c443e-STUDIO 3515AC

Toshiba e-STUDIO 3515AC error C443: Fix

The Toshiba e-STUDIO 3515AC error C443 refers to a high-voltage drum charging failure. Read this guide to understand why my Toshiba e-STUDIO 3515AC shows error C443.

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Common causes

  • 1Connection failure to HV source.
  • 2Drum cartridge end of life.
  • 3Corroded electrical contacts.
  • 4Failed power unit.

Solutions

Quick Diagnosis

C443 means the high-voltage circuit to the drum is failing. Check contacts.

Step-by-Step Solution

  1. Check: Verify drum seating.
  2. Reboot: Turn off for 15 minutes.
  3. Clean: Wipe contacts.
  4. Reset: Power back on.

Prevention and Maintenance

Use genuine kits. Keep humidity in range.

When to call a technician

If reboot fails, high-voltage supply is likely damaged.

Device Technical Specifications

Steps to follow

  1. 1

    Check drum

    Ensure drum cartridge is correctly seated.

  2. 2

    Power cycle

    Unplug for 15 minutes.

  3. 3

    Clean

    Clean electrical contacts.

Frequently asked questions

This is a high-voltage drum bias failure. The machine cannot charge the drum properly.

Physical installation check is okay, but service technician is needed for electrical faults.

Only use official Toshiba image kits.

Keep the machine away from extreme humidity.