Deskjet 4120 keeps going into error mode, lights flashing

[DaveUK2022]

The printer goes into error mode every couple of days, lights flashing, lcd display flashing. Wifi light remains on. Any ideas or help gratefully appreciated. 

Dave

[Nal_NR]

Hi @DaveUK2022,

Welcome to the HP Support Community. 

I'd like to help!

If you have performed the steps from this document here and still having issues, then it could be hardware. 

Hope this helps! Keep me posted for further assistance.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[DaveUK2022]

The following lights are flashing :

Resume button/ight

Information button/light

Ink Alert light

Power button/light

On the LCD display everything flashing:

Wireless Icon 

Instant Ink Icon 

Number of copies Icon 

Ink Level Icon 

Error Icon 

Paper Error Icon 

Wifi Direct Icon 

I've tried reinstalling the ink cartridges but this hasn't helped. The problem only started when I installed the new ink cartridges supplied by HP Instant Ink.

[Anand_Andy]

Hi @DaveUK2022,

Welcome to the HP Support Community

I understand you are facing an issue with your HP DeskJet 4120e All-In-One Printer. Not to worry I will help you to get a resolution to resolve the issue.

Let's perform a power drain: 

• With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
• Remove USB cable, if present.
• Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
• Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
• Turn on the printer and wait till warm-up period finishes and the printer is idle

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating printer firmware.

If the issue persists, then please follow the steps mentioned in this document: HP DeskJet 2700, 4100, 4800 printers - Blinking lights and error codes

If the issue still persists, I'm sending out a private message to assist you with the next course of action. 

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!