ℹ
info HP
Status Number Counter shows A
Printheads alignment in progress or completed. The printer is performing printhead alignment.
? What Causes This
Automatic or manual printhead alignment operation.
ⓘ What This Means
After the alignment page is printed and the Open Lid light blinks, place the printed page print-side down on the scanner glass, close the scanner lid, and press the blinking copy button to scan the page.
Source: page 17 of the official manual
From the manual
This error code appears in:
HP Smart Tank 6000 Printer