Error C3425 on Konica Minolta bizhub and Develop ineo – what it means and what to do

Code C3425 means the fusing unit does not reach its operating temperature within the required time. The device blocks printing so that it does not release unfused prints. The related codes C3421 and C3423 concern the same unit.

What to do first

1. Write the code down or take a photo of the screen – it may disappear after a restart.
2. Turn the device off with the main power switch, wait at least 10 seconds and turn it on again.
3. If the code returns, do not restart repeatedly – give us the code and the device model.

Most common causes

• a worn or damaged heater lamp or temperature sensor in the fusing unit
• a fusing unit that has exceeded its expected service life
• unstable or too low supply voltage – for example a device plugged in through a long extension lead shared with other equipment

What you can do yourself

Check that the device is plugged directly into a wall socket, not into a power strip shared with other equipment. Restart once. Do not open the fusing unit – it is hot and runs on mains voltage.

When to call service

If the code appears again after one restart, turn the device off and call service. Switching it on repeatedly may make the fault worse. Tell us the device model so that we can bring the right part.

Report a fault or call: +48 531 916 060

This description covers typical Konica Minolta bizhub and Develop ineo devices. The exact meaning of a code may differ between models – if in doubt, give us the code and the model. More codes are listed in the help guide with error code search.