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error HP
Error Code LED blinks when error occurs
An error has been detected by the machine.
? What Causes This
Various issues such as paper jam, low toner levels, or mechanical failure.
✓ How to Fix It
Check error message displayed on the control panel and follow instructions given there to resolve.
Source: page 15 of the official manual
From the manual
This error code appears in:
HP Samsung Xpress SL M2885 Laser Multifunction Printer Series