ℹ
info HP
Status Wireless light is blinking blue
Printer in Wi-Fi setup mode or reconnection process ongoing.
? What Causes This
Printer out of setup mode, incorrect network settings.
ⓘ What This Means
Follow instructions to reset Wi-Fi settings during initial setup. If using during operation check for a potential disconnection and reconnect network settings.
Source: page 5 of the official manual
From the manual
This error code appears in:
HP Deskjet Ink Advantage 2800 All IN One Printer