Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: ed1380 on February 05, 2008, 06:40:48 PM

Title: scanner salvage?
Post by: ed1380 on February 05, 2008, 06:40:48 PM

i got a scanner/ printer for free. it dont work. but I'll try to fix it. if i cant what can i do with the scanner bar? I'm guessing it has a bunch of little led's and detectors

thx

Title: Re: scanner salvage?
Post by: Rebelgium on February 05, 2008, 06:49:10 PM

You guessed wrong. A (normal) scanner has one chip with a sensor of about one inch, and a CCFL light. :)

Title: Re: scanner salvage?
Post by: ed1380 on February 05, 2008, 08:26:16 PM

so how does that one inch sensor scan a whole page wide? some special lens?

and a CCFL light would be cool too

Title: Re: scanner salvage?
Post by: cooldog on February 05, 2008, 09:13:58 PM

http://www.instructables.com/id/Scanner-Parts-Sign/

http://www.instructables.com/id/Scanner-Parts---Desk-Lamp/

http://www.instructables.com/id/The-return-of-the-dead-flatbed-scanner/

Title: Re: scanner salvage?
Post by: ed1380 on February 06, 2008, 02:45:33 PM

wow awesome links. thanks.

but what's the led scematic for? isnt that your project for the night light?

Title: Re: scanner salvage?
Post by: cooldog on February 06, 2008, 04:26:00 PM

woops ;D

Title: Re: scanner salvage?
Post by: ed1380 on February 07, 2008, 02:52:53 PM

well sadly this scanner has no ccfl.

actually it's a flat plastic piece lighted up by a 3 pack of led's all in one SMD package. (red, blue, green)
i took 2 AA's to it and holy shiat is it bright. the red especially

Title: Re: scanner salvage?
Post by: Rebelgium on February 08, 2008, 09:06:01 AM

Quote from: ed1380 on February 05, 2008, 08:26:16 PM

so how does that one inch sensor scan a whole page wide? some special lens?

Yes a lens.

And a LED bar is cool too :p

Title: Re: scanner salvage?
Post by: ed1380 on February 08, 2008, 02:42:49 PM

well mine is diferent.
there is this ceramic pcb with the sensor all in one long line.

might get a pic later