Wheel supported carriage for a scanning plotter
US4978979A · kind A · utility
5Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Aug 3, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A carriage for a scanning ink jet plotter has at least two roller supports which ride on the platen or on the drafting surface to maintain a constant spacing between an ink jet mounted on the carriage and the drafting surface to improve resolution of the plotted lines. A biasing spring may also be used the urge the roller supports into contact with the drafting surface for further enhanced resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.