All in one printer c5280 lights blinking error code 00c515c4

SOURCE: printer trouble

Power cycle the printer. If problem remains, try a partial reset. You can do the partial reset as follows:
1. Unplug and replug the unit.
2. when lights flash on power up, hold down the ON/RESUME and PAGE SIZE buttons together.
3. When only the ON/RESUME button light flashes, you can release the buttons.
4. When the lights stop flashing, the reset is all done!

If problem remains, you are fully justified to ask HP to replace the unit for you (well, if you're still in warranty!). Good luck :)

SOURCE: printer trouble

Try following this steps:

Disconnect the Universal Serial Bus (USB) cable from the back of the product, but leave the product turned on.
Open the cover of the product and remove the print cartridges.
Close the cover and wait for the Insert Ink Cartridges message to display.
Disconnect the power cord from the back of the product and wait for one minute.
Reconnect the power cord. If the product does not automatically turn on, press the Power button.
Open the cover and reinsert the print cartridges.
Close the cover. If prompted, print a calibration page.
Reconnect the USB cable, and try to print a print job from the computer.

Hope that helps........

SOURCE: Scanning to my PC from my HP Photosmart C5280 Printer

hi!!!!
try to check the port of your printer or replaced the usb port

Ginko

• 19396 Answers
• Posted on Jan 05, 2009

SOURCE: HP photosmart C5280 Manual

Manual here: Manuals

Here is the support page with more documentation: HP Photosmart C5280 All-in-One Printer

SOURCE: Printer Alignment Failed in HP C5280

You must replace both with new GENUINE HP ink cartridges at the same time or alignment will fail.

This is how HP makes their money.