⚠
warning HP
Error Code Attention light and Document icon blinking
No paper detected in input tray. The printer is waiting for paper to be loaded.
? What Causes This
Empty paper input tray.
✓ How to Fix It
Load paper, and then press the Resume button to continue printing.
Source: page 16 of the official manual
From the manual
This error code appears in:
HP Smart Tank 6000 Printer