Inked film feeding for a thermal printer
US4689639A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1985 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | May 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal printer for transferring ink from an inked film onto paper using a thermal head includes an inked film feeding mechanism for feeding the inked film, a paper feeding mechanism for feeding the paper, and a platen located opposite the thermal head. For printing the thermal head is brought to the platen with a paper positioned between the thermal head and the platen by the paper feeding mechanism. A release mechanism for releasing the thermal head from the platen is provided. Also provided is a control apparatus which responds to the activation of the release mechanism to disable the film feeding mechanism, thereby stopping the feeding of the inked film at the time the thermal head is released from the platen. The control apparatus also operates to enable the paper feeding mechanism to feed the paper between the thermal head and platen when the thermal head is released from the platen. With this apparatus, the inked film is not fed by the film feeding mechanism while the paper is being fed between the thermal head and the platen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.