HP scanner - long initial delay

My HP 6350 (C7670A) drives me crazy. It's not just the
shoe-shining, it's the 30-second delay before it starts
scanning, even when the lamp is already on. I've tried another
HP (a 7400) and it was not much better. Why do they do that ?
And are there any ADF-equipped scanners that don't ?

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
You measure democracy by the freedom it gives its dissidents, not
the freedom it gives its assimilated conformists -- Abbie Hoffman.

In article <slrngecik4.2vd.cheney@atc5.vermine.org>,
Andre Majorel <cheney@halliburton.com> wrote:

> My HP 6350 (C7670A) drives me crazy. It's not just the
> shoe-shining, it's the 30-second delay before it starts
> scanning, even when the lamp is already on. I've tried another
> HP (a 7400) and it was not much better. Why do they do that ?
> And are there any ADF-equipped scanners that don't ?

Most scanners go through a fairly lengthy calibration sequence before
each scan. It may be to correct for thermal drift in the sensor.

Isaac

My HP 5490C (also 5470C .... same scanner without ADF) will do that ONLY
if the lamp was not already on. It's necessary to get the lamp up to
full brightness (which also means correct colors). But the scanner
should be smart enough (and mine is) to bypass the delay ***IF*** the
lamp was already on.


Andre Majorel wrote:
> My HP 6350 (C7670A) drives me crazy. It's not just the
> shoe-shining, it's the 30-second delay before it starts
> scanning, even when the lamp is already on. I've tried another
> HP (a 7400) and it was not much better. Why do they do that ?
> And are there any ADF-equipped scanners that don't ?
>
** Posted from http://www.teranews.com **

On 2008-10-05, Barry Watzman <WatzmanNOSPAM@neo.rr.com> wrote:
> Andre Majorel wrote:
>> My HP 6350 (C7670A) drives me crazy. It's not just the
>> shoe-shining, it's the 30-second delay before it starts
>> scanning, even when the lamp is already on. I've tried another
>> HP (a 7400) and it was not much better. Why do they do that ?
>> And are there any ADF-equipped scanners that don't ?
>
> My HP 5490C (also 5470C .... same scanner without ADF) will do
> that ONLY if the lamp was not already on. It's necessary to
> get the lamp up to full brightness (which also means correct
> colors). But the scanner should be smart enough (and mine is)
> to bypass the delay ***IF*** the lamp was already on.

Thanks. Mine must skip the delay too in some cases otherwise the
ADF would be horribly slow. But the commands really have to be
back-to-back. Do you know how long yours waits after completion
of a command ?

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
You measure democracy by the freedom it gives its dissidents, not
the freedom it gives its assimilated conformists -- Abbie Hoffman.