Recent server-side updates or sudden network disconnections.

While errors are inevitable, regular maintenance can drastically reduce downtime.

Case C — NETWORK_HW_DOWN + AUTH_REQUIRED:

Before assuming a part is broken, use these steps to reset the machine:

When a printer screen goes dark and begins flashing a string of numbers, it's a communication, not a brick wall. For years, has been a premier resource for demystifying these alerts. The updated interface makes it easier than ever to search by exact manufacturer, model, and code. Whether you are deciphering a Xerox duplication prevention code , diagnosing a Ricoh SC error , or troubleshooting a Konica Minolta fuser overheat , this database provides the knowledge to act confidently. The next time a print job fails, don't panic. Simply treat the code on the screen as a clue, and let the new printcopy.info guide you to the solution.

Elias looked at the error code again. It hadn't been a warning. It had been a birth announcement.

Add an exclusion rule for PrintCopyInfo.exe in your security software. 🖨️ Hardware and Driver Mismatch Errors

Open the indicated panels and gently remove the stuck paper. Ensure the paper tray matches the paper thickness.

These codes often occur when the machine cannot detect a paper tray or when the paper feed rollers are worn out.

| Symptom | Old Error (Pre-2023) | | Key Differentiator | | :--- | :--- | :--- | :--- | | Scan to Email fails | 0x1002 (SMTP wrong port) | 0xB42A (OAuth2 expiry) | New error requires re-login to Microsoft 365, not changing server ports. | | Print job stuck at 50% | 0x2004 (Driver mismatch) | 0xC991 (Duplex metadata) | Old error is fixed by driver update; new error requires MTU change. | | Secure print won't release | 0x3001 (Card reader dead) | 0xE7F3 (Hash mismatch) | Old error: replace hardware. New error: change hashing algorithm. |

: If your printout includes text about "Content-Length," it’s often a driver glitch. Perform a hard reset: unplug the printer for 30 seconds, hold the power button for 15 seconds while unplugged, and then restart ( HP Support ).

What is the of the print server (e.g., Windows Server 2022, Linux)?

: The tracking software uses a different SNMP community string (e.g., "public") than the one configured on the physical copier.