LJ 4101MFP - Subunit

[GHenry]

What/how to repair when the panel displays "subunit life almost over"?? LaserJet 4101mfp

[Big Al]

Can you give us any additional information? I downloaded the manual and there is no mention I could find about a sub unit. The only two lifecycle units seem to be the fuser and the image belt.

Are there any codes with the Subunit display? How many pages printed? If the printer is working fine let it go and keep an eye on it if you can. Before something fails it might tell you some more.

Al