Basically, the entire fusing unit must be replaced when SC544-00 or SC554-00 occurs. However, it is possible to continue to use the old fusing unit when there is no damage found when you inspect the fusing unit in accordance with the flow chart shown below.

*1:
Do not open the door when doing the procedure in this flow chart (“SC reset failure” will be shown.). The SC reset will be successful if the fuse for new fusing unit detection is blown if the machine door is open during the SC reset, and it will not be successful if it is not blown. The SC reset should be performed again if it fails.

“SC reset failure” will be shown when this SP (SP5-810-002) is executed if an SC other than SC544-00/SC554-00 occurred.

*2: If there is no fuse for new unit detection (such as in the fusing unit that comes with the machine from the factory), install a fuse.

  • Never use a damaged fusing unit.
  • Inspect the entire fusing unit carefully if you will continue to use this unit.