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Error code 551 printer

HP Recommended
Smart tank plus 551
macOS 10.15 Catalina

Error light I can’t identify. 


After start up printer flashes Paper (orange), all icons on screen plus orange light, and info light (white) and power light (white). 


Anyone know what that is and how to fix?


Thanks! Michael 


HP Support Agent
HP Support Agent
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@Michael1999, Welcome to the HP Support Community!


I understand you are not able to print due to this error. 


Reset the printer

  1. With the printer turned on, disconnect the power cord from the rear of the printer.
  2. Wait at least 60 seconds.
  3. Reconnect the power cord to the rear of the printer.
  4. Turn ON the printer, if it does not automatically turn on.
  5. Wait until the printer is idle and silent before you proceed.

Note: HP recommends connecting the printer directly to a wall outlet rather than a surge protector or a power strip.


Update the printer firmware if possible

Click here to download and install the latest printer firmware from your MAC.

Click here to know different methods of updating printer firmware.


Kindly refer to - Blinking lights to troubleshoot and resolve this issue. Analyze the light pattern and select an option in the document for troubleshooting steps.


Hope this helps! Keep me posted. 


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Have a great day! 

I am an HP Employee

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