Recording device having rotatable matrix unit and sensor means for detecting relative movement direction, relative speed and rotation angle of matrix column
US4794407A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Nov 12, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for recording of information in the form of characters or symbols onto an information carrier. A recording device of the matrix type (13) is rotatable around an axis perpendicular to a column of the matrix. The recording device is arranged for relative movement relative the actual information carrier and means are arranged for actuating the matrix for information recording in the movement direction dependent on the angle between a matrix column and the movement direction. A sensor arrangement is rotatable together with the matrix column and has means for detecting of at least the parameters relative movement direction, relative speed and said angle. A single processing unit is arranged for controlling the character recording in said predetermined manner dependent on said parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.