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Power cords If I have a power cord(such as a laptop cord) that is plugged into the wall and not attached to the appliance(computer), will the cord still take up energy coming from the wall, even if not attached to it?

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Yes,

You will constantly draw power from the outlet. Though it may not be as much draw as if you were running a device on it. Try picking up the AC adapter one day when not plugged in to the laptop. It still gets hot.

On another note,
When using AC power you should ALWAYS plug it into the back of the device before plugging it into the wall outlet to avoid excessive power surge.

Posted on Apr 24, 2008

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My HP pavilion laptop has a problem when I power it the lights just go on then off


Start by making sure its plugged in and charging. most laptops have a light that is on if the cord is plugged in.if its plugged in and there is no light one wiggle on the connection on your power cord. start at the wall and check every connection. if the light blinks than you power cord is bad or the power port in the laptop has disconnected from the mother board. Some computer stores will have a loaner universal laptop charger you can borrow. I recommend borrowing there universal before you buy a new power cord

Jul 25, 2014 | Computers & Internet

1 Answer

Printer won't turn off


Check the power supply cords; make sure they are attached properly. If you are using a power strip, surge protector or any other device where the power supply cord is not plugged directly into a wall outlet, bypass them and plug the printer into a wall outlet; see if that changes anything.
If that doesn't work, remove the printer's power cord from the outlet and all the other cables that the printer connects to the computer to.
Wait 5 or 10 minutes for the printer's CMOS and RAM chips to power off completely.
After enough time has elapsed, plug only the printer's power cord into the wall outlet (do not hook up any of the communication cables in e.g. USB, or serial cables, or network cables.)
Then press the power "on" button.

If the error message is gone, power off the printer.
Uninstall the printer and all its programs from the computer.
Do a clean install and follow the procedures of hooking up the printer as though you are installing it for the very 1st time.

You may have to obtain firmware and/or software updates from HP on your specific printer.

You may also have to check with your OS vendor to make sure you have all the updates/service packs on your PC or laptop

Nov 23, 2013 | HP Photosmart C7280 Printer

1 Answer

Hp officejet 6500 all lights are flashing and mechine says turn off and on . Please can someone Help??


: Check the power cord

1.
Turn on the product.
2.
Remove the power cord from the back of the product.
3.
Check the power cord for any physical damage. If the power cord is damaged, replace the power cord.

*
If these steps resolved the issue , you do not need to continue troubleshooting.
*
If the issue persists , continue to the next solution.

Turn the product off and then on again

1.
Press the Power button ( ) to turn the product off.
2.
Wait 60 seconds, and then press the Power button ( ) to turn the product back on.
3.
If the product does not turn off when the Power button ( ) is pressed, wait three minutes, and then proceed to the next solution.

Plug the product into a wall outlet
Follow these steps to make sure the product is plugged in correctly.

1.
Unplug the power cord from the back of the product.
2.
Unplug the power cord from any surge protectors or power strips.
3.
Select a wall outlet to plug the product into. Test the wall outlet by plugging another electric appliance, such as a lamp, into the wall outlet and turning it on. Unplug the test appliance.
4.
Plug the power cord into the back of the product.
5.
Plug the power cord into the wall outlet.
6.
Press the Power button ( ) to turn the product on.

*
If these steps resolved the issue , you do not need to continue troubleshooting.
*
If the issue persists , continue to the next solution.

Solution six: Reset the product
Follow these steps to reset the printer.

1.
Unplug the power cord from the back of the product.
2.
Unplug the power cord from the wall outlet.
3.
Wait 10 seconds, and then plug the power cord back into the wall outlet.
4.
Plug the power cord into the back of the product.
NOTE: Many power cords have an LED light on the power module or on the end of the cord that plugs into the product. Make sure the LED light is lit and steady.
5.
Press the Power button ( ) to turn the product on.

*
If these steps resolved the issue , you do not need to continue troubleshooting.
*
If the issue persists , continue to the next solution.

