Hi, the three green lights on my dell 100l flashes when ever i plug it in.when i press the switch button it stops flashing but does not come on. please help

Please refer to the following article for a detailed diagnosis of the problem:
http://www.fixya.com/support/r6416948-troubleshooting_laptop_power_failures

It sounds like you have a bad AC adapter . When you plug it in to the outlet in the wall and into your computer , do you see a charge indicator light on the computer? I'm asking you this because even with a bad battery your computer should operate without any problems with the AC adapter plugged in.

since the LED is orange it might be a ram issue. try to locate the memory modules in your computer then try to reseat them. or if you have 2 ram modules try to remove 1 first then try to turn on the laptop check if it will do the same thing. then try removing 2 ram modules check if it will beep. if no beeps ask for mobo replacement. if it has beeps take note of the beep codes.

Kindly remove the ram and clean it and fix it again.

What lights are flashing and what does it say?

I have had three different laptops, last one an XPS from DELL which did the same thing. Replacing the battery solved all three laptops. How old is the battery you have in there now?

1. Turn off printer
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
5. Green lights will flash and then stop blinking.
6. When green lights are solid, press the Resume button 4 times.
7. Press the Power button and the printer should turn off, if not,
press the Power button once more.
8. Your printer should respond as normal..

Couldnt tell you if its going to solve your problem but you can get a cheaper replacement rechargeable battery here - Dell 100l battery, also good for the inspriron 1100 and 5100 range

Canon IP 2000 / reset
1. Turn off printer
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
5. Green lights will flash and then stop blinking.
6. When green lights are solid, press the Resume button 4 times.
7. Press the Power button and the printer should turn off, if not,
press the Power button once more.
8. Your printer should respond as normal..

is the cean light blinking 7 times and then repaeating?? If so this is a water heating fault and means that the computer sensed that the water temp didnt rise just 3deg in the last main wash cycle. If its not blinking 7times then repeat, it sounds like the user interface (membrane switches) have failed. Let me know more and i can help.