High Speed Paper Unload Stripper Bar
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-08
Unloading paper from a drum in a printer is typically done at low speed (less than 50 cm per second). The single finger and stripper bar shown above is capable of unloading paper moving at a surface velocity of 500 cm per second. The stripper bar is oriented so that its main deflection surface is tangent to the print drum carrying the paper to be unloaded. The leading edge of this tangent plane, however, recesses relative to the point on the bar where a stripper finger starts the paper up onto the stripper bar. A frontal plate on the stripper bar is provided between this leading edge and the drum surface. This frontal plate paper sheet adjacent to the stripper bar as it leaves the drum. The stripper finger that starts the unloading of the paper also has a compound profile.