HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 31)

EN
Copy module control panel features 31
6 R ESET key: Press to return the copy module to its default
setting (Default mode). For more information about Default mode,
see page 51.
7 H ELP key: Press to display explanations of the system keys
and features.
8 A DMINISTRATION F UNCTIONS key: Press to select or cancel out
of the Administration Functions (also called Additional Functions).
9 I NTERRUPT COPY JOB key: Press to interrupt the current copy
job to copy a job that has a higher priority.