| 摘要 |
<p>Disclosed herein is a method and apparatus for transporting discrete, electrostatic image-bearing sheets (S) of photoconductive film along a path past a magnetic brush development station (10) of an electrographic copier. To prevent the leading edge of successive film sheets from plowing through the brush nap (N) and thereby causing developer contamination of the rear surface of the sheets, the lead edge of each sheet is overlapped with the trailing edge of the preceding sheet before it arrives at the brush nap. By this arrangement, the leading edge of such successive sheet is shielded from the brush nap by the preceding sheet. The apparatus of the invention comprises first and second sheet transport means (18a, 20, M1; 18b, 32, 34, M2) which function to advance the film sheets toward the development station at one velocity and through such station at a slower velocity. The downstream transport means (18b) also functions to locate the trailing edge of a sheet advanced thereby in a position to allow the leading edge of a faster moving succeeding sheet to overlap. </p> |
