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Check the information on compatibility, upgrade, and available fixes from HP and Microsoft. Windows 11 Support Center

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HP LaserJet M109-M112 printers - Blinking lights

Descriptions of buttons, error codes, and light patterns for HP LaserJet M109-M112 printers.

Example of the control panel buttons, icons, and lights

Callout	Description
1	Attention light
2	Power button and Ready light
3	Wireless button and light (wireless models only)
4	Resume/Cancel button

Attention light blinks

The printer has an issue (error state) that requires user attention.

Attention light blinks quickly (HP+ printers only)

If the light blinks approximately 4 blinks per 3 seconds, the HP+ printer might not be connected to the internet, or there is an issue with your HP account.

On the printer control panel, press the Resume/Cancel button .

An information page prints.
Review the printout for additional information about the issue.
Open the HP Smart app, and then resolve the issue noted on the printout or displayed in the app.

Attention light blinks and 'Front Door Open' displays

The toner access door is open.

Open then close the toner access door.

Attention light blinks and 'Out of Paper' displays

The input tray is out of paper. Reload paper.

Load a stack of paper into the paper tray.
Slide in the paper width guides until they rest against the edges of the paper.
If printing does not continue automatically, press the Resume/Cancel button on the printer control panel.

Attention light blinks and a paper jam message displays

There is jammed paper inside the printer. One of the following messages might also display on the computer or HP Smart app:

Paper Jam
Paper Jam in Fuser
Jam in Output Bin
Jam in Cartridge Area

Find and clear the paper jam. If you cannot find any jammed paper, reset the printer. For more information, go to HP LaserJet M109-M112 printers - Paper jam error.

Attention light blinks, and 'Toner Missing' or 'Supply memory error' displays

The toner cartridge is missing or not installed correctly.

Reinstall the cartridge

Remove the toner cartridge from the printer, and then reinstall it.

Open the toner access door, and then remove the cartridge.
Align the cartridge with the tracks inside the printer, and then push in until firmly seated.
Close the toner access door.

Service the printer

Service or replace your HP product if the issue persists after completing all the preceding steps.

Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.

To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.

Attention light blinks, and 'Cartridge Low' or 'Cartridge Very Low' displays

The toner is low or very low.

Note:

You do not need to replace the cartridge until the print quality is unacceptable.

Install a replacement toner cartridge

Install a new cartridge in an HP LaserJet M109-M112 printer.

Open the toner access door, and then remove the cartridge.
Remove the new cartridge from its packaging.
Remove the orange cover from the cartridge.
Grasp the cartridge by its sides, and then rock the cartridge side to side five or six times to evenly distribute the toner.

CAUTION:
Do not touch the imaging drum surface. Fingerprints can cause print quality problems.
Bend the orange tab until it snaps, and then pull to remove the sealing tape from the cartridge.
Align the cartridge with the tracks inside the printer, and then push in until firmly seated.
Close the toner access door.
Recycle the toner cartridge and all packing material.

Service the printer

Service or replace your HP product if the issue persists after completing all the preceding steps.

Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.

To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.

Attention light blinks and a cartridge error displays

There is an issue with the toner cartridge. One of the following messages might also display on the computer or HP Smart app:

HP Protected Cartridge Installed
Incompatible Cartridge
Unauthorized Cartridge

Install a replacement toner cartridge

Install a new cartridge in an HP LaserJet M109-M112 printer.

Open the toner access door, and then remove the cartridge.
Remove the new cartridge from its packaging.
Remove the orange cover from the cartridge.
Grasp the cartridge by its sides, and then rock the cartridge side to side five or six times to evenly distribute the toner.

CAUTION:
Do not touch the imaging drum surface. Fingerprints can cause print quality problems.
Bend the orange tab until it snaps, and then pull to remove the sealing tape from the cartridge.
Align the cartridge with the tracks inside the printer, and then push in until firmly seated.
Close the toner access door.
Recycle the toner cartridge and all packing material.

Service the printer

Service or replace your HP product if the issue persists after completing all the preceding steps.

Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.

To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.

Attention light blinks and 'Paper Size Mismatch' displays

The paper loaded in the input tray is not the correct size for the print job.

Load the correct size paper or change the print settings, and then press the Resume/Cancel button on the printer control panel. For more information, go to HP Printers - Paper Mismatch error (Windows, Mac).

Attention light blinks and 'Print on Both Sides Instructions' displays

The printer is processing a manual duplex print job (printing on both sides of the paper) and cannot complete the job until the input tray is reloaded.

Remove the stack of printed pages from the output bin.
Load the stack with the print-side down and the top edge of the stack toward the printer.
Slide in the paper width guides until they rest against the edges of the paper.
On the printer control panel, press the Resume/Cancel button .

The printer processes the second side of the print job.

Wireless light blinks

The printer is open to receive a connection through Wireless Setup Mode or Wi-Fi Direct. Once connected, the light is on and solid.

Wait for the printer to establish a connection

The Wireless light blinks when the printer is attempting to connect to the wireless router or access point. Wait a few minutes, and then check the light again.

Troubleshoot the wireless printer connection

Check network issues when the printer does not connect to or drops its Wi-Fi connection.

Poor network connection: Move the printer and computer or mobile device closer to the wireless router, and then check if the signal quality improved. Try opening a website to see if the internet connection is working properly. If Wi-Fi is slow or intermittent, restart the router by disconnecting the power cord, waiting 15 seconds, and then reconnecting the cord.
Printer is off or in sleep mode: Touch the control panel menu or press the Power button to wake the printer and put it in a ready state. Sometimes the printer status might display Offline when it is actually ready.
Reconnect the printer to the network: Place the printer within range of the Wi-Fi router signal, restore Wireless Setup Mode, and then connect it to the network.
1. On the printer control panel, Resume/Cancel button to wake the printer.
2. Press and hold Wireless button for more than 20 seconds until the Attention light blinks.
3. After the printer restarts, open the HP Smart app or go to 123.hp.com to install HP Easy Start, and then follow the prompts to reconnect the printer.
Restart devices: Restart the printer and the computer or mobile device to clear possible error conditions.
Print a Wireless Network Test Report: Use the report to evaluate any issues with your Wi-Fi connection.
1. On the printer control panel, press the Cancel button to wake the printer.
2. Press and hold the Wireless button for 10 seconds until the Ready light blinks.
Enable Bluetooth on your device during printer setup (Android, iOS only): The HP Smart app uses Bluetooth to help locate the printer and set up the wireless connection to the network.

Connect the printer to your network

Reset the wireless settings on the printer, and then connect to the local Wi-Fi network.

Go to HP printer setup (wireless network) for more information.

Attention and Ready lights blink

The printer is initializing, cleaning, or cooling down.

Wait for the printer to finish or cool before continuing to print.

Attention and Ready lights are on

The printer is in a fatal error state.

Reset the printer

Reset the printer to recover from printer errors or failures.

With the printer turned on, disconnect the power cord from the printer.
Unplug the power cord from the power source.
Wait 60 seconds.
Reconnect the power cord to a wall outlet and to the printer.

Note:
HP recommends plugging the printer directly into a wall outlet.
Turn on the printer to complete the reset.

Plug the printer directly into a wall outlet

If you are using a surge protector, extension cable, or power strip, plug the printer directly into a wall outlet to make sure the printer is getting the recommended amount of power.

Turn off the printer.
Unplug the power cord from any power strips or surge protectors.
Plug the power cord directly into an electrical outlet.
Turn on the printer.

Service the printer

Service or replace your HP product if the issue persists after completing all the preceding steps.

Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.

To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.

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