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It was purchased in may 2011, have never had any issues. It is connected to a power surge protector. It just won't turn on. The tower system is working fine, we plugged that into an older monitor.
We also tested the problem monitor on another computer, it is just has not power.
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Hi Gary Brooks, I would be happy to do all I can to help you with your C6280. I understand it will not turn on, and the adapter light is illuminate until you connect the cable to the printer. Please review the following document to ensure you have completed all of the necessary troubleshooting; HP Printers The HP Printer Does Not Turn On or Respond When the Power...
Also, do you have the printer power cable connected directly to a wall outlet or is it in a surge protector or power bar? Even if you have been using a surge protector/power bar all this time and you feel it is not the cause, please connect it to a wall outlet just so we can eliminate the power source as the root cause. Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector
In this document you will see, ISSUE: Problems or issues may arise when an HP LaserJet series printer is connected to an uninterruptible power supply (UPS), a power strip, or a surge protector
^ This is not limited to Laserjet printers.
Unlikely. This will need repair or replacement.
To avoid future issues , install a whole house surge protector on the main panel and use local surge protectors on expensive units.
Unplug the things not regularly used.
Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.
A computer that won't start can be both alarming and infuriating, especially if you're on a deadline or you haven't been backing up all your data (like we all tend to do). Don't panic, though-this problem often has a simple solution.
1.If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case. 2.If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer. 3.If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working. 4.If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable. 5.If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer. 6.If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.) 7.If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)
Your reasoning about the switch mode power supply being damaged is probably right. Bear in mind that this power supply may not be the only thing that may be damaged in your computer. You won't know for sure until you borrow a power supply and install it into your computer to see if it will work again.
Try connecting the TV directly to a different wall outlet and check. If the issue persists, try power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue persists, then the TV requires service.
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