To my disappointment I called Hp and spoke with their technicians for the second time regarding Ink System failure 0xc18a0001? I reset the IDS by pushing the * and # key then hit 123 and I got the message RO631M once I got this message I followed the following procedures Press and release the right arrow button until the display says ?System Configuration Menu?. Press and release the ?OK? button. . Display say ?Hardware failure status?. If not there already, Arrow Key over to ?Hardware failure status?, Press and release the ?OK? button. Display should say ?Hardware failure status: Clear. Press OK to clear?. Press and release the ?OK? Button. Message changes to ?Hardware failure status Cleared. Press Cancel to continue?. Press and release the ?CANCEL? button as many times as necessary, so that, either the ?Welcome to Photosmart Express? screen appears, or, the ?Ink System Failure? screen appears. PLEASE DO NOT TRY TO PRINT AT THIS STAGE. Using the Power Button, turn the unit OFF and unplug the power cable from back of the printer and wall outlet. Wait 30 seconds for the power to get discharged and then plug the power cable into the wall outlet first and then into the back of the printer Turn the unit on. The printer may display message ?USE POWER BUTTON TO SHUTDOWN THE PRINTER? followed by ?PRESS OK TO CONTINUE?. Press OK. The Printer will start the ?ONE TIME INK INITIALIZATION PROCESS?. Allow this process to complete and do not interrupt. Once the initialization process is complete, the printer will print out a Diagnostic Page no joy I still got the ink failure message

By the way, there is another way. By now you are getting ready to replace your printer, right? Why don?t you this last solution, and try it to resolve this issue. This step is only intended for OUT-OF-WARRANTY products ONLY as doing this step on IN-WARRANTY products can VOID YOUR WARRANTY. Do this step at your own risk.
There is a CMOS battery inside your printer that keeps track on your printer?s history. Ink replacements, resets, etc? Try resetting the data stored on your Hp product by removing the CMOS battery and then putting it back in after 30 minutes. Unfortunately I could not tell where you can find this battery inside your product as location differs for different products but here?s what the battery should look like inside your printer.
This step worked for me.... on the HP C6180 All-in-one Printer the battery is located on the circuit board on the right side of the printer where you insert the memory cards all you have to do is to remove on screw from theside and approx five that hold down the circuit board and the battery is on the other side By the way, there is another way. By now you are getting ready to replace your printer, right? Why don?t you this last solution, and try it to resolve this issue. This step is only intended for OUT-OF-WARRANTY products ONLY as doing this step on IN-WARRANTY products can VOID YOUR WARRANTY. Do this step at your own risk. There is a CMOS battery inside your printer that keeps track on your printer?s history. Ink replacements, resets, etc? Try resetting the data stored on your Hp product by removing the CMOS battery and then putting it back in after 30 minutes. Unfortunately I could not tell where you can find this battery inside your product as location differs for different products but here?s what the battery should look like inside your printer. This step worked for me.... on the HP C6180 All-in-one Printer the battery is located on the circuit board on the right side of the printer where you insert the memory cards all you have to do is to remove on screw from theside and approx five that hold down the circuit board and the battery is on the other side