6. Perform a partial reset of the product
  1. Disconnect the power cord from the product.
  2. Wait for 20 seconds.
  3. Press and hold # and 3 while reconnecting the power cord.
  4. When the product turns on, release both buttons.
  5. Try printing again.

IF still won't resolve it by following steps mentioned above then your printer needs replacement. Malfunctioning hardware.

Mar 28, 2011 | HP Officejet 6500 Wireless All-in-One...

1 Answer

My display screen is rolling and nothing stops it. My computer says the printer is offline.


Try doing this procedure to correct the problem.

1. Unplug the power cord from the back of the product.
2. Unplug the power cord from any surge protectors or power strips.
3. Select a wall outlet to plug the product into. Test the wall outlet by plugging another electric appliance, such as a lamp, into the wall outlet and turning it on. Unplug the test appliance.
4. Plug the power cord into the back of the product.
5. Plug the power cord into the wall outlet.
6. Press the Power button to turn the product on.
7.Now check if its already working.

May 16, 2010 | HP PhotoSmart C4480 All-in-One Printer ...

1 Answer

My Lexmark x9350 only turns on and off if I plug and unplug...


This, probably, is a power issue on the printer. Unplug the printer from the computer. Unplug the power supply from the printer (it's the black box behind the printer where the power cord is attached). Try not to use any power strips or extensions for the power cord. If possible, plug the power cord straight to the wall outlet. With the power cord plugged in straight to the power outlet, plug the power supply back in the printer. That should refresh the printer. When everything's powered on, plug printer to computer. Hope this helps. If you need more assistance, leave a comment and I'll get back to it. Thanks.

May 13, 2010 | Lexmark X9350 All-In-One InkJet Printer

1 Answer

Printer will not power on


Try these out:
1. Check for any physical defects on the power cord. Plug printer straight to the power outlet in the wall without using any extensions or power strips.
2. Plug the printer to a known working power outlet in the wall.
3. Unplug the printer's power supply (the black box behind the printer where the power cord is attached). With the power cord still attached to power supply and the other end still plugged in to the power outlet, it should feel warm but not hot. Then, plug it back in the printer.
4. If still no power, press the power button.
5. If after doing these and the printer is still not powering on, you might be looking at a defective power cord or defective power supply.

Apr 08, 2010 | Lexmark X2500 All-In-One Printer

1 Answer

Power Problem. Sudden onset of laptop not coming


The most likely answer is the motherboard will need to be replaced. Here are some troubleshooting steps:
http://www.fixya.com/support/r3581893-how_to_troublehoot_a_portable_compouter_

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1 Answer

Wont start till I pull on the cord to make connection.checked cord with volt meter,its o.k.help. stampvs@yahoo.com


If you have unplugged the unit and performed a continuity (resistance) check from the end of the power cord to where it connects to the terminal block at the back of the appliance, then the next logical step is to perform a voltage check of the wall receptacle itself. If the voltage at the receptacle is good, but you are having connectivity issues with the appliance plugged in, the receptacle terminals may have become loose, or you may have a power cord that has a loose or broken wire. This intermittent connectivity can cause the receptacle and/or power cord to heat up and cause a fire. With the appliance unplugged, connect an ohmmeter to either end of the power cord and perform a continuity check. Move the power cord to see if the readings are constant. If you have intermittent resistance readings, you have a bad power cord. If the power cord still checks good, then I would recommend having an electrician check your wall receptacle before using the appliance again. If you still have questions, let me know. I hope this helps you.

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1 Answer

Computer won't turn on though plugged into wall


Make sure you have power at the outlet. Take power cord off and remove battery. Hold power button down for 10 seconds, plug just power cord. Try to turn on. If dose not work , you have a hardware issue.

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1 Answer

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The sparking has probably caused your circuit protection inside the AC adapter to turn off the current.
Also, when you are plugging an adapter in,,do not have it plugged into the wall power outlet when plugging into the laptop,,,plug into the laptop first and then plug into the wall.

Jan 29, 2009 | Compaq Presario Notebook

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