4. Carefully insert the new filter cover and secure it with the screws.
Finish replacement
1. Ensure that all windows, covers, and doors are closed and remain in their original positions.
2. Turn on the printer.
Replace the power-box fan filters
Remove the filters and replace them with new ones.
Prepare for replacement
1. Replacement fan filters are provided with your printer in the printer yearly maintenance kit. Only
one set of filters is needed for this operation.
2. Ensure that the printer is not printing.
3. If a job has just been printed, wait about 20 minutes for the printer to cool down.
4. You are recommended to wear gloves, mask, and goggles.
5. Ensure that all windows, covers, and doors are closed and remain in their original positions.
6. Remove the build unit from the printer.
7. Turn off the printer.
Replace the power-box fan filters (8VJ66A)
The following steps explain how to replace the power-box fan filters on 3FW25A model printers.
218 Chapter 11 Hardware maintenance
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