADF 
scanning, but now use for printing, too. It was much cheaper than a 
scanner-only device with additional ADF support (about 150 EUR). 
According to my experiences it's about 50 pages that you can feed in per 
batch, a web-page at Brother I found says 20 pages, but I'm quite sure 
it's more with 'normal' paper... maybe it's possible to try it out in a 
shop.

The Linux support is GREAT. Brother offers both SANE-drivers and 
lpr-drivers (for printing) by themselves 
(http://solutions.brother.com/linux/sol/printer/linux/sane_drivers.html, 
http://solutions.brother.com/linux/sol/printer/linux/lpr_drivers.html), 
and both installed and work without problems.

Unlike most other cheap scan/print/copy/fax devices, it can scan both 
via ADF and via flatbed, many such devices have ADF only. The 
disadvantage of this is that it's quite a big box. (Looks like a 
photocopier washed too hot, like 50% of the size of a 'real' photocopier.)

If the images you are going to scan are fax-like quality, and not 
art-paintings (as your mail suggests), this may be useful to you. If you 
don't need an optional flatbed, maybe another device of that company is
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Mohit Kumar | 2 Jun 2005 08:15
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List of all possible options

Hi All,

I am implementing an interface to read data from scanner and was
wondering if anybody on the list is aware of any document that has a
complete list of options for scanners.
What I mean is that does SANE anywhere keeps a list of all the
possible options, the "keywords" through which they are read and so
on.

I had gone through Chapter 4.5 of SANE document and it also mentions
Well Known options.

Probably there could be a list of all options. The reason I require
this is I can know the keywords on which the comparison needs to be
done to know whether that option is supported or not.

Any help in this regard would be highly appreciable.

Thanks,
Mohit

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stef | 1 Jun 2005 22:04
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Re: Unable to run scanimage

On Wed, Jun 01, 2005 at 08:21:59PM +0200, Stefan Urbanek wrote:
> Hi,
> 
> I have a problem running scanimage. When I try it:
> 
> scanimage -d genesys
> 
> I get:
> 
> scanimage: open of device libgenesys failed: Invalid argument
> 
> I have fresh CVS installation with make clean and removal of all
> previously installed files. The libgenesys is present where it should
> be, that is in the lib/sane.
> 
> What should be wrong and how I can fix it?
> 
> Thanks for any hints,
> 
> Stefan
> 

	Hello,

	if you have no other scanner atached than a 'genesys' one,
do 'scanimage' without any argument. However, if you want to specify
the device, from memory it should be 'libusb:002:004', where numbers
vary. You can find it by executing 'scanimage -L'.

Regards,
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