HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers [How to Fix]

In this article, we will discuss the meaning of HP printer warning lights on HP DeskJet 6400, and Envy 6000 printers and how to clear the warning lights.

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Table of Contents

Glowing White Light Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When the light bar begins to glow white in the middle, it means that your printer is idle and doesn’t have a network connection. To clear this HP printer light pattern, you have to connect your HP printer to your Wi-Fi network.

To connect your HP printer to your Wi-Fi network, we recommend that you read the articles below:

HP Printer Setup to Wi-Fi [Quick Guide]

How to Add a Printer to HP Smart App [Detailed Guide]

Pulsing White Light Bar that Moves Outward – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When your printer is processing a job, the light bar will pulse white, and then move outward. In this case, you don’t have to do anything since the light bar will return to normal once the print job is completed.

Glowing Green Light Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When the light bar on your printer glows green, don’t do anything on your printer until the green glowing light disappears. This condition occurs when your printer is either turning off or on. It also occurs when your printer is having an update.

Light Bar Changes from Amber to Green – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

The light bar starts glowing amber and moves to the edges before changing to green. This is an indication that your printer just got reset to its factory defaults.

Glowing White and Blue in the Center of the Light Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When your printer is not busy (idle) but connected to your Wi-Fi network or has a Wi-Fi Direct connection, the light bar will glow white and blue in the center. When this happens, you don’t have to do anything as this is a normal situation.

Glowing Purple in the Light Bar Starts from the Middle and then Goes Outward – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When you see the light bra glowing purple from the middle before going outward, it is an indication that your printer is trying to connect to a wireless (Wi-Fi) network.

Below are the patterns you might see:

i. The purple light starts from the middle and then moves to the edges

This means that your printer is operating in Auto Wireless Connect (AWC) mode and it is waiting to establish a connection to your mobile device or computer.

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ii. The purple light glows in the middle

This means that your printer is operating in Auto Wireless Connect (AWC) mode and it is waiting for the password of your Wi-Fi network to be entered in the HP Smart app.

iii. The purple light is pulsing at the edges and the Wireless light is blinking

This means that your printer is connecting to your Wi-Fi network with the aid of the WPS mode.

We recommend that you read this article: HP Printer Warning [Detailed Guide] to learn about other HP printer warnings that you might encounter when using your HP printer.

Pulsing Blue in the Light Bar Moves to the Middle and then becomes a Single Little Blue Glow – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When this happens, your printer has established a connection with your mobile device or computer via Wi-Fi Direct. In this case, you don’t have to do anything as this is a normal occurrence.

Below are the patterns you might see:

i. The blue light pulses to the middle of the light bar and then becomes a single little glowing blue light

This means that your printer’s Wi-Fi Direct function is turned on.

ii. The blue light pulses to the middle of the light bar and then becomes a single little glowing amber light

This means that your printer’s Wi-Fi Direct function is turned off.

iii. The blue light pulses to the edges of the light bar and then in the middle, the amber light pulses

This means that the Wi-Fi connection of your printer has been lost or an error occurred during the connection setup.

Pulsing Blue in the Light Bar Moves from the Middle and then Glows Green – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

This happens when the Printer Identification gets triggered. In this case, you don’t have to do anything because the light pattern will return to normal once the identification is complete. Your printer will either go into an idle or ready state once the identification is complete.

Blinking Blue Light Bar Changes to Amber and then Blinks Three times in the Middle of the Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

This is an indication that you have reached the maximum number of Wi-Fi Direct connections. You cannot connect to more than 5 devices at a time via Wi-Fi Direct. When you see this light pattern, you need to disconnect one of the connected devices before you try to connect another one

Pulsing Blue Light Bar begins to Flash Amber – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When you see this, it is an indication that your HP printer has lost its Wi-Fi connection. Another reason is that an error occurred during the connection setup.

If you encounter this issue when you try to set up your printer’s Wi-Fi connection for the first time, press down your printer’s “Wireless” button for 5 seconds. This simple action will reset the connection. Once the reset is complete, set up your printer again.

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Glowing Purple Light Bar Starts at the Edges and then in the Middle begins to Flash Amber – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

This happens when your HP printer encounters a connection error while using Wi-Fi Protected Setup (WPS).

To fix this error, press down your printer’s “Wireless” button for 5 seconds. This simple action will reset the connection. Once the reset is complete, set up your printer connection via WPS again.

Glowing Amber Light Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

This is an indication that a printing error has occurred. To fix this problem, you need to check other lights on your printer to determine what the error is and how to resolve it.

Glowing Amber Light Bar and Blinking Paper Tray Light on HP DeskJet 6400, Envy 6000 Printers

This happens when your printer encounters a paper error and is unable to start or continue a print job. To fix this problem, do the solutions below.

