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Konica-Minolta bizhub 420

  • Code: C-2804
  • Description: Toner density abnormality.
    - When the L detection output is in excess of 2.6 V before the toner remaining sensor (PZS) detects a no toner condition, toner density does not recover even when toner is automatically supplied.
  • Causes: Toner remaining sensor (PZS) TCR sensor (TCRS) Printer control board (PRCB)
Error Code
Service Mode, Troubleshooting
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