Printers Error Code
Systems & Devices
Printers
49.4C02 | Firmware/data processing error
Industry
Systems & Devices
Canonical
/systems/printers/error-codes/49-4c02/
Last Updated
Feb 27, 2026
Summary
A printer firmware error occurred while processing a job or incoming data.
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What This Code Means
49.xx class errors on many enterprise printers are “service errors” that indicate the device firmware encountered a condition it could not recover from while processing a print job or data stream. 49.4C02 is often associated with job/data issues, firmware bugs, or memory/resource problems.
Where Users Usually See This Code
- Printer control panel showing a service error
- Immediately after sending a specific document to print
- After a firmware update or configuration change
Why This Code Appears
- A malformed or complex print job triggers a firmware crash
- Driver/print language mismatch (PCL/PS) produces unexpected data
- Firmware needs updating or reinstalling
- Memory/storage resources are constrained
What Typically Happens Next
- Printing stops and the device may reboot
- The same job may repeatedly trigger the error until removed
What This Code Is Not
- It is not a simple paper jam code
- It is not necessarily a defective printer
Troubleshooting Checklist
- □ Power-cycle the printer and clear the print queue
- □ Reprint a different document to isolate whether the job is the trigger
- □ Update printer firmware and driver from the manufacturer
- □ Switch print driver language (PCL vs PostScript) for testing when supported
- □ If the error repeats on all jobs, use official service diagnostics
Notes And Edge Cases
These errors are model-specific; the same code can have slightly different meaning across firmware families.
Related Codes
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