1. Load your Printer with Paper

To load your printer with paper, do the steps below:

Step 1: Load your printer’s input tray with A4 or U.S. Letter paper.

Ensure that the print side is facing up while the paper’s short edge goes into the printer.

Step 2: Push the paper stack into your HP printer.

Step 3: Move the width guide on the tray to rest on the side of the stack of paper.

Check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, do the solution below.

2. Clear Paper Jam

To clear the paper jam from your printer, do the following tasks.

i. How to Automatically Clear Paper Jams in HP DeskJet 6400, and 6000 Printers

To automatically clear paper jams in HP Deskjet 6400 and 6000 printers, press your printer’s “Cancel” button.

This solution works best if the jam is a false paper jam; in other words, there is no actual paper jam.

After pressing your printer’s cancel button, check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, do the task below.

ii. How to Clear Paper Jam from the Ink Cartridge Access Area of HP DeskJet 6400, 6000 Printers

To clear the paper jam from the ink cartridge access area of HP DeskJet 6400 and 6000 printers, do the following steps:

Step 1: Lift your printer’s ink cartridge access door until it locks into its unmovable position.

Step 2: Wait for the carriage to become idle before you proceed.  

Step 3: Ensure that your printer is turned on. If it is not, turn it on.

Step 4: Remove the power cord from your printer.

Warning: Ensure that you remove the printer’s power cable from the outlet before you reach inside your printer to prevent electric shock or injuries.

Step 5: Slide the carriage with your hand to the extreme right and then to the left.

Step 6: Remove debris or jammed paper in the carriage path with both hands.

Step 7: Check the back of the ink cartridge access area, and then pinch the tabs at the same time to free the cover of the paper path.

Step 8: Lift out the paper path cover from your HP printer.

Step 9: Remove debris or jammed paper inside your printer with both hands.

Step 10: Raise the flip gate on your printer’s duplex rulers.

Step 11: Take out any paper that you find under the duplex rulers.

Step 12: Press down on the flip gate until it clicks into its normal position.

Step 13: Pinch the tabs at the same time and then slide the paper path cover into its normal position.

Step 14: Press down on the paper path cover until it clicks into its normal position.

Step 15: Close your printer’s ink cartridge access door.

If the access door cannot fully close, ensure that you inserted the paper path cover properly.

Step 16: Pull out your printer’s output tray.

Step 17: Raise the output tray extender.

Step 18: Plug the power cord into your HP printer.

Step 19: Turn on your HP printer.

Check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, check the next area for paper jams.

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iii. How to Clear Paper Jam from the Input Tray & Cleanout Area of HP DeskJet 6400, 6000 Printers

To clear the paper jam from the input tray & cleanout area of HP DeskJet 6400 and 6000 printers, do the following steps:

Step 1: Pull out your printer’s input tray.

Step 2: Take out paper from the input tray.

Step 3: Check inside the tray for debris or jammed paper and pull it out from your printer with both hands.

Step 4: Turn off your HP printer.

Step 5: Remove the power cord from your HP printer.

Step 6: Hold the top of your printer with one hand, and then turn it so that it is resting on its side.

Step 7: Slide your printer’s input tray upwards to enable to you reach the printer’s cleanout area.

Step 8: Tilt your printer downwards to enable you to see the cleanout area clearly.

Step 9: Remove any debris or jammed paper you find with both hands.

Step 10: Check the paper pick rollers for jammed paper; if you find any, remove them.

Step 11: Return your printer to the normal position.

Step 12: Reload the paper into your printer’s input tray.

Step 13: Close your printer’s input tray.

Step 14: Raise your printer’s ink cartridge access door.

Step 15: Look for and remove loose objects that might have dislodged when you turned your printer.

Step 16: Close your printer’s ink cartridge access door.

Step 17: Plug the power cord into your HP printer.

Step 18: Turn on your HP printer.

Check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, check the next area for paper jams.

iv. How to Clear Paper Jam from the Document Feeder of HP DeskJet 6400 Printers

To clear the paper jam from the document feeder of HP DeskJet 6400 printers, do the following steps:

Note: The steps below apply to HP DeskJet 6400 printers only.

Step 1: Lift your printer’s document feeder cover.

Step 2: Pull out the jammed paper from the rollers.

Caution: In case the paper gets torn when you try to pull it out from the rollers, inspect the rollers as well as the wheels for the torn paper pieces. Remove the pieces when you find them. This is important to prevent future jams.

Step 3: Press down on your printer’s document feeder cover so that it snaps into its normal position.

Step 4: Press your printer’s “Cancel” button.

This should clear the jam error.

Check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, do the next solution.

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3. Fix the Paper Mismatch Error

If your HP printer is connected to a Windows computer, read this article: HP Printer Error Paper Mismatch [How to Fix]to fix this paper mismatch error.

