⚠
warning HP
Error Code Pulsing green
Printer is busy — either updating firmware, printing a document, or processing a job.
? What Causes This
The printer may be in the middle of an update or working on pending tasks such as documents waiting to print.
✓ How to Fix It
Wait until the pulsing stops. If continuous blinking persists during normal usage, contact HP support for further assistance.
Source: page 2 of the official manual
From the manual
This error code appears in:
HP Laserjet M207 M212 Printer