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Date:      Thu, 06 Mar 2003 05:30:19 +0100
From:      dirk.meyer@dinoex.sub.org (Dirk Meyer)
To:        freebsd-questions@FreeBSD.ORG
Subject:   Re: USB Epson perfection 1250, support?
Message-ID:  <Chg5VLBtVR@dmeyer.dinoex.sub.org>
References:  <DaicWbBtVR@dmeyer.dinoex.sub.org> <200303052147.h25LlOb28884@brother.ludd.luth.se>

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Peter B wrote

> >without patches:
> >FreeBSD 4.8-PRERELEASE #22: Thu Feb 27 20:03:38 CET 2003
> >Mar  5 17:33:28 net3 /kernel: uscanner0: EPSON EPSON Scanner [...]
> >but scanimage hangs here.
> Any traces what could be the reason?
noted as PR now, after I cheked the bios.

> xscanimage  works ok.
> scanimage   works (stepper motor goes beyond physical limit in this case).
> xsane       crashes after scan, but won't hang anything.
> 
> One real nasty thing I discovered is that if one cancels a scan it can happen
> that the step motor continues to drive the scanner wagon beyond physical limit
> 
> *until* you cancel it by requesting a new scan or disconnect power.
> Something that ought to be fixed..

Have you an up-to-date version of "sane-backends" and "libusb"

> >I tested on:
> >FreeBSD 5.0-CURRENT #0: Fri Jan 31 13:42:19 CET 2003
> >everything runs there smoothly.
> >
> >mdodify: /usr/local/etc/sane.d/plustek.conf
> >
> >$ /usr/local/bin/scanimage --verbose --device plustek:/dev/uscanner0 \
> >	--format tiff --mode Color -x 210 -y 297 > test.tif
> ..........
> 
> There is also a speed issue:
> 
>                       Windoze     FreeBSD
> Preview               26 sec      50 sec
> 300 dpi, 24 bpp, A4   45 sec      66 sec

Transfer speed may be limited by the bus/hub:
USB 1.0, USB 1.1. or USB 2.0

1) there is a warm up time before teh scan start.
/usr/local/etc/sane.d/plustek.conf:
option warmup 15

2) when scanimage reports the date size,
the scan intself is ready, but scanimage wait till the
scanner wagon is back and puit the light off.

> One can clearly hear (audiowise) that the freebsd system does the scanning in 
> chunks while windoze does most tasks in one "sweep".

I see this too when I use --resolution 300

kind regards Dirk

- Dirk Meyer, Im Grund 4, 34317 Habichtswald, Germany
- [dirk.meyer@dinoex.sub.org],[dirk.meyer@guug.de],[dinoex@FreeBSD.org]

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