For Mac Users, follow the instructions in the subsection below.

How to Fix HP Printer Paper Mismatch Error on Mac

To fix the HP printer paper mismatch error on Mac, do the following tasks:

i. Check your Paper Size and Source Settings

To check your paper size and source settings, follow the steps below:

Step 1: Open the program you intend to print from.

Step 2: Click on “File.”

Step 3: Click on “Print.”

Step 4: Ensure that you choose your HP printer.

Step 5: Click on “Show Details.”

Step 6: Click on “Media & Quality” or “Paper Type/Quality.”

Step 7: Click on “Source” or “Feed from” to choose the right paper tray.

Step 8: Check the size settings of the paper.

  • If you see an option for Paper Size, click on it.
  • If you don’t see an option for Paper Size, click on “Cancel,” and then click on “File,” before clicking on “Page Setup.”

Step 9: Confirm that the paper size selected is the same as the paper size that is in the printer’s input tray.

Note: If you can’t find the exact size, choose one that is almost the same size as the paper in the input tray.

Step 10: Click on “OK.”

Check if the issue is resolved.

If the issue remains unresolved, try the next task.

ii. Reset your HP Printer

To reset an HP DeskJet, Envy 6400, or 6000 printers, follow the steps below:

Step 1: Turn on your HP printer (if it is turned off).

Step 2: Remove the power cable from your printer.

Step 3: Disconnect the power cable from its connected power source.

Step 4: Wait for 60 seconds.

Step 5: Plug the power cable into an electrical outlet as recommended by HP instead of any other power source.

Step 6: Connect the power cable to your printer.

You can read this article: How to Reset HP Printer [Detailed Guide] to learn other types of resets that you can perform on your HP printer.

Check if the issue is resolved.

If the issue remains unresolved, try the next task.

iii. Update your HP Printer Firmware

To update your HP printer, click this link: Update your HP Printer Firmware – HP Printer is Slow, and then use any of the methods we shared to update your HP printer firmware.

Check if the issue is resolved.

If the issue remains unresolved, try the next task.

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iv. Uninstall the HP Print Driver and then Use the HP Smart App

To uninstall the HP print driver and then use the HP Smart app, do the following steps:

Step 1: Go to https://123.hp.com/setup download and then install the HP Easy Start.

Step 2: Click on “Uninstall HP Software” from the drop-down menu after opening the HP Easy Start.

Step 3: Follow the on-screen steps to uninstall your HP print driver and software.

Step 4: Go to the Mac’s App store to download and then install the HP Smart app.

Check if the problem is resolved.

If the problem is resolved, you can stop troubleshooting.

However, if the problem persists, then you need to service your HP printer.

To service your HP printer, contact HP Customer Support and fix a repair date for your printer. If you live in the Asia Pacific, you will be redirected to a service center close to you. 

Printers that are still under warranty will be repaired for free. However, if your printer is no longer under warranty, you will pay the repair fees.

Glowing Amber Light Bar and Blinking Cartridge Access Door Light, Solid Ink Cartridge Light, and Turned-on Resume and Cancel Buttons on HP DeskJet 6400, Envy 6000 Printers

When you see this HP warning light pattern, it is an indication that an already used or counterfeit ink cartridge has been installed into the printer. This situation can also occur when the installed ink cartridge is low.

Therefore, to resolve this problem, you need to check and confirm that the cartridge has not been previously used or is a counterfeit. You can find out if the installed cartridge has already been used or is a counterfeit by checking the error message that is displayed in the HP Smart app or the HP printer software.

If you are certain that the installed ink is new and not a counterfeit, then it means that the ink in the cartridge is low. Therefore, to resume printing, press the printer’s “Resume” button. Your HP printer will still print even when the ink is low. However, when the quality of your print jobs becomes unacceptable, you need to replace the affected cartridge.

How to Replace Ink Cartridge in HP DeskJet and Envy 6400, 6000 Printers

To learn how to replace an ink cartridge in HP DeskJet, Envy 6400, and 6000 printers, do the following tasks:

i. Purchase Genuine and Compatible Cartridges

You can get genuine and compatible cartridges from the HP Store or any reliable store.

If you are getting the cartridge from the HP Store, follow the steps below to order the cartridge:

Step 1: Visit the HP Store.

Step 2: Choose your country/region.

Step 3: Choose your language.

Step 4: Click on “Ink & Toner.”

You will find this option in the upper area of the web page.

Step 5: Follow the on-screen instructions to locate and then order the ink cartridges.

ii. Install the Replacement Cartridge

To install the replacement cartridge in HP DeskJet, Envy 6400, and 6000 printers, do the following steps:

Step 1: Ensure that your printer’s input tray is loaded with paper.

