[sane-devel] Canonscan N 650U LIDE Scanner does not scan but makes terrible noise
coxsterdillon at hotmail.com
Sat Aug 24 16:30:14 UTC 2013
Further testing shows it still makes noises and missing steps due to motor lockup on my LIDE30, even when externally powered (hack). I played with the resolution as this seems to change the motor step and certainly higher resolutions kind of recover but low ones, quick movements fail to start. I am using turn off all calibration so not sure if this is part of the issue. It does not do this with the twain drivers in Windoze on the same scanner.
From: coxsterdillon at hotmail.com
To: sane-devel at lists.alioth.debian.org
Date: Tue, 13 Aug 2013 13:43:08 +0000
Subject: Re: [sane-devel] Canonscan N 650U LIDE Scanner does not scan but makes terrible noise
Just a comment from my playing with LIDE30. Try different USB cables, assuming we are not talking about PP scanners?
I found out getting a short cable, like 1foot (molex brand) with conductor writing on plastic as 22awg/C2 gives better performance with no noise yet but I've still to play. Just in case this is actually a power issue, not that I want to suggest there is nothing else wrong. The cables I got off ebay at long lengths didn't work at all. Unfortunately the LIDE30 does not have an external power option, perhaps others in their ranges do.
> From: gerhard at gjaeger.de
> To: sane-devel at lists.alioth.debian.org
> Date: Tue, 13 Aug 2013 14:31:22 +0200
> Subject: Re: [sane-devel] Canonscan N 650U LIDE Scanner does not scan but makes terrible noise
> On Sunday 11 August 2013 20:25:06 Winni wrote:
> > I tried with different dpi resolutions. Most of the time it starts with
> > the horrible noise but sometimes it works. I'd say every 5th try works.
> > Even calibrating under XSane results in that noise...
> > I searched for a plustek config file but could not find it.
> > By the way, there is a hint about "awfull noise" in the FAQ.gz at
> > /usr/share/doc/libsane/plustek/
> this FAQ is only valid for the Plustek parallel port scanners.
> It is of no use here.
> - Gerhard
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