41.5 printer error – HP LaserJet 4000, 4050, 4100
The HP laserjet  4000, 4050, 4100 have been great machines in offices since the 1990’s. The machines with their strong print engines, durable parts, and low maintenance requirements have made HP’s laserjet  printer quality legendary. However, as these machines age more problems are starting to happen. One of the more common error codes in the HP laserjet 4000, 4050, 4100 as they age is the 41.5 printer error. In this article I would like to point out the different parts in the HP 4000, 4050, and 4100 that can cause the 41.5 printer error.
Troubleshooting the HP 4000, 4050, 4100 41.5 Printer Error.
Several things can cause the 41.5 printer error in the HP laserjet  4000, 4050, and 4100. The easiest one to check is the feed/separation roller in the tray or inside the cassette cavity. Make sure they are properly clipped into place especially the tray roller. Sometimes when cleaning or replacing like when the PM kit is needed people pull the roller out and quickly install the new roller not bothering to check and make sure the roller is clicked into place. It has to mesh with the black torque limiter and the limiter on the opposite site has to mesh with the metal shaft the two parts sits on for proper installation. Second and the most common one I see is the feed assembly behind the tray 1 pick up assembly. I’ve made it a spare part to carry around in my car stock. There really isn’t an easy way to troubleshoot this other than to make sure the feed/separation rollers are properly installed and try to print from tray one and see if the 41.5 printer error happens from that tray. If the 41.5 printer error doesn’t happen from tray 1 then best bet is to replace the feed assembly. The third cause of the 41.5 printer error in the HP laserjet 4000, 4050, and 4100  could be a broken or damaged sensor flag for the feed or registration assembly. One flag sits in the middle of the registration assembly and the other is located behind the feed assembly discussed above. Both parts are on the same assembly but replacement involves removal of the engine board.
Conclusion About the 41.5 Printer Error
Troubleshooting the HP 41.5 printer error can be tricky to troubleshoot due to the fact that several things can cause the error. However, if you work through the steps above in this article you can hopefully, Â diagnose the 41.5 printer error.
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