Abstract: An electrophotographic imaging system including a combination erase and belt position detection system which may be employed for belt registration or image registration. In one embodiment, the system includes an erase bar having a pattern of light extending longitudinally across a photoconductor belt being moved in a first direction forming a transport path, wherein the erase bar is substantially perpendicular to the first direction. A photodetector is disposed adjacent the photoconductor belt, wherein the photodetector is responsive to light from the erase bar and provides a belt position signal representative of the position of the photoconductor belt relative to the continuous transport path, in a direction substantially perpendicular to the first direction. The belt position signal may be employed for belt steering or modulation of a laser beam representative of latent images to be scanned on the photoconductor belt.