Color printer
US5597251A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Dec 21, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J13/223
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image printing apparatus having high quality image printing capability due to minimized registration errors is provided. The image printing apparatus has a thermal head 18 and a platen roller 15 which is shorter in its circumference than the length of a pro-cut print medium 2 to be printed. An image is printed on the print medium by transporting the print medium and a ink ribbon 23 between the thermal head and the platen roller. A pair of clamp rings 3, 3 are rotatably and respectively provided approximately along both sides of the print medium, and each clamp ring has a circumference being same to or longer than the length pre-cut print medium, and has an internal gear 3b1. A clamper 5 is installed to connect the clamp rings together, and rotates with the print medium being clamped thereby. A capstan roller 7 is installed between the clamp rings and connected to a drive motor 8 to rotate constantly. A passively rotatable pinch roller 10 is installed and depressed to the capstan roller for transporting the print medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.