Thermal transfer printer including control of relative rates of speed of feeding of ink sheet and recording paper based on corrected count of gradation pulses
US5448283A · kind A · utility
7Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jan 5, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J17/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal transfer printer which controls a speed of an ink sheet based on density information of document image data uses a counting part for counting the number of maximum density pixels or gradation pulses in document image data and uses a speed ratio changing part for changing a speed ratio between a feeding speed of a recording medium and a feeding speed of an ink sheet based on the number of maximum density pixels or gradation pulses which have been counted by the counting part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.