plustek: scanning speed
Subject:
Re: scanning speed
From:
"Jaeger, Gerhard" ####@####.####
Date:
14 May 2001 06:56:03 -0000
Message-Id: <01051409010300.00472@gja>
Hi,
here we have the problem of your working box...
AFAIR you're using SPP mode to make the scanner work. This mode
is pretty slow - this is a hardware limitation. I suggest to play around with
the parport modes - I know you had problems with that. You might remove
the printer, you can try and use the current driver 0.39 which allows to
play around with forced parport-modes and timings of the I/O functions...
Anyway. To have a better scanning performance I think you should
try to set the parport mode to EPP, or at least to PS/2 to have a 8bit
bidirectional communication...
Gerhard
On Son, 13 Mai 2001, Jacek wrote:
> Hi!
> Since I've configured all my stuff, I am testing it all time :-)
> I put below some results of these tests:
> - when scanning with resolution higher than 200dpi my scanner works very
> slowly, and scanning with 1200dpi is just imposible, or I would have to
> leave it for a night to scan one a4 page. I know, that is large file, but
> in Windows it was faster. Unfortunately I don't have any MSshit on hd, so
> i can't check precisely the difference, but it is visible.
> - also I was suprised when I tried to scan in gray with 200dpi.
> Scanner worked properly until it has reached end of the selected scan area
> and it has just stopped, and gimp&scanimage was not responding for any
> calls. Fortunately after reloading pt_drv scanner get back to work, but
> with the same options it hangs every time. I haven't been seeking for
> any more "strange settings".
>
> That is all, and I hope you understand something :-) I don't suspect you
> will help me, let's threat is as another debug report.
>
> Some technicals:
> Plustek 9639T, Pentium233MMX, Linux RedHat 7.0, Kernel 2.4.3 with parport
> and parport_pc compiled as modules, and there is a printer connected to
> scanner, sane 1.0.3, driver capable to sane version (i don't remember).
>
