If the HP printer experiences any errors then it will show the error messages on the screen. These messages will aid you in troubleshooting and will repair the error. Look at some of the common HP Printer error messages.
Warming up error
This is related to the printer cable and driver issues. Power off the printer and take away the printer cable. Then again try to turn it back on. If the printer displays ready then first of all update the driver. If this issue is not solved then printer cable too.