How to solve the Error code "E9" on HP Deskjet GT Series printers
To users of HP Deskjet GT5810/5820 printers, there may be someone who has experienced "Error 9" on the printer.
This is normal and not a problem with the printer, so don't panic, just follow the steps mentioned below.
What is the code "E9"? this means that the printer sensor needs to be detected to do Ink system Maintenance on the PrintHead, this HP Printer does not have a pump, so it needs to be done maintenance in a way like this, where in other InkTank printers called Auto Cleaning/Flushing
How to solve the E9 Error, as follows:
1. Not Printhead Access Door, and then immediately close it again like the example picture below:
This process will clean the ink residue attached to the PH and produce maximum print quality
Attention!
Do not open / release the Printhead cover well, this will actually make the Ink system a problem
please try the above method good luck