602C5652dn

OKI C5652dn error 602: Toner motor failure

The OKI C5652dn error 602 occurs when the printer detects that the motor responsible for supplying toner from the cartridge to the developing unit is not functioning correctly. This prevents colors from being mixed or transferred properly. It is usually caused by an improperly locked cartridge or a motor drive failure.

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Common causes

  • 1Toner cartridge poorly seated on the rail.
  • 2Toner supply motor jammed or damaged.
  • 3Toner gear broken by low-quality material.
  • 4Supply detection sensor failure.

Solutions

Quick Diagnosis

If you see the OKI C5652dn error 602, visually check that all toner cartridges are correctly inserted and locked in their safety tabs.

Step-by-Step Solution

  1. Open the top cover to access the 4 cartridges.
  2. Remove each cartridge and gently shake them to redistribute the toner.
  3. Reinsert each one ensuring they snap correctly into place.
  4. Close the cover and power on the unit.

Prevention and Maintenance

Use only original toners; generic cartridges often have low-quality gears that force the printer's internal motor and cause this error.

When to Call a Technician

If after reinserting the cartridges the 602 error persists, the Toner Supply Motor may have failed or need replacement.

Device Technical Data

  • Technology: Digital LED.
  • Speed: 26 ppm (color).
  • Compatible Consumable: C5650 series toner.
  • Recommended Use: Small office.
  • Official Drivers / firmware