Paper sheet and envelope feeder apparatus
US4733310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | May 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is disclosed a paper feeder apparatus attached to a printer or other device. The paper feeder apparatus employs two trays each of which are capable of accommodating papers of different sizes and an envelope tray for accommodating envelopes. The feeder is controlled by a host computer of the type capable of generating feeder and printer control commands. These commands are transmitted to control logic associated with the paper feeder which control logic is under control of a microprocessor. The microprocessor assumes complete control of the entire paper feed mechanism and communication to the printer. Thus, the microprocessor operates two motors associated with the paper feed path. A first motor is operated so that a sheet of paper can be withdrawn from either of the two trays and then transported along a paper path. A sensor in conjunction with the path determines the exact position of the paper which then causes the microprocessor to actuate a second drive motor to assure that the paper is brought into the vicinity of the printer input slot. The microprocessor, as indicated, performs all control functions as driving motors and operating solenoids to assure that a proper feed…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.