Re: Agfa Horizon

Rogier Wolff (R.E.Wolff@BitWizard.nl)
Thu, 5 Feb 1998 14:54:55 +0100 (MET)

Kevin Charter wrote:
> > Would testing code for this backend be dangerous? Could It cause hardware
> > damage. This scanner is not exactly cheap and I don't feel like messing it
> > up.
>
> As far as I know the the most likely way to cause scanner damage is
> the driver manages to get the scanner ccd to move, but either can't
> get it to stop or feeds in the wrong scanning window dimensions, and
> it moves past the end of the physical scanning area. If you don't turn
> the scanner off I imagine you can damage the motor, the ccd, or
> both. Other than that, feeding garbage commands into your scanner
> might cause it to hang, but I doubt you can do much physical damage.

Really, a piece of hardware that allows software commands to cause
hardware failure, is broken already. The Umax scanners seem to be
badly designed in this respect.

Make sure that you test the "new software" inside the warranty period.
The manufacturer cannot prove that their driver didn't make a mistake.
(A bit flipped in main memory).

Roger.

-- 
If it's there and you can see it, it's REAL      |___R.E.Wolff@BitWizard.nl  |
If it's there and you can't see it, it's TRANSPARENT |  Tel: +31-15-2137555  |
If it's not there and you can see it, it's VIRTUAL   |__FAX:_+31-15-2138217  |
If it's not there and you can't see it, it's GONE! -- Roy Wilks, 1983  |_____|



--
Source code, list archive, and docs: http://www.mostang.com/sane/
To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com