Abstract: A half-lens/mirror type copier having object-plane to image-plane reduction. The copier's scanning mechanism includes first and second moving mirrors. The first mirror line-scans a stationary original document to be copied. The second mirror receives the document's image, which is reflected from the first mirror, and directs this image to a half-lens/mirror. The half-lens/mirror's optical axis is located off-axis of the image received from the second mirror, and directs this image onto a stationary mirror. The stationary mirror directs the image onto the copier's moving photoconductor.The scanning mechanism can be parked at an end-of-scan position, and the original document is then moved past the stationary scanning mechanism, to thereby direct the document's image onto the copier's moving photoconductor.In order to achieve reduction, in either the scanning mode or the parked mode, the copier is initialized by moving second mirror and the half-lens/mirror a disclosed distance.