The lamp control is done in the scanner. When the lamp has turned on then the lamp needs some time to create a stable illumination. There is no way for the backend to find out if the lamp just has been turned on or not.
I do not think that the status of the lamp has anything to do with the freeze of your system. May be you have a problem with the scsi controller driver or the scsi bus or termination. Bye Oliver Piernicola Oliva schrieb: > > Hi, > another problem arised... > Now the images are ok, 12bits deep. > When the scanner is in standby for more than half an hour (I think) the lamp > turns off. > I made some other acquisitions after this (using the same command and the > same image) and I noticed a different histogram for the same image (say the > mean vaule was 4000 instead of 2500).This difference appears only for the > first image acquired after the turning off of the lamp. > So I waited for another turning off of the lamp and started again a set of > acquisition... and the computer freezed completely (also the caps-lock light > didn't work) and I had to reset the computer. > I made this only one time, so I don't know if it happens every time the lamp > turns off. > > Do I have to say in some way to the scanner to turn on the lamp? > > Thank you, > pier > > -- > \ name: Piernicola OLIVA > o/\_ address: Universita' degli Studi di Sassari > <\__,\ Struttura Dipartimentale di Matematica e Fisica > "> | via Vienna 2, 07100, Sassari, Italia > ` | tel: +39/079229486 (office) > \ +39/3401450473 (mobile) > \ fax: +39/079229482 > \ e-mail: [email protected] -- Homepage: http://www.rauch-domain.de sane-umax: http://www.rauch-domain.de/sane-umax xsane: http://www.xsane.org E-Mail: mailto:[email protected]
