This video is about how to fix the hp laserjet m1536 feeder problem by changing the flat flexible cable without replace the whole feeder assembly unit.

Turn the product off, wait 5 seconds, and then remove the power cord before attempting to service the product. If this warning is not followed, severe injury can result, in addition to damage to the product. The power must be on for certain functional checks during troubleshooting. However, disconnect the power supply during parts removal.

Part reference:
Scanner assembly CE538-60118
Document feeder (ADF) assembly CE538-60121