[EMAIL PROTECTED] writes:
The second, and simpler, possibility would be to open the scanner case,
and install a switch in the power supply leads to the lamp. Then you
could manually interrupt the power. Don't know if the scanner would notice
this or not? If there is any kind of automatic gain control it might go
to its maximum gain setting. Also don't know if there is any kind of
calibration of the lamp before each scan. If so, that could cause some
problems.
- Wayde
([EMAIL PROTECTED])
Dear Wayde:
In my experience, which I admit is somewhat limited, (I haven't used every
scanner ever made) The scanner will not work without a working lamp. The
software interface goes through a warm up phase, to insure the color temp of
lamp is stable. Some models of scanners I have used flatly will refuse to do
anything if the lamp fails to come up to the correct color temp. Others,
(Generally less expensive models) aren't so picky. They just wait for a
preset amount of time before beginning scan. You might get away with
disabling the lamp on one of these. Or just cover the lamp with one or two
layers of electrician's tape. (Or something equally opaque) The better
scanners will have feedback circuitry to insure enough light is reaching the
CCD. So that wouldn't work well in those cases. One would also want to be
careful about the switch used if one went that way... The voltage to the
lamps could easily arc over in a switch with too low a voltage rating. (And
just might give you a nasty surprise if you touch the switch!)
Junkman
