DE2507560

1491912 Guiding webs XEROX CORP 21 Feb 1975 [22 Feb 1974] 7343/75 Heading B8R Apparatus for holding flat a photoreceptor belt 12, Fig. 2, in an electrostatic reproduction machine comprises a number of hold-down devices 125, 126, 127, each hold-down device comprising a perforated plate (131, Fig. 5)...

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Bibliographische Detailangaben
Hauptverfasser:	JORDAN, WILLIAM E., PENFIELD, N.Y., US, STEINER, EDWARD L., MACEDON, N.Y., US, FISKE, KENTON W., FAIRPORT, N.Y., US
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY CONVEYING ELECTROGRAPHY ELECTROPHOTOGRAPHY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY MAGNETOGRAPHY PACKING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	1491912 Guiding webs XEROX CORP 21 Feb 1975 [22 Feb 1974] 7343/75 Heading B8R Apparatus for holding flat a photoreceptor belt 12, Fig. 2, in an electrostatic reproduction machine comprises a number of hold-down devices 125, 126, 127, each hold-down device comprising a perforated plate (131, Fig. 5) connected through a chamber and spigot 143 to an induced draught from 168, Fig. 3, the fan being driven by a motor 169 which is controlled by a pressure sensor 170 located in a duct 167 and applying an electric signal to a control device 172 which is effective to start the belt drive when the pressure in the hold-down devices 125 to 127 is at a predetermined value or stop the drive means if the pressure falls below the predetermined value.