First off get yourself a broken new-ish printer with a scanner. If  it is not new you will get a white florescent tube which are cool and useful but we want the led scanners.

-grab some screw drivers/ tools that will get you into the scanner  

Step 1:

open the scanner, there are many useful things in here, a stepper motor, glass, and the scanner light.

Step 2:

Locate the light, take it apart untill you access the contacts be careful not to break it

Step 3:

Here is the tricky part.
You have to locate the pins that control the LEDS-
- Typically there will be a positive lead and three leads that control RED, GREEN, and BLUE. The positive terminal is usually on one of the ends, followed by the other 3 (negative) inputes for color.

solder on wires

Step 4:

Have fun! you can mix colors and pulse width modulate them to dim/mix them .

The red seems to draw a different current/ voltage than the green and the blue, iv fried the red at 6v- 0.3 amp
<p>awesome share, i have 4 of these bad boy laying around i have been taking a bunch of discarded printer apart and was wondering how i could use this component. I was also under the impression that there are sensors imbeeded in these modules as well any tips on how to utilize them</p>
<p>Hello, I used one of the scanner light with 1-2-3-4-5 and 6 volts but it doesn't work . </p><p>where is the problem ? </p>
Just stripped a hp scanner/printer for parts and recycle. Wouldn't you know it... led light!<br>For others trying this... MY pins are 1 -7 nul, 8-power+, 9-blue, 10-green, 11-blue, 12-null.<br>All three colors lit up being powered by a cr2032 coin cell battery @3 volts. Red was full brightness, blue and green about half that intensity(visually, not lumens). Further probing shows good light output from usb(5volt@100mA) on green and blue. Overdrives red, so prepare for stepdown voltage, or early failure.<br>Good part of testing with coin cells is the internal resistance prevents them from overdriving ANY led (like an led throwie). At least any led I have ever met.<br><br>Thanks to arkfusion for doing the legwork.
<p>Hi! i was following your tutorial, but i can't get anything from it... </p><p>i have the scanner light that you can see in the picture below, and i 'm trying to make it work, but i get nothing from it... would you help me? thanks!</p>
<p>hey herone! sorry for the delay, try this, It should work! dont forget to use low voltage (3v-6v) so you dont fry it </p>
<p>Thanks! I'll try.</p><p>Don't worry about that.</p><p>i was using 5V from Arduino Vcc, so it's was a stable voltage, and a 330&Omega; resistor, so I'm getting 15.15 mA, so i think it won't be high enough to fry it.</p><p>i'll try it later when i go back home.</p>
I'm kind of new to electronics an was wondering if the colors would change by theirselves or do you need to connect it to something else.
<p>There are 3 negative pins, each pin corresponds to its own color</p><p>hope that helps!</p><p>-ark</p>
Is it harmful to eyes?
nope! all the wavelengths are fine
well if you can't figure out how to use email then I don't feel comfortable sending you the part, you'll shoot your eye out. lol.
My email server rejects it. it says data is corrupt or something.
I have any parts from a HP CN504A Photosmart C310a Wireless all in one Inkjet Printer. message me. you can have them for free just cover the shipping costs. damonkrall@gmail.com.
Your email doesn't work on my computer, but I want the parts.
Never mind I figures it out.
Never drive LEDs without a current limiting resistor. As you find out, it's very easy to blow them.
Awesome, just in time too. My printer just died and I finished taking it apart about a week ago.
This is really great, it would be awesome for mood lighting or visual effects! <br>Red LEDs usually light at a lower voltage (or current) than other colors, and as you've seen, connecting them to a power source without a resistor can make them stop shining... Nice 'ible though!
I have this type of part from an hp all in one scanner/printer. I'll have to see if it is led message me if someone is interested.
I might be interested...
Excellent, I will be now on the lookout for one of these!

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