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BI-ROLL INVERTER Disclosure Number: IPCOM000025131D
Original Publication Date: 1983-Oct-31
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


In many copier/duplicator machines, sheet inversion is required. An inverter apparatus is disclosed that accomplishes this requirement while maintaining a positive hold on a sheet. In the figure a bi-roll inverter 10 is shown that inverts sheets without regard to sheet properties or condition during the inversion process and includes a sheet transport nip formed between reversible rollers 50 and 51 mounted on shafts 56 and 57 and driven by belts 25. Clutches 20 ans 21 are also mounted on shafts 56 and 57 respectively. When inversion is required, clutch 20 is actuated while clutch 21 is deactuated causing the sheet 30 to be driven to the left by the roller nip 50, 51. After sensor 40 has been cleared by the sheet, clutch 21 is actuated in order to reverse rotation of roller nip 50, 51 and drive sheet 30 back out of the inverter for further processing.