Document endorsing control circuitry and method for minimizing power consumption requirements
US4023489A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1976 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Feb 6, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B17/00508
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Electrical control circuitry for driving a rotational print head to initiate an endorsement on a single side of paper checks traveling past the print head at a relatively constant velocity, including a bistable device operatively connected to control a ramp generator for accelerating the print head at a relatively constant rate from a stopped position to a present printing velocity and then decelerating the print head to a rest state at the same relatively constant rate after completion of document endorsement. The circuitry responds to closely-spaced documents entering the endorser by interrupting the head during its deceleration mode and maintaining the head at its interrupted velocity for a certain time delay in order to reaccelerate the head back to printing velocity at the same relatively constant rate in time for proper endorsement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.