Warning Lights on HP LaserJet M101 – M106 Printers [How to Fix]

In this article, we will discuss the meaning of warning lights on HP LaserJet M101 – M106 printers and how to clear the warning lights.

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Table of Contents

Blinking Attention and Ready Lights – Warning Lights on HP LaserJet M101 – M106 Printers

This happens during your printer’s startup (initialization). Since this is a normal printer condition, you don’t have to do anything.

Turned-off Attention Light and Turned-on Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This is an indication that your printer is in an idle state. Since this is a normal printer condition, you don’t have to do anything. When a print job is sent to your printer, your printer will resume printing operation.

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.

Turned-off Attention and Ready Lights – Warning Lights on HP LaserJet M101 – M106 Printers

This means that your printer has entered auto-off mode. This is also a normal printer condition; therefore, you don’t have to do anything.

Tip: You can change the printer’s default times for going into automatic shutdown or auto off/Sleep mode with the aid of your printer’s HP Embedded Web service (EWS) “System” tab.

Turned-off Attention Light and Blinking Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This happens when your printer is doing either of these tasks:

i. Processing and printing a print job.

iii. Canceling a print job.

When any of these is happening, you don’t have to do anything. When the printer finishes printing or canceling the job, the lights will return to normal.

Blinking Attention Light and Turned-off Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This means that your printer is processing an error, warning, or confirmation prompt. You don’t have to do anything when you see this light pattern.

Turned-on Attention and Ready Lights – Warning Lights on HP LaserJet M101 – M106 Printers

When this happens, a fatal error has occurred on your printer. To fix this error, do the following steps:

Step 1: Press down your printer’s “Resume/Cancel” button.

This action should change the light pattern on your printer.

Step 2: Determine the specific fatal error when the secondary light patterns are displayed to resolve the error.

Note: The remaining HP printer warning light patterns discussed after this section are secondary.

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Turned-on Attention Light and Turned-off Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates an engine error which includes the following:

i. DCC memory error.

ii. Communication error.

iii. Unknown engine firmware error.

To fix this error, do the following solutions:

1. Turn off and then Turn on HP LaserJet Pro M101 – M16 Printers

To turn off and then turn on your printer, do the following steps:

Step 1:  Use the power switch to turn off your printer.

Step 2: Use the power switch to turn on your printer.

Check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, do the next solution.

2. Reset HP LaserJet Pro M101 – M16 Printers

To reset your printer, do the following steps:

Step 1: Use the power switch to turn off your printer.

Step 2: Wait for a minimum of 30 seconds.

Step 3: Use the power switch to turn on your printer.

Step 4: Wait for your printer to complete the initialization process.

If you plugged your printer into a surge protector or power strip, do the following to reset your printer:

i. Use the power switch to turn off your printer.

ii. Unplug your printer from the surge protector or power strip.

iii. Plug your printer into an electric wall outlet.

iv. Use the power switch to turn on your printer.

v. Wait for your printer to complete the initialization process.

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

Check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

To service your HP printer, contact HP Customer Support to fix a repair date for your HP printer. Folks in the Asia Pacific will be directed to contact the nearest service center to them.

If your printer is still under warranty, the repair will be free. Click here to confirm the warranty status of your HP printer.  

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Turned-on Attention Light and Blinking Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates a power error. This error can occur as a result of the following:

i. A power outage was detected.

ii. A low-voltage power supply (LVPS).

To fix this error, do the following solutions:

1. Allow your Printer to Recover from the Power Failure

In the case of a power outage, you need to wait for your printer to recover from the power failure.

After allowing your power to recover from the power failure, check if the problem is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, do the next solution.

2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

Blinking Attention Light and Turned-on Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates a fuser error. This error can occur as a result of the following:

i. Low fuser.

ii. Bad fuser.

iii. High fuser.

iv. Slow Fuser.

v. Fuser drive issues.

vi. Issue with the fuser release lever.

vii. Low fuser temp 2.

viii. Low fuser temp 3.

ix. High fuser temp 2.

x. High fuser temp 3.

To fix this error, do the solutions:

1. Confirm that the Power Source Meets the Requirements of your Printer

If the power source in use doesn’t meet the requirements of your printer, it might lead to the occurrence of a fuser error. Therefore, you need to confirm that the power source meets the requirement of your printer.

To do this, check the label on the power source and then check that on your printer and confirm that the specifications match.

If the power source meets the requirements of your printer and the problem persists, do the next solution.

If the power source does not meet the requirement of your printer, you need to replace it with another power source that meets the requirements of your printer.

After replacing the power source, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

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2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

Blinking Attention and Ready Lights – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates a general engine error. To fix this error, do the following solutions:

1. Turn off and then Turn on your printer

To turn off and then turn on your printer, follow the instructions we shared under the Turn off and then Turn on HP LaserJet Pro M101 – M16 Printerssection of this article. 

After turning off and then turning on your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

Attention and Ready Lights Cycling on and off – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates a sensor error. This error can occur as a result of the following:

i. Bad TOP sensor.

ii. Dirty sensor.

iii. Level sensor error.

To fix this error, do the following solutions:

1. Turn off and then Turn on your printer

To turn off and then turn on your printer, follow the instructions we shared under the Turn off and then Turn on HP LaserJet Pro M101 – M16 Printerssection of this article. 

After turning off and then turning on your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

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Turned-off Attention Light and Blinking Ready Light – Warning Lights on HP LaserJet M101 – M106 Printers

This indicates a motor rotation error. This error can occur as a result of the following:

i. Bad fuser motor.

ii. Bad fuser motor start.

iii. Bad drum motor rotation.

iv. Bad drum motor start.

v. Bad developer motor rotation.

vi. Bad developer motor start.

vii. Bad main motor.

viii. Bad main motor start.

ix. Bad developer motor.

x. T1 alienation.

xi. T2 clutch error.

To fix this error, do the following solutions:

1. Turn off and then Turn on your printer

To turn off and then turn on your printer, follow the instructions we shared under the Turn off and then Turn on HP LaserJet Pro M101 – M16 Printerssection of this article. 

After turning off and then turning on your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

Turned-off Attention and Ready Lights – Warning Lights on HP LaserJet M101 – M106 Printers

This is an indication a laser failure has occurred. To fix this issue, do the following solutions:

1. Turn off and then Turn on your printer

To turn off and then turn on your printer, follow the instructions we shared under the Turn off and then Turn on HP LaserJet Pro M101 – M16 Printerssection of this article. 

After turning off and then turning on your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.

2. Reset your printer

To reset your printer, follow the instructions we shared under the Reset HP LaserJet Pro M101 – M16 Printerssection of this article.

After resetting your printer, check if the error is resolved.

If the error is resolved, stop troubleshooting.

If the error is unresolved, you need to service your HP printer.