HP
RG5-4241-000CN
is compatible in the following HP Models:
HP LaserJet 3000mfp/All-in-One Printer series
HP LASERJET 3100 ALL-IN-ONE PRINTER - C3948A
HP LASERJET 3100 REMARKETED ALL-IN-ONE PRINTER - C3948AR
HP LASERJET 3100SE ALL-IN-ONE PRINTER - C4175A
HP LASERJET 3100XI ALL-IN-ONE PRINTER - C4177A