Paper feed assembly (input assembly) for an HP Laserjet 4, 4+, or 5. These three printer models share many common parts including the input assembly which is very similar in the laserjet 4, 4 plus, and 5. The purpose of these two images is to give you an idea of the level of detail we go to when refurbishing a printer.

The clutch bearing gear circled in the first image is connected to the paper feed tire in the second image. This gear (and paper feed tire) should only spin in one direction. When a printer gets dirty the clutch bearing begins to slip and the gear spins in both directions. This gear never had any lubrication from the factory! That's why this gear slips on almost every printer that hasn't been properly cleaned and lubricated. When properly lubricated this gear will last for many years without ever needing service. In this case the assembly will actually perform better than new!