Konica - Minolta Bizhub C258 Factory Reset

Pro Tip for C258 Owners: If the machine shows a "Please call service" error (like C-Code C6756 or C2557), a factory reset rarely fixes it. You likely need the Trouble Reset (Method 2) or a firmware update.

Disclaimer: This guide is for informational purposes. Resetting service mode can void service contracts if misused. Consult a Konica Minolta certified technician for persistent hardware errors.

Warning: A factory reset will erase user data, network settings, saved jobs, address book entries, and custom configurations. Back up any important settings or data (address book, scan/print templates, system files) before proceeding.

Summary

Precautions and preparation

  • Notify users and schedule downtime — reset and reconfiguration may take 15–60 minutes depending on options and network.
  • Ensure firmware is available if you plan to reapply updates; note current firmware version.
  • If the device is managed (MFP fleet tools or remote management), inform IT to prepare re-enrollment.

    • Factory reset methods (two common approaches) Note: Menu labels can vary slightly by firmware version. These steps assume the machine is in the Administrator mode.

    Method A — Service Mode (full factory reset; requires service/tech code)

  • In Service Mode, locate the reset option:
  • Select “Initialize All Data” or equivalent.
  • Confirm the operation when prompted. The device will reboot and perform the initialization.
  • After reboot, verify basic functionality and reconfigure network/admin settings.

    • Method B — Administrator-level Initialization (standard factory reset) konica minolta bizhub c258 factory reset

  • Confirm and allow the machine to complete the process and restart.
  • Reconfigure administrator password, network, and other settings.

    • Post-reset checklist

    Troubleshooting / Notes

    References and support

    If you want, I can:

    To factory reset a Konica Minolta bizhub C258, the most effective method is using the Initialization function within the machine's Service Mode. This process clears all settings and data, essentially returning the device to its out-of-the-box state. Method 1: Full Factory Reset (Service Mode)

    This is the standard procedure for completely clearing a used machine or fixing major configuration errors.

    Access Service Mode: On the control panel, press Utility/Counter > Display Keypad. Enter Code: Press the sequence Stop, 0, 0, Stop, 0, 1. Pro Tip for C258 Owners: If the machine

    Navigate to Initialization: Select System 1 from the menu, then tap Initialization.

    Clear All Data: Select Clear All Data and press the Start button on the physical keypad.

    Reboot: Once the screen displays "OK," turn the main power switch off and then back on.

    Note: This process may disable the Hard Drive (HDD) by default. If the machine shows "HDD Not Installed" after rebooting, return to Service Mode (System 2 > HDD) and set it to Installed. Method 2: Administrator Reset (Network & Basic Settings)

    If you only need to reset network configurations or basic machine settings without entering Service Mode, use the Administrator Settings.

    Network Reset: Log in to Administrator Mode (default password is often 12345678 repeated twice) and navigate to Maintenance > Reset > Network Setting Clear.

    Default Machine Settings: Go to System Setting > Default Machine Setting and press Start to reset standard operational defaults. Method 3: Trouble Reset (For Error Codes) Precautions and preparation

    If the machine is locked by a specific error code (like a fuser error), a "Trouble Reset" is required rather than a full factory reset. Turn the main power OFF.

    Press and hold the Yellow Reset Button on the control panel.

    Turn the main power ON while continuing to hold the button until a small black dot appears in the top-right corner of the screen.

    Once the "Trouble Reset" screen appears, tap the button on the screen and restart the machine. Data Disposal (HDD Wipe)

    To securely delete all sensitive information (for disposal or lease return), follow this path:Utility/Counter > Administrator Setting > Security Setting > HDD Management > Delete All Data Setting.

    The previous network settings are stuck. Simply performing a Network Settings Reset (without a full factory reset) is better:

    If the standard menus are locked or corrupted, you may need to enter Service Mode. Caution is advised here; changing settings other than the reset can damage the machine.

    Once you have successfully reset your Konica Minolta bizhub C258, do not just start printing. You need to reconfigure basic settings: