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error HP
Error Code Attention light blinks
This warns of potential problems requiring immediate attention, such as paper jams or insufficient ink levels in the cartridges.
? What Causes This
Typically seen when there are any issues that require user’s intervention, like cartridge errors, low toner level or paper feeder issues.
✓ How to Fix It
See HP support site for guidance and address visible faults on the machine (jamming/paper supply issues/toner changes).
Source: page 2 of the official manual
From the manual
This error code appears in:
HP Laserjet M207 M212 Printer