Browse Prior Art Database

Backup Pick Off Control

IP.com Disclosure Number: IPCOM000078300D
Original Publication Date: 1972-Dec-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Beaudrot, CB: AUTHOR

Abstract

Copy 10 that is electrostatically tacked to xerographic copy drum 11 is normally separated therefrom, by a stream of air from nozzle 12. The separated copy 10 pivots sensing finger 13 against light spring 14 to set ledge 18 under pin 16. Cam 17 rotates under follower pin 18 to allow downward movement of arm 19. This movement is prevented, however, by the arrest of pin 16 by ledge 15. Backup picker finger 20 is thus maintained in its full line position out of contact with drum 11.

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Backup Pick Off Control

Copy 10 that is electrostatically tacked to xerographic copy drum 11 is normally separated therefrom, by a stream of air from nozzle 12. The separated copy 10 pivots sensing finger 13 against light spring 14 to set ledge 18 under pin
16. Cam 17 rotates under follower pin 18 to allow downward movement of arm
19. This movement is prevented, however, by the arrest of pin 16 by ledge 15. Backup picker finger 20 is thus maintained in its full line position out of contact with drum 11.

Should the air from nozzle 12 fail to separate copy 10 from the drum 11, sensing finger 13 will not be pivoted. Arm 19 will thus be free to move downwardly when released by cam 17. pin 21 on arm 19 allows crank arm 22 to be pivoted counterclockwise by spring 23. This motion is transmitted through connection 24 to picker finger 20, to move it to its active broken line position against drum 11 to separate the copy therefrom.

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