850B930dn

OKI B930dn error 850: Print system logic failure

The OKI B930dn error 850 is a system-level logic exception. It typically arises when the printer's firmware encounters an unparseable print job or when the internal cache becomes corrupted. Follow our troubleshooting guide to reset your print system.

1 views

Common causes

  • 1Corrupted print packet (file error).
  • 2Internal memory cache corruption.
  • 3Outdated firmware failing to interpret new OS print commands.
  • 4Physical failure of the internal RAM memory module.

Solutions

Diagnóstico rápido

Error 850 often occurs when the printer attempts to process a very large or corrupted PDF file. If the error appears on power-up without network connection, it suggests internal memory corruption.

Solución paso a paso

  1. Clear print queue: Delete all pending jobs in your workstation's print spooler.
  2. Forced restart: Disconnect the network, turn the printer off for 10 minutes, then turn it back on as a standalone unit.
  3. Update firmware: If the printer successfully initializes, install the latest firmware version via the manufacturer's official support site.

Prevención y mantenimiento

Avoid printing documents that are overly complex for the printer's cache. If you frequently print high-resolution architectural files, consider adding additional RAM to the printer.

Cuándo llamar a un técnico

If the printer remains in an error 850 state after a factory reset and firmware update, the main logic board's RAM may have failed, necessitating hardware repair.

Ficha técnica del equipo

  • Technology: Corporate monochrome laser printer.
  • Print speed: 50 ppm.
  • Connectivity: Gigabit LAN, USB.
  • Input capacity: Expandable to 2000 sheets.
  • Compatible consumables: B930 series toner.
  • Usage: Corporate workgroups.
  • Official drivers / firmware

Steps to follow

  1. 1

    Clear print queue

    Cancel all pending print jobs on your computer to remove corrupted data.

  2. 2

    Forced restart

    Power off and disconnect the network cable; power on standalone to verify system logic.

  3. 3

    Update firmware

    If successful, check for any available firmware updates.

Frequently asked questions

Error 850 indicates a firmware logic exception, usually caused by processing corrupted file data or memory exhaustion.

Pending print jobs in the queue will be lost, but the source documents on your computer remain perfectly safe.

If the error persists after resetting, it may point to a physical memory (RAM) failure that requires replacement.

Update your printer firmware regularly to ensure it can correctly parse the data structures sent by modern operating systems.