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error HP
Error Code Er/05
Paper jam error — additional information may be needed from technician or user guide.
? What Causes This
Residual issues after paper removal and reassembly, printer not recognizing cleared condition properly.
✓ How to Fix It
Recalibrate the paper path if indicated by tech support manuals. Refer to detailed instructions provided in manual for specific model.
Source: page 2 of the official manual
From the manual
This error code appears in:
HP Laserjet Mfp M139e M142e Printer