C-D350bizhub C360

Fix Konica Minolta bizhub C360 Network Error C-D350

The C-D350 error code on the Konica Minolta bizhub C360 indicates a failure to initialize the network interface. This blocks all print and scan-to-folder functions. It is usually related to IP address conflicts or a locked network port.

1 views

Common causes

  • 1IP Address Collision: Another device is using the printer's reserved IP.
  • 2Damaged LAN cable: Signal loss due to internal cable wear.
  • 3Firmware corruption: Incomplete data during a previous update.
  • 4Network switch incompatibility: Mismatch in negotiation speeds.

Solutions

Quick Diagnosis

The error occurs during startup. Check if the green LED on the Ethernet port of the copier is blinking; if it is completely off, the board is not detecting a link.

Step-by-step Solution

  1. Unplug the LAN cable and restart the machine.
  2. Assign a static IP within the machine's settings to avoid DHCP handshake errors.
  3. Hard-set the port speed in the network settings menu if auto-negotiation fails.
  4. Update the system firmware using the Konica Minolta official support tools.

Prevention and Maintenance

Use shielded Category 6 Ethernet cables to minimize noise. Keep firmware updated to prevent communication protocol drift. Ensure your switch port settings match the printer's fixed settings.

When to Call a Technician

If after resetting the network configuration and changing cables the printer still shows C-D350, the onboard NIC is likely fried and requires a mainboard or card swap.

Ficha técnica del equipo

  • Technology: Laser Color
  • Speed: 36 ppm
  • Connectivity: 10/100/1000 Base-T Gigabit
  • Paper Capacity: 1,150+ sheets
  • Compatible Consumables: TN319 Toner Series
  • Recommended Use: Enterprise Office
  • Official Drivers / firmware

Steps to follow

  1. 1

    Physical Isolation

    Disconnect the LAN cable to determine if the error is internal to the MFP.

  2. 2

    Static IP Assignment

    Access the network settings and provide a unique, unused static IP address.

  3. 3

    Speed Negotiation

    Force the duplex/speed settings to match your network switch configuration.

  4. 4

    Firmware Re-flash

    Use the firmware update tool to refresh the NIC software drivers.

Frequently asked questions

It is urgent if you rely on network printing; otherwise, the copier can still function as a standalone device.

No, it is a localized issue with the printer's network board.

It uses the TN319 toner series for all color and black printing.

Ensure your cabling is high quality and use reserved (static) IP addresses for all network equipment.