802B4602

Error 802 OKI B4602: RAM memory system failure

The OKI B4602 error 802 is commonly identified as a critical failure in the device's internal RAM memory module. This incident occurs when the system controller cannot correctly manage print queue data, causing a firmware lock. If your OKI B4602 shows error 802, it is essential to verify network connection integrity and print job file saturation.

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Common causes

  • 1Memory buffer overload due to corrupted print jobs.
  • 2Incompatibility with recently installed drivers.
  • 3Physical damage to the RAM module soldered to the mainboard.
  • 4Outdated firmware version with resource management bugs.

Solutions

Quick Diagnosis

Error 802 appears during complex job processing. Check if the control panel freezes when attempting to send PDFs or large graphic files.

Step-by-Step Solution

  1. Disconnect the network or USB cable and restart the printer.
  2. Access the web interface and clear the cache of stored jobs.
  3. Update the firmware to the latest version available from the official website.
  4. If an optional memory expansion card is installed, remove and re-seat it.

Prevention and Maintenance

Avoid saturating the print queue with simultaneous large jobs. Keep firmware updated to optimize RAM management. Annually, check that internal board contacts do not show corrosion from ambient humidity.

When to Call a Technician

If the 802 error persists after following these steps and updating the firmware, there is a high probability that a physical RAM module is permanently damaged.

Technical Specifications

  • Technology: Laser printing
  • Processor: Integrated high-performance
  • Base Memory: Expandable for complex tasks
  • Consumable: B4602 original cartridge
  • Connectivity: Gigabit LAN / USB
  • Official drivers / firmware