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System error: #02-003

System error #02-003 — Internal communication error

Samsung · Laser Printers

What does System error: #02-003 mean?

An internal communication error has occurred between components within the printer, specifically involving the MEGA88 Micom.

Common Causes

  • Communication error of the MEGA88 Micom
  • Side cover not properly closed

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn the printer completely off, wait 30 seconds, then turn it back on.

  2. 2

    Open the side cover of the printer and then firmly close it to ensure proper connection.

  3. 3

    If the error persists after these steps, contact service for diagnosis.

Browse all codes in this manual (57)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal PrintingAbnormal printing — Strange characters or no outputAbnormal noise (scanner)Abnormal noise — Scanner making unusual soundsCover openCover open — Printer indicates a cover is not closed
Source: Samsung Laser Printers
Open Manual (Page 113)Search more codes in this manual