Two speed, duel purpose document handling system
US4000943A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1975 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Feb 13, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/525
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A document handling system for use in a document reproducing machine includes an endless belt conveyor for conveying original documents to the platen of the machine. A magnetic sensor magnetically senses the speed of the photoreceptor drum of the machine and maintains the speed of a servomotor which drives the conveyor belt through a servo amplifier at a speed which is synchronized with the drum, whereby, in a first mode of operation the optics of the machine may be fixed and the original document may be driven across the platen at a speed synchronized to the speed of the drum. A second larger motor may also drive the conveyor belt, in the alternative, at a higher speed through the servomotor in a second mode of operation in which the original document is fed at high speed to the platen and there is held stationary and is scanned by moving optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.