Paper feeder device for miniaturized printers
US4300712A · kind A · utility
1Cited by
11References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | May 12, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper feeder device for miniaturized printers, comprising a paper feed roller, first and second ratchet wheels fixedly mounted on a drive shaft of the paper feed roller and having the respective teeth inclined in the opposite directions, a first lever for driving the first ratchet wheel to rotate the paper feed roller at a predetermined amount, and a second lever which is controlled by the first lever and which has an engagement pawl capable of being inserted into a recess between two adjacent teeth of the second ratchet wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.