400OKI B412dn

Fix OKI B412dn Error 400: Network Communication Guide

Error 400 on the OKI B412dn is a network communication error that blocks print requests. This status typically appears when there is a mismatch between the host computer and the printer's TCP/IP configuration. Resolving this promptly ensures smooth connectivity in a multi-user office environment.

0 views

Common causes

  • 1IP address conflicts within the local subnet.
  • 2Corrupted print job files in the spooler.
  • 3Incorrect TCP/IP port settings in the printer driver.

Solutions

IP Configuration Check

  1. Access the web interface via the printer's IP address.
  2. Confirm the static IP settings are correct.
  3. Save configuration and restart the unit.

Reset Print Spooler

  1. Open 'services.msc' on your computer.
  2. Locate 'Print Spooler' in the list.
  3. Right-click and select 'Restart'.

Steps to follow

  1. 1

    Get Printer IP

    Print the network configuration page from the printer menu.

  2. 2

    Check Port Settings

    Verify the driver port is pointing to the correct IP address.

  3. 3

    Clear Spooler

    Clear the Windows print queue to ensure no bad data remains.

Frequently asked questions

It is a network-based error indicating a malformed request sent to the print server.

No, it is generally a configuration issue that the end-user can resolve by following these steps.

A factory reset is a last resort; checking network settings first is highly recommended.