摘要:
Method and apparatus for determining the width and location of stored rolls of receiving material (12, 13, 14 and 15) in web form, in which an unrolled initial strip of an inserted roll is fed past a measuring device (35) disposed along a transport path (31, 34) provided jointly for receiving material fed from the rolls (12, 13, 14 and 15). The measuring device (35) determines the width of a roll of web material when its initial strip is cut off by a cutting device (32), the measured value (41) together with a data item (42) representative of the storage location of that roll being stored in a memory (37). In a copying machine (Fig. 2) in which the measuring device (35) is disposed in a common discharge path (34) for cut-off initial strips, such discharge path (34) also acting as a feed path for receiving material in sheet form, margining means (43) are provided to limit the area in which copying is carried out, while when material in sheet form is supplied the marginal width is adjusted in accordance with the sheet width measured by the measuring device (35).