c-5351bizhub 4752

Error C-5351 Konica Minolta bizhub 4752: Fix

The Konica Minolta bizhub 4752 error C-5351 is a technical alert indicating a malfunction in the fuser system. This code appears when the sensor detects that the fuser cannot reach the required temperature or has a mechanical block. Why does my bizhub 4752 show error C-5351? It is generally caused by thermistor issues or obstructions in the paper path. It is vital to address this quickly to ensure office productivity is not compromised.

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Common causes

  • 1Thermistor failure preventing accurate temperature detection.
  • 2Exhausted or burned-out fuser heating lamp.
  • 3Mechanical obstruction in the fuser unit gears.
  • 4Residual paper or melted toner build-up on the roller.

Solutions

Quick Diagnosis

The C-5351 error locks the control panel to prevent hardware damage. Listen for grinding noises, which suggest physical damage to the pressure roller or the cleaning blade.

Step-by-Step Solution

  1. Hard power off: Turn off the main switch and wait 10 minutes for the fuser to cool down.
  2. Clear obstructions: Open the side door and remove any paper jams preventing roller rotation.
  3. Power cycle: Turn the unit on again to reset the heater unit.
  4. Technical reset: Access the service mode to clear the error code if it persists.

Maintenance and Prevention

Avoid using paper with staples or adhesives that can strip the fuser film. Perform roller cleanings every 50,000 prints. Always use original toner to avoid carbon deposit buildup.

When to call a technician

If the code returns after a power cycle, the fuser unit likely has a damaged lamp or thermistor and requires professional replacement.

Equipment Technical Data

  • Technology: Monochrome laser
  • Performance: 50 ppm
  • Connectivity: USB, Ethernet, Optional Wi-Fi
  • Media capacity: 500-sheet universal tray
  • Compatible consumables: TN-P series toner (4752 series)
  • Recommended use: High-volume corporate environments
  • Drivers / official firmware

Steps to follow

  1. 1

    Hard power off

    Turn off the main switch and wait 10 minutes for the fuser to cool down.

  2. 2

    Clear obstructions

    Open the side door and remove any paper jams preventing roller rotation.

  3. 3

    Power cycle

    Turn the unit on again to reset the heater unit.

  4. 4

    Technical reset

    Access the service mode to clear the error code if it persists.

Frequently asked questions

This error points to a fuser unit fault, usually involving heating issues or mechanical blockage in the pressure roller.

It is not recommended, as a jammed or overheating fuser can cause internal damage.

The device uses TN-P series original toner, designed for the bizhub 4752 family.

Avoid using heavy or sticker-covered paper and maintain regular roller cleaning intervals.