HP Manual
C3980-91018
is compatible in the following HP Models:
HP LaserJet 6 Printer series
HP LASERJET 6MP PRINTER - C3982A
HP LASERJET 6MP REMARKETED PRINTER - C3982AR
HP LASERJET 6P PRINTER - C3980A
HP LASERJET 6P REMARKETED PRINTER - C3980AR
HP LASERJET 6P SE PRINTER - C4212A
HP LASERJET 6P XI PRINTER - C4213A