![](./images/format-graphic/en_caution.png)
- Unplug the power plug, and then wait for four minutes before starting replacement. Otherwise it may cause an electrical shock.
- After unplugging, remove the cover of the ACD side first.
- Do not touch solder and electronic parts on the PSU after removing it, because electric charge is left in the inside the PSU even if it has been removed. After removing the PSU, do not put it on a conductive object such as one made from metal.
![](attachements/68388982_109150261.jpg)
- Remove the controller box right cover 1 and 2. (Connecting the Connectors between the Roll Holders and Machine)
- Remove the controller box cooling fan [A] with the bracket.
![](attachements/68388982_75202962.jpg)
- Remove the PSU 24V [A].
![](attachements/68388982_75202963.jpg)