Position sensing for matrix printer
US4208137A · kind A · utility
12Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1978 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Jan 16, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An alternating current coupled dot column sensing circuit provides delayed dot position signals for control logic of a matrix printer to actuate the printing elements at the proper dot column positions in bi-directional printing. A sensor recognizes edges of slots in a timing strip across the printer and also recognizes end or home positions of the strip for use in such printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.