Thermal transfer printer
US4970531A · kind A · utility
58Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J17/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal transfer printer includes a mark disposed on an ink spool of an ink film cassette, reading device for reading the rotation of the ink spool by use of the mark, a calculation device for calculating the used quantity of ink film by use of the rotation data of the spool, and a display portion for displaying the remaining quantity of ink film obtained by the calculation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.