Abstract: A method for converting an analog document reproduction device to a digital document reproduction device is provided, wherein the analog document reproduction device has a light source for illuminating at least a portion of a document, a mirror for receiving the illumination reflected by the document, a first lens for receiving the illumination from the mirror and for projecting said illumination onto a photoconductor. The photoconductor is capable of converting the illumination into a toner image of the document. The method comprises the steps of providing an assembly having a second lens for receiving the illumination reflected from the document and having a light conversion member for converting the illumination into a voltage signal. The assembly is installed in the analog document reproduction device so that the assembly can receive the illumination reflected from the document in a digital mode.