HP B5L46-67912 Image Scanner Whole Unit is an integrated scanner assembly for servicing an HP multifunction printer. It is intended as a replacement scanner unit when the printer’s scanning hardware has failed.
HP’s service manual identifies this part as the Integrated Scanner Assembly (ISA). In its troubleshooting procedure, a flatbed lamp that does not light or a scan head that does not move are signs to replace the assembly. This makes the part relevant to repair of those scanner faults.
The listing also names OEM references B5L46-67904 and 767518 for identification.