HP
W1A78-67903
is compatible in the following HP Models:
HP Color LaserJet MFP M478-M479 series
HP Color LaserJet Pro MFP M478-M479 - W1A77A
HP Color LaserJet Pro MFP M478-M479 - W1A78A
HP Color LaserJet Pro MFP M478-M479 - W1A79A
HP Color LaserJet Pro MFP M478-M479 - W1A80A