hp officejet pro 8600 won't recognize printhead to be there

[Alwaysbusy800]

I am having printer head problems. I have pulled the ink and head cartridge many times as directed, but still the problem persist.

[sandytechy20]

@Alwaysbusy800

Welcome to HP support community.

Update the printer firmware

1. From the home screen on the printer control panel, touch the HP ePrint icon .

2. Wait for the printer to connect to the HP ePrint server.

   When the printer connects to the server, the HP ePrint status displays.

3. Touch Settings on the bottom left corner of the screen.

4. Touch Printer Update, and then touch Check for Update Now.

Reseat the printhead up to three times

1. Slip your fingers into the slot on the left side of the printer, and then pull forward to open the cartridge access door. The carriage moves to the left side of the printer. Wait until the carriage is idle and silent before proceeding.

   Figure : Open the cartridge access door

2. 1. 

      Slot on the left side of the printer

3. Unplug the power cord from the rear of the printer. Unplugging the printer prevents the carriage from moving.

      WARNING: 

   You must disconnect the power cord before reaching inside the printer to avoid risk of injuries or electric shock.

4. Lift the carriage latch.

   Figure : Lift the carriage latch

   

5. Grasp the sides of the printhead, and then slightly lift the printhead without fully removing it from the carriage.

   Figure : Slightly lift the printhead

   

6. Reinsert the printhead into the carriage to reseat it. As you guide the printhead into the carriage, it lowers into the carriage as it seats.

   Figure : Reseat the printhead

   

7. Gently rock the printhead to the left and right to make sure that the printhead fully seats in the carriage.

8. Lower the carriage latch.

   Figure : Lower the carriage latch

   

9. Verify that the carriage latch is down.

   Figure : Carriage latch positions

10. 1. 

       Carriage latch is up

    2. Carriage latch is down

11. Close the cartridge access door.

12. Reconnect the power cord to the rear of the printer.

13. If the printer does not turn on by itself, press the Power button to turn it on.

14. Wait until the warm-up period finishes and your printer is idle and silent before you proceed.

You can refer this HP document for more assistance:- Click here

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.