sc302-00MP C4504

Ricoh MP C4504 SC302-00 Error: Charging Unit Guide

The Ricoh MP C4504 error SC302-00 indicates an issue with the drum charging current, likely due to a poor connection or residual toner buildup. Many users ask why is my Ricoh MP C4504 showing error SC302-00, and simple contact cleaning often fixes the problem without requiring parts replacement.

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Common causes

  • 1Leakage due to residual toner accumulation.
  • 2Corroded or damaged drum electrical contacts.
  • 3Improperly seated developer unit.
  • 4Drum charging roller wear.

Solutions

Diagnóstico rápido

SC302-00 is a charging unit error. You may see this when the drum unit has bad contact or charge leakage. Symptoms include poor copy quality before the final lock.

Solución paso a paso

  1. Open cover: Open the front door and verify the development units are properly seated.
  2. Clean contacts: Use a dry, lint-free cloth to clean the electrical charging unit contacts.
  3. Reinstall units: Carefully reseat the drum and charging units.
  4. Power cycle: Restart the machine and check if the code clears.

Prevención y mantenimiento

Clean charge rollers every 30,000 pages. Keep the machine in a dry environment to prevent arcing.

Cuándo llamar a un técnico

If the error persists after cleaning and reseating, the high-voltage power supply board may have failed.

Ficha técnica del equipo

  • Technology: Color Laser Multifunction
  • Speed/Yield: 45 ppm
  • Imaging Unit: Drum and charging system
  • Input capacity: 1,200 sheets
  • Compatible supplies: MP C4504 series toner
  • Recommended use: Heavy duty office
  • Drivers / official firmware

Steps to follow

  1. 1

    Open cover

    Open the front door and verify the development units are properly seated.

  2. 2

    Clean contacts

    Use a dry, lint-free cloth to clean the electrical charging unit contacts.

  3. 3

    Reinstall units

    Carefully reseat the drum and charging units.

Frequently asked questions

It indicates a charge leak or poor connection at the drum charging roller.

No, the SC302-00 stops operations to prevent streaks and further damage to the development unit.

Yes, residual toner buildup on the charge roller is the most frequent cause of this code.

Yes, incompatible toner can result in buildup that triggers the SC302-00 alarm.

Ricoh MP C4504 SC302-00 Error: Charging Unit Guide | Vimazdev