| 摘要 |
<p>A small area (22) of the transfer station is the only shared paper path for the simplex and a duplex feed module. Continuous printing is provided by changing the imaging system (18) input, buffering and/or internal software. Inter document or pitch gap is eliminated in cut sheet printing mode. Only one side image is transferred at a time. While it is being transferred at one transfer station, the portion of the web at the second transfer station is held stationary. A variable size web buffer loop is formed by a translatable roller between the two transfer stations. The loop temporarily stores part of the web having several side one images. When a batch of the images is complete, the web motion at the first transfer station stops. The first transfer station is lifted out of contact with the photoreceptor (16). The second transfer station is moved into contact with the photoreceptor. Then the second side image is transferred. The web portion at the first transfer station is held stationary and paper is supplied to the second transfer station.</p> |