Step 2: Turn on your HP printer.

Step 3: Lift your printer’s cartridge access door.

Ensure that it clicks into place before you let go.

When you raise the access door, the carriage within the printer will move to the left.

Step 4: Wait for the carriage to become silent and idle.

Step 4: Locate the cartridge you intend to change, and then raise the latch.

Step 5: Remove the affected cartridge from the slot.

Step 6: Keep the cartridge aside.

Step 7: Take out the replacement cartridge from its packaging.

Caution: To prevent ink system failure, don’t touch the ink nozzles or contacts on the cartridge. You shouldn’t try to place the protective tape again on the cartridge after removing it.

Step 8: Hold the sides of the cartridge, and then remove the protective plastic tape by pulling the tab.

Step 9: Insert the ink cartridge into the correct slot.

Step 10: Bring down the cartridge latch.

Step 11: Press down the cartridge latch until it clicks into place.

Step 12: If you need to change the other ink cartridge, repeat the above steps for that cartridge.

Step 13: Close your printer’s ink cartridge access door.

An alignment page will be automatically printed.

Step 14: Lift your printer’s scanner lid.

Step 15: Put the alignment page on your printer’s scanner glass with the print side facing down.

Step 16: Close your printer’s scanner lid.

Step 17: Press your printer’s “Start Copy Black” button.

Your printer will scan the alignment page, and then align the installed ink cartridges. 

You can use the printer once the light on the Cancel button goes off. This indicates that the alignment process is complete.

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Glowing Amber Light Bar and Blinking Cartridge Access Door and Ink Cartridge Lights, Turned-on Cancel Button, and Turned-off Resume Button on HP DeskJet 6400, Envy 6000 Printers

This happens when one of the ink cartridges is not installed correctly or is missing.

In the situation where a cartridge is missing, your printer will function in single-cartridge mode. Therefore, to resolve this issue, you need to install the missing ink cartridge. When you do this, your printer will no longer function in the single-cartridge mode.

In the situation where the cartridge is not correctly installed, you need to take out the cartridge from your printer, remove the protective plastic tape, and then correctly reinstall the cartridge. You can check out the steps we shared above under the How to Replace Ink Cartridge in HP DeskJet and Envy 6400, 6000 Printerssection to guide you as you reinstall the cartridge.

Glowing Amber Light Bar and Turned-on Cartridge Access Door Light, Turned-off Ink Cartridge Light, and Turned-off Resume and Cancel Buttons on HP DeskJet 6400, Envy 6000 Printers

When this occurs, it is an indication that the cartridge access door is not properly closed. Therefore, to resolve the problem, close your printer’s cartridge access door. After that, you can continue printing.

Glowing Amber Light Bar and Fast Blinking Cartridge Access Door Light, Fast Blinking Ink Cartridge Light, Turned-on Cancel Button, and Turned-off Resume Button on HP DeskJet 6400, Envy 6000 Printers

This happens when your printer’s carriage gets jammed. To resolve this carriage jam error, do the following:

1. Check the Carriage Path for Obstructions

Follow the steps below to check the carriage path for obstructions:

Step 1: Check if the printer’s “Cancel” button is on. If it is, press the button, and then wait for your printer to become silent.

Step 2: Turn your printer off.

Step 3: Remove the power cable from your printer.

Step 4: Open your printer’s cartridge access door.

Step 5: Move the carriage with your hands from one end to the other to confirm that there is no obstruction.

Step 6: Check the carriage path for obstructions such as dislodged labels or crumpled paper. If you find such items, remove them from the carriage path.

Step 7: If your printer is designed with a carriage latch, press down on it until it clicks into place.

Step 8: If the carriage can move, move it from one end to the other to remove the obstructions in the carriage path.

Caution: Don’t move the carriage forcefully if it is unable to move; doing so might damage your printer.

Step 9: Close your printer’s door.

Step 10: Plug the power cable into your printer.

Step 11: Turn on your HP printer.

2. Reset your printer

To reset your printer, follow the steps we shared under the Reset your HP Printer” subsection of this article.

Check if the problem is resolved after resetting your printer.

If you still encounter the problem, then you need to service your printer.

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Fast Blinking Amber Light Bar – HP Printer Warning Lights on HP DeskJet 6400, Envy 6000 Printers

When you see this, it is an indication that your printer has encountered a serious error. To resolve this issue, do the following steps:

Step 1: Turn on your HP printer if it is turned off.

Step 2: Remove the power cable from your printer.

Step 3: Disconnect your printer’s power cable from the connected power source.

Step 4: Wait for 60 seconds.

Step 5: Plug the power cable into your HP printer.

Step 6: Plug the printer’s power cable into an electrical wall outlet.