How to Replace Door Sensor and LED Screen on HP OfficeJet Pro: A Step-by-Step Guide

If you own an HP OfficeJet Pro printer, you may have encountered an error message that says the doors are not closed, even when they are. This is a common issue that can be caused by a malfunctioning door sensor or a cracked LED screen. In this article, we will show you how to replace both the door sensor and LED screen on your HP OfficeJet Pro printer.

Before we begin, please note that this guide is for informational purposes only. We recommend that you take your printer to a professional if you are not comfortable working with electronic devices.

Step 1: Check the Nipple

The first thing to check when you encounter the “doors not closed” error message is the front panel of your printer. Look for a small nipple that protrudes from the panel. Check to see if the nipple is still intact and if it clicks when you press it. If the nipple is still there and clicks, then the issue may be with the sensor.

Step 2: Insert Thick Plastic

If the nipple is intact and clicks, but the error message persists, try inserting a piece of thick plastic between the doors and the printer. This will trick the printer into thinking that the doors are closed. If the error message goes away, then the issue is with the door sensor.

Step 3: Replace the Door Sensor

If the error message persists even after inserting a piece of plastic, then the door sensor needs to be replaced. You can find a new door sensor on bchtechnologies.com. Go to the printer parts section and look for the HP electronic board and assembling category.

Step 4: Replace the LED Screen

If your printer’s LED screen is cracked or not responding, it needs to be replaced. The first step is to remove the top screws on the printer. Make sure there are eight screws, and then remove the printer hinge by pushing it forward. The scanner can now be pulled up to 90 degrees, exposing some screws underneath. Remove these screws, and then peel off the panel from both sides.

Step 5: Install the New LCD

Now that you have access to the inside of the printer, you can install the new LED screen. You will need both a T10 and T6 screwdriver for this task. If you don’t have these screwdrivers, you can purchase them online.

Step 6: Put It All Back Together

Once you have installed the new door sensor and LED screen, it’s time to put everything back together. Follow the steps in reverse order to reassemble your printer. Make sure to test it out to ensure that everything is working correctly.

Replacing the door sensor and LED screen on your HP OfficeJet Pro printer is a straightforward process that can save you time and money. Remember to exercise caution when working with electronic devices and seek professional help if you are not comfortable with the process.