Lexmark 6675. Power won't come on. Power cord

Is the computer plugged in to a known good power source with a known good power cord? Also, make sure the power is fully seated on both ends. When you press the power button are you getting any indicator lights? The power button itself has an LED that will be either solid green, blinking green, solid amber, blinking amber, or off. Do you hear any beeps?

Check with Lexmark to see if there is a reset button for unit

Try this approach:
1. Remove the power adapter from the printer. The power adapter is the black box where the power cord is plugged in at the back of the printer.2. Disconnect the power cord from the power source.3. Reconnect the power cord directly to the power outlet in the wall. Bypass any surge devices or power outlets.4. Re-plug the power adapter into the printer.5. If the printer won't automatically power on, press the power button on the printer operator panel.
I hope this helps.
Should the problem continue, please contact Lexmark Technical Support Center for additional assistance.

When is the last time you replaced the lamp?

Green Indicator Light:

The default indicator light is green. When the Xbox 360 power supply light is green it means that there are no problems with your power supply. However, if you are having problems and the power supply light is green, this means that the console is faulty and you need to contact Xbox 360 support.

Orange or Yellow Indicator Light

When the Xbox 360 power supply light is orange or yellow this means there is no problem with your console but the power supply can't supply it with power.

To remedy this problem, first try unplugging the Xbox 360 power supply from the console and unplug the power cord from the wall outlet. You'll also want to uplug the Xbox 360 power supply from the power cord.

Wait for about five minutes and then reconnect everything. You might also want to try plugging it into another wall outlet without an extension cord.

If you are still getting an orange or yellow indicator light, then something is at fault with the Xbox 360 power supply. If this is the case, contact the Xbox 360 customer support to get a new one.

Red Indicator Light:

If the xbox 360 power supply light is red, then there is something wrong with the power supply connection. If this is the case, try the same solution as listed above of unplugging the power supply from the console, unplugging the power cord from the wall outlet and unplugging the power supply from the power cord. Wait for about five minutes and then reconnect everything. You might also want to try plugging it into another wall outlet without an extension cord.

If the indicator lights are still red, then there is a fault with the power supply. If this is the case, contact customer support about getting a new one.

No Indicator Light:

If the XBox 360 power supply light is not illuminating at all, this usually means that the Xbox power supply is not connected to the wall outlet correctly. On the other hand, it might also be a fault with the power supply or the power cord.

Either way, try the same solution as listed above for the red indicator lights. If you still don't see any lights illuminated after unplugging and then reconnecting everything, you'll need to contact customer support about getting a new power supply.

Green and Orange Indicator Light:

If the indicator light is flashing green and orange, this may mean that the console does not detect the AV Pack.

Disconnect and then reconnect the Xbox AV Pack. Make sure the connections are firmly connected. Turn your Xbox back on.

If the indicator light is still flashing green and orange, try another AV pack if one is available.

If the indicator light is still flashing green and orange, you'll need to contact Miscrosoft Customer support.

Flashing Orange Indicator Light:

If your Xbox console's indicator light flashes orange, this means the internal components have overheated and the Xbox has automatically shut down to prevent damage.

Turn off the console and let it cool for at least 10 minutes.

To prevent the Xbox from overheating in the future, make sure that it's not placed in a closed cabinet or on carpet. It's best to get the Xbox elevated off the ground where the PSU can have maximum heat release.

You'll also want to make sure the Xbox is not located near a heat source like the back side of a television, computer, monitor, or other electrical device.

Great job on checking the green light on the power adapter's LED. Try these steps. Bypass any surge device or power strips. Plug printer straight to the wall power outlet. Try to make sure that you are plugging the power adapter in the correct position in its slot behind the printer. Plug it hard. If it won't automatically turn on, press the power button on the printer. If this doesn't help at all, I suggest you contact Lexmark Technical Support to further investigate the problem. I hope I can assist you more on this.

With the green light lit on the power box or power supply of the printer, that indicates that there is power flowing. But just to make sure it's getting enough to power the printer on, bypass any power strips or extensions, if you're using one, and plug the power cord straight to a known working power outlet. Make sure the power box or the power supply is inserted all the way in the slot and in the correct position behind the printer. Press the power button if needed. Hope this helps. If it's still not powering on, I suggest you contact Lexmark Technical Support for further assistance.

unplug your usb or any cord that links to your printer...
then press and hold the power button of your printer (it should force your printer to shutdown)

then plug-in your usb cord (connector/cable) back to your computer then turn in you printer again... wait for your computer to recognize it

(note the green light blinking is an indication that the printer is busy) therefore you should wait for it to be recognize (note: a sound maybe heard once your computer recognize it, some may appear as pop-up)

it should be ok now make sure you still have ink in your cartridge

I have the same model (about a year old) but there are no lights visible on the back of my printer (neither red or green). Have you contacted the Lexmark tech advice website about this problem? They may take a few days to respond but there are numerous possibilities in trying to locate the fault (probably in the power circuitry) and it might have to take it to a repair shop to get it tested (if it is not under warranty).

check the ac power source