3. Open the door.
4. Plug the explosion-protected vacuum cleaner into the material extraction hole, and turn it on for 10
s.
5. Close the door.
6. Put back and tighten the two screws.
7. Repeat the process with the other door.
Clean the fusing-lamp glasses
Clean the fusing-lamp glasses with a cloth and industrial cleaner.
Prepare for cleaning
1. Ensure that you have a lint-free cloth, a general-purpose industrial cleaner (such as Simple Green
industrial cleaner), and a razor scraper (these things are not provided by HP).
WARNING! Sharp knife blade. Handle with care. When scraping a part, do not hold the part in your
hand.
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 required to wear gloves.
5. Ensure that all windows, covers, and doors are closed and remain in their original positions.
6. Turn off the printer.
190 Chapter 11 Hardware maintenance
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