HP 3550 - Manual (Page 139)

To reset the fuser count
1. Press M
ENU
to enter the MENUS.
2. Press to highlight Configure Device.
3. Press to select Configure Device.
4. Press to highlight RESETS.
5. Press to select RESETS.
6. Press to highlight RESET SUPPLIES.
7. Press to select RESET SUPPLIES.
8. Press to highlight NEW FUSER KIT.
9. Press to select NEW FUSER KIT.
10. Press to highlight YES.
11. Press to select YES.
The fuser count is reset and the printer is ready to use.
ENWW Replacing supplies and parts 127